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PI fixes and various smaller fixes

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SimoneN64
2024-01-04 02:03:52 +01:00
parent d7a94b41e0
commit 57a079392e
8 changed files with 63 additions and 56 deletions
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22
src/backend/core/registers/cop/cop1instructions.cpp
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@@ -121,7 +121,7 @@ void Cop1::SetCauseInvalid() {
#define PUSHROUNDING int orig_round = PushRoundingMode(fcr31)
#define POPROUNDING fesetround(orig_round)
#define OP_CheckExcept(op) do { PUSHROUNDING; feclearexcept(FE_ALL_EXCEPT); op; SetFPUCauseRaised(regs, fetestexcept(FE_ALL_EXCEPT)); POPROUNDING; } while(0)
#define OP_CheckExcept(op) do { feclearexcept(FE_ALL_EXCEPT); PUSHROUNDING; op; SetFPUCauseRaised(regs, fetestexcept(FE_ALL_EXCEPT)); POPROUNDING; } while(0)
#define CVT_OP_CheckExcept(op) do { feclearexcept(FE_ALL_EXCEPT); op; SetFPUCauseCVTRaised(regs, fetestexcept(FE_ALL_EXCEPT)); CheckFPUException(); } while(0)
#define OP(T, op) do { \
@@ -138,7 +138,8 @@ void Cop1::SetCauseInvalid() {
template <typename T>
FORCE_INLINE void SetCauseByArgWCVT(Registers& regs, T f) {
switch (std::fpclassify(f)) {
regs.cop1.fp_class = std::fpclassify(f);
switch (regs.cop1.fp_class) {
case FP_NAN:
case FP_INFINITE:
case FP_SUBNORMAL:
@@ -161,7 +162,8 @@ FORCE_INLINE void SetCauseByArgWCVT(Registers& regs, T f) {
template <typename T>
FORCE_INLINE void SetCauseByArgLCVT(Registers& regs, T f) {
switch (std::fpclassify(f)) {
regs.cop1.fp_class = std::fpclassify(f);
switch (regs.cop1.fp_class) {
case FP_NAN:
case FP_INFINITE:
case FP_SUBNORMAL:
@@ -190,7 +192,7 @@ FORCE_INLINE void SetFPUCauseRaised(Registers& regs, int raised) {
return;
}
if (raised & FE_UNDERFLOW) {
if (((raised & FE_UNDERFLOW) != 0) || regs.cop1.fp_class == FP_SUBNORMAL) {
if (!regs.cop1.fcr31.fs || regs.cop1.fcr31.enable_underflow || regs.cop1.fcr31.enable_inexact_operation) {
regs.cop1.SetCauseUnimplemented();
return;
@@ -245,8 +247,8 @@ FORCE_INLINE bool isqnan(T f) {
template <typename T>
FORCE_INLINE void SetCauseByArg(Registers& regs, T f) {
int c = std::fpclassify(f);
switch(c) {
regs.cop1.fp_class = std::fpclassify(f);
switch(regs.cop1.fp_class) {
case FP_NAN:
if(isqnan(f)) {
regs.cop1.SetCauseInvalid();
@@ -265,7 +267,7 @@ FORCE_INLINE void SetCauseByArg(Registers& regs, T f) {
case FP_NORMAL:
break; // No-op, these are fine.
default:
Util::panic("Unknown floating point classification: {}", c);
Util::panic("Unknown floating point classification: {}", regs.cop1.fp_class);
}
}
@@ -274,7 +276,7 @@ FORCE_INLINE void SetCauseByArg(Registers& regs, T f) {
template <typename T>
FORCE_INLINE void SetCauseOnResult(Registers& regs, T& d) {
Cop1& cop1 = regs.cop1;
int classification = std::fpclassify(d);
regs.cop1.fp_class = std::fpclassify(d);
T magic, min;
if constexpr(std::is_same_v<T, float>) {
u32 c = 0x7FBFFFFF;
@@ -285,7 +287,7 @@ FORCE_INLINE void SetCauseOnResult(Registers& regs, T& d) {
magic = U64_TO_D(c);
min = DBL_MIN;
}
switch (classification) {
switch (regs.cop1.fp_class) {
case FP_NAN:
d = magic; // set result to sNAN
break;
@@ -324,7 +326,7 @@ FORCE_INLINE void SetCauseOnResult(Registers& regs, T& d) {
case FP_NORMAL:
break; // No-op, these are fine.
default:
Util::panic("Unknown FP classification: {}", classification);
Util::panic("Unknown FP classification: {}", regs.cop1.fp_class);
}
}