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[LA64_DYNAREC] Add optional x87 raw long double compare #4142

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[LA64_DYNAREC] Add optional x87 raw long double compare #4142

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17 changes: 17 additions & 0 deletions src/dynarec/la64/dynarec_la64_d9.c
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,9 @@ uintptr_t dynarec64_D9(dynarec_la64_t* dyn, uintptr_t addr, uintptr_t ip, int ni
// swap the cache value, not the double value itself :p
x87_get_st(dyn, ninst, x1, x2, nextop & 7, X87_ST(nextop & 7));
x87_get_st(dyn, ninst, x1, x2, 0, X87_ST0);
if (!BOX64ENV(dynarec_fastround)) {
x87_swap_fpu_ld(dyn, ninst, x1, x2, x3, x4, 0, nextop & 7);
}
x87_swapreg(dyn, ninst, x1, x2, 0, nextop & 7);
// should set C1 to 0
break;
Expand All @@ -92,7 +95,14 @@ uintptr_t dynarec64_D9(dynarec_la64_t* dyn, uintptr_t addr, uintptr_t ip, int ni
if (ST_IS_F(0)) {
FNEG_S(v1, v1);
} else {
if (!BOX64ENV(dynarec_fastround)) {
MOVFR2GR_D(x2, v1); // old ST0.q
}
FNEG_D(v1, v1);
if (!BOX64ENV(dynarec_fastround)) {
MOVFR2GR_D(x3, v1); // new ST0.q
x87_update_fpu_ld_sign(dyn, ninst, x1, x4, x5, x2, x3, 0, 1);
}
}
break;
case 0xE1:
Expand All @@ -101,7 +111,14 @@ uintptr_t dynarec64_D9(dynarec_la64_t* dyn, uintptr_t addr, uintptr_t ip, int ni
if (ST_IS_F(0)) {
FABS_S(v1, v1);
} else {
if (!BOX64ENV(dynarec_fastround)) {
MOVFR2GR_D(x2, v1); // old ST0.q
}
FABS_D(v1, v1);
if (!BOX64ENV(dynarec_fastround)) {
MOVFR2GR_D(x3, v1); // new ST0.q
x87_update_fpu_ld_sign(dyn, ninst, x1, x4, x5, x2, x3, 0, 0);
}
}
break;

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19 changes: 18 additions & 1 deletion src/dynarec/la64/dynarec_la64_db.c
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Original file line number Diff line number Diff line change
Expand Up @@ -123,23 +123,40 @@ uintptr_t dynarec64_DB(dynarec_la64_t* dyn, uintptr_t addr, uintptr_t ip, int ni
SETFLAGS(X_ALL, SF_SET_NODF, NAT_FLAGS_NOFUSION);
v1 = x87_get_st(dyn, ninst, x1, x2, 0, X87_COMBINE(0, nextop & 7));
v2 = x87_get_st(dyn, ninst, x1, x2, nextop & 7, X87_COMBINE(0, nextop & 7));
if (!BOX64ENV(dynarec_fastround)) {
MOVFR2GR_D(x6, v1);
MOVFR2GR_D(x7, v2);
x87_fcomi_fpu_ld(dyn, ninst, x1, x2, x3, x4, x5, x6, x7, nextop & 7);
BNEZ_MARK(x1);
}
if (ST_IS_F(0)) {
FCOMIS(v1, v2, x1, x2);
} else {
FCOMID(v1, v2, x1, x2);
}

if (!BOX64ENV(dynarec_fastround)) {
MARK;
}
break;
case 0xF0 ... 0xF7:
INST_NAME("FCOMI ST0, STx");
SETFLAGS(X_ALL, SF_SET_NODF, NAT_FLAGS_NOFUSION);
v1 = x87_get_st(dyn, ninst, x1, x2, 0, X87_COMBINE(0, nextop & 7));
v2 = x87_get_st(dyn, ninst, x1, x2, nextop & 7, X87_COMBINE(0, nextop & 7));
if (!BOX64ENV(dynarec_fastround)) {
MOVFR2GR_D(x6, v1);
MOVFR2GR_D(x7, v2);
x87_fcomi_fpu_ld(dyn, ninst, x1, x2, x3, x4, x5, x6, x7, nextop & 7);
BNEZ_MARK(x1);
}
if (ST_IS_F(0)) {
FCOMIS(v1, v2, x1, x2);
} else {
FCOMID(v1, v2, x1, x2);
}
if (!BOX64ENV(dynarec_fastround)) {
MARK;
}
break;
default:
DEFAULT;
Expand Down
9 changes: 9 additions & 0 deletions src/dynarec/la64/dynarec_la64_df.c
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Original file line number Diff line number Diff line change
Expand Up @@ -91,11 +91,20 @@ uintptr_t dynarec64_DF(dynarec_la64_t* dyn, uintptr_t addr, uintptr_t ip, int ni
SET_DFNONE();
v1 = x87_get_st(dyn, ninst, x1, x2, 0, X87_COMBINE(0, nextop & 7));
v2 = x87_get_st(dyn, ninst, x1, x2, nextop & 7, X87_COMBINE(0, nextop & 7));
if (!BOX64ENV(dynarec_fastround)) {
MOVFR2GR_D(x6, v1);
MOVFR2GR_D(x7, v2);
x87_fcomi_fpu_ld(dyn, ninst, x1, x2, x3, x4, x5, x6, x7, nextop & 7);
BNEZ_MARK(x1);
}
if (ST_IS_F(0)) {
FCOMIS(v1, v2, x1, x2);
} else {
FCOMID(v1, v2, x1, x2);
}
if (!BOX64ENV(dynarec_fastround)) {
MARK;
}
X87_POP_OR_FAIL(dyn, ninst, x3);
break;
default:
Expand Down
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