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|DYNAREC] Small optim on cmpxchg opcode

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This commit is contained in:
ptitSeb 2022-01-16 15:19:09 +01:00
parent 264c834c2c
commit 16b8657a47
1 changed files with 5 additions and 5 deletions
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10
src/dynarec/dynarec_arm_f0.c
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@ -642,7 +642,7 @@ uintptr_t dynarecF0(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int ninst,
MARK3;
DMB_ISH();
// done, do the cmp now
emit_cmp8(dyn, ninst, x1, x2, x3, x14);
UFLAG_IF {emit_cmp8(dyn, ninst, x1, x2, x3, x14);}
break;
case 0xB1:
INST_NAME("LOCK CMPXCHG Ed, Gd");
@ -683,16 +683,16 @@ uintptr_t dynarecF0(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int ninst,
TSTS_IMM8(wback, 3); // anoying, all those test
STR_IMM9_COND(cNE, gd, wback, 0);
}
emit_cmp32(dyn, ninst, xEAX, ed, x1, x14);
UFLAG_IF {emit_cmp32(dyn, ninst, xEAX, ed, x1, x14);}
} else {
emit_cmp32(dyn, ninst, xEAX, ed, x1, x14);
UFLAG_IF {emit_cmp32(dyn, ninst, xEAX, ed, x1, x14);}
MOV_REG(ed, gd);
}
// done
B_MARK3(c__); // not next, in case its called with a LOCK prefix
MARK;
// EAX != Ed
emit_cmp32(dyn, ninst, xEAX, ed, x3, x14);
UFLAG_IF {emit_cmp32(dyn, ninst, xEAX, ed, x3, x14);}
MOV_REG(xEAX, ed);
MARK3
DMB_ISH();
@ -952,8 +952,8 @@ uintptr_t dynarecF0(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int ninst,
if(!fixedaddress || (fixedaddress && (fixedaddress&7))) {
TSTS_IMM8(wback, 7);
LDREXD_COND(cEQ, x2, wback);
LDREX_COND(cNE, x2, wback);
LDR_IMM9_COND(cNE, x3, wback, 4);
LDREX_COND(cNE, x2, wback);
} else {
LDREXD(x2, wback);
}