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Fix FREESCALE_EDMA_NBYTES_MLOFFYES_MLOFF() so it works with negative offsets.
author vae
date Wed, 29 Apr 2015 23:31:48 +0000
parents 74dbf4c3f2e1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 // # NEC/V85x exception/interrupt vectors
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6 // #
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7 // #========================================================================
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8 // ####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later
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16 // version.
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17 //
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18 // eCos is distributed in the hope that it will be useful, but WITHOUT
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19 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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21 // for more details.
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22 //
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23 // You should have received a copy of the GNU General Public License
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24 // along with eCos; if not, write to the Free Software Foundation, Inc.,
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25 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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26 //
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27 // As a special exception, if other files instantiate templates or use
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28 // macros or inline functions from this file, or you compile this file
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29 // and link it with other works to produce a work based on this file,
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30 // this file does not by itself cause the resulting work to be covered by
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31 // the GNU General Public License. However the source code for this file
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32 // must still be made available in accordance with section (3) of the GNU
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33 // General Public License v2.
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34 //
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35 // This exception does not invalidate any other reasons why a work based
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36 // on this file might be covered by the GNU General Public License.
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37 // -------------------------------------------
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38 // ####ECOSGPLCOPYRIGHTEND####
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39 // #========================================================================
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40 // ######DESCRIPTIONBEGIN####
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41 // #
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42 // # Author(s): gthomas, jlarmour
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43 // # Contributors: gthomas, jlarmour
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44 // # Date: 2001-03-21
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45 // # Purpose: NEC/V85x exception vectors
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46 // # Description: This file defines the code placed into the exception
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47 // # vectors. It also contains the first level default VSRs
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48 // # that save and restore state for both exceptions and
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49 // # interrupts.
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50 // #
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51 // #####DESCRIPTIONEND####
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52 // #
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53 // #========================================================================
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54
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55 #include <pkgconf/system.h>
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56 #include <pkgconf/hal.h>
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57 #include <pkgconf/hal_v85x.h>
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58 #ifdef CYGPKG_KERNEL
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59 #include <pkgconf/kernel.h>
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60 #else
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61 # undef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
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62 # undef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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63 #endif
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64 #include <cyg/hal/hal_platform_setup.h>
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65 #include CYGHWR_MEMORY_LAYOUT_H
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66
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67 #include <cyg/hal/nec_offsets.inc>
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68
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69 // Two different macros in case we ever decide to differentiate
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70 // between exceptions and interrupts.
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71 .macro EXCEPTION
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72 .org reset_vector+(0x0010*VECTOR)
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73 addi -CYGARC_EXCEPTION_FRAME_SIZE,sp,sp
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74 st.w r8,CYGARC_REG_R8[sp]
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75 movea VECTOR,r0,r8
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76 jr exception
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77 .set VECTOR, VECTOR+1
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78 .endm
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79
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80 .macro INTERRUPT
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81 .org reset_vector+(0x0010*VECTOR)
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82 addi -CYGARC_EXCEPTION_FRAME_SIZE,sp,sp
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83 st.w r8,CYGARC_REG_R8[sp]
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84 movea VECTOR,r0,r8
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85 jr exception
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86 .set VECTOR, VECTOR+1
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87 .endm
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88
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89 #if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)
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90 .section ".vectors","ax"
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91 .globl reset_vector
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92 reset_vector:
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93
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94 //
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95 // These are the hardware exception vectors.
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96 //
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97 __ROM_vsr:
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98 // start of ROM
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99 mov r0,sp // needed for platforms that have NMI 2 insns after reset
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100 // This jump works even for ROMRAM because it is PC relative
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101 jr start
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102
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103 .set VECTOR, 1
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104 .rept CYGNUM_HAL_EXCEPTION_COUNT-1
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105 EXCEPTION
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106 .endr
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107 .set VECTOR, CYGNUM_HAL_ISR_MIN
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108 .rept CYGNUM_HAL_ISR_COUNT
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109 INTERRUPT
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110 .endr
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111 #endif
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112
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113 .text
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114 .globl start
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115 start:
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116 #if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)
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117 // Before anything else, *carefully* check if this was actually an NMI
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118 // The assumption is that the stack pointer can only be 0 on reset
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119 // as set above at __ROM_vsr
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120 cmp r0,sp
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121 be 1f
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122 addi -CYGARC_EXCEPTION_FRAME_SIZE,sp,sp
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123 movea 1,r0,r8
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124 jr exception
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125 1:
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126 #endif
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127
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128 // Perform hardware initialization
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129 PLATFORM_SETUP1
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130
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131 // Copy everything to the proper VMA base and jump to it.
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132 #if defined(CYG_HAL_STARTUP_ROMRAM)
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133 lea CYGMEM_REGION_rom,r6
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134 lea CYGMEM_REGION_ram,r7
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135 lea ___rom_data_end,r8 // Assume end of .data == end of ROM
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136 1: ld.w 0[r6],r1
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137 st.w r1,0[r7]
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138 addi 4,r6,r6
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139 addi 4,r7,r7
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140 cmp r6,r8
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141 bne 1b
96
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142
156
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143 // now jump to RAM
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144 lea ___romram_jump_vector,r1
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145 jmp [r1]
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146
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147 ___romram_jump_vector:
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148
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149 #elif defined( CYG_HAL_STARTUP_ROM )
96
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150 // Relocate [copy] data from ROM to RAM
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151 lea ___rom_data_start,r6
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152 lea ___ram_data_start,r7
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153 lea ___ram_data_end,r8
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154 1: ld.w 0[r6],r1
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155 st.w r1,0[r7]
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156 addi 4,r6,r6
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157 addi 4,r7,r7
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158 cmp r7,r8
105
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159 bne 1b
156
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160
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161 // Initialize RAM vectors
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162 lea ___ram_vectors_loadaddr,r6
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163 lea ___ram_vectors_start,r7
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164 lea ___ram_vectors_end,r8
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165 1: ld.w 0[r6],r1
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166 st.w r1,0[r7]
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167 addi 4,r6,r6
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168 addi 4,r7,r7
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169 cmp r7,r8
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170 bne 1b
96
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171 #endif
156
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172
96
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173 // Initialize stack
126
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174 lea __startup_stack-16,r1
96
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175 mov r1,sp
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176
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177 // Clear BSS
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178 lea ___bss_start,r6
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179 lea ___bss_end,r7
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180 1: st.w r0,0[r6]
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181 addi 4,r6,r6
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182 cmp r6,r7
105
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183 bne 1b
96
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184
156
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185 #if defined(CYG_HAL_STARTUP_RAM)
96
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186 // Set up VSR pointers into this application/image
156
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187 lea _hal_vsr_table+(CYGNUM_HAL_ISR_MIN*4),r6
96
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188 movea CYGNUM_HAL_ISR_COUNT,r0,r7
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189 lea do_interrupt,r8
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190 10: st.w r8,0[r6]
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191 addi 4,r6,r6
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192 addi -1,r7,r7
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193 bne 10b
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194 #endif
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195
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196 // Initialize hardware
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197 jarl _cyg_hal_hardware_init,r31
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198
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199 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
156
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200 # ifdef CYG_HAL_STARTUP_RAM
96
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201 // Need to handle exceptions as well
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202 lea _hal_vsr_table,r6
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203 movea CYGNUM_HAL_EXCEPTION_COUNT,r0,r7
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204 lea do_exception,r8
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205 10: st.w r8,0[r6]
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206 addi 4,r6,r6
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207 addi -1,r7,r7
105
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208 bne 10b
156
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209 # endif
96
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210 jarl _initialize_stub,r31
128
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211 #else // CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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212 // All programs need to provide for NMI handlers
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213 lea _hal_vsr_table+4,r6
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214 lea do_exception,r8
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215 st.w r8,0[r6] // NMI pin
128
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216 #endif // CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
156
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217
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218 #if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)
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219 // we can process NMIs now
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220 lea __allow_nmi,r1
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221 addi 1,r0,r2
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222 st.w r2,0[r1]
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223 #endif
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224
101
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225 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT) \
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226 || defined(CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT)
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227 .extern hal_ctrlc_isr_init
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228 jarl _hal_ctrlc_isr_init,r31
96
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229 #endif
156
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230
96
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231 // Run through static constructors
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232 jarl _cyg_hal_invoke_constructors,r31
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233
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234 // Ready to start the eCos kernel
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235 jarl _cyg_start,r31
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236
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237 // If we get here, something is _very_ wrong
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238 _start_hang:
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239 br _start_hang
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240
156
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241 #if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)
96
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242 // Handle exception
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243 exception:
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244 // save exception context
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245 st.w ep,CYGARC_REG_EP[sp]
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246 mov sp,ep
156
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247 sst.w r8,CYGARC_REG_VECTOR[ep]
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248 sst.w r1,CYGARC_REG_R1[ep]
96
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249 addi CYGARC_EXCEPTION_FRAME_SIZE,ep,r1
156
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250 sst.w r2,CYGARC_REG_R2[ep]
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251 sst.w r1,CYGARC_REG_SP[ep]
96
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252 sst.w r4,CYGARC_REG_R4[ep]
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253 sst.w r5,CYGARC_REG_R5[ep]
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254 sst.w r6,CYGARC_REG_R6[ep]
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255 sst.w r7,CYGARC_REG_R7[ep]
156
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256 // sst.w r8,CYGARC_REG_R8[ep]
96
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257 sst.w r9,CYGARC_REG_R9[ep]
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258 sst.w r10,CYGARC_REG_R10[ep]
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259 sst.w r11,CYGARC_REG_R11[ep]
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260 sst.w r12,CYGARC_REG_R12[ep]
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261 sst.w r13,CYGARC_REG_R13[ep]
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262 sst.w r14,CYGARC_REG_R14[ep]
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263 sst.w r15,CYGARC_REG_R15[ep]
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264 sst.w r16,CYGARC_REG_R16[ep]
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265 sst.w r17,CYGARC_REG_R17[ep]
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266 sst.w r18,CYGARC_REG_R18[ep]
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267 sst.w r19,CYGARC_REG_R19[ep]
156
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268 #ifndef CYGDBG_HAL_COMMON_INTERRUPTS_SAVE_MINIMUM_CONTEXT
96
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269 sst.w r20,CYGARC_REG_R20[ep]
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270 sst.w r21,CYGARC_REG_R21[ep]
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271 sst.w r22,CYGARC_REG_R22[ep]
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272 sst.w r23,CYGARC_REG_R23[ep]
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273 sst.w r24,CYGARC_REG_R24[ep]
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274 sst.w r25,CYGARC_REG_R25[ep]
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275 sst.w r26,CYGARC_REG_R26[ep]
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276 sst.w r27,CYGARC_REG_R27[ep]
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277 sst.w r28,CYGARC_REG_R28[ep]
156
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diff changeset
278 #endif
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diff changeset
279 sst.w r29,CYGARC_REG_R29[ep] // NB frame pointer
96
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280 sst.w lp,CYGARC_REG_LP[ep]
156
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diff changeset
281 cmp CYGNUM_HAL_VECTOR_TRAP00,r8 // NMI?
96
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282 bge 05f
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283 stsr FEPC,r6 // saved state differs
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284 stsr FEPSW,r7
156
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diff changeset
285 lea __allow_nmi,r1 // is the system ready for NMIs?
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diff changeset
286 tst1 0, 0[r1]
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diff changeset
287 bne 10f
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diff changeset
288 // if not processing NMIs, allow restore
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289 sst.w r6,CYGARC_REG_PC[ep]
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diff changeset
290 sst.w r7,CYGARC_REG_PSW[ep]
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291 // Reenable exception processing
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diff changeset
292 stsr PSW,r6
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diff changeset
293 andi ~(CYGARC_PSW_EP|CYGARC_PSW_NP),r6,r6
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diff changeset
294 ldsr r6,PSW
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diff changeset
295 lea return_from_exception_or_interrupt,r1
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diff changeset
296 jmp [r1]
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297
96
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298 05: stsr EIPC,r6
156
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diff changeset
299 stsr EIPSW,r7
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300 cmp CYGNUM_HAL_VECTOR_ILGOP,r8 // Illegal opcode?
96
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301 bne 10f
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302 addi -4,r6,r6 // yes, adjust PC
156
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303 10: sst.w r6,CYGARC_REG_PC[ep]
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304 sst.w r7,CYGARC_REG_PSW[ep]
96
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305 stsr ECR,r6
156
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diff changeset
306 sst.w r6,CYGARC_REG_CAUSE[ep]
96
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307 // Reenable exception processing
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308 stsr PSW,r6
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309 andi ~(CYGARC_PSW_EP|CYGARC_PSW_NP),r6,r6
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310 ldsr r6,PSW
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311 shl 2,r8
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312 lea _hal_vsr_table,r1
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313 add r1,r8
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314 ld.w 0[r8],r1
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315 jmp [r1]
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316 #endif
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317
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318 do_exception:
156
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319 // pass in saved registers
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320 mov sp,r6
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321
126
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322 // leave space for the parameter flush back area (as per calling
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323 // conventions)
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324 addi -16,sp,sp
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325
96
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326 jarl _exception_handler,r31
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327
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328 return_from_exception_or_interrupt:
126
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329 // save sp, but remove space for the parameter flush back area
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330 // (as per calling conventions) at the same time
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331 addi 16,sp,ep
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332
156
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333 sld.w CYGARC_REG_PSW[ep],r7
96
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334 sld.w CYGARC_REG_R1[ep],r1
156
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335 sld.w CYGARC_REG_PC[ep],r6
96
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336 sld.w CYGARC_REG_R2[ep],r2
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337 // disable interrupts while restoring context
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338 ld.w CYGARC_REG_VECTOR[ep],r4
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339 stsr PSW,r8
156
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340 cmp CYGNUM_HAL_VECTOR_TRAP00,r4
96
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341 bge 10f
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342 ori CYGARC_PSW_NP,r8,r8 // returning from NMI
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343 ori CYGARC_PSW_ID,r8,r8 // disable interrupt
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344 ldsr r8,PSW
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345 ldsr r7,FEPSW
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346 ldsr r6,FEPC
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347 br 30f
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348 10: cmp CYGNUM_HAL_ISR_MIN,r4 // exception or interrupt
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349 bge 20f
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350 ori CYGARC_PSW_EP,r8,r8 // returning from exception
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351 20: ori CYGARC_PSW_ID,r8,r8 // disable interrupt
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352 ldsr r8,PSW
156
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353 ldsr r7,EIPSW // Avoid pipeline bubbles
96
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354 ldsr r6,EIPC
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355 30: sld.w CYGARC_REG_R4[ep],r4
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356 sld.w CYGARC_REG_R5[ep],r5
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357 sld.w CYGARC_REG_R6[ep],r6
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358 sld.w CYGARC_REG_R7[ep],r7
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359 sld.w CYGARC_REG_R8[ep],r8
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360 sld.w CYGARC_REG_R9[ep],r9
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361 sld.w CYGARC_REG_R10[ep],r10
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362 sld.w CYGARC_REG_R11[ep],r11
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363 sld.w CYGARC_REG_R12[ep],r12
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364 sld.w CYGARC_REG_R13[ep],r13
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365 sld.w CYGARC_REG_R14[ep],r14
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366 sld.w CYGARC_REG_R15[ep],r15
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367 sld.w CYGARC_REG_R16[ep],r16
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368 sld.w CYGARC_REG_R17[ep],r17
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369 sld.w CYGARC_REG_R18[ep],r18
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370 sld.w CYGARC_REG_R19[ep],r19
156
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371 #ifndef CYGDBG_HAL_COMMON_INTERRUPTS_SAVE_MINIMUM_CONTEXT
96
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372 sld.w CYGARC_REG_R20[ep],r20
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373 sld.w CYGARC_REG_R21[ep],r21
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374 sld.w CYGARC_REG_R22[ep],r22
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375 sld.w CYGARC_REG_R23[ep],r23
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376 sld.w CYGARC_REG_R24[ep],r24
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377 sld.w CYGARC_REG_R25[ep],r25
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378 sld.w CYGARC_REG_R26[ep],r26
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379 sld.w CYGARC_REG_R27[ep],r27
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380 sld.w CYGARC_REG_R28[ep],r28
156
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381 #endif
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382 sld.w CYGARC_REG_R29[ep],r29 // NB frame pointer
96
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383 sld.w CYGARC_REG_LP[ep],lp
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384 sld.w CYGARC_REG_SP[ep],sp
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385 sld.w CYGARC_REG_EP[ep],ep
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386 reti
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387
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388 // Handle interrupt - these are typically vectored into user code
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389 do_interrupt:
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390 mov sp,ep // save pointer to regs frame
126
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391 // leave space for the parameter flush back area (as per calling
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392 // conventions)
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393 addi -16,sp,sp
96
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394
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395 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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396 // Switch to interrupt stack
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397 lea irq_level,r6 // current number of nested interrupts
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398 ld.w 0[r6],r7
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399 addi 1,r7,r8
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400 st.w r8,0[r6]
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401 cmp 0,r7 // if was zero, switch stacks
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402 bne 10f
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403 mov sp,r1 // save old stack pointer
126
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404 lea __interrupt_stack-20,r2
96
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405 mov r2,sp
126
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406 st.w r1,16[sp]
96
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407 10:
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408 #endif // CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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409
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410 // The entire CPU state is now stashed on the stack,
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411 // increment the scheduler lock and handle the interrupt
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412
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413 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
149
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414 .extern _cyg_scheduler_sched_lock
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415 lea _cyg_scheduler_sched_lock,r7
96
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416 ld.w 0[r7],r8
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417 addi 1,r8,r8
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418 st.w r8,0[r7]
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419 #endif
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420
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421 #if defined(CYGPKG_KERNEL_INSTRUMENT) && \
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422 defined(CYGDBG_KERNEL_INSTRUMENT_INTR)
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423 lea RAISE_INTR,r6 // arg0 = type = INTR,RAISE
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424 ld.w CYGARC_REG_VECTOR[ep],r7 // args = vector
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425 mov r0,r8 // arg2 = 0
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426 jarl _cyg_instrument,r31
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427 #endif
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428
101
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429 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT) \
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430 || defined(CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT)
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431 // If we are supporting Ctrl-C interrupts from GDB, we must squirrel
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432 // away a pointer to the save interrupt state here so that we can
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433 // plant a breakpoint at some later time.
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434
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435 .extern _hal_saved_interrupt_state
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436 lea _hal_saved_interrupt_state,r8
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437 st.w ep,0[r8]
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diff changeset
438 #endif
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439
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440 #ifdef CYGIMP_KERNEL_INTERRUPTS_CHAIN
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441 mov r0,r8 // vector # (overloaded by kernel)
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442 #else
96
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443 ld.w CYGARC_REG_VECTOR[ep],r6 // vector #
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444 addi -CYGNUM_HAL_ISR_MIN,r6,r8
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445 shl 2,r8
101
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446 #endif
96
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447 lea _hal_interrupt_objects,r1
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448 add r8,r1
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449 ld.w 0[r1],r29 // save object handle
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450 lea _hal_interrupt_data,r1
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451 add r8,r1
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452 ld.w 0[r1],r7 // handler data
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453 lea _hal_interrupt_handlers,r1
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454 add r8,r1
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455 mov ep,r8 // pointer to saved registers
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456 ld.w 0[r1],r1 // handler routine
101
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457 #ifdef CYGIMP_KERNEL_INTERRUPTS_CHAIN
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458 ld.w CYGARC_REG_VECTOR[ep],r6 // vector #
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459 #endif
96
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460 jarl call_via_r1,r31
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461
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462 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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463 // If we are returning from the last nested interrupt, move back
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464 // to the thread stack. interrupt_end() must be called on the
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465 // thread stack since it potentially causes a context switch.
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466 lea irq_level,r6
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467 ld.w 0[r6],r7
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468 addi -1,r7,r8
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469 st.w r8,0[r6]
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470 cmp 0,r8
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471 bne 10f
126
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472 ld.w 16[sp],sp // Restore non-interrupt stack at last interrupt
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473 // this is offset 16 because of parameter
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474 // flush back area
96
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475 10:
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476 #endif // CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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477
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478 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
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479 // The return value from the handler (in r10) will indicate whether a
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480 // DSR is to be posted. Pass this together with a pointer to the
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481 // interrupt object we have just used to the interrupt tidy up routine.
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482
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483 mov r10,r6 // interrupt handler return code
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484 mov r29,r7 // object handle
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485 mov ep,r8 // register frame
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486 jarl _interrupt_end,r31 // post any bottom layer handle
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487
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488 #endif
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489 br return_from_exception_or_interrupt
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490
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491 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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492 .globl _hal_interrupt_stack_call_pending_DSRs
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493 _hal_interrupt_stack_call_pending_DSRs:
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494 stsr PSW,r9
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495 di // disable interrupts while changing stack
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496 // Switch to interrupt stack
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497 lea irq_level,r6 // current number of nested interrupts
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498 mov 1,r7 // note: this can never be non-zero at this point
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499 st.w r7,0[r6]
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500 mov sp,r1 // save old stack pointer
156
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501 lea __interrupt_stack-32,r8 // 32 for 16-byte parameter flush back
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502 // plus 12 bytes for following reg saves
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503 // plus 4 bytes to preserve alignment
96
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504 mov r8,sp
156
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505 st.w r1,16[sp]
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506 st.w r9,20[sp]
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diff changeset
507 st.w lp,24[sp]
96
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508 ei
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509 jarl _cyg_interrupt_call_pending_DSRs,lp
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510 di
156
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511 ld.w 24[sp],lp // restore state
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512 ld.w 20[sp],r6
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513 ld.w 16[sp],sp
96
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514 lea irq_level,r7
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515 st.w r0,0[r7]
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516 ldsr r6,PSW
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517 jmp [lp]
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518 #endif // CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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519
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520 //
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521 // Indirect subroutine call, via R1
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diff changeset
522
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523 call_via_r1:
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524 jmp [r1]
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525
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526 //
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527 // Reset the board
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528 //
151
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529 .globl _hal_reset_board
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530 _hal_reset_board:
96
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531 di // Turn off interrupts
156
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532 // Don't process NMIs
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diff changeset
533 lea __allow_nmi,r1
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534 st.w r0,0[r1]
96
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535 jmp [r0] // Restart machine
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536
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537 #if !defined(CYGSEM_HAL_NEC_INLINE_INTERRUPT_FUNCTIONS)
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538 .globl _hal_disable_interrupts
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539 _hal_disable_interrupts:
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540 stsr PSW,r10
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541 di
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542 jmp [lp]
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543
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544 .globl _hal_enable_interrupts
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545 _hal_enable_interrupts:
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546 stsr PSW,r6
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547 ei
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548 jmp [lp]
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549
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550 .globl _hal_restore_interrupts
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551 _hal_restore_interrupts:
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552 ldsr r6,PSW
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553 jmp [lp]
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554 #endif
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555
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556 // -------------------------------------------------------------------------
156
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557 .section ".ram_vectors","awx",@progbits
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558
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559 #if defined(CYG_HAL_STARTUP_ROM)
96
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560 // Trap jump table - used by builtin ROM
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561 __vsr_table:
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562 .rept CYGNUM_HAL_VSR_COUNT
156
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563 .word 0x00000794,0,0,0 // jr 0x0100xx0, nop, nop, nop
96
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564 .endr
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565 __vsr_table_end:
156
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566 #endif
96
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567
156
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568 #if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)
96
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569 _hal_vsr_table:
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570 .rept CYGNUM_HAL_EXCEPTION_COUNT
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571 .word do_exception
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572 .endr
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573 .rept CYGNUM_HAL_ISR_COUNT
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574 .word do_interrupt
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575 .endr
101
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576
156
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577 // Flag to indicate whether NMIs are allowed
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578 // Without this, if we do a soft reset (using hal_plf_reset_board above)
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579 // we may process NMIs like the watchdog timeout before the system can
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580 // accept them
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581 __allow_nmi:
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582 .word 0
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583
101
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584 .balign 64
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585 _hal_virtual_vector_table:
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586 .rept CYGNUM_CALL_IF_TABLE_SIZE
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587 .word 0
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588 .endr
158
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589
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590 #if CYGINT_HAL_V85X_ICE_DEBUG
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591 .globl _hal_v85x_ice_syscall_info
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592 _hal_v85x_ice_syscall_info:
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593 .rept 48
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594 .long 0
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595 .endr
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596 #endif // if CYGINT_HAL_V85X_ICE_DEBUG
156
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597 #endif // if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)
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598
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599 .data
96
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600 // Initial stack
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601 .rept 1024
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602 .byte 0
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603 .endr
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604 __startup_stack:
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605
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606 #ifndef CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
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607 #define CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE 4096
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608 #endif
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609 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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610 .balign 16
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611 .global _cyg_interrupt_stack_base
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612 _cyg_interrupt_stack_base:
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613 __interrupt_stack_base:
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614 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
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615 .byte 0
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616 .endr
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617 .balign 16
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618 .global _cyg_interrupt_stack
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619 _cyg_interrupt_stack:
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620 __interrupt_stack:
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621 irq_level:
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622 .long 0
156
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623 #endif
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624
96
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625
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626 // Interrupt vector tables.
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627 // These tables contain the isr, data and object pointers used to deliver
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628 // interrupts to user code.
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629
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630 .extern _hal_default_isr
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631
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632 .globl _hal_interrupt_handlers
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633 _hal_interrupt_handlers:
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634 .rept CYGNUM_HAL_ISR_COUNT
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635 .long _hal_default_isr
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636 .endr
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637
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638 .globl _hal_interrupt_data
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639 _hal_interrupt_data:
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640 .rept CYGNUM_HAL_ISR_COUNT
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641 .long 0
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642 .endr
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643
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644 .globl _hal_interrupt_objects
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645 _hal_interrupt_objects:
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646 .rept CYGNUM_HAL_ISR_COUNT
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647 .long 0
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648 .endr
156
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649
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650 // -------------------------------------------------------------------------
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651 // EOF vectors.S