Mercurial > flash_v2

annotate packages/hal/sh/arch/current/src/vectors.S @ 84:489eb5632bc3 ecos-sw-2000-04-28

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Merge from eCos master repository on 2000-04-28-18:44:39-BST
author jlarmour
date Fri, 28 Apr 2000 18:18:36 +0000
parents 6736c52df507
children 97d9d85b42c0
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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
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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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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
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100 .globl __reset;
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101 __reset:
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102
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103 # Initialize CPU
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104 mov.l $nCYG_SR,r1 ! Put CPU in a well-known state
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105 ldc r1,sr
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106 mov #0,r0
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107 mov #CYGARC_REG_CCR,r1 ! Disable cache
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108 mov.l r0,@r1
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109 mov #CYGARC_REG_MMUCR,r1 ! Disable MMU
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110 mov.l r0,@r1
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111 mov #CYGARC_REG_BBRA,r1 ! Disable UBC Channel A
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112 mov.w r0,@r1
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113 mov #CYGARC_REG_BBRB,r1 ! Disable UBC Channel B
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114 mov.w r0,@r1
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115 mov #CYGARC_REG_BRCR,r1 ! Reset UBC common register
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116 mov.w r0,@r1
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117 mov.l $CYGARC_REG_TSTR,r1 ! Disable timers
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118 mov.b r0,@r1
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119 mov.l $CYGARC_REG_IPRA,r1 ! Disable interrupt request sources
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120 mov.w r0,@r1
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121 mov.l $CYGARC_REG_IPRB,r1
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122 mov.w r0,@r1
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123
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124 # Initialize VBR if necessary
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125 #if !defined(CYG_HAL_STARTUP_RAM) || \
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126 ( defined(CYG_HAL_STARTUP_RAM) && \
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127 !defined(CYGSEM_HAL_USE_ROM_MONITOR))
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128 mov.l $__reset,r1 ! Set VBR
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129 ldc r1,vbr
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130 #endif
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131
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132
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133 #ifdef __DEBUG
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134 mov #0,r0
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135 mov #1,r1
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136 mov #2,r2
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137 mov #3,r3
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138 mov #4,r4
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139 mov #5,r5
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140 mov #6,r6
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141 mov #7,r7
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142 mov #8,r8
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143 mov #9,r9
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144 mov #10,r10
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145 mov #11,r11
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146 mov #12,r12
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147 mov #13,r13
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148 mov #14,r14
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149 #endif
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150
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151 # Call platform specific hardware initialization
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152 # This may include memory controller initialization. It is not
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153 # safe to access RAM until after this point.
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154 hal_hardware_init
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155
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156 # Now copy necessary bits to RAM and jump to the VMA base
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157
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158 #ifdef CYG_HAL_STARTUP_ROM
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159
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160 # Copy data from ROM to ram
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161 mov.l $__rom_data_start,r3 ! r3 = rom start
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162 mov.l $__ram_data_start,r4 ! r4 = ram start
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163 mov.l $__ram_data_end,r5 ! r5 = ram end
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164
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165 cmp/eq r4,r5 ! skip if no data
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166 bt 2f
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167 1: mov.l @r3+,r0 ! get word from ROM
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168 mov.l r0,@r4 ! store in RAM
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169 add #4,r4
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170 cmp/eq r4,r5 ! compare
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171 bf 1b ! loop if not yet done
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172 2:
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173
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174 # Jump to the proper VMA base of the code.
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175 mov.l $_complete_setup,r0
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176 jmp @r0
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177 nop
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178 .align 2
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179
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180 .extern __rom_data_start
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181 .extern __ram_data_start
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182 .extern __ram_data_end
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183
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184 $__rom_data_start:
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185 .long __rom_data_start
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186 $__ram_data_start:
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187 .long __ram_data_start
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188 $__ram_data_end:
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189 .long __ram_data_end
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190 $_complete_setup:
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191 .long _complete_setup
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192
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193 #elif defined(CYG_HAL_STARTUP_ROMRAM)
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194
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195 # Copy everything to the proper VMA base and jump to it.
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196 mov.l $_vectors_lma,r0
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197 mov.l $_vectors_vma,r1
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198 mov.l $_end,r2
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199 1: mov.l @r0+,r3 ! get word from ROM
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200 mov.l r3,@r1 ! store in RAM
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201 add #4,r1
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202 cmp/eq r1,r2 ! compare
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203 bf 1b ! loop if not yet done
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204 mov.l $_complete_setup,r0
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205 jmp @r0
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206 nop
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207 .align 2
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208
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209 .extern __vector_code_lma
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210
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211 $_vectors_lma:
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212 .long __vector_code_lma
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213 $_vectors_vma:
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214 .long __reset
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215 $_end:
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216 .long _end
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217 $_complete_setup:
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218 .long _complete_setup
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219
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220 #else
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221
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222 # Jump to remaining setup code. Relative branch is OK since VMA=LMA.
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223 bra _complete_setup
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224
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225 #endif
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226
82
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227 .align 2
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228
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229 $nCYG_SR:
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230 .long CYG_SR
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231 $CYGARC_REG_TSTR:
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232 .long CYGARC_REG_TSTR
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233 $CYGARC_REG_IPRA:
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234 .long CYGARC_REG_IPRA
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235 $CYGARC_REG_IPRB:
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236 .long CYGARC_REG_IPRB
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237 $__reset:
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238 .long __reset
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239
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240 #---------------------------------------------------------------------------
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241 # Exception entry
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242
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243 .org 0x100
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244 __exception:
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245
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246 #if defined(CYGPKG_KERNEL_INSTRUMENT) && defined(CYGDBG_KERNEL_INSTRUMENT_INTR)
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247 mov #1,r7
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248 #endif
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249
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250 mov #CYGARC_REG_EXCEVT,r1
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251 mov.l @r1,r1
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252 shlr2 r1
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253 shlr r1 ! divide cause by 0x08
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254 mov.l $_hal_vsr_table,r0
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255 mov.l @(r0,r1),r1
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256 jmp @r1
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257 nop
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258
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259 .align 2
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260 $_hal_vsr_table:
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261 .long _hal_vsr_table
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262
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263 #-----------------------------------------------------------------------------
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264 # Complete target initialization and setup.
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265 # [Placed here to make use of gap between exception and interrupt entry points]
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266 # After this point we can use absolute addressing modes and access all the
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267 # memory in the system.
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268
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269 _complete_setup:
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270
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271 # Set up monitor related stuff (vectors primarily)
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272 hal_mon_init
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273
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274 # set up stack
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275 mov.l $__startup_stack,r15
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276
76
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277 # clear BSS
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278 mov.l $__bss_start,r3 ! r3 = start
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279 mov.l $__bss_end,r4 ! r4 = end
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280 mov #0,r0 ! r0 = 0
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281 1: cmp/eq r3,r4 ! skip if no bss
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282 bt 2f
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283 mov.l r0,@r3 ! store zero
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284 add #4,r3
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285 bra 1b ! loop
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286 nop
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287 2:
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288
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289 # It is now safe to call C functions which may rely on initialized
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290 # data.
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291
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292 # # Initialize MMU.
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293 # .extern hal_MMU_init
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294 # jsr hal_MMU_init
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295 # nop
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296
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297 # Enable caches
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298 mov.l $_cyg_hal_enable_caches,r1
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299 jsr @r1
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300 nop
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301
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302 # call c++ constructors
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303 mov.l $_cyg_hal_invoke_constructors,r1
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304 jsr @r1
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305 nop
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306
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307 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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308 mov.l $_initialize_stub,r1
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309 jsr @r1
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310 nop
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311 #endif
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312
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313 mov.l $_cyg_start,r1
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314 jsr @r1
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315 nop
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316 9:
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317 bra 9b ! if we return, loop
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318 nop
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319
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320 .align 2
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321 $__startup_stack:
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322 .long __startup_stack
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323
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324 .extern __bss_start
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325 .extern __bss_end
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326 .extern _cyg_hal_invoke_constructors
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327 .extern _cyg_start
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328
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329 $__bss_start:
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330 .long __bss_start
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331 $__bss_end:
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332 .long __bss_end
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333 $_cyg_hal_invoke_constructors:
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334 .long _cyg_hal_invoke_constructors
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335 $_cyg_hal_enable_caches:
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336 .long _cyg_hal_enable_caches
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337 $_cyg_start:
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338 .long _cyg_start
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339
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340 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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341 .extern _initialize_stub
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342 $_initialize_stub:
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343 .long _initialize_stub
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344 #endif
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345
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346
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347 #---------------------------------------------------------------------------
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348 # This code handles the common part of all exception handlers.
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349 # It saves the machine state onto the stack and then calls
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350 # a "C" routine to do the rest of the work. This work may result
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351 # in thread switches, and changes to the saved state. When we return
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352 # here the saved state is restored and execution is continued.
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353
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354 .globl _cyg_hal_default_exception_vsr
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355 _cyg_hal_default_exception_vsr:
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356
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357 # We come here with all register containing their
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358 # pre-exception values except:
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359 # r0_b-r7_b = saved r0-r7
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360 # r7 = vector #
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361 # spc = saved pc
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362 # ssr = saved sr
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diff changeset
363
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364 # Save away some registers
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365 mov r15,r1 ! entry sp
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diff changeset
366
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367 #ifdef __DEBUG
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368 mov.l $exc_state_marker,r0
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369 mov.l r0,@-r15
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370 mov #CYGARC_REG_EXCEVT,r0
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371 mov.l @r0,r0
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372 mov.l r0,@-r15
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373 #endif
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374
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375 #ifdef CYGDBG_HAL_COMMON_INTERRUPTS_SAVE_MINIMUM_CONTEXT
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376 add #-12,r15 ! Space for cause, gbr, and vbr
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377 #else
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378 add #-4,r15 ! Space for cause
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379
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380 stc gbr,r0 ! GBR
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381 mov.l r0,@-r15
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382 stc vbr,r0 ! VBR
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383 mov.l r0,@-r15
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384 #endif
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385
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386 stc spc,r0
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387 mov.l r0,@-r15 ! PC
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388 stc ssr,r0
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389 mov.l r0,@-r15 ! SR
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diff changeset
390
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391 sts.l pr,@-r15 ! PR
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392 sts.l mach,@-r15 ! mach
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393 sts.l macl,@-r15 ! macl
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diff changeset
394
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395 mov.l r1,@-r15 ! entry sp
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396 mov.l r14,@-r15 ! r14-r0
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397 mov.l r13,@-r15
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398 mov.l r12,@-r15
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399 mov.l r11,@-r15
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400 mov.l r10,@-r15
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401 mov.l r9,@-r15
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402 mov.l r8,@-r15
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403 stc.l r7_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
404 stc.l r6_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
405 stc.l r5_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
406 stc.l r4_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
407 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
408 stc.l r2_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
409 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
410 stc.l r0_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
411
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
412 # 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
413 mov.l $nCYG_SR1,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
414 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
415 # ------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
416 # 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
417
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
418 #ifdef __DEBUG
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
419 # 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
420 .globl _cyg_hal_default_exception_vsr_bp_safe
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
421 _cyg_hal_default_exception_vsr_bp_safe:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
422 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
423 mov #CYGARC_REG_EXCEVT,r0
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 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
428 mov.l r4,@(r0,r15) ! 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
429
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
430 # 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
431 # 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
432
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
433 mov r15,r4 ! R4 = register dump
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
434
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
435 mov.l $restore_state,r0 ! get return link
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
436 lds r0,pr ! to procedure register
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
437
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
438 mov.l $_cyg_hal_exception_handler,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
439 jmp @r0 ! call C code, r4 = registers
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
440 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
441
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
442 .align 2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
443 $restore_state:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
444 .long restore_state
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
445 $nCYG_SR1:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
446 .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
447
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
448 #ifdef __DEBUG
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
449 $exc_state_marker:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
450 .long 0x77777770
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
451 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
452
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
453 .extern _cyg_hal_exception_handler
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
454
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
455 $_cyg_hal_exception_handler:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
456 .long _cyg_hal_exception_handler
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
457
82
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
458 #---------------------------------------------------------------------------
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
459 # TLB miss entry
76
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 .org 0x400
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
462 __tlb_miss:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
463 #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
464 mov #2,r7
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
465 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
466
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
467 mov #CYGARC_REG_EXCEVT,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
468 mov.l @r1,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
469 shlr2 r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
470 shlr r1 ! divide cause by 0x08
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
471 mov.l $_hal_vsr_table2,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
472 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
473 jmp @r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
474 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
475
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
476 .align 2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
477 $_hal_vsr_table2:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
478 .long _hal_vsr_table
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
479
82
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
480 #---------------------------------------------------------------------------
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
481 # Interrupt entry
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
482
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
483 .org 0x600
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
484 __interrupt:
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 #ifdef CYGHWR_HAL_SH_HANDLE_SPURIOUS_INTERRUPTS
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
487 # 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
jlarmour
parents:
diff changeset
488 # 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
jlarmour
parents:
diff changeset
489 mov #CYGARC_REG_INTEVT,r0
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 @r0,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
491 cmp/eq #0,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
492 bf 1f
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
493 rte
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 1:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
496 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
497
84
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
498
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
499 #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
500 mov #3,r7
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
501 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
502
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
503 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
jlarmour
parents:
diff changeset
504 mov.l @r1,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
505 jmp @r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
506 nop
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 .align 2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
509 $_hal_vsr_table_int:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
510 .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
jlarmour
parents:
diff changeset
511
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 #---------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
514 # Common interrupt handling code.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
515
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
516 .globl _cyg_hal_default_interrupt_vsr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
517 _cyg_hal_default_interrupt_vsr:
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 # 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
jlarmour
parents:
diff changeset
520 # pre-exception values except:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
521 # 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
jlarmour
parents:
diff changeset
522 # r7 = vector #
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
523 # spc = saved pc
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
524 # ssr = saved sr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
525
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
526 # Save away some registers
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
527 mov r15,r1 ! entry sp
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
528
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
529 #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
jlarmour
parents:
diff changeset
530 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
jlarmour
parents:
diff changeset
531 #else
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
532 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
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 stc gbr,r0 ! GBR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
535 mov.l r0,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
536 stc vbr,r0 ! VBR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
537 mov.l r0,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
538 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
539
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
540 stc spc,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
541 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
542 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
543 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
544
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
545 sts.l pr,@-r15 ! PR
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
546 sts.l mach,@-r15 ! mach
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
547 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
548
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
549 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
parents:
diff changeset
550 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
551 mov.l r13,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
552 mov.l r12,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
553 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
554 mov.l r10,@-r15
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 r9,@-r15
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 r8,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
557 stc.l r7_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
558 stc.l r6_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
559 stc.l r5_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
560 stc.l r4_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
561 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
562 stc.l r2_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
563 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
564 stc.l r0_bank,@-r15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
565
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
566 # 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
567 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
568 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
569 # ------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
570 # 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
571
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
572 #ifdef __DEBUG
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
573 # 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
574 .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
parents:
diff changeset
575 _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
parents:
diff changeset
576 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
577
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
578 # 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
579 # 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
580
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
581 # 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
582 # 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
583 # for this vector.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
584
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
585 #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
586 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
587 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
588 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
589 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
590 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
591
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
592 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
593
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
594 #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
595
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
596 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
597 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
598 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
599 bt 2f
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
600 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
601 bf 1f
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
602 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
603 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
604
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
605 #endif
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 #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
608 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
609 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
610 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
611 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
612 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
613 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
614 bra 1f
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 .align 2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
618 $n0301:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
619 .long 0x0301
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
620 $_cyg_instrument:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
621 .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
622 .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
623 1:
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
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
626 # Decode the interrupt vector
82
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
627 #ifdef CYGARC_SH_MOD_INTC_V2
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
628 mov.l $nCYGARC_REG_INTEVT2,r0
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
629 #else
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
630 mov #CYGARC_REG_INTEVT,r0
82
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
631 #endif
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
632 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
633 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
634 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
635 add #-14,r4 ! adjust so NMI becomes 0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
636 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
637 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
638 ! 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
639
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
640 // 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
641 #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
642 #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
643 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
644 #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
645 #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
646 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
647 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
648 #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
649
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
650
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
651 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
652 mov r4,r10 ! save across call.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
653 mov #CYGARC_SHREG_PC,r4
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
654 add r8,r4
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
655 mov.l @r4,r4
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
656 mov.l $_cyg_hal_gdb_isr,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
657 jsr @r1 ! returns 1 if the proper isr must be
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
658 nop ! called (i.e., if it was not a GDB
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
659 mov r10,r4 ! interrupt)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
660 cmp/eq #0,r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
661 bt skip_isr_proper
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
662 bra 2f
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
663 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
664 .align 2
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_hal_gdb_isr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
666 $_cyg_hal_gdb_isr:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
667 .long _cyg_hal_gdb_isr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
668 2:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
669 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
670
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
671 #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
672
80
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST
jlarmour
parents: 76
diff changeset
673 #if defined(CYGPKG_HAL_SH_7708) || defined(CYGPKG_HAL_SH_7709A)
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
674 # 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
675 # 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
676 # 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
677
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
678 # 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
679 # 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
680 # Ix = 15
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
681 # 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
682 # 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
683 # IRA sources:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
684 # 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
685 # IRB sources:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
686 # 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
687
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
688 # 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
689 # 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
690 # 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
691
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
692 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
693 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
694 shll2 r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
695 shll2 r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
696 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
697 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
698 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
699 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
700
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
701 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
702
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
703 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
704 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
705 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
706
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
707 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
708 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
709
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
710 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
711 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
712
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
713 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
714 # If interrupt was caused by GDB, the ISR call above
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
715 # is skipped by jumping here.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
716 skip_isr_proper:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
717 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
718
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
719 #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
720
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
721 # 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
722 # 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
723 # 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
724 # 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
725 # 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
726 # 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
727
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
728 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
729 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
730
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
731 #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
732
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
733 # 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
734 # 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
735
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
736 # 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
737 # 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
738 # 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
739 # 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
740 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
741
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
742 # 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
743 # 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
744 # 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
745
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
746 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
747 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
748 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
749 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
750 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
751 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
752 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
753
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
754 restore_state:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
755 # 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
756
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
757 # 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
758 # operation
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
759 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
760 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
761 # ------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
762 # 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
763
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
764 #
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
765 # 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
766 #
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
767
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
768 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
769 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
770 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
771 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
772 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
773 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
774 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
775 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
776 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
777 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
778 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
779 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
780 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
781 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
782 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
783 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
784 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
785
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
786 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
787 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
788 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
789
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
790 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
791 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
792 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
793 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
794
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
795 #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
796 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
797 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
798 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
799 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
800 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
801
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
802 rte
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
803 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
804
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
805
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
806 #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
807 #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
808 ##-----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
809 ## 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
810 ## 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
811 .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
812 _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
813 # 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
814 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
815 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
816
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
817 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
818 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
819 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
820 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
821
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
822 # enable interrupts
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
823 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
824
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
825 # 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
826 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
827 jsr @r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
828 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
829
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
830 # 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
831 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
832 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
833 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
834
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
835 # 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
836 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
837 rts
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
838 nop
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
839
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
840 #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
841 #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
842
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
843 .align 2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
844 #ifdef __DEBUG
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
845 $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
846 .long 0x77777771
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
847 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
848
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
849 #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
850 $__interrupt_stack:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
851 .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
852 $__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
853 .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
854 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
855 $nCYG_SR2:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
856 .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
857 $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
858 .long CYG_SR_BANK1
82
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
859 $nCYGARC_REG_INTEVT2:
6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST
jlarmour
parents: 80
diff changeset
860 .long CYGARC_REG_INTEVT2
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
861 $_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
862 .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
863 $_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
864 .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
865 $_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
866 .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
867
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
868 #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
869 $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
870 .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
871 $unmasked_SR:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
872 .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
jlarmour
parents:
diff changeset
873 #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
874
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
875
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
876 #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
877 .extern _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
878 .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
879 .extern _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
880
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
881 $_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
882 .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
883 $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
884 .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
885 $_interrupt_end:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
886 .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
887 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
888
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
889 #---------------------------------------------------------------------------
84
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
890 # Cache operations
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
891 # These need to be written in assembly to ensure they do not rely on data
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
892 # in cachable space (i.e., code must use registers exclusively, not the stack).
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
893
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
894 # This macro must be used at the top of each cache function. It ensures
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
895 # that the code gets executed from a shadow region where caching is disabled
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
896 # (0xA0000000).
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
897 .macro GOTO_NONCACHED_SHADOW
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
898 mova 10f,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
899 mov.l $MASK,r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
900 and r1,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
901 mov.l $BASE,r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
902 or r1,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
903 jmp @r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
904 nop
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
905 .align 2
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
906 10:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
907 .endm
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
908
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
909 .globl _cyg_hal_cache_enable
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
910 _cyg_hal_cache_enable:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
911 GOTO_NONCACHED_SHADOW
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
912 mov #CYGARC_REG_CCR,r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
913 mov.l @r1,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
914 or #CYGARC_REG_CCR_CE,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
915 mov.l r0,@r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
916 nop
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
917 rts
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
918 nop
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
919
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
920 .globl _cyg_hal_cache_disable
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jlarmour
parents: 82
diff changeset
921 _cyg_hal_cache_disable:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
922 GOTO_NONCACHED_SHADOW
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
923 mov #CYGARC_REG_CCR,r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
924 mov.l @r1,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
925 mov #CYGARC_REG_CCR_CE,r2
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
926 not r2,r2
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
927 and r2,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
928 mov.l r0,@r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
929 nop
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
930 rts
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
931 nop
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
932
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
933 .globl _cyg_hal_cache_invalidate_all
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
934 _cyg_hal_cache_invalidate_all:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
935 GOTO_NONCACHED_SHADOW
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
936 mov #CYGARC_REG_CCR,r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
937 mov.l @r1,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
938 or #CYGARC_REG_CCR_CF,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
939 mov.l r0,@r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
940 nop ! Nothing in the docs suggest we need
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
941 nop ! nops here, but without them, the
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
942 nop ! CPU crashes.
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
943 rts
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
944 nop
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
945
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
946 .globl _cyg_hal_cache_sync
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
947 _cyg_hal_cache_sync:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
948 GOTO_NONCACHED_SHADOW
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
949 mov.l $CYGARC_REG_CACHE_ADDRESS_FLUSH,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
950 mov.l $CYGARC_REG_CACHE_ADDRESS_BASE,r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
951 mov.l $CYGARC_REG_CACHE_ADDRESS_TOP,r2
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
952 mov.l $CYGARC_REG_CACHE_ADDRESS_STEP,r3
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
953 1: cmp/hi r1,r2
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
954 bf 2f
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
955 mov.l r0,@r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
956 bra 1b
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
957 add r3,r1 ! delay slot!
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
958 2: nop
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
959 rts
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
960 nop
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
961
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
962 .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
963 _cyg_hal_cache_write_mode:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
964 GOTO_NONCACHED_SHADOW
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
965 # Mode argument in r4. Compute the WT and CB states from this
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
966 mov r4,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
967 and #1,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
968 shll r0 ! shift to WT position
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
969 mov r0,r1 ! duplicate at CB position
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
970 shll r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
971 or r1,r0
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
972 xor #CYGARC_REG_CCR_WT,r0 ! WT must be 0 for write-back
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
973 # 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
974 mov #CYGARC_REG_CCR,r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
975 mov.l @r1,r3
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
976 mov #CYGARC_REG_CCR_CB|CYGARC_REG_CCR_WT,r2
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
977 not r2,r2
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
978 and r2,r3
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
979 # Or in the new settings and restore to CCR
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
980 or r0,r3
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
981 mov.l r3,@r1
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
982 nop
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
983 rts
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
984 nop
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
985
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
986
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
987
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
988 .align 2
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
989 $CYGARC_REG_CACHE_ADDRESS_FLUSH:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
990 .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
991 $CYGARC_REG_CACHE_ADDRESS_BASE:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
992 .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
993 $CYGARC_REG_CACHE_ADDRESS_TOP:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
994 .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
995 $CYGARC_REG_CACHE_ADDRESS_STEP:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
996 .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
997
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
998
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
999 $MASK:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1000 .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
1001 $BASE:
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1002 .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
1003
489eb5632bc3 Merge from eCos master repository on 2000-04-28-18:44:39-BST
jlarmour
parents: 82
diff changeset
1004 #---------------------------------------------------------------------------
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1005 # 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
1006 # 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
1007 # 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
1008
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1009 .data
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1010
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1011 .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
1012
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1013 .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
1014 _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
1015 .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
1016 .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
1017 .endr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1018
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1019 .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
1020 _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
1021 .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
1022 .long 0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1023 .endr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1024
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1025 .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
1026 _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
1027 .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
1028 .long 0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1029 .endr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1030
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1031 #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
1032 .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
1033 _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
1034 # 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
1035
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1036 .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
1037 .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
1038 .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
1039 .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
1040 .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
1041 .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
1042 .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
1043 .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
1044 .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
1045 .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
1046 .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
1047 .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
1048 .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
1049 .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
1050 .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
1051 .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
1052 .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
1053 .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
1054
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1055 # 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
1056 # by the HAL_INTERRUPT_SET_LEVEL macro.
80
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST
jlarmour
parents: 76
diff changeset
1057 #if defined(CYGPKG_HAL_SH_7708) || defined(CYGPKG_HAL_SH_7709A)
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1058 .rept (CYGNUM_HAL_ISR_MAX-CYGNUM_HAL_INTERRUPT_RESERVED_3E0)
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1059 .byte 0xf
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1060 .endr
80
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1061 #endif // CYGPKG_HAL_SH_7708 || CYGPKG_HAL_SH_7709A
76
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1062 #endif // CYGSEM_HAL_COMMON_INTERRUPTS_ALLOW_NESTING
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1063
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1064 #---------------------------------------------------------------------------
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1065 ## Temporary interrupt stack
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1066
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1067 .section ".bss"
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1068
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1069 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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1070 .balign 16
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1071 .global _cyg_interrupt_stack_base
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1072 _cyg_interrupt_stack_base:
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1073 __interrupt_stack_base:
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1074 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
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1075 .byte 0
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1076 .endr
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1077 .balign 16
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1078 .global _cyg_interrupt_stack
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1079 _cyg_interrupt_stack:
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1080 __interrupt_stack:
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1081
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1082 .long 0,0,0,0
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1083 #endif // CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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1084
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1085
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1086 #ifdef CYGSEM_HAL_ROM_MONITOR
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1087 // Enough space for stub to handle downloads. If using thread capabilities
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1088 // it will be using the RAM application's stack.
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1089 # define STARTUP_STACK_SIZE 1024
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1090 #else
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1091 # ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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1092 // Enough space to run constructors.
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1093 // FIXME: 512 is enough for all tests. doc/examples/twothreads
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1094 // calls printf on this stack though, and so requires more space.
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1095 # define STARTUP_STACK_SIZE 1024
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1096 # else
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1097 # define STARTUP_STACK_SIZE CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
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1098 # endif
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1099 #endif
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1100
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1101 .balign 16
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1102 __startup_stack_base:
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1103 .rept STARTUP_STACK_SIZE
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1104 .byte 0
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1105 .endr
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1106 .balign 16
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1107 __startup_stack:
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1108 .long 0,0,0,0
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1109
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1110 #---------------------------------------------------------------------------
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1111 # end of vectors.S