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rpcsx/rpcs3/Emu/ARMv7/ARMv7Interpreter.h
Nekotekina 7172154da7 ARMv7: CMP_IMM, SUB_IMM, null HLE function
2014-11-06 03:22:48 +03:00

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#pragma once
#include "Emu/ARMv7/ARMv7Opcodes.h"
class ARMv7Interpreter : public ARMv7Opcodes
{
ARMv7Thread& CPU;
public:
ARMv7Interpreter(ARMv7Thread& cpu) : CPU(cpu)
{
}
enum SRType : u32
{
SRType_None,
SRType_LSL,
SRType_LSR,
SRType_ASR,
SRType_ROR,
SRType_RRX,
};
template<typename T>
bool IsZero(T x)
{
return x == T(0);
}
template<typename T>
bool IsOnes(T x)
{
return x == ~T(0);
}
template<typename T>
u8 IsZeroBit(T x)
{
return IsZero(x) ? 1 : 0;
}
template<typename T>
bool IsOnesBit(T x, u8 len = sizeof(T) * 8)
{
return IsOnes(x) ? 1 : 0;
}
template<typename T>
u8 BitCount(T x, u8 len = sizeof(T) * 8)
{
u8 result = 0;
for(u8 mask=1 << (len - 1); mask; mask >>= 1)
{
if(x & mask) result++;
}
return result;
}
template<typename T>
s8 LowestSetBit(T x, u8 len = sizeof(T) * 8)
{
if(!x) return len;
u8 result = 0;
for(T mask=1, i=0; i<len && (x & mask) == 0; mask <<= 1, i++)
{
result++;
}
return result;
}
template<typename T>
s8 HighestSetBit(T x, u8 len = sizeof(T) * 8)
{
if(!x) return -1;
u8 result = len;
for(T mask=T(1) << (len - 1); (x & mask) == 0; mask >>= 1)
{
result--;
}
return result;
}
template<typename T>
s8 CountLeadingZeroBits(T x, u8 len = sizeof(T) * 8)
{
return len - 1 - HighestSetBit(x, len);
}
SRType DecodeImmShift(u32 type, u32 imm5, u32* shift_n)
{
SRType shift_t = SRType_None;
switch(type)
{
case 0: shift_t = SRType_LSL; if(shift_n) *shift_n = imm5; break;
case 1: shift_t = SRType_LSR; if(shift_n) *shift_n = imm5 == 0 ? 32 : imm5; break;
case 2: shift_t = SRType_ASR; if(shift_n) *shift_n = imm5 == 0 ? 32 : imm5; break;
case 3:
if(imm5 == 0)
{
shift_t = SRType_RRX; if(shift_n) *shift_n = 1;
}
else
{
shift_t = SRType_ROR; if(shift_n) *shift_n = imm5;
}
break;
}
return shift_t;
}
SRType DecodeRegShift(u8 type)
{
SRType shift_t = SRType_None;
switch(type)
{
case 0: shift_t = SRType_LSL; break;
case 1: shift_t = SRType_LSR; break;
case 2: shift_t = SRType_ASR; break;
case 3: shift_t = SRType_ROR; break;
}
return shift_t;
}
u32 LSL_C(u32 x, int shift, bool& carry_out)
{
u32 extended_x = x << shift;
carry_out = (extended_x >> 31) ? 1 : 0;
return extended_x & ~(1 << 31);
}
u32 LSL(u32 x, int shift)
{
if(!shift) return x;
bool carry_out;
return LSL_C(x, shift, carry_out);
}
u32 LSR_C(u32 x, int shift, bool& carry_out)
{
carry_out = (x >> (shift - 1)) & 0x1;
return x >> shift;
}
u32 LSR(u32 x, int shift)
{
if(!shift) return x;
bool carry_out;
return LSR_C(x, shift, carry_out);
}
s32 ASR_C(s32 x, int shift, bool& carry_out)
{
carry_out = (x >> (shift - 1)) & 0x1;
return x >> shift;
}
s32 ASR(s32 x, int shift)
{
if(!shift) return x;
bool carry_out;
return ASR_C(x, shift, carry_out);
}
u32 ROR_C(u32 x, int shift, bool& carry_out)
{
u32 result = LSR(x, shift) | LSL(x, 32 - shift);
carry_out = (result >> 30) & 0x1;
return result;
}
s32 ROR(s32 x, int shift)
{
if(!shift) return x;
bool carry_out;
return ROR_C(x, shift, carry_out);
}
template<typename T> T RRX_C(T x, bool carry_in, bool& carry_out)
{
carry_out = x & 0x1;
return ((u32)carry_in << 31) | (x & 0x7ffffffe);
}
s32 RRX(s32 x, int shift)
{
if(!shift) return x;
bool carry_out;
return RRX_C(x, shift, carry_out);
}
template<typename T> T Shift_C(T value, SRType type, uint amount, bool carry_in, bool& carry_out)
{
if(amount)
{
switch(type)
{
case SRType_LSL: return LSL_C(value, amount, carry_out);
case SRType_LSR: return LSR_C(value, amount, carry_out);
case SRType_ASR: return ASR_C(value, amount, carry_out);
case SRType_ROR: return ROR_C(value, amount, carry_out);
case SRType_RRX: return RRX_C(value, amount, carry_out);
}
}
carry_out = carry_in;
return value;
}
template<typename T> T Shift(T value, SRType type, u32 amount, bool carry_in)
{
bool carry_out;
return Shift_C(value, type, amount, carry_in, carry_out);
}
template<typename T> T AddWithCarry(T x, T y, bool carry_in, bool& carry_out, bool& overflow)
{
const T sign_mask = (T)1 << (sizeof(T) - 1);
T result = x + y;
carry_out = ((x & y) | ((x ^ y) & ~result)) & sign_mask;
overflow = (x ^ result) & (y ^ result) & sign_mask;
if (carry_in)
{
result += 1;
carry_out ^= (result == 0);
overflow ^= (result == sign_mask);
}
return result;
}
u32 ThumbExpandImm_C(u32 imm12, bool carry_in, bool& carry_out)
{
if ((imm12 & 0xc00) >> 10)
{
u32 unrotated_value = (imm12 & 0x7f) | 0x80;
return ROR_C(unrotated_value, (imm12 & 0xf80) >> 7, carry_out);
}
else
{
carry_out = carry_in;
u32 imm8 = imm12 & 0xff;
switch ((imm12 & 0x300) >> 8)
{
case 0: return imm8;
case 1: return imm8 << 16 | imm8;
case 2: return imm8 << 24 | imm8 << 8;
default: return imm8 << 24 | imm8 << 16 | imm8 << 8 | imm8;
}
}
}
u32 ThumbExpandImm(u32 imm12)
{
bool carry = CPU.APSR.C;
return ThumbExpandImm_C(imm12, carry, carry);
}
bool ConditionPassed(u32 cond) const
{
bool result = false;
switch(cond >> 1)
{
case 0: result = CPU.APSR.Z == 1; break;
case 1: result = CPU.APSR.C == 1; break;
case 2: result = CPU.APSR.N == 1; break;
case 3: result = CPU.APSR.V == 1; break;
case 4: result = CPU.APSR.C == 1 && CPU.APSR.Z == 0; break;
case 5: result = CPU.APSR.N == CPU.APSR.V; break;
case 6: result = CPU.APSR.N == CPU.APSR.V && CPU.APSR.Z == 0; break;
case 7: return true;
}
if(cond & 0x1)
{
return !result;
}
return result;
}
protected:
virtual void UNK(const u32 data);
virtual void NULL_OP(const u32 data, const ARMv7_encoding type);
virtual void HACK(const u32 data, const ARMv7_encoding type);
virtual void ADC_IMM(const u32 data, const ARMv7_encoding type);
virtual void ADC_REG(const u32 data, const ARMv7_encoding type);
virtual void ADC_RSR(const u32 data, const ARMv7_encoding type);
virtual void ADD_IMM(const u32 data, const ARMv7_encoding type);
virtual void ADD_REG(const u32 data, const ARMv7_encoding type);
virtual void ADD_RSR(const u32 data, const ARMv7_encoding type);
virtual void ADD_SPI(const u32 data, const ARMv7_encoding type);
virtual void ADD_SPR(const u32 data, const ARMv7_encoding type);
virtual void ADR(const u32 data, const ARMv7_encoding type);
virtual void AND_IMM(const u32 data, const ARMv7_encoding type);
virtual void AND_REG(const u32 data, const ARMv7_encoding type);
virtual void AND_RSR(const u32 data, const ARMv7_encoding type);
virtual void ASR_IMM(const u32 data, const ARMv7_encoding type);
virtual void ASR_REG(const u32 data, const ARMv7_encoding type);
virtual void B(const u32 data, const ARMv7_encoding type);
virtual void BFC(const u32 data, const ARMv7_encoding type);
virtual void BFI(const u32 data, const ARMv7_encoding type);
virtual void BIC_IMM(const u32 data, const ARMv7_encoding type);
virtual void BIC_REG(const u32 data, const ARMv7_encoding type);
virtual void BIC_RSR(const u32 data, const ARMv7_encoding type);
virtual void BKPT(const u32 data, const ARMv7_encoding type);
virtual void BL(const u32 data, const ARMv7_encoding type);
virtual void BLX(const u32 data, const ARMv7_encoding type);
virtual void BX(const u32 data, const ARMv7_encoding type);
virtual void CB_Z(const u32 data, const ARMv7_encoding type);
virtual void CLZ(const u32 data, const ARMv7_encoding type);
virtual void CMN_IMM(const u32 data, const ARMv7_encoding type);
virtual void CMN_REG(const u32 data, const ARMv7_encoding type);
virtual void CMN_RSR(const u32 data, const ARMv7_encoding type);
virtual void CMP_IMM(const u32 data, const ARMv7_encoding type);
virtual void CMP_REG(const u32 data, const ARMv7_encoding type);
virtual void CMP_RSR(const u32 data, const ARMv7_encoding type);
virtual void EOR_IMM(const u32 data, const ARMv7_encoding type);
virtual void EOR_REG(const u32 data, const ARMv7_encoding type);
virtual void EOR_RSR(const u32 data, const ARMv7_encoding type);
virtual void IT(const u32 data, const ARMv7_encoding type);
virtual void LDM(const u32 data, const ARMv7_encoding type);
virtual void LDMDA(const u32 data, const ARMv7_encoding type);
virtual void LDMDB(const u32 data, const ARMv7_encoding type);
virtual void LDMIB(const u32 data, const ARMv7_encoding type);
virtual void LDR_IMM(const u32 data, const ARMv7_encoding type);
virtual void LDR_LIT(const u32 data, const ARMv7_encoding type);
virtual void LDR_REG(const u32 data, const ARMv7_encoding type);
virtual void LDRB_IMM(const u32 data, const ARMv7_encoding type);
virtual void LDRB_LIT(const u32 data, const ARMv7_encoding type);
virtual void LDRB_REG(const u32 data, const ARMv7_encoding type);
virtual void LDRD_IMM(const u32 data, const ARMv7_encoding type);
virtual void LDRD_LIT(const u32 data, const ARMv7_encoding type);
virtual void LDRD_REG(const u32 data, const ARMv7_encoding type);
virtual void LDRH_IMM(const u32 data, const ARMv7_encoding type);
virtual void LDRH_LIT(const u32 data, const ARMv7_encoding type);
virtual void LDRH_REG(const u32 data, const ARMv7_encoding type);
virtual void LDRSB_IMM(const u32 data, const ARMv7_encoding type);
virtual void LDRSB_LIT(const u32 data, const ARMv7_encoding type);
virtual void LDRSB_REG(const u32 data, const ARMv7_encoding type);
virtual void LDRSH_IMM(const u32 data, const ARMv7_encoding type);
virtual void LDRSH_LIT(const u32 data, const ARMv7_encoding type);
virtual void LDRSH_REG(const u32 data, const ARMv7_encoding type);
virtual void LSL_IMM(const u32 data, const ARMv7_encoding type);
virtual void LSL_REG(const u32 data, const ARMv7_encoding type);
virtual void LSR_IMM(const u32 data, const ARMv7_encoding type);
virtual void LSR_REG(const u32 data, const ARMv7_encoding type);
virtual void MLA(const u32 data, const ARMv7_encoding type);
virtual void MLS(const u32 data, const ARMv7_encoding type);
virtual void MOV_IMM(const u32 data, const ARMv7_encoding type);
virtual void MOV_REG(const u32 data, const ARMv7_encoding type);
virtual void MOVT(const u32 data, const ARMv7_encoding type);
virtual void MRS(const u32 data, const ARMv7_encoding type);
virtual void MSR_IMM(const u32 data, const ARMv7_encoding type);
virtual void MSR_REG(const u32 data, const ARMv7_encoding type);
virtual void MUL(const u32 data, const ARMv7_encoding type);
virtual void MVN_IMM(const u32 data, const ARMv7_encoding type);
virtual void MVN_REG(const u32 data, const ARMv7_encoding type);
virtual void MVN_RSR(const u32 data, const ARMv7_encoding type);
virtual void NOP(const u32 data, const ARMv7_encoding type);
virtual void ORN_IMM(const u32 data, const ARMv7_encoding type);
virtual void ORN_REG(const u32 data, const ARMv7_encoding type);
virtual void ORR_IMM(const u32 data, const ARMv7_encoding type);
virtual void ORR_REG(const u32 data, const ARMv7_encoding type);
virtual void ORR_RSR(const u32 data, const ARMv7_encoding type);
virtual void PKH(const u32 data, const ARMv7_encoding type);
virtual void POP(const u32 data, const ARMv7_encoding type);
virtual void PUSH(const u32 data, const ARMv7_encoding type);
virtual void QADD(const u32 data, const ARMv7_encoding type);
virtual void QADD16(const u32 data, const ARMv7_encoding type);
virtual void QADD8(const u32 data, const ARMv7_encoding type);
virtual void QASX(const u32 data, const ARMv7_encoding type);
virtual void QDADD(const u32 data, const ARMv7_encoding type);
virtual void QDSUB(const u32 data, const ARMv7_encoding type);
virtual void QSAX(const u32 data, const ARMv7_encoding type);
virtual void QSUB(const u32 data, const ARMv7_encoding type);
virtual void QSUB16(const u32 data, const ARMv7_encoding type);
virtual void QSUB8(const u32 data, const ARMv7_encoding type);
virtual void RBIT(const u32 data, const ARMv7_encoding type);
virtual void REV(const u32 data, const ARMv7_encoding type);
virtual void REV16(const u32 data, const ARMv7_encoding type);
virtual void REVSH(const u32 data, const ARMv7_encoding type);
virtual void ROR_IMM(const u32 data, const ARMv7_encoding type);
virtual void ROR_REG(const u32 data, const ARMv7_encoding type);
virtual void RRX(const u32 data, const ARMv7_encoding type);
virtual void RSB_IMM(const u32 data, const ARMv7_encoding type);
virtual void RSB_REG(const u32 data, const ARMv7_encoding type);
virtual void RSB_RSR(const u32 data, const ARMv7_encoding type);
virtual void RSC_IMM(const u32 data, const ARMv7_encoding type);
virtual void RSC_REG(const u32 data, const ARMv7_encoding type);
virtual void RSC_RSR(const u32 data, const ARMv7_encoding type);
virtual void SADD16(const u32 data, const ARMv7_encoding type);
virtual void SADD8(const u32 data, const ARMv7_encoding type);
virtual void SASX(const u32 data, const ARMv7_encoding type);
virtual void SBC_IMM(const u32 data, const ARMv7_encoding type);
virtual void SBC_REG(const u32 data, const ARMv7_encoding type);
virtual void SBC_RSR(const u32 data, const ARMv7_encoding type);
virtual void SBFX(const u32 data, const ARMv7_encoding type);
virtual void SDIV(const u32 data, const ARMv7_encoding type);
virtual void SEL(const u32 data, const ARMv7_encoding type);
virtual void SHADD16(const u32 data, const ARMv7_encoding type);
virtual void SHADD8(const u32 data, const ARMv7_encoding type);
virtual void SHASX(const u32 data, const ARMv7_encoding type);
virtual void SHSAX(const u32 data, const ARMv7_encoding type);
virtual void SHSUB16(const u32 data, const ARMv7_encoding type);
virtual void SHSUB8(const u32 data, const ARMv7_encoding type);
virtual void SMLA__(const u32 data, const ARMv7_encoding type);
virtual void SMLAD(const u32 data, const ARMv7_encoding type);
virtual void SMLAL(const u32 data, const ARMv7_encoding type);
virtual void SMLAL__(const u32 data, const ARMv7_encoding type);
virtual void SMLALD(const u32 data, const ARMv7_encoding type);
virtual void SMLAW_(const u32 data, const ARMv7_encoding type);
virtual void SMLSD(const u32 data, const ARMv7_encoding type);
virtual void SMLSLD(const u32 data, const ARMv7_encoding type);
virtual void SMMLA(const u32 data, const ARMv7_encoding type);
virtual void SMMLS(const u32 data, const ARMv7_encoding type);
virtual void SMMUL(const u32 data, const ARMv7_encoding type);
virtual void SMUAD(const u32 data, const ARMv7_encoding type);
virtual void SMUL__(const u32 data, const ARMv7_encoding type);
virtual void SMULL(const u32 data, const ARMv7_encoding type);
virtual void SMULW_(const u32 data, const ARMv7_encoding type);
virtual void SMUSD(const u32 data, const ARMv7_encoding type);
virtual void SSAT(const u32 data, const ARMv7_encoding type);
virtual void SSAT16(const u32 data, const ARMv7_encoding type);
virtual void SSAX(const u32 data, const ARMv7_encoding type);
virtual void SSUB16(const u32 data, const ARMv7_encoding type);
virtual void SSUB8(const u32 data, const ARMv7_encoding type);
virtual void STM(const u32 data, const ARMv7_encoding type);
virtual void STMDA(const u32 data, const ARMv7_encoding type);
virtual void STMDB(const u32 data, const ARMv7_encoding type);
virtual void STMIB(const u32 data, const ARMv7_encoding type);
virtual void STR_IMM(const u32 data, const ARMv7_encoding type);
virtual void STR_REG(const u32 data, const ARMv7_encoding type);
virtual void STRB_IMM(const u32 data, const ARMv7_encoding type);
virtual void STRB_REG(const u32 data, const ARMv7_encoding type);
virtual void STRD_IMM(const u32 data, const ARMv7_encoding type);
virtual void STRD_REG(const u32 data, const ARMv7_encoding type);
virtual void STRH_IMM(const u32 data, const ARMv7_encoding type);
virtual void STRH_REG(const u32 data, const ARMv7_encoding type);
virtual void SUB_IMM(const u32 data, const ARMv7_encoding type);
virtual void SUB_REG(const u32 data, const ARMv7_encoding type);
virtual void SUB_RSR(const u32 data, const ARMv7_encoding type);
virtual void SUB_SPI(const u32 data, const ARMv7_encoding type);
virtual void SUB_SPR(const u32 data, const ARMv7_encoding type);
virtual void SVC(const u32 data, const ARMv7_encoding type);
virtual void SXTAB(const u32 data, const ARMv7_encoding type);
virtual void SXTAB16(const u32 data, const ARMv7_encoding type);
virtual void SXTAH(const u32 data, const ARMv7_encoding type);
virtual void SXTB(const u32 data, const ARMv7_encoding type);
virtual void SXTB16(const u32 data, const ARMv7_encoding type);
virtual void SXTH(const u32 data, const ARMv7_encoding type);
virtual void TB_(const u32 data, const ARMv7_encoding type);
virtual void TEQ_IMM(const u32 data, const ARMv7_encoding type);
virtual void TEQ_REG(const u32 data, const ARMv7_encoding type);
virtual void TEQ_RSR(const u32 data, const ARMv7_encoding type);
virtual void TST_IMM(const u32 data, const ARMv7_encoding type);
virtual void TST_REG(const u32 data, const ARMv7_encoding type);
virtual void TST_RSR(const u32 data, const ARMv7_encoding type);
virtual void UADD16(const u32 data, const ARMv7_encoding type);
virtual void UADD8(const u32 data, const ARMv7_encoding type);
virtual void UASX(const u32 data, const ARMv7_encoding type);
virtual void UBFX(const u32 data, const ARMv7_encoding type);
virtual void UDIV(const u32 data, const ARMv7_encoding type);
virtual void UHADD16(const u32 data, const ARMv7_encoding type);
virtual void UHADD8(const u32 data, const ARMv7_encoding type);
virtual void UHASX(const u32 data, const ARMv7_encoding type);
virtual void UHSAX(const u32 data, const ARMv7_encoding type);
virtual void UHSUB16(const u32 data, const ARMv7_encoding type);
virtual void UHSUB8(const u32 data, const ARMv7_encoding type);
virtual void UMAAL(const u32 data, const ARMv7_encoding type);
virtual void UMLAL(const u32 data, const ARMv7_encoding type);
virtual void UMULL(const u32 data, const ARMv7_encoding type);
virtual void UQADD16(const u32 data, const ARMv7_encoding type);
virtual void UQADD8(const u32 data, const ARMv7_encoding type);
virtual void UQASX(const u32 data, const ARMv7_encoding type);
virtual void UQSAX(const u32 data, const ARMv7_encoding type);
virtual void UQSUB16(const u32 data, const ARMv7_encoding type);
virtual void UQSUB8(const u32 data, const ARMv7_encoding type);
virtual void USAD8(const u32 data, const ARMv7_encoding type);
virtual void USADA8(const u32 data, const ARMv7_encoding type);
virtual void USAT(const u32 data, const ARMv7_encoding type);
virtual void USAT16(const u32 data, const ARMv7_encoding type);
virtual void USAX(const u32 data, const ARMv7_encoding type);
virtual void USUB16(const u32 data, const ARMv7_encoding type);
virtual void USUB8(const u32 data, const ARMv7_encoding type);
virtual void UXTAB(const u32 data, const ARMv7_encoding type);
virtual void UXTAB16(const u32 data, const ARMv7_encoding type);
virtual void UXTAH(const u32 data, const ARMv7_encoding type);
virtual void UXTB(const u32 data, const ARMv7_encoding type);
virtual void UXTB16(const u32 data, const ARMv7_encoding type);
virtual void UXTH(const u32 data, const ARMv7_encoding type);
};
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