diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/dynarec/arm64/dynarec_arm64_f0.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/dynarec/arm64/dynarec_arm64_f0.c b/src/dynarec/arm64/dynarec_arm64_f0.c index 5c239f91..ed5af05a 100644 --- a/src/dynarec/arm64/dynarec_arm64_f0.c +++ b/src/dynarec/arm64/dynarec_arm64_f0.c @@ -910,6 +910,57 @@ uintptr_t dynarec64_F0(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int nin } break; + case 0x31: + INST_NAME("LOCK XOR Ed, Gd"); + SETFLAGS(X_ALL, SF_SET_PENDING); + nextop = F8; + GETGD; + if((nextop&0xC0)==0xC0) { + ed = xRAX+(nextop&7)+(rex.b<<3); + emit_xor32(dyn, ninst, rex, ed, gd, x3, x4); + } else { + addr = geted(dyn, addr, ninst, nextop, &wback, x2, &fixedaddress, NULL, 0, 0, rex, LOCK_LOCK, 0, 0); + if(!ALIGNED_ATOMICxw) { + if(arm64_uscat) { + ANDx_mask(x1, wback, 1, 0, 3); // mask = F + CMPSw_U12(x1, 16-(1<<(2+rex.w))); + B_MARK(cGT); + } else { + TSTx_mask(wback, 1, 0, 1+rex.w); // mask=3 or 7 + B_MARK(cNE); + } + } + if(arm64_atomics) { + UFLAG_IF { + LDEORALxw(gd, x1, wback); + emit_xor32(dyn, ninst, rex, x1, gd, x3, x4); + } else { + STEORLxw(gd, wback); + } + SMDMB(); + } else { + MARKLOCK; + LDAXRxw(x1, wback); + emit_xor32(dyn, ninst, rex, x1, gd, x3, x4); + STLXRxw(x3, x1, wback); + CBNZx_MARKLOCK(x3); + SMDMB(); + } + if(!ALIGNED_ATOMICxw) { + B_NEXT_nocond; + MARK; // unaligned! also, not enough + LDRxw_U12(x1, wback, 0); + LDAXRB(x4, wback); + BFIxw(x1, x4, 0, 8); // re-inject + emit_xor32(dyn, ninst, rex, x1, gd, x3, x4); + STLXRB(x3, x1, wback); + CBNZx_MARK(x3); + STRxw_U12(x1, wback, 0); // put the whole value + SMDMB(); + } + } + break; + case 0x66: return dynarec64_66F0(dyn, addr, ip, ninst, rex, rep, ok, need_epilog); |