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JitArm64: Implement addex

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This commit is contained in:
degasus 2015-08-23 11:46:11 +02:00
parent 025e7c835a
commit 95be17772f
3 changed files with 58 additions and 2 deletions
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1
Source/Core/Core/PowerPC/JitArm64/Jit.h
View File

@ -101,6 +101,7 @@ public:
void rlwimix(UGeckoInstruction inst);
void subfex(UGeckoInstruction inst);
void subfcx(UGeckoInstruction inst);
void addex(UGeckoInstruction inst);
// System Registers
void mtmsr(UGeckoInstruction inst);

55
Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp
View File

@ -816,6 +816,61 @@ void JitArm64::subfcx(UGeckoInstruction inst)
}
}
void JitArm64::addex(UGeckoInstruction inst)
{
INSTRUCTION_START
JITDISABLE(bJITIntegerOff);
FALLBACK_IF(inst.OE);
int a = inst.RA, b = inst.RB, d = inst.RD;
if (gpr.IsImm(a) && gpr.IsImm(b))
{
u32 i = gpr.GetImm(a), j = gpr.GetImm(b);
gpr.BindToRegister(d, false);
MOVI2R(gpr.R(d), i + j);
ARM64Reg WA = gpr.GetReg();
LDRB(INDEX_UNSIGNED, WA, X29, PPCSTATE_OFF(xer_ca));
ADD(gpr.R(d), gpr.R(d), WA);
gpr.Unlock(WA);
bool must_have_carry = Interpreter::Helper_Carry(i, j);
bool might_have_carry = (i + j) == 0xFFFFFFFF;
if (must_have_carry)
{
ComputeCarry(true);
}
else if (might_have_carry)
{
// carry stay as it is
}
else
{
ComputeCarry(false);
}
}
else
{
gpr.BindToRegister(d, d == a || d == b);
// upload the carry state
ARM64Reg WA = gpr.GetReg();
LDRB(INDEX_UNSIGNED, WA, X29, PPCSTATE_OFF(xer_ca));
CMP(WA, 1);
gpr.Unlock(WA);
// d = a + b + carry;
ADCS(gpr.R(d), gpr.R(a), gpr.R(b));
ComputeCarry();
}
if (inst.Rc)
ComputeRC(gpr.R(d), 0);
}
void JitArm64::addcx(UGeckoInstruction inst)
{
INSTRUCTION_START

4
Source/Core/Core/PowerPC/JitArm64/JitArm64_Tables.cpp
View File

@ -174,8 +174,8 @@ static GekkoOPTemplate table31[] =
{778, &JitArm64::addx}, // addox
{10, &JitArm64::addcx}, // addcx
{522, &JitArm64::addcx}, // addcox
{138, &JitArm64::FallBackToInterpreter}, // addex
{650, &JitArm64::FallBackToInterpreter}, // addeox
{138, &JitArm64::addex}, // addex
{650, &JitArm64::addex}, // addeox
{234, &JitArm64::FallBackToInterpreter}, // addmex
{746, &JitArm64::FallBackToInterpreter}, // addmeox
{202, &JitArm64::addzex}, // addzex