diff options
| -rwxr-xr-x | src/dynarec/dynarec_arm64_f30f.c | 14 | ||||
| -rw-r--r-- | src/emu/x64runf30f.c | 18 |
2 files changed, 32 insertions, 0 deletions
diff --git a/src/dynarec/dynarec_arm64_f30f.c b/src/dynarec/dynarec_arm64_f30f.c index b8479d5c..8c87b790 100755 --- a/src/dynarec/dynarec_arm64_f30f.c +++ b/src/dynarec/dynarec_arm64_f30f.c @@ -363,6 +363,20 @@ uintptr_t dynarec64_F30F(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int n CSETw(x1, cEQ); BFIw(xFlags, x1, F_ZF, 1); // ZF = is dest 0? break; + case 0xBD: + INST_NAME("LZCNT Gd, Ed"); + SETFLAGS(X_CF|X_ZF, SF_SUBSET); + SET_DFNONE(x1); + nextop = F8; + GETED(0); + GETGD; + TSTxw_REG(ed, ed); + BFIw(xFlags, x1, F_CF, 1); // CF = is source 0? + CLZxw(gd, x1); // x2 gets leading 0 == LZCNT + TSTxw_REG(gd, gd); + CSETw(x1, cEQ); + BFIw(xFlags, x1, F_ZF, 1); // ZF = is dest 0? + break; case 0xC2: INST_NAME("CMPSS Gx, Ex, Ib"); diff --git a/src/emu/x64runf30f.c b/src/emu/x64runf30f.c index a5e02d59..1960238e 100644 --- a/src/emu/x64runf30f.c +++ b/src/emu/x64runf30f.c @@ -291,6 +291,24 @@ int RunF30F(x64emu_t *emu, rex_t rex) } } break; + case 0xBD: /* LZCNT Ed,Gd */ + CHECK_FLAGS(emu); + nextop = F8; + GETED(0); + GETGD; + if(rex.w) { + tmp64u = ED->q[0]; + tmp8u = (tmp64u)?__builtin_clzl(tmp64u):64; + CONDITIONAL_SET_FLAG(tmp8u==0, F_ZF); + CONDITIONAL_SET_FLAG(tmp8u==64, F_CF); + } else { + tmp32u = ED->dword[0]; + tmp8u = (tmp32u)?__builtin_clz(tmp32u):32; + CONDITIONAL_SET_FLAG(tmp8u==0, F_ZF); + CONDITIONAL_SET_FLAG(tmp8u==32, F_CF); + } + GD->q[0] = tmp8u; + break; case 0xC2: /* CMPSS Gx, Ex, Ib */ nextop = F8; |