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annotate jagcpu.c @ 1671:05c34078e1ac

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author Michael Pavone <pavone@retrodev.com>
date Wed, 02 Jan 2019 09:27:00 -0800
parents c1e78a101912
children
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rev   line source
1093
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1 #include <stdint.h>
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2 #include <stdio.h>
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3 #include "jagcpu.h"
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4
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5 char *gpu_mnemonics[] = {
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6 "add",
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7 "addc",
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8 "addq",
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9 "addqt",
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10 "sub",
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11 "subc",
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12 "subq",
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13 "subqt",
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14 "neg",
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15 "and",
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16 "or",
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17 "xor",
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18 "not",
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19 "btst",
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20 "bset",
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21 "bclr",
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22 "mult",
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23 "imult",
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24 "imultn",
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25 "resmac",
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26 "imacn",
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27 "div",
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28 "abs",
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29 "sh",
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30 "shlq",
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31 "shrq",
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32 "sha",
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33 "sharq",
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34 "ror",
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35 "rorq",
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36 "cmp",
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37 "cmpq",
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38 "sat8",
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39 "sat16",
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40 "move",
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41 "moveq",
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42 "moveta",
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43 "movefa",
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44 "movei",
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45 "loadb",
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46 "loadw",
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47 "load",
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48 "loadp",
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49 "load", //r14 relative
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50 "load", //r15 relative
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51 "storeb",
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52 "storew",
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53 "store",
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54 "storep",
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55 "store", //r14 relative
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56 "store", //r15 relative
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57 "move", //PC
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58 "jump",
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59 "jr",
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60 "mmult",
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61 "mtoi",
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62 "normi",
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63 "nop",
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64 "load", //r14 indexed
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65 "load", //r15 indexed
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66 "store", //r14 indexed
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67 "store", //r15 indexed
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68 "sat24",
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69 "pack",
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70 "unpack"
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71 };
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72
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73 char *dsp_mnemonics[DSP_ADDQMOD+1] = {
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74 [DSP_SUBQMOD] = "subqmod",
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75 [DSP_SAT16S] = "sat16s",
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76 [DSP_SAT32S] = "sat32s",
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77 [DSP_MIRROR] = "mirror",
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78 [DSP_ADDQMOD] = "addqmod"
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79 };
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80
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81 void init_dsp_mnemonic_table()
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82 {
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83 static uint8_t init_done;
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84 if (init_done) {
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85 return;
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86 }
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87 for (int i = 0; i < DSP_ADDQMOD; i++)
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88 {
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89 if (!dsp_mnemonics[i]) {
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90 dsp_mnemonics[i] = gpu_mnemonics[i];
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91 }
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92 }
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93 init_done = 1;
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94 }
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95
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96 uint16_t jag_opcode(uint16_t inst, uint8_t is_gpu)
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97 {
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98 uint16_t opcode = inst >> 10;
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99 if (is_gpu && opcode == GPU_PACK && (inst & 0x20)) {
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100 return GPU_UNPACK;
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101 }
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102 return opcode;
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103 }
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104
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105 uint16_t jag_reg2(uint16_t inst)
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106 {
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107 return inst & 0x1F;
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108 }
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109
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110 uint16_t jag_reg1(uint16_t inst)
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111 {
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112 return inst >> 5 & 0x1F;
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113 }
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114
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115 //moveq and bit instructions should just use jag_reg1 instead
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116 uint32_t jag_quick(uint16_t inst)
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117 {
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118 uint32_t val = inst >> 5 & 0x1F;
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119 return val ? val : 32;
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120 }
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121
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122 uint8_t is_quick_1_32_opcode(uint16_t opcode, uint8_t is_gpu)
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123 {
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124 return opcode == JAG_ADDQ
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125 || opcode == JAG_ADDQT
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126 || opcode == JAG_SUBQ
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127 || opcode == JAG_SUBQT
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128 || opcode == JAG_SHLQ
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129 || opcode == JAG_SHRQ
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130 || opcode == JAG_SHARQ
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131 || opcode == JAG_RORQ
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132 || (!is_gpu && (
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133 opcode == DSP_SUBQMOD
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134 || opcode == DSP_ADDQMOD
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135 ));
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136 }
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137
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138 uint8_t is_quick_0_31_opcode(uint16_t opcode)
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139 {
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140 return opcode == JAG_MOVEQ
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141 || opcode == JAG_BTST
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142 || opcode == JAG_BSET
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143 || opcode == JAG_BCLR;
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144 }
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145
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146 uint8_t is_load(uint16_t opcode, uint8_t is_gpu)
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147 {
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148 return opcode == JAG_LOAD
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149 || opcode == JAG_LOADB
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150 || opcode == JAG_LOADW
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diff changeset
151 || (is_gpu && opcode == GPU_LOADP);
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Michael Pavone <pavone@retrodev.com>
parents: 1095
diff changeset
152 }
1ab30d427db8 Better disassembly of GPU/DSP load store instructions
Michael Pavone <pavone@retrodev.com>
parents: 1095
diff changeset
153
1ab30d427db8 Better disassembly of GPU/DSP load store instructions
Michael Pavone <pavone@retrodev.com>
parents: 1095
diff changeset
154 uint8_t is_store(uint16_t opcode, uint8_t is_gpu)
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Michael Pavone <pavone@retrodev.com>
parents: 1095
diff changeset
155 {
1ab30d427db8 Better disassembly of GPU/DSP load store instructions
Michael Pavone <pavone@retrodev.com>
parents: 1095
diff changeset
156 return opcode == JAG_STORE
1ab30d427db8 Better disassembly of GPU/DSP load store instructions
Michael Pavone <pavone@retrodev.com>
parents: 1095
diff changeset
157 || opcode == JAG_STOREB
1ab30d427db8 Better disassembly of GPU/DSP load store instructions
Michael Pavone <pavone@retrodev.com>
parents: 1095
diff changeset
158 || opcode == JAG_STOREW
1ab30d427db8 Better disassembly of GPU/DSP load store instructions
Michael Pavone <pavone@retrodev.com>
parents: 1095
diff changeset
159 || (is_gpu && opcode == GPU_STOREP);
1ab30d427db8 Better disassembly of GPU/DSP load store instructions
Michael Pavone <pavone@retrodev.com>
parents: 1095
diff changeset
160 }
1ab30d427db8 Better disassembly of GPU/DSP load store instructions
Michael Pavone <pavone@retrodev.com>
parents: 1095
diff changeset
161
1115
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
162 uint8_t is_single_source(uint16_t opcode, uint8_t is_gpu)
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
163 {
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
164 return opcode == JAG_NEG
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
165 || opcode == JAG_NOT
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
166 || opcode == JAG_ABS
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
167 || opcode == GPU_SAT16 //no is_gpu check needed as DSP_SAT16S is also single source
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
168 || (is_gpu && (
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
169 opcode == GPU_SAT8
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
170 || opcode == GPU_SAT24
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
171 || opcode == GPU_PACK
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
172 || opcode == GPU_UNPACK
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
173 ))
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
174 || (!is_gpu && (
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
175 opcode == DSP_SAT32S
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
176 || opcode == DSP_MIRROR
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
177 ));
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
178 }
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
179
1093
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
180 char * jag_cc_names[] = {
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parents:
diff changeset
181 "t",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
182 "ne",
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
183 "eq",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
184 "f",
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
185 "cc",
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
186 "hi",
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
187 "eq_cc",
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
188 "f",
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
189 "cs",
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
190 "ne_cs",
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
191 "eq_cs",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
192 "f",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
193 "f",
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
194 "f",
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
195 "f",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
196 "f"
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
197 "t_alt",
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
198 "ne_alt",
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
199 "eq_alt",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
200 "f",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
201 "pl",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
202 "ne_pl",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
203 "eq_pl",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
204 "f",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
205 "mi",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
206 "ne_mi",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
207 "eq_mi"
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
208 };
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
209
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
210 char * jag_cc(uint16_t inst)
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
211 {
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
212 uint16_t ccnum = jag_reg2(inst);
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
213 if (ccnum >= sizeof(jag_cc_names)/sizeof(*jag_cc_names)) {
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
214 return jag_cc_names[3];
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
215 }
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
216 return jag_cc_names[ccnum];
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
217 }
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
218
1115
c1e78a101912 WIP Jaguar GPU/DSP emulation
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parents: 1096
diff changeset
219 uint8_t jag_is_alwyas_falsse(uint16_t cond)
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
220 {
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
221 return (cond & 3) == 3 || (cond && 0xC) == 0xC;
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
222 }
c1e78a101912 WIP Jaguar GPU/DSP emulation
Michael Pavone <pavone@retrodev.com>
parents: 1096
diff changeset
223
1093
4987fddd42a0 Initial stab at jaguar disassemler
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parents:
diff changeset
224 uint32_t jag_jr_dest(uint16_t inst, uint32_t address)
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
225 {
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
226 uint32_t rel = jag_reg1(inst);
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
227 if (rel & 0x10) {
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
228 rel |= 0xFFFFFFE0;
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
229 }
1094
1dba006bad47 Get Jaguar disassembler more or less working. Dump gpu program to file when GPU GO bit is set
Michael Pavone <pavone@retrodev.com>
parents: 1093
diff changeset
230 return address + 2 + rel*2;
1093
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
231 }
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
232
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
233 int jag_cpu_disasm(uint16_t **stream, uint32_t address, char *dst, uint8_t is_gpu, uint8_t labels)
4987fddd42a0 Initial stab at jaguar disassemler
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parents:
diff changeset
234 {
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
235 uint16_t inst = **stream;
1094
1dba006bad47 Get Jaguar disassembler more or less working. Dump gpu program to file when GPU GO bit is set
Michael Pavone <pavone@retrodev.com>
parents: 1093
diff changeset
236 (*stream)++;
1093
4987fddd42a0 Initial stab at jaguar disassemler
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parents:
diff changeset
237 uint16_t opcode = jag_opcode(inst, is_gpu);
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
238 char **mnemonics;
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
239 if (is_gpu) {
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
240 mnemonics = gpu_mnemonics;
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
241 } else {
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
242 init_dsp_mnemonic_table();
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
243 mnemonics = dsp_mnemonics;
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
244 }
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
245 switch (opcode)
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
246 {
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
247 case JAG_MOVEI: {
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
248 uint32_t immed = **stream;
1094
1dba006bad47 Get Jaguar disassembler more or less working. Dump gpu program to file when GPU GO bit is set
Michael Pavone <pavone@retrodev.com>
parents: 1093
diff changeset
249 (*stream)++;
1093
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
250 immed |= **stream << 16;
1094
1dba006bad47 Get Jaguar disassembler more or less working. Dump gpu program to file when GPU GO bit is set
Michael Pavone <pavone@retrodev.com>
parents: 1093
diff changeset
251 (*stream)++;
1dba006bad47 Get Jaguar disassembler more or less working. Dump gpu program to file when GPU GO bit is set
Michael Pavone <pavone@retrodev.com>
parents: 1093
diff changeset
252 return sprintf(dst, "%s $%X, r%d", mnemonics[opcode], immed, jag_reg2(inst));
1093
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
253 }
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
254 case JAG_JR:
1094
1dba006bad47 Get Jaguar disassembler more or less working. Dump gpu program to file when GPU GO bit is set
Michael Pavone <pavone@retrodev.com>
parents: 1093
diff changeset
255 return sprintf(dst,
1093
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
256 labels ? "%s %s, ADR_%X" : "%s %s, $W%X",
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
257 mnemonics[opcode], jag_cc(inst), jag_jr_dest(inst, address)
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
258 );
4987fddd42a0 Initial stab at jaguar disassemler
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
259 case JAG_JUMP:
1094
1dba006bad47 Get Jaguar disassembler more or less working. Dump gpu program to file when GPU GO bit is set
Michael Pavone <pavone@retrodev.com>
parents: 1093
diff changeset
260 return sprintf(dst, "%s %s, (r%d)", mnemonics[opcode], jag_cc(inst), jag_reg1(inst));
1095
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
261 case JAG_LOAD_R14_REL:
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
262 case JAG_LOAD_R15_REL:
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
263 return sprintf(dst, "%s (r%d+%d), r%d",
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
264 mnemonics[opcode],
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
265 opcode == JAG_LOAD_R14_REL ? 14 : 15,
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
266 jag_quick(inst),
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
267 jag_reg2(inst)
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
268 );
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
269 break;
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
270 case JAG_STORE_R14_REL:
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
271 case JAG_STORE_R15_REL:
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
272 return sprintf(dst, "%s r%d, (r%d+%d)",
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
273 mnemonics[opcode],
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
274 jag_reg2(inst),
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
275 opcode == JAG_STORE_R14_REL ? 14 : 15,
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
276 jag_quick(inst)
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
277 );
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
278 break;
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
279 case JAG_LOAD_R14_INDEXED:
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
280 case JAG_LOAD_R15_INDEXED:
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
281 return sprintf(dst, "%s (r%d+r%d), r%d",
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
282 mnemonics[opcode],
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
283 opcode == JAG_LOAD_R14_INDEXED ? 14 : 15,
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
284 jag_reg1(inst),
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
285 jag_reg2(inst)
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
286 );
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
287 break;
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
288 case JAG_STORE_R14_INDEXED:
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
289 case JAG_STORE_R15_INDEXED:
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
290 return sprintf(dst, "%s r%d, (r%d+r%d)",
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
Michael Pavone <pavone@retrodev.com>
parents: 1094
diff changeset
291 mnemonics[opcode],
920d796ea6a2 Correct disassembly of r14/r15 relative loads and stores
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292 jag_reg2(inst),
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293 opcode == JAG_STORE_R14_INDEXED ? 14 : 15,
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294 jag_reg1(inst)
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295 );
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296 break;
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297 default:
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298 if (is_quick_1_32_opcode(opcode, is_gpu)) {
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299 return sprintf(dst, "%s %d, r%d", mnemonics[opcode], jag_quick(inst), jag_reg2(inst));
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300 } else if (is_quick_0_31_opcode(opcode)) {
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301 return sprintf(dst, "%s %d, r%d", mnemonics[opcode], jag_reg1(inst), jag_reg2(inst));
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302 } else if (is_load(opcode, is_gpu)) {
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303 return sprintf(dst, "%s (r%d), r%d", mnemonics[opcode], jag_reg1(inst), jag_reg2(inst));
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304 } else if (is_store(opcode, is_gpu)) {
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305 return sprintf(dst, "%s r%d, (r%d)", mnemonics[opcode], jag_reg2(inst), jag_reg1(inst));
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306 } else {
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307 return sprintf(dst, "%s r%d, r%d", mnemonics[opcode], jag_reg1(inst), jag_reg2(inst));
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308 }
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309 }
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310 }