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[Android] Add XorConstToArmReg

This commit is contained in:
zilmar 2016-10-01 10:36:40 +10:00
parent 25e2125a63
commit 25954e657e
2 changed files with 33 additions and 0 deletions
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32
Source/Project64-core/N64System/Recompiler/Arm/ArmOps.cpp
View File

@ -809,6 +809,38 @@ void CArmOps::TestVariable(uint32_t Const, void * Variable, const char * Variabl
CompareArmRegToArmReg(Arm_R2,Arm_R3);
}
void CArmOps::XorConstToArmReg(ArmReg DestReg, uint32_t value)
{
if (value == 0)
{
//ignore
}
else if (CanThumbCompressConst(value))
{
uint16_t CompressedValue = ThumbCompressConst(value);
CPU_Message(" eor\t%s, %s, #%d", ArmRegName(DestReg), ArmRegName(DestReg), value);
Arm32Opcode op = {0};
op.imm8_3_1.rn = DestReg;
op.imm8_3_1.s = 0;
op.imm8_3_1.opcode = 0x4;
op.imm8_3_1.i = (CompressedValue >> 11) & 1;
op.imm8_3_1.opcode2 = 0x1E;
op.imm8_3_1.imm8 = CompressedValue & 0xFF;
op.imm8_3_1.rd = DestReg;
op.imm8_3_1.imm3 = (CompressedValue >> 8) & 0x3;
op.imm8_3_1.opcode3 = 0;
AddCode32(op.Hex);
}
else
{
ArmReg TempReg = m_RegWorkingSet.Map_TempReg(Arm_Any, -1, false);
MoveConstToArmReg(TempReg,value);
XorArmRegToArmReg(DestReg, TempReg, DestReg);
m_RegWorkingSet.SetArmRegProtected(TempReg,false);
}
}
bool CArmOps::CanThumbCompressConst (uint32_t value)
{
//'nnnnnnnn'

1
Source/Project64-core/N64System/Recompiler/Arm/ArmOps.h
View File

@ -173,6 +173,7 @@ protected:
static void SubConstFromArmReg(ArmReg Reg, uint32_t Const);
static void SubConstFromVariable(uint32_t Const, void * Variable, const char * VariableName);
static void TestVariable(uint32_t Const, void * Variable, const char * VariableName);
static void XorConstToArmReg(ArmReg DestReg, uint32_t value);
static bool CanThumbCompressConst (uint32_t value);
static uint16_t ThumbCompressConst (uint32_t value);