Mercurial > flash_v2

annotate packages/cygmon/current/misc/mips/mips-mon.c @ 115:6ed91473a1cd ecos-sw-2000-08-21

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Merge from eCos master repository on 2000-08-21-22:40:54-BST
author jlarmour
date Fri, 25 Aug 2000 17:32:38 +0000
parents
children e0c0827131d1
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115
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1 //==========================================================================
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2 //
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3 // mips-mon.c
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4 //
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5 // Support code to extend the generic monitor code to support
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6 // MIPS processors.
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7 //
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8 //==========================================================================
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9 //####COPYRIGHTBEGIN####
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10 //
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11 // -------------------------------------------
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12 // The contents of this file are subject to the Red Hat eCos Public License
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13 // Version 1.1 (the "License"); you may not use this file except in
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14 // compliance with the License. You may obtain a copy of the License at
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15 // http://www.redhat.com/
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16 //
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17 // Software distributed under the License is distributed on an "AS IS"
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18 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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19 // License for the specific language governing rights and limitations under
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20 // the License.
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21 //
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22 // The Original Code is eCos - Embedded Configurable Operating System,
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23 // released September 30, 1998.
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24 //
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25 // The Initial Developer of the Original Code is Red Hat.
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26 // Portions created by Red Hat are
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27 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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28 // All Rights Reserved.
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29 // -------------------------------------------
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30 //
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31 //####COPYRIGHTEND####
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32 //==========================================================================
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33 //#####DESCRIPTIONBEGIN####
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34 //
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35 // Author(s): dmoseley
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36 // Contributors: dmoseley
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37 // Date: 2000-06-07
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38 // Purpose: Support code to extend the generic monitor code to support
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39 // MIPS(R) processors.
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40 // Description: Further board specific support is in other files.
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41 // This file contains:
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42 // register names lookup table
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43 //
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44 // Empty Stubs:
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45 // Interval timer - This should really belong to the application
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46 // operating system.
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47 //
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48 // Should not contain:
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49 // low level uart getchar and putchar functions
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50 // delay function to support uart
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51 //
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52 //####DESCRIPTIONEND####
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53 //
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54 //=========================================================================
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55
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56 #include "monitor.h"
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57
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58 struct regstruct regtab[] =
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59 {
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60 { "zero", REG_ZERO },
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61 { "at", REG_AT },
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62 { "v0", REG_V0 },
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63 { "v1", REG_V1 },
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64 { "a0", REG_A0 },
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65 { "a1", REG_A1 },
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66 { "a2", REG_A2 },
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67 { "a3", REG_A3 },
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68 { "t0", REG_T0 },
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69 { "t1", REG_T1 },
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70 { "t2", REG_T2 },
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71 { "t3", REG_T3 },
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72 { "t4", REG_T4 },
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73 { "t5", REG_T5 },
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74 { "t6", REG_T6 },
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75 { "t7", REG_T7 },
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76 { "s0", REG_S0 },
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77 { "s1", REG_S1 },
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78 { "s2", REG_S2 },
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79 { "s3", REG_S3 },
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80 { "s4", REG_S4 },
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81 { "s5", REG_S5 },
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82 { "s6", REG_S6 },
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83 { "s7", REG_S7 },
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84 { "t8", REG_T8 },
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85 { "t9", REG_T9 },
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86 { "k0", REG_K0 },
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87 { "k1", REG_K1 },
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88 { "gp", REG_GP },
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89 { "sp", REG_SP },
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90 { "s8", REG_S8 },
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91 { "ra", REG_RA },
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92
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93 { "sr", REG_SR },
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94 { "lo", REG_LO },
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95 { "hi", REG_HI },
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96 { "badvr", REG_BAD },
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97 { "cause", REG_CAUSE },
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98 { "pc", REG_PC },
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99 #ifdef CYGHWR_HAL_MIPS_FPU
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100 { "f0", REG_F0 },
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101 { "f1", REG_F1 },
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102 { "f2", REG_F2 },
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103 { "f3", REG_F3 },
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104 { "f4", REG_F4 },
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105 { "f5", REG_F5 },
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106 { "f6", REG_F6 },
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107 { "f7", REG_F7 },
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108 { "f8", REG_F8 },
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109 { "f9", REG_F9 },
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110 { "f10", REG_F10 },
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111 { "f11", REG_F11 },
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112 { "f12", REG_F12 },
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113 { "f13", REG_F13 },
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114 { "f14", REG_F14 },
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115 { "f15", REG_F15 },
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116 { "f16", REG_F16 },
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117 { "f17", REG_F17 },
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118 { "f18", REG_F18 },
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119 { "f19", REG_F19 },
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120 { "f20", REG_F20 },
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121 { "f21", REG_F21 },
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122 { "f22", REG_F22 },
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123 { "f23", REG_F23 },
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124 { "f24", REG_F24 },
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125 { "f25", REG_F25 },
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126 { "f26", REG_F26 },
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127 { "f27", REG_F27 },
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128 { "f28", REG_F28 },
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129 { "f29", REG_F29 },
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130 { "f30", REG_F30 },
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131 { "f31", REG_F31 },
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132 { "fcr31", REG_FCR31 },
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133 #endif /* CYGHWR_HAL_MIPS_FPU */
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134 { 0, 0 }, /* Terminating element must be last */
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135 } ;
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136
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137 void
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138 initialize_mon(void)
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139 {
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140 } /* initialize_mon */
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141
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142
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143 #include <cyg/hal/hal_arch.h>
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144 #include <bsp/common/bsp_if.h>
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145 int
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146 machine_syscall(HAL_SavedRegisters *regs)
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147 {
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148 int res, err;
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149 target_register_t a0, a1, a2, a3;
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150
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151 a0 = get_register(REG_A0);
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152 a1 = get_register(REG_A1);
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153 a2 = get_register(REG_A2);
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154 a3 = get_register(REG_A3);
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155
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156 err = _bsp_do_syscall(a0, // Function
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157 a1, a2, a3, 0, // arguments,
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158 &res);
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159 if (err)
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160 {
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161 // This was a syscall. It has now been handled, so update the registers appropriately
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162 put_register(REG_V0, res);
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163 bsp_skip_instruction(regs);
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164 }
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165
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166 return err;
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167 }
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168
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169
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170 // Utility function for printing breakpoints
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171 void bp_print(target_register_t bp_val)
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172 {
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173 bsp_printf("0x%08lx\n", (unsigned long)bp_val);
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174 }