Mercurial > ecos-v3_0-branch

annotate packages/hal/sh/arch/current/src/vectors.S @ 132:0ae0bc38e387 ecos-sw-2000-10-31

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Merge from eCos master repository on 2000-10-31-00:30:36-GMT
author jlarmour
date Tue, 31 Oct 2000 20:53:09 +0000
parents eb9fd8c04db3
children d2f49caf9e38
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1 ##==========================================================================
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2 ##
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3 ## vectors.S
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4 ##
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5 ## SH exception vectors
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6 ##
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7 ##==========================================================================
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8 #####COPYRIGHTBEGIN####
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9 #
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10 # -------------------------------------------
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11 # The contents of this file are subject to the Red Hat eCos Public License
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12 # Version 1.1 (the "License"); you may not use this file except in
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13 # compliance with the License. You may obtain a copy of the License at
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14 # http://www.redhat.com/
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15 #
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16 # Software distributed under the License is distributed on an "AS IS"
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17 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 # License for the specific language governing rights and limitations under
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19 # the License.
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20 #
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21 # The Original Code is eCos - Embedded Configurable Operating System,
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22 # released September 30, 1998.
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23 #
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24 # The Initial Developer of the Original Code is Red Hat.
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25 # Portions created by Red Hat are
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26 # Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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27 # All Rights Reserved.
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28 # -------------------------------------------
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29 #
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30 #####COPYRIGHTEND####
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31 ##==========================================================================
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32 #######DESCRIPTIONBEGIN####
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33 ##
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34 ## Author(s): jskov
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35 ## Contributors: jskov, gthomas
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36 ## Date: 1999-05-01
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37 ## Purpose: SH exception vectors
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38 ## Description: This file defines the code placed into the exception
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39 ## vectors. It also contains the first level default VSRs
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40 ## that save and restore state for both exceptions and
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41 ## interrupts.
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42 ## Notes: The SH architecture files are still more SH3 specific than
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43 ## architecture neutral, hence the sub-variant configury.
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44 ######DESCRIPTIONEND####
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45 ##
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46 ##==========================================================================
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47
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48 #include <pkgconf/hal.h>
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49 #include <pkgconf/hal_sh.h>
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50
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51 #ifdef CYGPKG_KERNEL
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52 #include <pkgconf/kernel.h> // CYGPKG_KERNEL_INSTRUMENT
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53 #endif
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54
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55 #include <cyg/hal/arch.inc>
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56 #include <cyg/hal/sh_regs.h>
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57 #include <cyg/hal/sh_offsets.inc>
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58
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59 #include <cyg/hal/hal_intr.h>
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60
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61
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62 #===========================================================================
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63
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64 .file "vectors.S"
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65
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66 #undef __DEBUG
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67
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68 #===========================================================================
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69 # SR initialization value
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70 # zero all bits except:
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71 # MD = Processor operation mode field (privileged mode)
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72 # I0-3 = Mask out all interrupts but NMI.
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73 #
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74 # When saving or restoring the state of an exception or interrupt, the bit
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75 # CYGARC_REG_SR_RB is also set, switching the register bank. When this bit
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76 # is set, interrupts must be disabled.
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77 #
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78 # Note: We could also use the BL bit to prevent interrupts, but that would
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79 # also prevent the use of breakpoints.
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80
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81 #define CYG_SR (CYGARC_REG_SR_MD|CYGARC_REG_SR_IMASK)
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82 #define CYG_SR_BANK1 (CYGARC_REG_SR_MD|CYGARC_REG_SR_IMASK|CYGARC_REG_SR_RB)
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83
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84 #===========================================================================
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85 # Start by defining the exceptions vectors.
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86 .section ".vectors","ax"
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87
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88 # reset 0xa0000000
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89 # other exceptions VBR+0x100
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90 # tlb miss VBR+0x400
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91 # interrupts VBR+0x600
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92
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93
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94 #===========================================================================
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95 # Reset code must be PC relative so it can be executed out of the shadow
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96 # area during startup. Not until after hal_hardware_init can the system
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97 # be expected to provide the proper address space (at that time we
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98 # jump to the VMA base of the code).
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99
105
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100 .org 0x000
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101 .globl __reset;
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102 __reset:
105
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103 mov.l $__reset_platform,r0
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104 jmp @r0
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105 nop
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106
105
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107 # Note: this is the unmapped, shadow address of the start of code
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108 # Sadly, it is too far to just branch to.
107
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109 .align 2
105
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110 $__reset_platform:
107
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111 #ifdef CYG_HAL_STARTUP_RAM
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112 .long __reset_platform
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113 #else
112
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114 .long __reset_platform+0x20000000 // Uncached "shadow" address
107
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115 #endif
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116
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117 #---------------------------------------------------------------------------
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118 # Exception entry
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119
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120 .org 0x100
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121 __exception:
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122
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123 #if defined(CYGPKG_KERNEL_INSTRUMENT) && defined(CYGDBG_KERNEL_INSTRUMENT_INTR)
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124 mov #1,r7
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125 #endif
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126
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127 mov #CYGARC_REG_EXCEVT,r1
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128 mov.l @r1,r1
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129 shlr2 r1
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130 shlr r1 ! divide cause by 0x08
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131 mov.l $_hal_vsr_table,r0
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132 mov.l @(r0,r1),r1
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133 jmp @r1
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134 nop
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135
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136 .align 2
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137 $_hal_vsr_table:
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138 .long _hal_vsr_table
76
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139
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140 #---------------------------------------------------------------------------
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141 # This code handles the common part of all exception handlers.
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142 # It saves the machine state onto the stack and then calls
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143 # a "C" routine to do the rest of the work. This work may result
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144 # in thread switches, and changes to the saved state. When we return
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145 # here the saved state is restored and execution is continued.
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146
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147 .globl _cyg_hal_default_exception_vsr
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148 _cyg_hal_default_exception_vsr:
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149
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150 # We come here with all register containing their
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151 # pre-exception values except:
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152 # r0_b-r7_b = saved r0-r7
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153 # r7 = vector #
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154 # spc = saved pc
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155 # ssr = saved sr
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156
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157 # Save away some registers
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158 mov r15,r1 ! entry sp
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159
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160 #ifdef __DEBUG
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161 mov.l $exc_state_marker,r0
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162 mov.l r0,@-r15
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163 mov #CYGARC_REG_EXCEVT,r0
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164 mov.l @r0,r0
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165 mov.l r0,@-r15
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166 #endif
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167
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168 #ifdef CYGDBG_HAL_COMMON_INTERRUPTS_SAVE_MINIMUM_CONTEXT
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169 add #-12,r15 ! Space for cause, gbr, and vbr
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170 #else
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171 add #-4,r15 ! Space for cause
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172
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173 stc gbr,r0 ! GBR
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174 mov.l r0,@-r15
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175 stc vbr,r0 ! VBR
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176 mov.l r0,@-r15
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177 #endif
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178
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179 stc spc,r0
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180 mov.l r0,@-r15 ! PC
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181 stc ssr,r0
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182 mov.l r0,@-r15 ! SR
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183
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184 sts.l pr,@-r15 ! PR
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185 sts.l mach,@-r15 ! mach
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186 sts.l macl,@-r15 ! macl
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187
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188 mov.l r1,@-r15 ! entry sp
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189 mov.l r14,@-r15 ! r14-r0
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190 mov.l r13,@-r15
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191 mov.l r12,@-r15
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192 mov.l r11,@-r15
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193 mov.l r10,@-r15
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194 mov.l r9,@-r15
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195 mov.l r8,@-r15
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196 stc.l r7_bank,@-r15
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197 stc.l r6_bank,@-r15
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198 stc.l r5_bank,@-r15
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199 stc.l r4_bank,@-r15
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200 stc.l r3_bank,@-r15
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201 stc.l r2_bank,@-r15
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202 stc.l r1_bank,@-r15
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203 stc.l r0_bank,@-r15
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204
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205 # After setting the SR it will be possible to use breakpoints.
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206 mov.l $nCYG_SR1,r1
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207 ldc r1,sr
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208 # ------------------------------------------------------------
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209 # Register bank has changed now.
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210
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211 #ifdef __DEBUG
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212 # It is safe to use breakpoints below this point.
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213 .globl _cyg_hal_default_exception_vsr_bp_safe
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214 _cyg_hal_default_exception_vsr_bp_safe:
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215 #endif
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216 mov #CYGARC_REG_EXCEVT,r0
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217 mov.l @r0,r4
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218 mov #-5,r0 ! divide cause by 0x20
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219 shld r0,r4
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220 mov #CYGARC_SHREG_EVENT,r0
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221 mov.l r4,@(r0,r15) ! store decoded vector number back
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222
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223 # The entire CPU state is now stashed on the stack,
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224 # call into C to do something with it.
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225
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226 mov r15,r4 ! R4 = register dump
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227
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228 mov.l $restore_state,r0 ! get return link
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229 lds r0,pr ! to procedure register
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230
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231 mov.l $_cyg_hal_exception_handler,r0
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232 jmp @r0 ! call C code, r4 = registers
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233 nop
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234
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235 .align 2
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236 $restore_state:
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237 .long restore_state
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238 $nCYG_SR1:
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239 .long CYG_SR
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240
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241 #ifdef __DEBUG
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242 $exc_state_marker:
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243 .long 0x77777770
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244 #endif
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245
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246 .extern _cyg_hal_exception_handler
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247
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248 $_cyg_hal_exception_handler:
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249 .long _cyg_hal_exception_handler
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250
82
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251 #---------------------------------------------------------------------------
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252 # TLB miss entry
76
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253
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254 .org 0x400
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255 __tlb_miss:
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256 #if defined(CYGPKG_KERNEL_INSTRUMENT) && defined(CYGDBG_KERNEL_INSTRUMENT_INTR)
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257 mov #2,r7
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258 #endif
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259
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260 mov #CYGARC_REG_EXCEVT,r1
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261 mov.l @r1,r1
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262 shlr2 r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff changeset
263 shlr r1 ! divide cause by 0x08
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
264 mov.l $_hal_vsr_table2,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
265 mov.l @(r0,r1),r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
266 jmp @r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
267 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
268
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
269 .align 2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
270 $_hal_vsr_table2:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
271 .long _hal_vsr_table
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
272
82
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
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diff changeset
273 #---------------------------------------------------------------------------
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
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diff changeset
274 # Interrupt entry
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
275
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
276 .org 0x600
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
277 __interrupt:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
278
128
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
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diff changeset
279 #ifdef CYGHWR_HAL_SH_IRQ_HANDLE_SPURIOUS_INTERRUPTS
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
280 # A spurious interrupt with INTEVT=0 may be caused by
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
281 # clearing of BL. Those interrupts need to be ignored.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
282 mov #CYGARC_REG_INTEVT,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
283 mov.l @r0,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
284 cmp/eq #0,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
285 bf 1f
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
286 rte
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
287 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
288 1:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
289 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
290
84
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
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diff changeset
291
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
292 #if defined(CYGPKG_KERNEL_INSTRUMENT) && defined(CYGDBG_KERNEL_INSTRUMENT_INTR)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
293 mov #3,r7
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
294 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
295
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
296 mov.l $_hal_vsr_table_int,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
297 mov.l @r1,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
298 jmp @r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
299 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
300
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
301 .align 2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
302 $_hal_vsr_table_int:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
303 .long _hal_vsr_table+CYGNUM_HAL_VECTOR_INTERRUPT*4
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
304
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
305 #---------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
306 # Common interrupt handling code.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
307
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
308 .globl _cyg_hal_default_interrupt_vsr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
309 _cyg_hal_default_interrupt_vsr:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
310
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
311 # We come here with all register containing their
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
312 # pre-exception values except:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
313 # r0_b-r7_b = saved r0-r7
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
314 # r7 = vector #
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
315 # spc = saved pc
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
316 # ssr = saved sr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
317
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
318 # Save away some registers
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
319 mov r15,r1 ! entry sp
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
320
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
321 #ifdef CYGDBG_HAL_COMMON_INTERRUPTS_SAVE_MINIMUM_CONTEXT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
322 add #-12,r15 ! Space for cause, gbr, and vbr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff changeset
323 #else
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
324 add #-4,r15 ! Space for cause
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
325
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
326 stc gbr,r0 ! GBR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
327 mov.l r0,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
328 stc vbr,r0 ! VBR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
329 mov.l r0,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
330 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
331
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
332 stc spc,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
333 mov.l r0,@-r15 ! PC
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
334 stc ssr,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
335 mov.l r0,@-r15 ! SR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
336
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
337 sts.l pr,@-r15 ! PR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
338 sts.l mach,@-r15 ! mach
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
339 sts.l macl,@-r15 ! macl
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
340
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
341 mov.l r1,@-r15 ! entry sp
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
342 mov.l r14,@-r15 ! r14-r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
343 mov.l r13,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
344 mov.l r12,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
345 mov.l r11,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
346 mov.l r10,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
347 mov.l r9,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
348 mov.l r8,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
349 stc.l r7_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
350 stc.l r6_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
351 stc.l r5_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
352 stc.l r4_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
353 stc.l r3_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
354 stc.l r2_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
355 stc.l r1_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
356 stc.l r0_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
357
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
358 # After setting the SR it will be possible to use breakpoints.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
359 mov.l $nCYG_SR2,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
360 ldc r1,sr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
361 # ------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
362 # Register bank has changed now.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
363
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
364 #ifdef __DEBUG
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
365 # It is safe to use breakpoints below this point.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
366 .globl _cyg_hal_default_interrupt_vsr_bp_safe
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
367 _cyg_hal_default_interrupt_vsr_bp_safe:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
368 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
369
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
370 # The entire CPU state is now stashed on the stack,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
371 # call into C to do something with it.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
372
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
373 # The entire CPU state is now stashed on the stack,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
374 # increment the scheduler lock and call the ISR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
375 # for this vector.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
376
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
377 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff changeset
378 mov.l $cyg_scheduler_sched_lock,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
379 mov.l @r0,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
380 add #1,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
381 mov.l r1,@r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
382 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
383
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
384 mov r15,r8 ! R8 = register dump
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
385
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
386 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
387
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
388 mov.l $__interrupt_stack_base,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
389 mov.l $__interrupt_stack,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
390 cmp/hi r15,r0 ! if r0 > r15 or
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
391 bt 2f
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
392 cmp/hi r1,r15 ! if r15 > r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
393 bf 1f
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
394 2: mov r1,r15 ! change to supervisor stack
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
395 1: mov.l r8,@-r15 ! save old stack pointer
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
396
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
397 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
398
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
399 #if defined(CYGPKG_KERNEL_INSTRUMENT) && defined(CYGDBG_KERNEL_INSTRUMENT_INTR)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
400 mov.l $n0301,r4 ! arg0 = type = INTR,RAISE
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
401 mov r7,r5 ! arg1 = vector number
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
402 mov.l $_cyg_instrument,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
403 mov #0,r6 ! arg2 = 0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
404 jsr @r0 ! call instrument function
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
405 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
406 bra 1f
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
407 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
408
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
409 .align 2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
410 $n0301:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
411 .long 0x0301
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
412 $_cyg_instrument:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
413 .extern _cyg_instrument
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
414 .long _cyg_instrument
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
415 1:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
416 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
417
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
418 # Decode the interrupt vector
82
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
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parents: 80
diff changeset
419 #ifdef CYGARC_SH_MOD_INTC_V2
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
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parents: 80
diff changeset
420 mov.l $nCYGARC_REG_INTEVT2,r0
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
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parents: 80
diff changeset
421 #else
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
422 mov #CYGARC_REG_INTEVT,r0
82
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
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parents: 80
diff changeset
423 #endif
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
424 mov.l @r0,r4
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
425 mov #-5,r0 ! divide cause by 0x20
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
426 shld r0,r4
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
427 add #-14,r4 ! adjust so NMI becomes 0
126
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST
jlarmour
parents: 115
diff changeset
428
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
429 mov #CYGARC_SHREG_EVENT,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
430 mov.l r4,@(r0,r8) ! store decoded vector number back
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
431 ! to saved state.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
432
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
433 // Find ISR index.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
434 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_CHAIN
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
435 #define CYG_ISR_TABLE_SIZE 1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
436 mov #0,r9 ! only one ISR in the table
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
437 #else // CYGIMP_HAL_COMMON_INTERRUPTS_CHAIN
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
438 #define CYG_ISR_TABLE_SIZE CYGNUM_HAL_ISR_COUNT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
439 mov r4,r9
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
440 shll2 r9 ! get from vector number to ISR index
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
441 #endif // CYGIMP_HAL_COMMON_INTERRUPTS_CHAIN
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
442
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
443
105
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
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parents: 101
diff changeset
444 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT) \
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
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parents: 101
diff changeset
445 || defined(CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT)
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
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parents: 101
diff changeset
446 # If we are supporting Ctrl-C interrupts from GDB, we must squirrel
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
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parents: 101
diff changeset
447 # away a pointer to the save interrupt state here so that we can
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
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parents: 101
diff changeset
448 # plant a breakpoint at some later time.
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parents: 101
diff changeset
449
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diff changeset
450 mov.l $_hal_saved_interrupt_state,r1
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
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parents: 101
diff changeset
451 mov.l r8,@r1
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
452 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
453
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
454 #ifdef CYGSEM_HAL_COMMON_INTERRUPTS_ALLOW_NESTING
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
455
101
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST
jlarmour
parents: 99
diff changeset
456 #if defined(CYGARC_SH_SOFTWARE_IP_UPDATE)
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
457 # The interrupt mask bits in the SR are not updated by the
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
458 # CPU. Proper nested operation requires the level to be
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
459 # found and put in the SR.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
460
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
461 # R4 contains the vector number:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
462 # CYGNUM_HAL_INTERRUPT_NMI:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
463 # Ix = 15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
464 # CYGNUM_HAL_INTERRUPT_LVL0-CYGNUM_HAL_INTERRUPT_LVL14:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
465 # Ix = 15-(CYGNUM_HAL_INTERRUPT_LVL0-R4)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
466 # IRA sources:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
467 # Get level from IRA
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
468 # IRB sources:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
469 # Get level from IRB
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
470
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
471 # However, doing mutiple checks and branches here is not smart.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
472 # Instead rely on alternative implementation where all programmed
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
473 # priorities are also kept in a table.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
474
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
475 mov.l $cyg_hal_ILVL_table,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
476 mov.b @(r0,r4),r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
477 shll2 r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
478 shll2 r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
479 mov.l $unmasked_SR,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
480 or r0,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
481 ldc r1,sr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
482 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
483
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
484 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
485
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
486 mov r9,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
487 mov.l $_hal_interrupt_handlers,r1 ! get interrupt handler
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
488 mov.l @(r0,r1),r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
489
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
490 mov.l $_hal_interrupt_data,r5 ! get interrupt data
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
491 mov.l @(r0,r5),r5
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
492
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
493 jsr @r1 ! r4=vector, r5=data
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
494 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
495
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
496 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
497
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
498 # If we are returning from the last nested interrupt, move back
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
499 # to the thread stack. interrupt_end() must be called on the
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
500 # thread stack since it potentially causes a context switch.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
501 # Since we have arranged for the top of stack location to
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
502 # contain the sp we need to go back to here, just pop it off
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
503 # and put it in SP.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
504
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
505 mov.l @r15,r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
506 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
507
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
508 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
509
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
510 # We only need to call _interrupt_end() when there is a kernel
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
511 # present to do any tidying up.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
512
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
513 # on return r0 bit 1 will indicate whether a DSR is
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
514 # to be posted. Pass this together with a pointer to
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
515 # the interrupt object we have just used to the
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
516 # interrupt tidy up routine.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
517 mov r0,r4 ! arg1 = isr_ret
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
518
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
519 # Note that r8 and r9 are defined to be preserved across
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
520 # calls by the calling convention, so they still contain
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
521 # the register dump and the vector table index respectively.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
522
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
523 mov.l $_hal_interrupt_objects,r0 ! get interrupt object table
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
524 mov.l @(r0,r9),r5 ! arg2 = interrupt object
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
525 mov.l $_interrupt_end,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
526 mov r8,r6 ! arg3 = saved register dump
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
527 jsr @r0 ! call into C to finish off
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
528 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
529 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
530
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
531 restore_state:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
532 # All done, restore CPU state and continue
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
533
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
534 # Disable interrupts and switch register bank during the restore
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
535 # operation
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
536 mov.l $nCYG_SR_BANK1,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
537 ldc r1,sr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
538 # ------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
539 # Register bank has changed now.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
540
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
541 #
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
542 # Single step debugging becomes impossible after this point!
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
543 #
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
544
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
545 mov r15,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
546 ldc.l @r0+,r0_bank
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
547 ldc.l @r0+,r1_bank
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
548 ldc.l @r0+,r2_bank
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
549 ldc.l @r0+,r3_bank
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
550 ldc.l @r0+,r4_bank
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
551 ldc.l @r0+,r5_bank
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
552 ldc.l @r0+,r6_bank
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
553 ldc.l @r0+,r7_bank
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
554 mov.l @r0+,r8
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
555 mov.l @r0+,r9
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
556 mov.l @r0+,r10
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
557 mov.l @r0+,r11
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
558 mov.l @r0+,r12
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
559 mov.l @r0+,r13
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
560 mov.l @r0+,r14
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
561 mov.l @r0+,r15 ! return SP
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
562
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
563 lds.l @r0+,macl ! macl
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
564 lds.l @r0+,mach ! mach
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
565 lds.l @r0+,pr ! PR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
566
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
567 mov.l @r0+,r2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
568 ldc r2,ssr ! return SR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
569 mov.l @r0+,r2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
570 ldc r2,spc ! return PC
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
571
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
572 #ifndef CYGDBG_HAL_COMMON_INTERRUPTS_SAVE_MINIMUM_CONTEXT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
573 mov.l @r0+,r2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
574 ldc r2,vbr ! return VBR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
575 mov.l @r0+,r2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
576 ldc r2,gbr ! return GBR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
577 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
578
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
579 rte
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
580 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
581
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
582
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
583 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
584 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
585 ##-----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
586 ## Execute pending DSRs on the interrupt stack with interrupts enabled.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
587 ## Note: this can only be called from code running on a thread stack
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
588 .globl _hal_interrupt_stack_call_pending_DSRs
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
589 _hal_interrupt_stack_call_pending_DSRs:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
590 # Change to interrupt stack
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
591 mov r15,r2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
592 mov.l $__interrupt_stack,r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
593
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
594 mov.l r2,@-r15 ! save old stack pointer
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
595 sts.l pr,@-r15 ! save pr on stack
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
596 stc sr,r3
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
597 mov.l r3,@-r15 ! save sr on stack
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
598
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
599 # enable interrupts
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
600 hal_cpu_int_enable r0,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
601
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
602 # Call into kernel which will execute DSRs
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
603 mov.l $_cyg_interrupt_call_pending_DSRs,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
604 jsr @r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
605 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
606
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
607 # Get old sr, pr, and stack values
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
608 mov.l @r15+,r3 ! get old sr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
609 lds.l @r15+,pr ! get old pr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
610 mov.l @r15+,r15 ! get old stack pointer
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
611
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
612 # Restore SR interrupt state
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
613 hal_cpu_int_merge r3,r0,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
614 rts
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
615 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
616
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
617 #endif // CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
618 #endif // CYGFUN_HAL_COMMON_KERNEL_SUPPORT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
619
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
620 .align 2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
621 #ifdef __DEBUG
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
622 $int_state_marker:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
623 .long 0x77777771
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
624 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
625
105
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
626 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT) \
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
627 || defined(CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT)
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
628 .extern _hal_saved_interrupt_state
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
629 $_hal_saved_interrupt_state:
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
630 .long _hal_saved_interrupt_state
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
631 #endif
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
632
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
633 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
634 $__interrupt_stack:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
635 .long __interrupt_stack
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
636 $__interrupt_stack_base:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
637 .long __interrupt_stack_base
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
638 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
639 $nCYG_SR2:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
640 .long CYG_SR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
641 $nCYG_SR_BANK1:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
642 .long CYG_SR_BANK1
99
97d9d85b42c0 Merge from eCos master repository on 2000-06-07-14:25:36-BST
jlarmour
parents: 84
diff changeset
643 #ifdef CYGARC_SH_MOD_INTC_V2
82
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
644 $nCYGARC_REG_INTEVT2:
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
645 .long CYGARC_REG_INTEVT2
99
97d9d85b42c0 Merge from eCos master repository on 2000-06-07-14:25:36-BST
jlarmour
parents: 84
diff changeset
646 #endif
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
647 $_hal_interrupt_handlers:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
648 .long _hal_interrupt_handlers
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
649 $_hal_interrupt_data:
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parents:
diff changeset
650 .long _hal_interrupt_data
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
651 $_hal_interrupt_objects:
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parents:
diff changeset
652 .long _hal_interrupt_objects
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
653
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff changeset
654 #ifdef CYGSEM_HAL_COMMON_INTERRUPTS_ALLOW_NESTING
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jlarmour
parents:
diff changeset
655 $cyg_hal_ILVL_table:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
656 .long _cyg_hal_ILVL_table
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
657 $unmasked_SR:
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jlarmour
parents:
diff changeset
658 .long (CYG_SR & ~CYGARC_REG_SR_IMASK)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff changeset
659 #endif // CYGSEM_HAL_COMMON_INTERRUPTS_ALLOW_NESTING
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
660
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
661
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff changeset
662 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff changeset
663 .extern _cyg_scheduler_sched_lock
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff changeset
664 .extern _interrupt_end
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
665 .extern _cyg_interrupt_call_pending_DSRs
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jlarmour
parents:
diff changeset
666
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
667 $_cyg_interrupt_call_pending_DSRs:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
668 .long _cyg_interrupt_call_pending_DSRs
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
669 $cyg_scheduler_sched_lock:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
670 .long cyg_scheduler_sched_lock
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
671 $_interrupt_end:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
672 .long _interrupt_end
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
673 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
674
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff changeset
675 #---------------------------------------------------------------------------
105
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diff changeset
676 # Platform initialization (reset)
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diff changeset
677 __reset_platform:
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diff changeset
678 # Initialize CPU
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parents: 101
diff changeset
679 mov.l $nCYG_SR,r1 ! Put CPU in a well-known state
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parents: 101
diff changeset
680 ldc r1,sr
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parents: 101
diff changeset
681 mov #0,r0
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diff changeset
682 mov #CYGARC_REG_CCR,r1 ! Disable cache
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parents: 101
diff changeset
683 mov.l r0,@r1
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parents: 101
diff changeset
684 mov #CYGARC_REG_MMUCR,r1 ! Disable MMU
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
685 mov.l r0,@r1
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parents: 101
diff changeset
686 mov #CYGARC_REG_BBRA,r1 ! Disable UBC Channel A
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
687 mov.w r0,@r1
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jlarmour
parents: 101
diff changeset
688 mov #CYGARC_REG_BBRB,r1 ! Disable UBC Channel B
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
689 mov.w r0,@r1
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jlarmour
parents: 101
diff changeset
690 mov #CYGARC_REG_BRCR,r1 ! Reset UBC common register
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
691 mov.w r0,@r1
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
692 mov.l $CYGARC_REG_TSTR,r1 ! Disable timers
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
693 mov.b r0,@r1
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
694 mov.l $CYGARC_REG_IPRA,r1 ! Disable interrupt request sources
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
695 mov.w r0,@r1
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
696 mov.l $CYGARC_REG_IPRB,r1
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
697 mov.w r0,@r1
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
698 #ifdef CYGARC_SH_MOD_INTC_V2
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
699 mov.l $CYGARC_REG_IPRC,r1
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
700 mov.w r0,@r1
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
701 mov.l $CYGARC_REG_IPRD,r1
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
702 mov.w r0,@r1
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
703 mov.l $CYGARC_REG_IPRE,r1
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
704 mov.w r0,@r1
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents: 112
diff changeset
705 #ifdef CYGARC_SH_MOD_INTC_V3
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
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parents: 112
diff changeset
706 mov.l $CYGARC_REG_IPRF,r1
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parents: 112
diff changeset
707 mov.w r0,@r1
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
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parents: 112
diff changeset
708 #endif
128
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
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parents: 126
diff changeset
709 mov.w $nCYG_ICR1_INIT,r0
105
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
710 mov.l $CYGARC_REG_ICR1,r1 ! Set interrupt controller to IRQ mode
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
711 mov.w r0,@r1
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jlarmour
parents: 101
diff changeset
712 #endif
128
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
713 mov.w $nCYG_WTCSR,r0 ! Clear watchdog
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
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parents: 126
diff changeset
714 mov #CYGARC_REG_WTCSR,r1
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jlarmour
parents: 126
diff changeset
715 mov.w r0,@r1
105
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jlarmour
parents: 101
diff changeset
716
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jlarmour
parents: 101
diff changeset
717 # Initialize VBR if necessary
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parents: 101
diff changeset
718 #if !defined(CYG_HAL_STARTUP_RAM) || \
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
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parents: 101
diff changeset
719 ( defined(CYG_HAL_STARTUP_RAM) && \
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
720 !defined(CYGSEM_HAL_USE_ROM_MONITOR))
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
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parents: 101
diff changeset
721 mov.l $__reset,r1 ! Set VBR
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jlarmour
parents: 101
diff changeset
722 ldc r1,vbr
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jlarmour
parents: 101
diff changeset
723 #endif
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jlarmour
parents: 101
diff changeset
724
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jlarmour
parents: 101
diff changeset
725
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
726 #ifdef __DEBUG
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jlarmour
parents: 101
diff changeset
727 mov #0,r0
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jlarmour
parents: 101
diff changeset
728 mov #1,r1
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jlarmour
parents: 101
diff changeset
729 mov #2,r2
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
730 mov #3,r3
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
731 mov #4,r4
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jlarmour
parents: 101
diff changeset
732 mov #5,r5
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jlarmour
parents: 101
diff changeset
733 mov #6,r6
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jlarmour
parents: 101
diff changeset
734 mov #7,r7
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jlarmour
parents: 101
diff changeset
735 mov #8,r8
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jlarmour
parents: 101
diff changeset
736 mov #9,r9
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jlarmour
parents: 101
diff changeset
737 mov #10,r10
5a0cc6c243a9 Merge from eCos master repository on 2000-06-30-08:18:49-BST
jlarmour
parents: 101
diff changeset
738 mov #11,r11
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jlarmour
parents: 101
diff changeset
739 mov #12,r12
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jlarmour
parents: 101
diff changeset
740 mov #13,r13
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jlarmour
parents: 101
diff changeset
741 mov #14,r14
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jlarmour
parents: 101
diff changeset
742 #endif
130
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parents: 128
diff changeset
743
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diff changeset
744 bra hal_hw_init
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parents: 128
diff changeset
745 nop
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parents: 128
diff changeset
746
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diff changeset
747 $nCYG_WTCSR:
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parents: 128
diff changeset
748 .word 0xa500 ! clear all CSR bits
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parents: 128
diff changeset
749
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parents: 128
diff changeset
750 .align 2
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parents: 128
diff changeset
751
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diff changeset
752 $nCYG_SR:
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parents: 128
diff changeset
753 .long CYG_SR
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parents: 128
diff changeset
754 $CYGARC_REG_TSTR:
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parents: 128
diff changeset
755 .long CYGARC_REG_TSTR
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parents: 128
diff changeset
756 $CYGARC_REG_IPRA:
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diff changeset
757 .long CYGARC_REG_IPRA
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diff changeset
758 $CYGARC_REG_IPRB:
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diff changeset
759 .long CYGARC_REG_IPRB
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diff changeset
760 #ifdef CYGARC_SH_MOD_INTC_V2
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diff changeset
761 $CYGARC_REG_IPRC:
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diff changeset
762 .long CYGARC_REG_IPRC
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diff changeset
763 $CYGARC_REG_IPRD:
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diff changeset
764 .long CYGARC_REG_IPRD
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diff changeset
765 $CYGARC_REG_IPRE:
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diff changeset
766 .long CYGARC_REG_IPRE
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parents: 128
diff changeset
767 $CYGARC_REG_ICR1:
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diff changeset
768 .long CYGARC_REG_ICR1
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diff changeset
769 #endif
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diff changeset
770 #ifdef CYGARC_SH_MOD_INTC_V2
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diff changeset
771 $CYGARC_REG_IPRF:
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parents: 128
diff changeset
772 .long CYGARC_REG_IPRF
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parents: 128
diff changeset
773 $nCYG_ICR1_INIT:
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parents: 128
diff changeset
774 .word CYGARC_REG_ICR1_INIT
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parents: 128
diff changeset
775 .align 2
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parents: 128
diff changeset
776 #endif
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parents: 128
diff changeset
777 $__reset:
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jlarmour
parents: 128
diff changeset
778 .long __reset
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parents: 128
diff changeset
779
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parents: 128
diff changeset
780 hal_hw_init:
105
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parents: 101
diff changeset
781
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diff changeset
782 # Call platform specific hardware initialization
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parents: 101
diff changeset
783 # This may include memory controller initialization. It is not
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parents: 101
diff changeset
784 # safe to access RAM until after this point.
132
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diff changeset
785 # Note that caches must not be enabled until after this point,
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diff changeset
786 # since we may be fiddling the FRQCR which cannot be safely done
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parents: 130
diff changeset
787 # by code in burst/cachable memory (errata SH7-184e).
105
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parents: 101
diff changeset
788 hal_hardware_init
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parents: 101
diff changeset
789
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diff changeset
790 # Now copy necessary bits to RAM and jump to the VMA base
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diff changeset
791
130
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diff changeset
792 #if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_SUBSETROMRAM)
105
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parents: 101
diff changeset
793
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jlarmour
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diff changeset
794 # Copy data from ROM to ram
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parents: 101
diff changeset
795 mov.l $__rom_data_start,r3 ! r3 = rom start
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parents: 101
diff changeset
796 mov.l $__ram_data_start,r4 ! r4 = ram start
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parents: 101
diff changeset
797 mov.l $__ram_data_end,r5 ! r5 = ram end
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parents: 101
diff changeset
798
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jlarmour
parents: 101
diff changeset
799 cmp/eq r4,r5 ! skip if no data
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jlarmour
parents: 101
diff changeset
800 bt 2f
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jlarmour
parents: 101
diff changeset
801 1: mov.l @r3+,r0 ! get word from ROM
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parents: 101
diff changeset
802 mov.l r0,@r4 ! store in RAM
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parents: 101
diff changeset
803 add #4,r4
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jlarmour
parents: 101
diff changeset
804 cmp/eq r4,r5 ! compare
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jlarmour
parents: 101
diff changeset
805 bf 1b ! loop if not yet done
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parents: 101
diff changeset
806 2:
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parents: 101
diff changeset
807
130
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jlarmour
parents: 128
diff changeset
808
105
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diff changeset
809 # Jump to the proper VMA base of the code.
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parents: 101
diff changeset
810 mov.l $_complete_setup,r0
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parents: 101
diff changeset
811 jmp @r0
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parents: 101
diff changeset
812 nop
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diff changeset
813 .align 2
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diff changeset
814
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diff changeset
815 .extern __rom_data_start
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diff changeset
816 .extern __ram_data_start
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diff changeset
817 .extern __ram_data_end
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parents: 101
diff changeset
818 $__rom_data_start:
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parents: 101
diff changeset
819 .long __rom_data_start
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parents: 101
diff changeset
820 $__ram_data_start:
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parents: 101
diff changeset
821 .long __ram_data_start
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diff changeset
822 $__ram_data_end:
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diff changeset
823 .long __ram_data_end
130
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parents: 128
diff changeset
824
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parents: 128
diff changeset
825
105
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jlarmour
parents: 101
diff changeset
826 $_complete_setup:
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jlarmour
parents: 101
diff changeset
827 .long _complete_setup
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parents: 101
diff changeset
828
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diff changeset
829 #elif defined(CYG_HAL_STARTUP_ROMRAM)
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parents: 101
diff changeset
830
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diff changeset
831 # Copy everything to the proper VMA base and jump to it.
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parents: 101
diff changeset
832 mov.l $_vectors_lma,r0
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diff changeset
833 mov.l $_vectors_vma,r1
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diff changeset
834 mov.l $_end,r2
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diff changeset
835 1: mov.l @r0+,r3 ! get word from ROM
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diff changeset
836 mov.l r3,@r1 ! store in RAM
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parents: 101
diff changeset
837 add #4,r1
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diff changeset
838 cmp/eq r1,r2 ! compare
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diff changeset
839 bf 1b ! loop if not yet done
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diff changeset
840 mov.l $_complete_setup,r0
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diff changeset
841 jmp @r0
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diff changeset
842 nop
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diff changeset
843 .align 2
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diff changeset
844
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diff changeset
845 .extern __vector_code_lma
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diff changeset
846
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diff changeset
847 $_vectors_lma:
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diff changeset
848 .long __vector_code_lma
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diff changeset
849 $_vectors_vma:
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diff changeset
850 .long __reset
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diff changeset
851 $_end:
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diff changeset
852 .long _end
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diff changeset
853 $_complete_setup:
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diff changeset
854 .long _complete_setup
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diff changeset
855
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diff changeset
856 #else
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diff changeset
857
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diff changeset
858 # Jump to remaining setup code. Relative branch is OK since VMA=LMA.
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diff changeset
859 bra _complete_setup
128
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diff changeset
860 nop
105
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diff changeset
861
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diff changeset
862 #endif
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diff changeset
863
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diff changeset
864 #-----------------------------------------------------------------------------
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diff changeset
865 # Complete target initialization and setup.
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diff changeset
866 # After this point we can use absolute addressing modes and access all the
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diff changeset
867 # memory in the system.
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diff changeset
868
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diff changeset
869 _complete_setup:
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diff changeset
870
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diff changeset
871 # Set up monitor related stuff (vectors primarily)
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diff changeset
872 hal_mon_init
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diff changeset
873
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diff changeset
874 # set up stack
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diff changeset
875 mov.l $__startup_stack,r15
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diff changeset
876
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diff changeset
877 # clear BSS
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diff changeset
878 mov.l $__bss_start,r3 ! r3 = start
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parents: 101
diff changeset
879 mov.l $__bss_end,r4 ! r4 = end
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parents: 101
diff changeset
880 mov #0,r0 ! r0 = 0
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diff changeset
881 1: cmp/eq r3,r4 ! skip if no bss
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jlarmour
parents: 101
diff changeset
882 bt 2f
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jlarmour
parents: 101
diff changeset
883 mov.l r0,@r3 ! store zero
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jlarmour
parents: 101
diff changeset
884 add #4,r3
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jlarmour
parents: 101
diff changeset
885 bra 1b ! loop
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jlarmour
parents: 101
diff changeset
886 nop
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jlarmour
parents: 101
diff changeset
887 2:
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jlarmour
parents: 101
diff changeset
888
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diff changeset
889 # It is now safe to call C functions which may rely on initialized
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parents: 101
diff changeset
890 # data.
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parents: 101
diff changeset
891
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diff changeset
892 # # Initialize MMU.
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diff changeset
893 # .extern hal_MMU_init
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diff changeset
894 # jsr hal_MMU_init
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diff changeset
895 # nop
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parents: 101
diff changeset
896
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diff changeset
897 # Enable caches
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parents: 101
diff changeset
898 mov.l $_cyg_hal_enable_caches,r1
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jlarmour
parents: 101
diff changeset
899 jsr @r1
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jlarmour
parents: 101
diff changeset
900 nop
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jlarmour
parents: 101
diff changeset
901
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diff changeset
902 # Variant HALs may need to do something special before we continue
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jlarmour
parents: 101
diff changeset
903 mov.l $_hal_variant_init,r1
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jlarmour
parents: 101
diff changeset
904 jsr @r1
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jlarmour
parents: 101
diff changeset
905 nop
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jlarmour
parents: 101
diff changeset
906
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diff changeset
907 # Platform initialization
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jlarmour
parents: 101
diff changeset
908 mov.l $_hal_platform_init,r1
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jlarmour
parents: 101
diff changeset
909 jsr @r1
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jlarmour
parents: 101
diff changeset
910 nop
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parents: 101
diff changeset
911
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diff changeset
912 # call c++ constructors
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parents: 101
diff changeset
913 mov.l $_cyg_hal_invoke_constructors,r1
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jlarmour
parents: 101
diff changeset
914 jsr @r1
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jlarmour
parents: 101
diff changeset
915 nop
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jlarmour
parents: 101
diff changeset
916
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parents: 101
diff changeset
917 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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parents: 101
diff changeset
918 mov.l $_initialize_stub,r1
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parents: 101
diff changeset
919 jsr @r1
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jlarmour
parents: 101
diff changeset
920 nop
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diff changeset
921 #endif
107
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parents: 105
diff changeset
922 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT) \
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parents: 105
diff changeset
923 || defined(CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT)
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jlarmour
parents: 105
diff changeset
924 mov.l $_hal_ctrlc_isr_init,r1
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jlarmour
parents: 105
diff changeset
925 jsr @r1
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jlarmour
parents: 105
diff changeset
926 nop
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jlarmour
parents: 105
diff changeset
927 #endif
105
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parents: 101
diff changeset
928
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jlarmour
parents: 101
diff changeset
929 mov.l $_cyg_start,r1
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jlarmour
parents: 101
diff changeset
930 jsr @r1
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jlarmour
parents: 101
diff changeset
931 nop
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jlarmour
parents: 101
diff changeset
932 9:
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jlarmour
parents: 101
diff changeset
933 bra 9b ! if we return, loop
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jlarmour
parents: 101
diff changeset
934 nop
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jlarmour
parents: 101
diff changeset
935
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jlarmour
parents: 101
diff changeset
936 .align 2
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jlarmour
parents: 101
diff changeset
937 $__startup_stack:
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jlarmour
parents: 101
diff changeset
938 .long __startup_stack
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jlarmour
parents: 101
diff changeset
939
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jlarmour
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diff changeset
940 .extern __bss_start
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parents: 101
diff changeset
941 .extern __bss_end
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diff changeset
942 .extern _cyg_hal_invoke_constructors
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diff changeset
943 .extern _hal_variant_init
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diff changeset
944 .extern _hal_platform_init
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parents: 101
diff changeset
945 .extern _cyg_start
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parents: 101
diff changeset
946
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parents: 101
diff changeset
947 $__bss_start:
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jlarmour
parents: 101
diff changeset
948 .long __bss_start
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jlarmour
parents: 101
diff changeset
949 $__bss_end:
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parents: 101
diff changeset
950 .long __bss_end
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parents: 101
diff changeset
951 $_cyg_hal_invoke_constructors:
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parents: 101
diff changeset
952 .long _cyg_hal_invoke_constructors
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parents: 101
diff changeset
953 $_cyg_hal_enable_caches:
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parents: 101
diff changeset
954 .long _cyg_hal_enable_caches
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jlarmour
parents: 101
diff changeset
955 $_hal_variant_init:
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parents: 101
diff changeset
956 .long _hal_variant_init
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parents: 101
diff changeset
957 $_hal_platform_init:
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parents: 101
diff changeset
958 .long _hal_platform_init
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parents: 101
diff changeset
959 $_cyg_start:
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parents: 101
diff changeset
960 .long _cyg_start
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parents: 101
diff changeset
961
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parents: 101
diff changeset
962 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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parents: 101
diff changeset
963 .extern _initialize_stub
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diff changeset
964 $_initialize_stub:
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diff changeset
965 .long _initialize_stub
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parents: 101
diff changeset
966 #endif
107
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parents: 105
diff changeset
967 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT) \
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parents: 105
diff changeset
968 || defined(CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT)
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parents: 105
diff changeset
969 .extern _hal_ctrlc_isr_init
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parents: 105
diff changeset
970 $_hal_ctrlc_isr_init:
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parents: 105
diff changeset
971 .long _hal_ctrlc_isr_init
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parents: 105
diff changeset
972 #endif
105
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parents: 101
diff changeset
973
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diff changeset
974 #---------------------------------------------------------------------------
84
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diff changeset
975 # Cache operations
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diff changeset
976 # These need to be written in assembly to ensure they do not rely on data
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parents: 82
diff changeset
977 # in cachable space (i.e., code must use registers exclusively, not the stack).
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parents: 82
diff changeset
978
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diff changeset
979 # This macro must be used at the top of each cache function. It ensures
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parents: 82
diff changeset
980 # that the code gets executed from a shadow region where caching is disabled
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parents: 82
diff changeset
981 # (0xA0000000).
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parents: 82
diff changeset
982 .macro GOTO_NONCACHED_SHADOW
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parents: 82
diff changeset
983 mova 10f,r0
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parents: 82
diff changeset
984 mov.l $MASK,r1
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jlarmour
parents: 82
diff changeset
985 and r1,r0
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jlarmour
parents: 82
diff changeset
986 mov.l $BASE,r1
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parents: 82
diff changeset
987 or r1,r0
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jlarmour
parents: 82
diff changeset
988 jmp @r0
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jlarmour
parents: 82
diff changeset
989 nop
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jlarmour
parents: 82
diff changeset
990 .align 2
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jlarmour
parents: 82
diff changeset
991 10:
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jlarmour
parents: 82
diff changeset
992 .endm
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jlarmour
parents: 82
diff changeset
993
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diff changeset
994 .globl _cyg_hal_cache_enable
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parents: 82
diff changeset
995 _cyg_hal_cache_enable:
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jlarmour
parents: 82
diff changeset
996 GOTO_NONCACHED_SHADOW
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jlarmour
parents: 82
diff changeset
997 mov #CYGARC_REG_CCR,r1
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jlarmour
parents: 82
diff changeset
998 mov.l @r1,r0
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jlarmour
parents: 82
diff changeset
999 or #CYGARC_REG_CCR_CE,r0
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jlarmour
parents: 82
diff changeset
1000 mov.l r0,@r1
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jlarmour
parents: 82
diff changeset
1001 nop
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jlarmour
parents: 82
diff changeset
1002 rts
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jlarmour
parents: 82
diff changeset
1003 nop
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jlarmour
parents: 82
diff changeset
1004
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jlarmour
parents: 82
diff changeset
1005 .globl _cyg_hal_cache_disable
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parents: 82
diff changeset
1006 _cyg_hal_cache_disable:
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jlarmour
parents: 82
diff changeset
1007 GOTO_NONCACHED_SHADOW
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jlarmour
parents: 82
diff changeset
1008 mov #CYGARC_REG_CCR,r1
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jlarmour
parents: 82
diff changeset
1009 mov.l @r1,r0
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jlarmour
parents: 82
diff changeset
1010 mov #CYGARC_REG_CCR_CE,r2
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jlarmour
parents: 82
diff changeset
1011 not r2,r2
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jlarmour
parents: 82
diff changeset
1012 and r2,r0
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jlarmour
parents: 82
diff changeset
1013 mov.l r0,@r1
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jlarmour
parents: 82
diff changeset
1014 nop
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jlarmour
parents: 82
diff changeset
1015 rts
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jlarmour
parents: 82
diff changeset
1016 nop
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jlarmour
parents: 82
diff changeset
1017
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jlarmour
parents: 82
diff changeset
1018 .globl _cyg_hal_cache_invalidate_all
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diff changeset
1019 _cyg_hal_cache_invalidate_all:
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jlarmour
parents: 82
diff changeset
1020 GOTO_NONCACHED_SHADOW
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jlarmour
parents: 82
diff changeset
1021 mov #CYGARC_REG_CCR,r1
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jlarmour
parents: 82
diff changeset
1022 mov.l @r1,r0
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jlarmour
parents: 82
diff changeset
1023 or #CYGARC_REG_CCR_CF,r0
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jlarmour
parents: 82
diff changeset
1024 mov.l r0,@r1
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jlarmour
parents: 82
diff changeset
1025 nop ! Nothing in the docs suggest we need
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jlarmour
parents: 82
diff changeset
1026 nop ! nops here, but without them, the
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jlarmour
parents: 82
diff changeset
1027 nop ! CPU crashes.
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jlarmour
parents: 82
diff changeset
1028 rts
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jlarmour
parents: 82
diff changeset
1029 nop
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jlarmour
parents: 82
diff changeset
1030
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jlarmour
parents: 82
diff changeset
1031 .globl _cyg_hal_cache_sync
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parents: 82
diff changeset
1032 _cyg_hal_cache_sync:
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jlarmour
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diff changeset
1033 GOTO_NONCACHED_SHADOW
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jlarmour
parents: 82
diff changeset
1034 mov.l $CYGARC_REG_CACHE_ADDRESS_FLUSH,r0
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parents: 82
diff changeset
1035 mov.l $CYGARC_REG_CACHE_ADDRESS_BASE,r1
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jlarmour
parents: 82
diff changeset
1036 mov.l $CYGARC_REG_CACHE_ADDRESS_TOP,r2
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jlarmour
parents: 82
diff changeset
1037 mov.l $CYGARC_REG_CACHE_ADDRESS_STEP,r3
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jlarmour
parents: 82
diff changeset
1038 1: cmp/hi r1,r2
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jlarmour
parents: 82
diff changeset
1039 bf 2f
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jlarmour
parents: 82
diff changeset
1040 mov.l r0,@r1
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jlarmour
parents: 82
diff changeset
1041 bra 1b
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jlarmour
parents: 82
diff changeset
1042 add r3,r1 ! delay slot!
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jlarmour
parents: 82
diff changeset
1043 2: nop
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jlarmour
parents: 82
diff changeset
1044 rts
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jlarmour
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diff changeset
1045 nop
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jlarmour
parents: 82
diff changeset
1046
128
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diff changeset
1047 ! r4 = base
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parents: 126
diff changeset
1048 ! r5 = size
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parents: 126
diff changeset
1049 .globl _cyg_hal_cache_sync_region
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diff changeset
1050 _cyg_hal_cache_sync_region:
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diff changeset
1051 GOTO_NONCACHED_SHADOW
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parents: 126
diff changeset
1052 mov.l 10f,r0
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parents: 126
diff changeset
1053 and r4,r0 ! array index
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jlarmour
parents: 126
diff changeset
1054 mov.l 11f,r1
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parents: 126
diff changeset
1055 add r0,r1 ! base (aligned, A set)
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parents: 126
diff changeset
1056
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jlarmour
parents: 126
diff changeset
1057 ! make sure top is aligned to start of _next_ cache line
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parents: 126
diff changeset
1058 mov r1,r0
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jlarmour
parents: 126
diff changeset
1059 add r5,r0 ! top (non-aligned)
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parents: 126
diff changeset
1060 add #2*HAL_UCACHE_LINE_SIZE-1,r0
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parents: 126
diff changeset
1061 mov.l 13f,r2
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jlarmour
parents: 126
diff changeset
1062 and r0,r2
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jlarmour
parents: 126
diff changeset
1063
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parents: 126
diff changeset
1064 mov.l $CYGARC_REG_CACHE_ADDRESS_STEP,r3
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1065 mov.l 12f,r5
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1066 1: cmp/hi r1,r2
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1067 bf 3f
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1068 mov r4,r0 ! create address tag
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1069 and r5,r0
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1070 mov.l r0,@r1 ! store tag in array, causing (sync+)invalidate
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1071 ! if the tag matches any of the lines
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1072 add r3,r4 ! inc address tag
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1073 bra 1b
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1074 add r3,r1 ! inc array index, delay slot!
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1075 3: nop
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1076 rts
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1077 nop
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1078
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1079 .align 2
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1080 10: .long ((HAL_UCACHE_SIZE/HAL_UCACHE_WAYS)-1)&~0xf ! mask
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1081 11: .long CYGARC_REG_CACHE_ADDRESS_BASE|CYGARC_REG_CACHE_ADDRESS_ADDRESS
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1082 12: .long CYGARC_REG_CACHE_ADDRESS_TAG_Mask
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1083 13: .long ~(HAL_UCACHE_LINE_SIZE-1)
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1084
84
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1085 .globl _cyg_hal_cache_write_mode
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1086 _cyg_hal_cache_write_mode:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1087 GOTO_NONCACHED_SHADOW
128
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1088 # Mode argument in r4.
84
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1089 # Read current state and mask out the two caching mode bits
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1090 mov #CYGARC_REG_CCR,r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1091 mov.l @r1,r3
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1092 mov #CYGARC_REG_CCR_CB|CYGARC_REG_CCR_WT,r2
128
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1093 and r2,r4
84
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1094 not r2,r2
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1095 and r2,r3
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1096 # Or in the new settings and restore to CCR
128
0c2b7be0d798 Merge from eCos master repository on 2000-10-12-08:46:24-BST
jlarmour
parents: 126
diff changeset
1097 or r4,r3
84
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1098 mov.l r3,@r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1099 nop
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1100 rts
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1101 nop
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1102
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1103 .align 2
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1104 $CYGARC_REG_CACHE_ADDRESS_FLUSH:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1105 .long CYGARC_REG_CACHE_ADDRESS_FLUSH
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1106 $CYGARC_REG_CACHE_ADDRESS_BASE:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1107 .long CYGARC_REG_CACHE_ADDRESS_BASE
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1108 $CYGARC_REG_CACHE_ADDRESS_TOP:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1109 .long CYGARC_REG_CACHE_ADDRESS_TOP
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1110 $CYGARC_REG_CACHE_ADDRESS_STEP:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1111 .long CYGARC_REG_CACHE_ADDRESS_STEP
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1112
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1113
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1114 $MASK:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1115 .long 0x1fffffff ! mask off top 3 bits
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1116 $BASE:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1117 .long 0xa0000000 ! base of non-cachable memory
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1118
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1119 #---------------------------------------------------------------------------
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1120 # Interrupt vector tables.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1121 # These tables contain the isr, data and object pointers used to deliver
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1122 # interrupts to user code.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1123
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1124 .data
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1125
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1126 .extern _hal_default_isr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1127
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1128 .globl _hal_interrupt_handlers
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1129 _hal_interrupt_handlers:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1130 .rept CYG_ISR_TABLE_SIZE
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1131 .long _hal_default_isr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1132 .endr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1133
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1134 .globl _hal_interrupt_data
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1135 _hal_interrupt_data:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1136 .rept CYG_ISR_TABLE_SIZE
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1137 .long 0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1138 .endr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1139
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1140 .globl _hal_interrupt_objects
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1141 _hal_interrupt_objects:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1142 .rept CYG_ISR_TABLE_SIZE
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1143 .long 0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1144 .endr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1145
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1146 #ifdef CYGSEM_HAL_COMMON_INTERRUPTS_ALLOW_NESTING
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1147 .globl _cyg_hal_ILVL_table
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1148 _cyg_hal_ILVL_table:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1149 # The first entries in the table have static priorities.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1150
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1151 .byte 0xf // NMI
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1152 .byte 0xf // Reserved
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1153 .byte 0xf // LVL0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1154 .byte 0xe // LVL1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1155 .byte 0xd // LVL2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1156 .byte 0xc // LVL3
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1157 .byte 0xb // LVL4
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1158 .byte 0xa // LVL5
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1159 .byte 0x9 // LVL6
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1160 .byte 0x8 // LVL7
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1161 .byte 0x7 // LVL8
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1162 .byte 0x6 // LVL9
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1163 .byte 0x5 // LVL10
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1164 .byte 0x4 // LVL11
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1165 .byte 0x3 // LVL12
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1166 .byte 0x2 // LVL13
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1167 .byte 0x1 // LVL14
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1168 .byte 0xf // Reserved
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1169
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1170 # The rest of the table consists of programmable levels, maintained
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1171 # by the HAL_INTERRUPT_SET_LEVEL macro.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1172 .rept (CYGNUM_HAL_ISR_MAX-CYGNUM_HAL_INTERRUPT_RESERVED_3E0)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1173 .byte 0xf
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1174 .endr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1175 #endif // CYGSEM_HAL_COMMON_INTERRUPTS_ALLOW_NESTING
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1176
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1177 #---------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1178 ## Temporary interrupt stack
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1179
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1180 .section ".bss"
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1181
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1182 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1183 .balign 16
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1184 .global _cyg_interrupt_stack_base
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1185 _cyg_interrupt_stack_base:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1186 __interrupt_stack_base:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1187 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1188 .byte 0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1189 .endr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1190 .balign 16
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1191 .global _cyg_interrupt_stack
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1192 _cyg_interrupt_stack:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1193 __interrupt_stack:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1194
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1195 .long 0,0,0,0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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1196 #endif // CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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1197
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1198
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1199 #ifdef CYGSEM_HAL_ROM_MONITOR
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1200 // Enough space for stub to handle downloads. If using thread capabilities
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1201 // it will be using the RAM application's stack.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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1202 # define STARTUP_STACK_SIZE 1024
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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1203 #else
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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1204 # ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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1205 // Enough space to run constructors.
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1206 // FIXME: 512 is enough for all tests. doc/examples/twothreads
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1207 // calls printf on this stack though, and so requires more space.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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1208 # define STARTUP_STACK_SIZE 1024
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1209 # else
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1210 # define STARTUP_STACK_SIZE CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
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1211 # endif
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1212 #endif
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1213
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1214 .balign 16
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1215 __startup_stack_base:
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1216 .rept STARTUP_STACK_SIZE
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1217 .byte 0
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1218 .endr
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1219 .balign 16
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1220 __startup_stack:
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1221 .long 0,0,0,0
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1222
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1223 #---------------------------------------------------------------------------
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1224 # end of vectors.S