diff options
| author | ptitSeb <sebastien.chev@gmail.com> | 2023-03-13 23:26:35 +0100 |
|---|---|---|
| committer | ptitSeb <sebastien.chev@gmail.com> | 2023-03-13 23:26:35 +0100 |
| commit | 602142dc4511ea4fef4f2e496464ddcd9c33c87b (patch) | |
| tree | 6a6bae21305323da34c09b6562427bedf2ec373d | |
| parent | a4b6e9985895ea31a23090d396425ed2ce8220a3 (diff) | |
| download | box64-602142dc4511ea4fef4f2e496464ddcd9c33c87b.tar.gz box64-602142dc4511ea4fef4f2e496464ddcd9c33c87b.zip | |
[ARM64_DYNAREC] Small optim when putting 0 in a memory location
| -rwxr-xr-x | src/dynarec/arm64/dynarec_arm64_00.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/src/dynarec/arm64/dynarec_arm64_00.c b/src/dynarec/arm64/dynarec_arm64_00.c index 5385916d..e56f3572 100755 --- a/src/dynarec/arm64/dynarec_arm64_00.c +++ b/src/dynarec/arm64/dynarec_arm64_00.c @@ -1711,10 +1711,14 @@ uintptr_t dynarec64_00(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int nin MOV32w(x3, u8); BFIx(eb1, x3, eb2*8, 8); } else { // mem <= u8 - addr = geted(dyn, addr, ninst, nextop, &ed, x1, &fixedaddress, &unscaled, 0xfff, 0, rex, &lock, 0, 1); + addr = geted(dyn, addr, ninst, nextop, &wback, x1, &fixedaddress, &unscaled, 0xfff, 0, rex, &lock, 0, 1); u8 = F8; - MOV32w(x3, u8); - STB(x3, ed, fixedaddress); + if(u8) { + MOV32w(x3, u8); + ed = x3; + } else + ed = xZR; + STB(ed, wback, fixedaddress); SMWRITELOCK(lock); } break; @@ -1726,10 +1730,14 @@ uintptr_t dynarec64_00(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int nin ed = xRAX+(nextop&7)+(rex.b<<3); MOV64xw(ed, i64); } else { // mem <= i32 - addr = geted(dyn, addr, ninst, nextop, &ed, x2, &fixedaddress, &unscaled, 0xfff<<(2+rex.w), (1<<(2+rex.w))-1, rex, &lock, 0, 4); + addr = geted(dyn, addr, ninst, nextop, &wback, x2, &fixedaddress, &unscaled, 0xfff<<(2+rex.w), (1<<(2+rex.w))-1, rex, &lock, 0, 4); i64 = F32S; - MOV64xw(x3, i64); - STxw(x3, ed, fixedaddress); + if(i64) { + MOV64xw(x3, i64); + ed = x3; + } else + ed = xZR; + STxw(ed, wback, fixedaddress); SMWRITELOCK(lock); } break; |