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[ARM] fctiwx implementation.

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This commit is contained in:
Ryan Houdek 2013-09-24 20:37:10 +00:00
parent 482170c3ea
commit 94a731b49d
3 changed files with 109 additions and 1 deletions
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1
Source/Core/Core/Src/PowerPC/JitArm32/Jit.h
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@ -210,6 +210,7 @@ public:
void fmrx(UGeckoInstruction _inst);
void fmaddsx(UGeckoInstruction _inst);
void fmaddx(UGeckoInstruction _inst);
void fctiwx(UGeckoInstruction _inst);
void fctiwzx(UGeckoInstruction _inst);
void fcmpo(UGeckoInstruction _inst);
void fcmpu(UGeckoInstruction _inst);

107
Source/Core/Core/Src/PowerPC/JitArm32/JitArm_FloatingPoint.cpp
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@ -38,6 +38,113 @@ void JitArm::Helper_UpdateCR1(ARMReg value)
PanicAlert("CR1");
}
void JitArm::fctiwx(UGeckoInstruction inst)
{
INSTRUCTION_START
JITDISABLE(bJITFloatingPointOff)
u32 b = inst.FB;
u32 d = inst.FD;
ARMReg vB = fpr.R0(b);
ARMReg vD = fpr.R0(d);
ARMReg V0 = fpr.GetReg();
ARMReg V1 = fpr.GetReg();
ARMReg V2 = fpr.GetReg();
ARMReg rA = gpr.GetReg();
ARMReg fpscrReg = gpr.GetReg();
FixupBranch DoneMax, DoneMin;
LDR(fpscrReg, R9, PPCSTATE_OFF(fpscr));
MOVI2R(rA, (u32)minmaxFloat);
// Check if greater than max float
{
VLDR(V0, rA, 8); // Load Max
VCMPE(vB, V0);
VMRS(_PC); // Loads in to APSR
FixupBranch noException = B_CC(CC_LE);
VMOV(vD, V0); // Set to max
SetFPException(fpscrReg, FPSCR_VXCVI);
DoneMax = B();
SetJumpTarget(noException);
}
// Check if less than min float
{
VLDR(V0, rA, 0);
VCMPE(vB, V0);
VMRS(_PC);
FixupBranch noException = B_CC(CC_GE);
VMOV(vD, V0);
SetFPException(fpscrReg, FPSCR_VXCVI);
DoneMin = B();
SetJumpTarget(noException);
}
// Within ranges, convert to integer
// Set rounding mode first
// PPC <-> ARM rounding modes
// 0, 1, 2, 3 <-> 0, 3, 1, 2
ARMReg rB = gpr.GetReg();
VMRS(rA);
// Bits 22-23
BIC(rA, rA, Operand2(3, 5));
LDR(rB, R9, PPCSTATE_OFF(fpscr));
AND(rB, rB, 0x3); // Get the FPSCR rounding bits
CMP(rB, 1);
SetCC(CC_EQ); // zero
ORR(rA, rA, Operand2(3, 5));
SetCC(CC_NEQ);
CMP(rB, 2); // +inf
SetCC(CC_EQ);
ORR(rA, rA, Operand2(1, 5));
SetCC(CC_NEQ);
CMP(rB, 3); // -inf
SetCC(CC_EQ);
ORR(rA, rA, Operand2(2, 5));
SetCC();
VMSR(rA);
ORR(rA, rA, Operand2(3, 5));
VCVT(vD, vB, TO_INT | IS_SIGNED);
VMSR(rA);
gpr.Unlock(rB);
VCMPE(vD, vB);
VMRS(_PC);
SetCC(CC_EQ);
BIC(fpscrReg, fpscrReg, FRFIMask);
FixupBranch DoneEqual = B();
SetCC();
SetFPException(fpscrReg, FPSCR_XX);
ORR(fpscrReg, fpscrReg, FIMask);
VABS(V1, vB);
VABS(V2, vD);
VCMPE(V2, V1);
VMRS(_PC);
SetCC(CC_GT);
ORR(fpscrReg, fpscrReg, FRMask);
SetCC();
SetJumpTarget(DoneEqual);
SetJumpTarget(DoneMax);
SetJumpTarget(DoneMin);
MOVI2R(rA, (u32)&doublenum);
VLDR(V0, rA, 0);
NEONXEmitter nemit(this);
nemit.VORR(vD, vD, V0);
if (inst.Rc) Helper_UpdateCR1(vD);
STR(fpscrReg, R9, PPCSTATE_OFF(fpscr));
gpr.Unlock(rA);
gpr.Unlock(fpscrReg);
fpr.Unlock(V0);
fpr.Unlock(V1);
fpr.Unlock(V2);
}
void JitArm::fctiwzx(UGeckoInstruction inst)
{
INSTRUCTION_START

2
Source/Core/Core/Src/PowerPC/JitArm32/JitArm_Tables.cpp
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@ -349,7 +349,7 @@ static GekkoOPTemplate table63[] =
{264, &JitArm::fabsx}, //"fabsx", OPTYPE_FPU, FL_RC_BIT_F}},
{32, &JitArm::fcmpo}, //"fcmpo", OPTYPE_FPU, FL_RC_BIT_F}},
{0, &JitArm::fcmpu}, //"fcmpu", OPTYPE_FPU, FL_RC_BIT_F}},
{14, &JitArm::Default}, //"fctiwx", OPTYPE_FPU, FL_RC_BIT_F}},
{14, &JitArm::fctiwx}, //"fctiwx", OPTYPE_FPU, FL_RC_BIT_F}},
{15, &JitArm::fctiwzx}, //"fctiwzx", OPTYPE_FPU, FL_RC_BIT_F}},
{72, &JitArm::fmrx}, //"fmrx", OPTYPE_FPU, FL_RC_BIT_F}},
{136, &JitArm::fnabsx}, //"fnabsx", OPTYPE_FPU, FL_RC_BIT_F}},