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Rewrote the recompiler interrupt checking in assembly (and removed it for the new dynamic compiler because the requires uops are not present), brings performance back up, and also did a number of CPU-related clean-ups (mostly removal of dead variables and associated code).

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This commit is contained in:
OBattler
2020-07-13 19:46:19 +02:00
parent 0cd0d83cee
commit a862bda04c
32 changed files with 196 additions and 291 deletions
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46
src/codegen/codegen_accumulate_x86.c
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@@ -13,7 +13,6 @@ static struct
uintptr_t dest_reg;
} acc_regs[] =
{
[ACCREG_ins] = {0, (uintptr_t) &(ins)},
[ACCREG_cycles] = {0, (uintptr_t) &(cycles)}
};
@@ -22,35 +21,38 @@ void codegen_accumulate(int acc_reg, int delta)
acc_regs[acc_reg].count += delta;
if ((acc_reg == ACCREG_cycles) && (delta != 0)) {
addbyte(0x81); /*ADD $acc_regs[c].count,acc_regs[c].dest*/
addbyte(0x05);
addlong((uint32_t) (uintptr_t) &(acycs));
addlong((uintptr_t) -delta);
if (delta == -1) {
/* -delta = 1 */
addbyte(0xff); /*inc dword ptr[&acycs]*/
addbyte(0x05);
addlong((uint32_t) (uintptr_t) &(acycs));
} else if (delta == 1) {
/* -delta = -1 */
addbyte(0xff); /*dec dword ptr[&acycs]*/
addbyte(0x0d);
addlong((uint32_t) (uintptr_t) &(acycs));
} else {
addbyte(0x81); /*ADD $acc_regs[c].count,acc_regs[c].dest*/
addbyte(0x05);
addlong((uint32_t) (uintptr_t) &(acycs));
addlong((uintptr_t) -delta);
}
}
}
void codegen_accumulate_flush(void)
{
int c;
for (c = 0; c < ACCREG_COUNT; c++)
{
if (acc_regs[c].count)
{
addbyte(0x81); /*ADD $acc_regs[c].count,acc_regs[c].dest*/
addbyte(0x05);
addlong((uint32_t) acc_regs[c].dest_reg);
addlong(acc_regs[c].count);
}
if (acc_regs[0].count) {
addbyte(0x81); /*ADD $acc_regs[0].count,acc_regs[0].dest*/
addbyte(0x05);
addlong((uint32_t) acc_regs[0].dest_reg);
addlong(acc_regs[0].count);
}
acc_regs[c].count = 0;
}
acc_regs[0].count = 0;
}
void codegen_accumulate_reset()
{
int c;
for (c = 0; c < ACCREG_COUNT; c++)
acc_regs[c].count = 0;
acc_regs[0].count = 0;
}