Revision 07d2c595
| b/target-i386/helper.c | ||
|---|---|---|
| 5239 | 5239 |
#undef SHIFT |
| 5240 | 5240 |
|
| 5241 | 5241 |
#endif |
| 5242 |
|
|
| 5243 |
static int compute_all_eflags(void) |
|
| 5244 |
{
|
|
| 5245 |
return CC_SRC; |
|
| 5246 |
} |
|
| 5247 |
|
|
| 5248 |
static int compute_c_eflags(void) |
|
| 5249 |
{
|
|
| 5250 |
return CC_SRC & CC_C; |
|
| 5251 |
} |
|
| 5252 |
|
|
| 5253 |
CCTable cc_table[CC_OP_NB] = {
|
|
| 5254 |
[CC_OP_DYNAMIC] = { /* should never happen */ },
|
|
| 5255 |
|
|
| 5256 |
[CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
|
|
| 5257 |
|
|
| 5258 |
[CC_OP_MULB] = { compute_all_mulb, compute_c_mull },
|
|
| 5259 |
[CC_OP_MULW] = { compute_all_mulw, compute_c_mull },
|
|
| 5260 |
[CC_OP_MULL] = { compute_all_mull, compute_c_mull },
|
|
| 5261 |
|
|
| 5262 |
[CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
|
|
| 5263 |
[CC_OP_ADDW] = { compute_all_addw, compute_c_addw },
|
|
| 5264 |
[CC_OP_ADDL] = { compute_all_addl, compute_c_addl },
|
|
| 5265 |
|
|
| 5266 |
[CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
|
|
| 5267 |
[CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw },
|
|
| 5268 |
[CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl },
|
|
| 5269 |
|
|
| 5270 |
[CC_OP_SUBB] = { compute_all_subb, compute_c_subb },
|
|
| 5271 |
[CC_OP_SUBW] = { compute_all_subw, compute_c_subw },
|
|
| 5272 |
[CC_OP_SUBL] = { compute_all_subl, compute_c_subl },
|
|
| 5273 |
|
|
| 5274 |
[CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb },
|
|
| 5275 |
[CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw },
|
|
| 5276 |
[CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl },
|
|
| 5277 |
|
|
| 5278 |
[CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
|
|
| 5279 |
[CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
|
|
| 5280 |
[CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
|
|
| 5281 |
|
|
| 5282 |
[CC_OP_INCB] = { compute_all_incb, compute_c_incl },
|
|
| 5283 |
[CC_OP_INCW] = { compute_all_incw, compute_c_incl },
|
|
| 5284 |
[CC_OP_INCL] = { compute_all_incl, compute_c_incl },
|
|
| 5285 |
|
|
| 5286 |
[CC_OP_DECB] = { compute_all_decb, compute_c_incl },
|
|
| 5287 |
[CC_OP_DECW] = { compute_all_decw, compute_c_incl },
|
|
| 5288 |
[CC_OP_DECL] = { compute_all_decl, compute_c_incl },
|
|
| 5289 |
|
|
| 5290 |
[CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
|
|
| 5291 |
[CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
|
|
| 5292 |
[CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
|
|
| 5293 |
|
|
| 5294 |
[CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
|
|
| 5295 |
[CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
|
|
| 5296 |
[CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
|
|
| 5297 |
|
|
| 5298 |
#ifdef TARGET_X86_64 |
|
| 5299 |
[CC_OP_MULQ] = { compute_all_mulq, compute_c_mull },
|
|
| 5300 |
|
|
| 5301 |
[CC_OP_ADDQ] = { compute_all_addq, compute_c_addq },
|
|
| 5302 |
|
|
| 5303 |
[CC_OP_ADCQ] = { compute_all_adcq, compute_c_adcq },
|
|
| 5304 |
|
|
| 5305 |
[CC_OP_SUBQ] = { compute_all_subq, compute_c_subq },
|
|
| 5306 |
|
|
| 5307 |
[CC_OP_SBBQ] = { compute_all_sbbq, compute_c_sbbq },
|
|
| 5308 |
|
|
| 5309 |
[CC_OP_LOGICQ] = { compute_all_logicq, compute_c_logicq },
|
|
| 5310 |
|
|
| 5311 |
[CC_OP_INCQ] = { compute_all_incq, compute_c_incl },
|
|
| 5312 |
|
|
| 5313 |
[CC_OP_DECQ] = { compute_all_decq, compute_c_incl },
|
|
| 5314 |
|
|
| 5315 |
[CC_OP_SHLQ] = { compute_all_shlq, compute_c_shlq },
|
|
| 5316 |
|
|
| 5317 |
[CC_OP_SARQ] = { compute_all_sarq, compute_c_sarl },
|
|
| 5318 |
#endif |
|
| 5319 |
}; |
|
| 5320 |
|
|
| b/target-i386/helper_template.h | ||
|---|---|---|
| 50 | 50 |
#error unhandled operand size |
| 51 | 51 |
#endif |
| 52 | 52 |
|
| 53 |
/* dynamic flags computation */ |
|
| 54 |
|
|
| 55 |
static int glue(compute_all_add, SUFFIX)(void) |
|
| 56 |
{
|
|
| 57 |
int cf, pf, af, zf, sf, of; |
|
| 58 |
target_long src1, src2; |
|
| 59 |
src1 = CC_SRC; |
|
| 60 |
src2 = CC_DST - CC_SRC; |
|
| 61 |
cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; |
|
| 62 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 63 |
af = (CC_DST ^ src1 ^ src2) & 0x10; |
|
| 64 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 65 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 66 |
of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
|
| 67 |
return cf | pf | af | zf | sf | of; |
|
| 68 |
} |
|
| 69 |
|
|
| 70 |
static int glue(compute_c_add, SUFFIX)(void) |
|
| 71 |
{
|
|
| 72 |
int cf; |
|
| 73 |
target_long src1; |
|
| 74 |
src1 = CC_SRC; |
|
| 75 |
cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; |
|
| 76 |
return cf; |
|
| 77 |
} |
|
| 78 |
|
|
| 79 |
static int glue(compute_all_adc, SUFFIX)(void) |
|
| 80 |
{
|
|
| 81 |
int cf, pf, af, zf, sf, of; |
|
| 82 |
target_long src1, src2; |
|
| 83 |
src1 = CC_SRC; |
|
| 84 |
src2 = CC_DST - CC_SRC - 1; |
|
| 85 |
cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; |
|
| 86 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 87 |
af = (CC_DST ^ src1 ^ src2) & 0x10; |
|
| 88 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 89 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 90 |
of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
|
| 91 |
return cf | pf | af | zf | sf | of; |
|
| 92 |
} |
|
| 93 |
|
|
| 94 |
static int glue(compute_c_adc, SUFFIX)(void) |
|
| 95 |
{
|
|
| 96 |
int cf; |
|
| 97 |
target_long src1; |
|
| 98 |
src1 = CC_SRC; |
|
| 99 |
cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; |
|
| 100 |
return cf; |
|
| 101 |
} |
|
| 102 |
|
|
| 103 |
static int glue(compute_all_sub, SUFFIX)(void) |
|
| 104 |
{
|
|
| 105 |
int cf, pf, af, zf, sf, of; |
|
| 106 |
target_long src1, src2; |
|
| 107 |
src1 = CC_DST + CC_SRC; |
|
| 108 |
src2 = CC_SRC; |
|
| 109 |
cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; |
|
| 110 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 111 |
af = (CC_DST ^ src1 ^ src2) & 0x10; |
|
| 112 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 113 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 114 |
of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
|
| 115 |
return cf | pf | af | zf | sf | of; |
|
| 116 |
} |
|
| 117 |
|
|
| 118 |
static int glue(compute_c_sub, SUFFIX)(void) |
|
| 119 |
{
|
|
| 120 |
int cf; |
|
| 121 |
target_long src1, src2; |
|
| 122 |
src1 = CC_DST + CC_SRC; |
|
| 123 |
src2 = CC_SRC; |
|
| 124 |
cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; |
|
| 125 |
return cf; |
|
| 126 |
} |
|
| 127 |
|
|
| 128 |
static int glue(compute_all_sbb, SUFFIX)(void) |
|
| 129 |
{
|
|
| 130 |
int cf, pf, af, zf, sf, of; |
|
| 131 |
target_long src1, src2; |
|
| 132 |
src1 = CC_DST + CC_SRC + 1; |
|
| 133 |
src2 = CC_SRC; |
|
| 134 |
cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; |
|
| 135 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 136 |
af = (CC_DST ^ src1 ^ src2) & 0x10; |
|
| 137 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 138 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 139 |
of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
|
| 140 |
return cf | pf | af | zf | sf | of; |
|
| 141 |
} |
|
| 142 |
|
|
| 143 |
static int glue(compute_c_sbb, SUFFIX)(void) |
|
| 144 |
{
|
|
| 145 |
int cf; |
|
| 146 |
target_long src1, src2; |
|
| 147 |
src1 = CC_DST + CC_SRC + 1; |
|
| 148 |
src2 = CC_SRC; |
|
| 149 |
cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; |
|
| 150 |
return cf; |
|
| 151 |
} |
|
| 152 |
|
|
| 153 |
static int glue(compute_all_logic, SUFFIX)(void) |
|
| 154 |
{
|
|
| 155 |
int cf, pf, af, zf, sf, of; |
|
| 156 |
cf = 0; |
|
| 157 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 158 |
af = 0; |
|
| 159 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 160 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 161 |
of = 0; |
|
| 162 |
return cf | pf | af | zf | sf | of; |
|
| 163 |
} |
|
| 164 |
|
|
| 165 |
static int glue(compute_c_logic, SUFFIX)(void) |
|
| 166 |
{
|
|
| 167 |
return 0; |
|
| 168 |
} |
|
| 169 |
|
|
| 170 |
static int glue(compute_all_inc, SUFFIX)(void) |
|
| 171 |
{
|
|
| 172 |
int cf, pf, af, zf, sf, of; |
|
| 173 |
target_long src1, src2; |
|
| 174 |
src1 = CC_DST - 1; |
|
| 175 |
src2 = 1; |
|
| 176 |
cf = CC_SRC; |
|
| 177 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 178 |
af = (CC_DST ^ src1 ^ src2) & 0x10; |
|
| 179 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 180 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 181 |
of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11; |
|
| 182 |
return cf | pf | af | zf | sf | of; |
|
| 183 |
} |
|
| 184 |
|
|
| 185 |
#if DATA_BITS == 32 |
|
| 186 |
static int glue(compute_c_inc, SUFFIX)(void) |
|
| 187 |
{
|
|
| 188 |
return CC_SRC; |
|
| 189 |
} |
|
| 190 |
#endif |
|
| 191 |
|
|
| 192 |
static int glue(compute_all_dec, SUFFIX)(void) |
|
| 193 |
{
|
|
| 194 |
int cf, pf, af, zf, sf, of; |
|
| 195 |
target_long src1, src2; |
|
| 196 |
src1 = CC_DST + 1; |
|
| 197 |
src2 = 1; |
|
| 198 |
cf = CC_SRC; |
|
| 199 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 200 |
af = (CC_DST ^ src1 ^ src2) & 0x10; |
|
| 201 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 202 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 203 |
of = ((CC_DST & DATA_MASK) == ((target_ulong)SIGN_MASK - 1)) << 11; |
|
| 204 |
return cf | pf | af | zf | sf | of; |
|
| 205 |
} |
|
| 206 |
|
|
| 207 |
static int glue(compute_all_shl, SUFFIX)(void) |
|
| 208 |
{
|
|
| 209 |
int cf, pf, af, zf, sf, of; |
|
| 210 |
cf = (CC_SRC >> (DATA_BITS - 1)) & CC_C; |
|
| 211 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 212 |
af = 0; /* undefined */ |
|
| 213 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 214 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 215 |
/* of is defined if shift count == 1 */ |
|
| 216 |
of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O; |
|
| 217 |
return cf | pf | af | zf | sf | of; |
|
| 218 |
} |
|
| 219 |
|
|
| 220 |
static int glue(compute_c_shl, SUFFIX)(void) |
|
| 221 |
{
|
|
| 222 |
return (CC_SRC >> (DATA_BITS - 1)) & CC_C; |
|
| 223 |
} |
|
| 224 |
|
|
| 225 |
#if DATA_BITS == 32 |
|
| 226 |
static int glue(compute_c_sar, SUFFIX)(void) |
|
| 227 |
{
|
|
| 228 |
return CC_SRC & 1; |
|
| 229 |
} |
|
| 230 |
#endif |
|
| 231 |
|
|
| 232 |
static int glue(compute_all_sar, SUFFIX)(void) |
|
| 233 |
{
|
|
| 234 |
int cf, pf, af, zf, sf, of; |
|
| 235 |
cf = CC_SRC & 1; |
|
| 236 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 237 |
af = 0; /* undefined */ |
|
| 238 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 239 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 240 |
/* of is defined if shift count == 1 */ |
|
| 241 |
of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O; |
|
| 242 |
return cf | pf | af | zf | sf | of; |
|
| 243 |
} |
|
| 244 |
|
|
| 245 |
#if DATA_BITS == 32 |
|
| 246 |
static int glue(compute_c_mul, SUFFIX)(void) |
|
| 247 |
{
|
|
| 248 |
int cf; |
|
| 249 |
cf = (CC_SRC != 0); |
|
| 250 |
return cf; |
|
| 251 |
} |
|
| 252 |
#endif |
|
| 253 |
|
|
| 254 |
/* NOTE: we compute the flags like the P4. On olders CPUs, only OF and |
|
| 255 |
CF are modified and it is slower to do that. */ |
|
| 256 |
static int glue(compute_all_mul, SUFFIX)(void) |
|
| 257 |
{
|
|
| 258 |
int cf, pf, af, zf, sf, of; |
|
| 259 |
cf = (CC_SRC != 0); |
|
| 260 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 261 |
af = 0; /* undefined */ |
|
| 262 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 263 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 264 |
of = cf << 11; |
|
| 265 |
return cf | pf | af | zf | sf | of; |
|
| 266 |
} |
|
| 267 |
|
|
| 268 |
/* shifts */ |
|
| 269 |
|
|
| 53 | 270 |
target_ulong glue(helper_rcl, SUFFIX)(target_ulong t0, target_ulong t1) |
| 54 | 271 |
{
|
| 55 | 272 |
int count, eflags; |
| b/target-i386/op.c | ||
|---|---|---|
| 752 | 752 |
EAX = (EAX & ~0xff) | ((-cf) & 0xff); |
| 753 | 753 |
} |
| 754 | 754 |
|
| 755 |
static int compute_all_eflags(void) |
|
| 756 |
{
|
|
| 757 |
return CC_SRC; |
|
| 758 |
} |
|
| 759 |
|
|
| 760 |
static int compute_c_eflags(void) |
|
| 761 |
{
|
|
| 762 |
return CC_SRC & CC_C; |
|
| 763 |
} |
|
| 764 |
|
|
| 765 |
CCTable cc_table[CC_OP_NB] = {
|
|
| 766 |
[CC_OP_DYNAMIC] = { /* should never happen */ },
|
|
| 767 |
|
|
| 768 |
[CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
|
|
| 769 |
|
|
| 770 |
[CC_OP_MULB] = { compute_all_mulb, compute_c_mull },
|
|
| 771 |
[CC_OP_MULW] = { compute_all_mulw, compute_c_mull },
|
|
| 772 |
[CC_OP_MULL] = { compute_all_mull, compute_c_mull },
|
|
| 773 |
|
|
| 774 |
[CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
|
|
| 775 |
[CC_OP_ADDW] = { compute_all_addw, compute_c_addw },
|
|
| 776 |
[CC_OP_ADDL] = { compute_all_addl, compute_c_addl },
|
|
| 777 |
|
|
| 778 |
[CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
|
|
| 779 |
[CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw },
|
|
| 780 |
[CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl },
|
|
| 781 |
|
|
| 782 |
[CC_OP_SUBB] = { compute_all_subb, compute_c_subb },
|
|
| 783 |
[CC_OP_SUBW] = { compute_all_subw, compute_c_subw },
|
|
| 784 |
[CC_OP_SUBL] = { compute_all_subl, compute_c_subl },
|
|
| 785 |
|
|
| 786 |
[CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb },
|
|
| 787 |
[CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw },
|
|
| 788 |
[CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl },
|
|
| 789 |
|
|
| 790 |
[CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
|
|
| 791 |
[CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
|
|
| 792 |
[CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
|
|
| 793 |
|
|
| 794 |
[CC_OP_INCB] = { compute_all_incb, compute_c_incl },
|
|
| 795 |
[CC_OP_INCW] = { compute_all_incw, compute_c_incl },
|
|
| 796 |
[CC_OP_INCL] = { compute_all_incl, compute_c_incl },
|
|
| 797 |
|
|
| 798 |
[CC_OP_DECB] = { compute_all_decb, compute_c_incl },
|
|
| 799 |
[CC_OP_DECW] = { compute_all_decw, compute_c_incl },
|
|
| 800 |
[CC_OP_DECL] = { compute_all_decl, compute_c_incl },
|
|
| 801 |
|
|
| 802 |
[CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
|
|
| 803 |
[CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
|
|
| 804 |
[CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
|
|
| 805 |
|
|
| 806 |
[CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
|
|
| 807 |
[CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
|
|
| 808 |
[CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
|
|
| 809 |
|
|
| 810 |
#ifdef TARGET_X86_64 |
|
| 811 |
[CC_OP_MULQ] = { compute_all_mulq, compute_c_mull },
|
|
| 812 |
|
|
| 813 |
[CC_OP_ADDQ] = { compute_all_addq, compute_c_addq },
|
|
| 814 |
|
|
| 815 |
[CC_OP_ADCQ] = { compute_all_adcq, compute_c_adcq },
|
|
| 816 |
|
|
| 817 |
[CC_OP_SUBQ] = { compute_all_subq, compute_c_subq },
|
|
| 818 |
|
|
| 819 |
[CC_OP_SBBQ] = { compute_all_sbbq, compute_c_sbbq },
|
|
| 820 |
|
|
| 821 |
[CC_OP_LOGICQ] = { compute_all_logicq, compute_c_logicq },
|
|
| 822 |
|
|
| 823 |
[CC_OP_INCQ] = { compute_all_incq, compute_c_incl },
|
|
| 824 |
|
|
| 825 |
[CC_OP_DECQ] = { compute_all_decq, compute_c_incl },
|
|
| 826 |
|
|
| 827 |
[CC_OP_SHLQ] = { compute_all_shlq, compute_c_shlq },
|
|
| 828 |
|
|
| 829 |
[CC_OP_SARQ] = { compute_all_sarq, compute_c_sarl },
|
|
| 830 |
#endif |
|
| 831 |
}; |
|
| 832 |
|
|
| 833 | 755 |
void OPPROTO op_fcomi_dummy(void) |
| 834 | 756 |
{
|
| 835 | 757 |
T0 = 0; |
| b/target-i386/ops_template.h | ||
|---|---|---|
| 51 | 51 |
#error unhandled operand size |
| 52 | 52 |
#endif |
| 53 | 53 |
|
| 54 |
/* dynamic flags computation */ |
|
| 55 |
|
|
| 56 |
static int glue(compute_all_add, SUFFIX)(void) |
|
| 57 |
{
|
|
| 58 |
int cf, pf, af, zf, sf, of; |
|
| 59 |
target_long src1, src2; |
|
| 60 |
src1 = CC_SRC; |
|
| 61 |
src2 = CC_DST - CC_SRC; |
|
| 62 |
cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; |
|
| 63 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 64 |
af = (CC_DST ^ src1 ^ src2) & 0x10; |
|
| 65 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 66 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 67 |
of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
|
| 68 |
return cf | pf | af | zf | sf | of; |
|
| 69 |
} |
|
| 70 |
|
|
| 71 |
static int glue(compute_c_add, SUFFIX)(void) |
|
| 72 |
{
|
|
| 73 |
int cf; |
|
| 74 |
target_long src1; |
|
| 75 |
src1 = CC_SRC; |
|
| 76 |
cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; |
|
| 77 |
return cf; |
|
| 78 |
} |
|
| 79 |
|
|
| 80 |
static int glue(compute_all_adc, SUFFIX)(void) |
|
| 81 |
{
|
|
| 82 |
int cf, pf, af, zf, sf, of; |
|
| 83 |
target_long src1, src2; |
|
| 84 |
src1 = CC_SRC; |
|
| 85 |
src2 = CC_DST - CC_SRC - 1; |
|
| 86 |
cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; |
|
| 87 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 88 |
af = (CC_DST ^ src1 ^ src2) & 0x10; |
|
| 89 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 90 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 91 |
of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
|
| 92 |
return cf | pf | af | zf | sf | of; |
|
| 93 |
} |
|
| 94 |
|
|
| 95 |
static int glue(compute_c_adc, SUFFIX)(void) |
|
| 96 |
{
|
|
| 97 |
int cf; |
|
| 98 |
target_long src1; |
|
| 99 |
src1 = CC_SRC; |
|
| 100 |
cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; |
|
| 101 |
return cf; |
|
| 102 |
} |
|
| 103 |
|
|
| 104 |
static int glue(compute_all_sub, SUFFIX)(void) |
|
| 105 |
{
|
|
| 106 |
int cf, pf, af, zf, sf, of; |
|
| 107 |
target_long src1, src2; |
|
| 108 |
src1 = CC_DST + CC_SRC; |
|
| 109 |
src2 = CC_SRC; |
|
| 110 |
cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; |
|
| 111 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 112 |
af = (CC_DST ^ src1 ^ src2) & 0x10; |
|
| 113 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 114 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 115 |
of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
|
| 116 |
return cf | pf | af | zf | sf | of; |
|
| 117 |
} |
|
| 118 |
|
|
| 119 |
static int glue(compute_c_sub, SUFFIX)(void) |
|
| 120 |
{
|
|
| 121 |
int cf; |
|
| 122 |
target_long src1, src2; |
|
| 123 |
src1 = CC_DST + CC_SRC; |
|
| 124 |
src2 = CC_SRC; |
|
| 125 |
cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; |
|
| 126 |
return cf; |
|
| 127 |
} |
|
| 128 |
|
|
| 129 |
static int glue(compute_all_sbb, SUFFIX)(void) |
|
| 130 |
{
|
|
| 131 |
int cf, pf, af, zf, sf, of; |
|
| 132 |
target_long src1, src2; |
|
| 133 |
src1 = CC_DST + CC_SRC + 1; |
|
| 134 |
src2 = CC_SRC; |
|
| 135 |
cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; |
|
| 136 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 137 |
af = (CC_DST ^ src1 ^ src2) & 0x10; |
|
| 138 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 139 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 140 |
of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
|
| 141 |
return cf | pf | af | zf | sf | of; |
|
| 142 |
} |
|
| 143 |
|
|
| 144 |
static int glue(compute_c_sbb, SUFFIX)(void) |
|
| 145 |
{
|
|
| 146 |
int cf; |
|
| 147 |
target_long src1, src2; |
|
| 148 |
src1 = CC_DST + CC_SRC + 1; |
|
| 149 |
src2 = CC_SRC; |
|
| 150 |
cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; |
|
| 151 |
return cf; |
|
| 152 |
} |
|
| 153 |
|
|
| 154 |
static int glue(compute_all_logic, SUFFIX)(void) |
|
| 155 |
{
|
|
| 156 |
int cf, pf, af, zf, sf, of; |
|
| 157 |
cf = 0; |
|
| 158 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 159 |
af = 0; |
|
| 160 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 161 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 162 |
of = 0; |
|
| 163 |
return cf | pf | af | zf | sf | of; |
|
| 164 |
} |
|
| 165 |
|
|
| 166 |
static int glue(compute_c_logic, SUFFIX)(void) |
|
| 167 |
{
|
|
| 168 |
return 0; |
|
| 169 |
} |
|
| 170 |
|
|
| 171 |
static int glue(compute_all_inc, SUFFIX)(void) |
|
| 172 |
{
|
|
| 173 |
int cf, pf, af, zf, sf, of; |
|
| 174 |
target_long src1, src2; |
|
| 175 |
src1 = CC_DST - 1; |
|
| 176 |
src2 = 1; |
|
| 177 |
cf = CC_SRC; |
|
| 178 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 179 |
af = (CC_DST ^ src1 ^ src2) & 0x10; |
|
| 180 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 181 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 182 |
of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11; |
|
| 183 |
return cf | pf | af | zf | sf | of; |
|
| 184 |
} |
|
| 185 |
|
|
| 186 |
#if DATA_BITS == 32 |
|
| 187 |
static int glue(compute_c_inc, SUFFIX)(void) |
|
| 188 |
{
|
|
| 189 |
return CC_SRC; |
|
| 190 |
} |
|
| 191 |
#endif |
|
| 192 |
|
|
| 193 |
static int glue(compute_all_dec, SUFFIX)(void) |
|
| 194 |
{
|
|
| 195 |
int cf, pf, af, zf, sf, of; |
|
| 196 |
target_long src1, src2; |
|
| 197 |
src1 = CC_DST + 1; |
|
| 198 |
src2 = 1; |
|
| 199 |
cf = CC_SRC; |
|
| 200 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 201 |
af = (CC_DST ^ src1 ^ src2) & 0x10; |
|
| 202 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 203 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 204 |
of = ((CC_DST & DATA_MASK) == ((target_ulong)SIGN_MASK - 1)) << 11; |
|
| 205 |
return cf | pf | af | zf | sf | of; |
|
| 206 |
} |
|
| 207 |
|
|
| 208 |
static int glue(compute_all_shl, SUFFIX)(void) |
|
| 209 |
{
|
|
| 210 |
int cf, pf, af, zf, sf, of; |
|
| 211 |
cf = (CC_SRC >> (DATA_BITS - 1)) & CC_C; |
|
| 212 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 213 |
af = 0; /* undefined */ |
|
| 214 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 215 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 216 |
/* of is defined if shift count == 1 */ |
|
| 217 |
of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O; |
|
| 218 |
return cf | pf | af | zf | sf | of; |
|
| 219 |
} |
|
| 220 |
|
|
| 221 |
static int glue(compute_c_shl, SUFFIX)(void) |
|
| 222 |
{
|
|
| 223 |
return (CC_SRC >> (DATA_BITS - 1)) & CC_C; |
|
| 224 |
} |
|
| 225 |
|
|
| 226 |
#if DATA_BITS == 32 |
|
| 227 |
static int glue(compute_c_sar, SUFFIX)(void) |
|
| 228 |
{
|
|
| 229 |
return CC_SRC & 1; |
|
| 230 |
} |
|
| 231 |
#endif |
|
| 232 |
|
|
| 233 |
static int glue(compute_all_sar, SUFFIX)(void) |
|
| 234 |
{
|
|
| 235 |
int cf, pf, af, zf, sf, of; |
|
| 236 |
cf = CC_SRC & 1; |
|
| 237 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 238 |
af = 0; /* undefined */ |
|
| 239 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 240 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 241 |
/* of is defined if shift count == 1 */ |
|
| 242 |
of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O; |
|
| 243 |
return cf | pf | af | zf | sf | of; |
|
| 244 |
} |
|
| 245 |
|
|
| 246 |
#if DATA_BITS == 32 |
|
| 247 |
static int glue(compute_c_mul, SUFFIX)(void) |
|
| 248 |
{
|
|
| 249 |
int cf; |
|
| 250 |
cf = (CC_SRC != 0); |
|
| 251 |
return cf; |
|
| 252 |
} |
|
| 253 |
#endif |
|
| 254 |
|
|
| 255 |
/* NOTE: we compute the flags like the P4. On olders CPUs, only OF and |
|
| 256 |
CF are modified and it is slower to do that. */ |
|
| 257 |
static int glue(compute_all_mul, SUFFIX)(void) |
|
| 258 |
{
|
|
| 259 |
int cf, pf, af, zf, sf, of; |
|
| 260 |
cf = (CC_SRC != 0); |
|
| 261 |
pf = parity_table[(uint8_t)CC_DST]; |
|
| 262 |
af = 0; /* undefined */ |
|
| 263 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
|
| 264 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
|
| 265 |
of = cf << 11; |
|
| 266 |
return cf | pf | af | zf | sf | of; |
|
| 267 |
} |
|
| 268 |
|
|
| 269 | 54 |
/* various optimized jumps cases */ |
| 270 | 55 |
|
| 271 | 56 |
void OPPROTO glue(op_jb_sub, SUFFIX)(void) |
Also available in: Unified diff