Ryujinx/Ryujinx.Tests/Cpu/Tester/Instructions.cs

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// https://github.com/LDj3SNuD/ARM_v8-A_AArch64_Instructions_Tester/blob/master/Tester/Instructions.cs
// https://meriac.github.io/archex/A64_v83A_ISA/index.xml
/* https://meriac.github.io/archex/A64_v83A_ISA/fpsimdindex.xml */
using System.Numerics;
namespace Ryujinx.Tests.Cpu.Tester
{
using Types;
using static AArch64;
using static Shared;
internal static class Base
{
#region "Alu"
// https://meriac.github.io/archex/A64_v83A_ISA/cls_int.xml
public static void Cls(bool sf, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits operand1 = X(datasize, n);
BigInteger result = (BigInteger)CountLeadingSignBits(operand1);
X(d, result.SubBigInteger(datasize - 1, 0));
}
// https://meriac.github.io/archex/A64_v83A_ISA/clz_int.xml
public static void Clz(bool sf, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits operand1 = X(datasize, n);
BigInteger result = (BigInteger)CountLeadingZeroBits(operand1);
X(d, result.SubBigInteger(datasize - 1, 0));
}
// https://meriac.github.io/archex/A64_v83A_ISA/rbit_int.xml
public static void Rbit(bool sf, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits result = new Bits(datasize);
Bits operand = X(datasize, n);
for (int i = 0; i <= datasize - 1; i++)
{
result[datasize - 1 - i] = operand[i];
}
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/rev16_int.xml
public static void Rev16(bool sf, Bits Rn, Bits Rd)
{
/* Bits opc = "01"; */
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
int container_size = 16;
/* Operation */
Bits result = new Bits(datasize);
Bits operand = X(datasize, n);
int containers = datasize / container_size;
int elements_per_container = container_size / 8;
int index = 0;
int rev_index;
for (int c = 0; c <= containers - 1; c++)
{
rev_index = index + ((elements_per_container - 1) * 8);
for (int e = 0; e <= elements_per_container - 1; e++)
{
result[rev_index + 7, rev_index] = operand[index + 7, index];
index = index + 8;
rev_index = rev_index - 8;
}
}
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/rev32_int.xml
// (https://meriac.github.io/archex/A64_v83A_ISA/rev.xml)
public static void Rev32(bool sf, Bits Rn, Bits Rd)
{
/* Bits opc = "10"; */
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
int container_size = 32;
/* Operation */
Bits result = new Bits(datasize);
Bits operand = X(datasize, n);
int containers = datasize / container_size;
int elements_per_container = container_size / 8;
int index = 0;
int rev_index;
for (int c = 0; c <= containers - 1; c++)
{
rev_index = index + ((elements_per_container - 1) * 8);
for (int e = 0; e <= elements_per_container - 1; e++)
{
result[rev_index + 7, rev_index] = operand[index + 7, index];
index = index + 8;
rev_index = rev_index - 8;
}
}
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/rev64_rev.xml
// (https://meriac.github.io/archex/A64_v83A_ISA/rev.xml)
public static void Rev64(Bits Rn, Bits Rd)
{
/* Bits opc = "11"; */
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int container_size = 64;
/* Operation */
Bits result = new Bits(64);
Bits operand = X(64, n);
int containers = 64 / container_size;
int elements_per_container = container_size / 8;
int index = 0;
int rev_index;
for (int c = 0; c <= containers - 1; c++)
{
rev_index = index + ((elements_per_container - 1) * 8);
for (int e = 0; e <= elements_per_container - 1; e++)
{
result[rev_index + 7, rev_index] = operand[index + 7, index];
index = index + 8;
rev_index = rev_index - 8;
}
}
X(d, result);
}
#endregion
#region "AluImm"
// https://meriac.github.io/archex/A64_v83A_ISA/add_addsub_imm.xml
public static void Add_Imm(bool sf, Bits shift, Bits imm12, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
Bits imm;
switch (shift)
{
default:
case Bits bits when bits == "00":
imm = ZeroExtend(imm12, datasize);
break;
case Bits bits when bits == "01":
imm = ZeroExtend(Bits.Concat(imm12, Zeros(12)), datasize);
break;
/* when '1x' ReservedValue(); */
}
/* Operation */
Bits result;
Bits operand1 = (n == 31 ? SP(datasize) : X(datasize, n));
(result, _) = AddWithCarry(datasize, operand1, imm, false);
if (d == 31)
{
SP(result);
}
else
{
X(d, result);
}
}
// https://meriac.github.io/archex/A64_v83A_ISA/adds_addsub_imm.xml
public static void Adds_Imm(bool sf, Bits shift, Bits imm12, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
Bits imm;
switch (shift)
{
default:
case Bits bits when bits == "00":
imm = ZeroExtend(imm12, datasize);
break;
case Bits bits when bits == "01":
imm = ZeroExtend(Bits.Concat(imm12, Zeros(12)), datasize);
break;
/* when '1x' ReservedValue(); */
}
/* Operation */
Bits result;
Bits operand1 = (n == 31 ? SP(datasize) : X(datasize, n));
Bits nzcv;
(result, nzcv) = AddWithCarry(datasize, operand1, imm, false);
PSTATE.NZCV(nzcv);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/and_log_imm.xml
public static void And_Imm(bool sf, bool N, Bits immr, Bits imms, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
Bits imm;
/* if sf == '0' && N != '0' then ReservedValue(); */
(imm, _) = DecodeBitMasks(datasize, N, imms, immr, true);
/* Operation */
Bits operand1 = X(datasize, n);
Bits result = AND(operand1, imm);
if (d == 31)
{
SP(result);
}
else
{
X(d, result);
}
}
// https://meriac.github.io/archex/A64_v83A_ISA/ands_log_imm.xml
public static void Ands_Imm(bool sf, bool N, Bits immr, Bits imms, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
Bits imm;
/* if sf == '0' && N != '0' then ReservedValue(); */
(imm, _) = DecodeBitMasks(datasize, N, imms, immr, true);
/* Operation */
Bits operand1 = X(datasize, n);
Bits result = AND(operand1, imm);
PSTATE.NZCV(result[datasize - 1], IsZeroBit(result), false, false);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/eor_log_imm.xml
public static void Eor_Imm(bool sf, bool N, Bits immr, Bits imms, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
Bits imm;
/* if sf == '0' && N != '0' then ReservedValue(); */
(imm, _) = DecodeBitMasks(datasize, N, imms, immr, true);
/* Operation */
Bits operand1 = X(datasize, n);
Bits result = EOR(operand1, imm);
if (d == 31)
{
SP(result);
}
else
{
X(d, result);
}
}
// https://meriac.github.io/archex/A64_v83A_ISA/orr_log_imm.xml
public static void Orr_Imm(bool sf, bool N, Bits immr, Bits imms, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
Bits imm;
/* if sf == '0' && N != '0' then ReservedValue(); */
(imm, _) = DecodeBitMasks(datasize, N, imms, immr, true);
/* Operation */
Bits operand1 = X(datasize, n);
Bits result = OR(operand1, imm);
if (d == 31)
{
SP(result);
}
else
{
X(d, result);
}
}
// https://meriac.github.io/archex/A64_v83A_ISA/sub_addsub_imm.xml
public static void Sub_Imm(bool sf, Bits shift, Bits imm12, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
Bits imm;
switch (shift)
{
default:
case Bits bits when bits == "00":
imm = ZeroExtend(imm12, datasize);
break;
case Bits bits when bits == "01":
imm = ZeroExtend(Bits.Concat(imm12, Zeros(12)), datasize);
break;
/* when '1x' ReservedValue(); */
}
/* Operation */
Bits result;
Bits operand1 = (n == 31 ? SP(datasize) : X(datasize, n));
Bits operand2 = NOT(imm);
(result, _) = AddWithCarry(datasize, operand1, operand2, true);
if (d == 31)
{
SP(result);
}
else
{
X(d, result);
}
}
// https://meriac.github.io/archex/A64_v83A_ISA/subs_addsub_imm.xml
public static void Subs_Imm(bool sf, Bits shift, Bits imm12, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
Bits imm;
switch (shift)
{
default:
case Bits bits when bits == "00":
imm = ZeroExtend(imm12, datasize);
break;
case Bits bits when bits == "01":
imm = ZeroExtend(Bits.Concat(imm12, Zeros(12)), datasize);
break;
/* when '1x' ReservedValue(); */
}
/* Operation */
Bits result;
Bits operand1 = (n == 31 ? SP(datasize) : X(datasize, n));
Bits operand2 = NOT(imm);
Bits nzcv;
(result, nzcv) = AddWithCarry(datasize, operand1, operand2, true);
PSTATE.NZCV(nzcv);
X(d, result);
}
#endregion
#region "AluRs"
// https://meriac.github.io/archex/A64_v83A_ISA/adc.xml
public static void Adc(bool sf, Bits Rm, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits result;
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
(result, _) = AddWithCarry(datasize, operand1, operand2, PSTATE.C);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/adcs.xml
public static void Adcs(bool sf, Bits Rm, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits result;
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
Bits nzcv;
(result, nzcv) = AddWithCarry(datasize, operand1, operand2, PSTATE.C);
PSTATE.NZCV(nzcv);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/add_addsub_shift.xml
public static void Add_Rs(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if shift == '11' then ReservedValue(); */
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
ShiftType shift_type = DecodeShift(shift);
int shift_amount = (int)UInt(imm6);
/* Operation */
Bits result;
Bits operand1 = X(datasize, n);
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
(result, _) = AddWithCarry(datasize, operand1, operand2, false);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/adds_addsub_shift.xml
public static void Adds_Rs(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if shift == '11' then ReservedValue(); */
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
ShiftType shift_type = DecodeShift(shift);
int shift_amount = (int)UInt(imm6);
/* Operation */
Bits result;
Bits operand1 = X(datasize, n);
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
Bits nzcv;
(result, nzcv) = AddWithCarry(datasize, operand1, operand2, false);
PSTATE.NZCV(nzcv);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/and_log_shift.xml
public static void And_Rs(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
ShiftType shift_type = DecodeShift(shift);
int shift_amount = (int)UInt(imm6);
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
Bits result = AND(operand1, operand2);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/ands_log_shift.xml
public static void Ands_Rs(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
ShiftType shift_type = DecodeShift(shift);
int shift_amount = (int)UInt(imm6);
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
Bits result = AND(operand1, operand2);
PSTATE.NZCV(result[datasize - 1], IsZeroBit(result), false, false);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/asrv.xml
public static void Asrv(bool sf, Bits Rm, Bits Rn, Bits Rd)
{
Bits op2 = "10";
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
ShiftType shift_type = DecodeShift(op2);
/* Operation */
Bits operand2 = X(datasize, m);
Bits result = ShiftReg(datasize, n, shift_type, (int)(UInt(operand2) % datasize)); // BigInteger.ModulusOperator(BigInteger,BigInteger)
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/bic_log_shift.xml
public static void Bic(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
ShiftType shift_type = DecodeShift(shift);
int shift_amount = (int)UInt(imm6);
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
operand2 = NOT(operand2);
Bits result = AND(operand1, operand2);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/bics.xml
public static void Bics(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
ShiftType shift_type = DecodeShift(shift);
int shift_amount = (int)UInt(imm6);
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
operand2 = NOT(operand2);
Bits result = AND(operand1, operand2);
PSTATE.NZCV(result[datasize - 1], IsZeroBit(result), false, false);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/crc32.xml
public static void Crc32(bool sf, Bits Rm, Bits sz, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
/* if sf == '1' && sz != '11' then UnallocatedEncoding(); */
/* if sf == '0' && sz == '11' then UnallocatedEncoding(); */
int size = 8 << (int)UInt(sz);
/* Operation */
/* if !HaveCRCExt() then UnallocatedEncoding(); */
Bits acc = X(32, n); // accumulator
Bits val = X(size, m); // input value
Bits poly = new Bits(0x04C11DB7u);
Bits tempacc = Bits.Concat(BitReverse(acc), Zeros(size));
Bits tempval = Bits.Concat(BitReverse(val), Zeros(32));
// Poly32Mod2 on a bitstring does a polynomial Modulus over {0,1} operation
X(d, BitReverse(Poly32Mod2(EOR(tempacc, tempval), poly)));
}
// https://meriac.github.io/archex/A64_v83A_ISA/crc32c.xml
public static void Crc32c(bool sf, Bits Rm, Bits sz, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
/* if sf == '1' && sz != '11' then UnallocatedEncoding(); */
/* if sf == '0' && sz == '11' then UnallocatedEncoding(); */
int size = 8 << (int)UInt(sz);
/* Operation */
/* if !HaveCRCExt() then UnallocatedEncoding(); */
Bits acc = X(32, n); // accumulator
Bits val = X(size, m); // input value
Bits poly = new Bits(0x1EDC6F41u);
Bits tempacc = Bits.Concat(BitReverse(acc), Zeros(size));
Bits tempval = Bits.Concat(BitReverse(val), Zeros(32));
// Poly32Mod2 on a bitstring does a polynomial Modulus over {0,1} operation
X(d, BitReverse(Poly32Mod2(EOR(tempacc, tempval), poly)));
}
// https://meriac.github.io/archex/A64_v83A_ISA/eon.xml
public static void Eon(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
ShiftType shift_type = DecodeShift(shift);
int shift_amount = (int)UInt(imm6);
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
operand2 = NOT(operand2);
Bits result = EOR(operand1, operand2);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/eor_log_shift.xml
public static void Eor_Rs(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
ShiftType shift_type = DecodeShift(shift);
int shift_amount = (int)UInt(imm6);
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
Bits result = EOR(operand1, operand2);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/extr.xml
public static void Extr(bool sf, bool N, Bits Rm, Bits imms, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if N != sf then UnallocatedEncoding(); */
/* if sf == '0' && imms<5> == '1' then ReservedValue(); */
int lsb = (int)UInt(imms);
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
Bits concat = Bits.Concat(operand1, operand2);
Bits result = concat[lsb + datasize - 1, lsb];
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/lslv.xml
public static void Lslv(bool sf, Bits Rm, Bits Rn, Bits Rd)
{
Bits op2 = "00";
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
ShiftType shift_type = DecodeShift(op2);
/* Operation */
Bits operand2 = X(datasize, m);
Bits result = ShiftReg(datasize, n, shift_type, (int)(UInt(operand2) % datasize)); // BigInteger.ModulusOperator(BigInteger,BigInteger)
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/lsrv.xml
public static void Lsrv(bool sf, Bits Rm, Bits Rn, Bits Rd)
{
Bits op2 = "01";
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
ShiftType shift_type = DecodeShift(op2);
/* Operation */
Bits operand2 = X(datasize, m);
Bits result = ShiftReg(datasize, n, shift_type, (int)(UInt(operand2) % datasize)); // BigInteger.ModulusOperator(BigInteger,BigInteger)
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/orn_log_shift.xml
public static void Orn(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
ShiftType shift_type = DecodeShift(shift);
int shift_amount = (int)UInt(imm6);
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
operand2 = NOT(operand2);
Bits result = OR(operand1, operand2);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/orr_log_shift.xml
public static void Orr_Rs(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
ShiftType shift_type = DecodeShift(shift);
int shift_amount = (int)UInt(imm6);
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
Bits result = OR(operand1, operand2);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/rorv.xml
public static void Rorv(bool sf, Bits Rm, Bits Rn, Bits Rd)
{
Bits op2 = "11";
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
ShiftType shift_type = DecodeShift(op2);
/* Operation */
Bits operand2 = X(datasize, m);
Bits result = ShiftReg(datasize, n, shift_type, (int)(UInt(operand2) % datasize)); // BigInteger.ModulusOperator(BigInteger,BigInteger)
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/sbc.xml
public static void Sbc(bool sf, Bits Rm, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits result;
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
operand2 = NOT(operand2);
(result, _) = AddWithCarry(datasize, operand1, operand2, PSTATE.C);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/sbcs.xml
public static void Sbcs(bool sf, Bits Rm, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits result;
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
Bits nzcv;
operand2 = NOT(operand2);
(result, nzcv) = AddWithCarry(datasize, operand1, operand2, PSTATE.C);
PSTATE.NZCV(nzcv);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/sdiv.xml
public static void Sdiv(bool sf, Bits Rm, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* Operation */
BigInteger result;
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
if (IsZero(operand2))
{
result = (BigInteger)0m;
}
else
{
result = RoundTowardsZero(Real(Int(operand1, false)) / Real(Int(operand2, false)));
}
X(d, result.SubBigInteger(datasize - 1, 0));
}
// https://meriac.github.io/archex/A64_v83A_ISA/sub_addsub_shift.xml
public static void Sub_Rs(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if shift == '11' then ReservedValue(); */
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
ShiftType shift_type = DecodeShift(shift);
int shift_amount = (int)UInt(imm6);
/* Operation */
Bits result;
Bits operand1 = X(datasize, n);
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
operand2 = NOT(operand2);
(result, _) = AddWithCarry(datasize, operand1, operand2, true);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/subs_addsub_shift.xml
public static void Subs_Rs(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* if shift == '11' then ReservedValue(); */
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
ShiftType shift_type = DecodeShift(shift);
int shift_amount = (int)UInt(imm6);
/* Operation */
Bits result;
Bits operand1 = X(datasize, n);
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
Bits nzcv;
operand2 = NOT(operand2);
(result, nzcv) = AddWithCarry(datasize, operand1, operand2, true);
PSTATE.NZCV(nzcv);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/udiv.xml
public static void Udiv(bool sf, Bits Rm, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* Operation */
BigInteger result;
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
if (IsZero(operand2))
{
result = (BigInteger)0m;
}
else
{
result = RoundTowardsZero(Real(Int(operand1, true)) / Real(Int(operand2, true)));
}
X(d, result.SubBigInteger(datasize - 1, 0));
}
#endregion
#region "AluRx"
// https://meriac.github.io/archex/A64_v83A_ISA/add_addsub_ext.xml
public static void Add_Rx(bool sf, Bits Rm, Bits option, Bits imm3, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
ExtendType extend_type = DecodeRegExtend(option);
int shift = (int)UInt(imm3);
/* if shift > 4 then ReservedValue(); */
/* Operation */
Bits result;
Bits operand1 = (n == 31 ? SP(datasize) : X(datasize, n));
Bits operand2 = ExtendReg(datasize, m, extend_type, shift);
(result, _) = AddWithCarry(datasize, operand1, operand2, false);
if (d == 31)
{
SP(result);
}
else
{
X(d, result);
}
}
// https://meriac.github.io/archex/A64_v83A_ISA/adds_addsub_ext.xml
public static void Adds_Rx(bool sf, Bits Rm, Bits option, Bits imm3, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
ExtendType extend_type = DecodeRegExtend(option);
int shift = (int)UInt(imm3);
/* if shift > 4 then ReservedValue(); */
/* Operation */
Bits result;
Bits operand1 = (n == 31 ? SP(datasize) : X(datasize, n));
Bits operand2 = ExtendReg(datasize, m, extend_type, shift);
Bits nzcv;
(result, nzcv) = AddWithCarry(datasize, operand1, operand2, false);
PSTATE.NZCV(nzcv);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/sub_addsub_ext.xml
public static void Sub_Rx(bool sf, Bits Rm, Bits option, Bits imm3, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
ExtendType extend_type = DecodeRegExtend(option);
int shift = (int)UInt(imm3);
/* if shift > 4 then ReservedValue(); */
/* Operation */
Bits result;
Bits operand1 = (n == 31 ? SP(datasize) : X(datasize, n));
Bits operand2 = ExtendReg(datasize, m, extend_type, shift);
operand2 = NOT(operand2);
(result, _) = AddWithCarry(datasize, operand1, operand2, true);
if (d == 31)
{
SP(result);
}
else
{
X(d, result);
}
}
// https://meriac.github.io/archex/A64_v83A_ISA/subs_addsub_ext.xml
public static void Subs_Rx(bool sf, Bits Rm, Bits option, Bits imm3, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
ExtendType extend_type = DecodeRegExtend(option);
int shift = (int)UInt(imm3);
/* if shift > 4 then ReservedValue(); */
/* Operation */
Bits result;
Bits operand1 = (n == 31 ? SP(datasize) : X(datasize, n));
Bits operand2 = ExtendReg(datasize, m, extend_type, shift);
Bits nzcv;
operand2 = NOT(operand2);
(result, nzcv) = AddWithCarry(datasize, operand1, operand2, true);
PSTATE.NZCV(nzcv);
X(d, result);
}
#endregion
#region "Bfm"
// https://meriac.github.io/archex/A64_v83A_ISA/bfm.xml
public static void Bfm(bool sf, bool N, Bits immr, Bits imms, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
int R;
Bits wmask;
Bits tmask;
/* if sf == '1' && N != '1' then ReservedValue(); */
/* if sf == '0' && (N != '0' || immr<5> != '0' || imms<5> != '0') then ReservedValue(); */
R = (int)UInt(immr);
(wmask, tmask) = DecodeBitMasks(datasize, N, imms, immr, false);
/* Operation */
Bits dst = X(datasize, d);
Bits src = X(datasize, n);
// perform bitfield move on low bits
Bits bot = OR(AND(dst, NOT(wmask)), AND(ROR(src, R), wmask));
// combine extension bits and result bits
X(d, OR(AND(dst, NOT(tmask)), AND(bot, tmask)));
}
// https://meriac.github.io/archex/A64_v83A_ISA/sbfm.xml
public static void Sbfm(bool sf, bool N, Bits immr, Bits imms, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
int R;
int S;
Bits wmask;
Bits tmask;
/* if sf == '1' && N != '1' then ReservedValue(); */
/* if sf == '0' && (N != '0' || immr<5> != '0' || imms<5> != '0') then ReservedValue(); */
R = (int)UInt(immr);
S = (int)UInt(imms);
(wmask, tmask) = DecodeBitMasks(datasize, N, imms, immr, false);
/* Operation */
Bits src = X(datasize, n);
// perform bitfield move on low bits
Bits bot = AND(ROR(src, R), wmask);
// determine extension bits (sign, zero or dest register)
Bits top = Replicate(datasize, src[S]);
// combine extension bits and result bits
X(d, OR(AND(top, NOT(tmask)), AND(bot, tmask)));
}
// https://meriac.github.io/archex/A64_v83A_ISA/ubfm.xml
public static void Ubfm(bool sf, bool N, Bits immr, Bits imms, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
int R;
Bits wmask;
Bits tmask;
/* if sf == '1' && N != '1' then ReservedValue(); */
/* if sf == '0' && (N != '0' || immr<5> != '0' || imms<5> != '0') then ReservedValue(); */
R = (int)UInt(immr);
(wmask, tmask) = DecodeBitMasks(datasize, N, imms, immr, false);
/* Operation */
Bits src = X(datasize, n);
// perform bitfield move on low bits
Bits bot = AND(ROR(src, R), wmask);
// combine extension bits and result bits
X(d, AND(bot, tmask));
}
#endregion
#region "CcmpImm"
// https://meriac.github.io/archex/A64_v83A_ISA/ccmn_imm.xml
public static void Ccmn_Imm(bool sf, Bits imm5, Bits cond, Bits Rn, Bits nzcv)
{
/* Decode */
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
Bits flags = nzcv;
Bits imm = ZeroExtend(imm5, datasize);
/* Operation */
Bits operand1 = X(datasize, n);
if (ConditionHolds(cond))
{
(_, flags) = AddWithCarry(datasize, operand1, imm, false);
}
PSTATE.NZCV(flags);
}
// https://meriac.github.io/archex/A64_v83A_ISA/ccmp_imm.xml
public static void Ccmp_Imm(bool sf, Bits imm5, Bits cond, Bits Rn, Bits nzcv)
{
/* Decode */
int n = (int)UInt(Rn);
int datasize = (sf ? 64 : 32);
Bits flags = nzcv;
Bits imm = ZeroExtend(imm5, datasize);
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2;
if (ConditionHolds(cond))
{
operand2 = NOT(imm);
(_, flags) = AddWithCarry(datasize, operand1, operand2, true);
}
PSTATE.NZCV(flags);
}
#endregion
#region "CcmpReg"
// https://meriac.github.io/archex/A64_v83A_ISA/ccmn_reg.xml
public static void Ccmn_Reg(bool sf, Bits Rm, Bits cond, Bits Rn, Bits nzcv)
{
/* Decode */
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
Bits flags = nzcv;
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
if (ConditionHolds(cond))
{
(_, flags) = AddWithCarry(datasize, operand1, operand2, false);
}
PSTATE.NZCV(flags);
}
// https://meriac.github.io/archex/A64_v83A_ISA/ccmp_reg.xml
public static void Ccmp_Reg(bool sf, Bits Rm, Bits cond, Bits Rn, Bits nzcv)
{
/* Decode */
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
Bits flags = nzcv;
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
if (ConditionHolds(cond))
{
operand2 = NOT(operand2);
(_, flags) = AddWithCarry(datasize, operand1, operand2, true);
}
PSTATE.NZCV(flags);
}
#endregion
#region "Csel"
// https://meriac.github.io/archex/A64_v83A_ISA/csel.xml
public static void Csel(bool sf, Bits Rm, Bits cond, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits result;
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
if (ConditionHolds(cond))
{
result = operand1;
}
else
{
result = operand2;
}
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/csinc.xml
public static void Csinc(bool sf, Bits Rm, Bits cond, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits result;
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
if (ConditionHolds(cond))
{
result = operand1;
}
else
{
result = operand2 + 1;
}
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/csinv.xml
public static void Csinv(bool sf, Bits Rm, Bits cond, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits result;
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
if (ConditionHolds(cond))
{
result = operand1;
}
else
{
result = NOT(operand2);
}
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/csneg.xml
public static void Csneg(bool sf, Bits Rm, Bits cond, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits result;
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
if (ConditionHolds(cond))
{
result = operand1;
}
else
{
result = NOT(operand2);
result = result + 1;
}
X(d, result);
}
#endregion
#region "Mov"
// https://meriac.github.io/archex/A64_v83A_ISA/movk.xml
public static void Movk(bool sf, Bits hw, Bits imm16, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int datasize = (sf ? 64 : 32);
/* if sf == '0' && hw<1> == '1' then UnallocatedEncoding(); */
int pos = (int)UInt(Bits.Concat(hw, "0000"));
/* Operation */
Bits result = X(datasize, d);
result[pos + 15, pos] = imm16;
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/movn.xml
public static void Movn(bool sf, Bits hw, Bits imm16, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int datasize = (sf ? 64 : 32);
/* if sf == '0' && hw<1> == '1' then UnallocatedEncoding(); */
int pos = (int)UInt(Bits.Concat(hw, "0000"));
/* Operation */
Bits result = Zeros(datasize);
result[pos + 15, pos] = imm16;
result = NOT(result);
X(d, result);
}
// https://meriac.github.io/archex/A64_v83A_ISA/movz.xml
public static void Movz(bool sf, Bits hw, Bits imm16, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int datasize = (sf ? 64 : 32);
/* if sf == '0' && hw<1> == '1' then UnallocatedEncoding(); */
int pos = (int)UInt(Bits.Concat(hw, "0000"));
/* Operation */
Bits result = Zeros(datasize);
result[pos + 15, pos] = imm16;
X(d, result);
}
#endregion
#region "Mul"
// https://meriac.github.io/archex/A64_v83A_ISA/madd.xml
public static void Madd(bool sf, Bits Rm, Bits Ra, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int a = (int)UInt(Ra);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
Bits operand3 = X(datasize, a);
BigInteger result = UInt(operand3) + (UInt(operand1) * UInt(operand2));
X(d, result.SubBigInteger(datasize - 1, 0));
}
// https://meriac.github.io/archex/A64_v83A_ISA/msub.xml
public static void Msub(bool sf, Bits Rm, Bits Ra, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int a = (int)UInt(Ra);
int datasize = (sf ? 64 : 32);
/* Operation */
Bits operand1 = X(datasize, n);
Bits operand2 = X(datasize, m);
Bits operand3 = X(datasize, a);
BigInteger result = UInt(operand3) - (UInt(operand1) * UInt(operand2));
X(d, result.SubBigInteger(datasize - 1, 0));
}
// https://meriac.github.io/archex/A64_v83A_ISA/smaddl.xml
public static void Smaddl(Bits Rm, Bits Ra, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int a = (int)UInt(Ra);
/* Operation */
Bits operand1 = X(32, n);
Bits operand2 = X(32, m);
Bits operand3 = X(64, a);
BigInteger result = Int(operand3, false) + (Int(operand1, false) * Int(operand2, false));
X(d, result.SubBigInteger(63, 0));
}
// https://meriac.github.io/archex/A64_v83A_ISA/umaddl.xml
public static void Umaddl(Bits Rm, Bits Ra, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int a = (int)UInt(Ra);
/* Operation */
Bits operand1 = X(32, n);
Bits operand2 = X(32, m);
Bits operand3 = X(64, a);
BigInteger result = Int(operand3, true) + (Int(operand1, true) * Int(operand2, true));
X(d, result.SubBigInteger(63, 0));
}
// https://meriac.github.io/archex/A64_v83A_ISA/smsubl.xml
public static void Smsubl(Bits Rm, Bits Ra, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int a = (int)UInt(Ra);
/* Operation */
Bits operand1 = X(32, n);
Bits operand2 = X(32, m);
Bits operand3 = X(64, a);
BigInteger result = Int(operand3, false) - (Int(operand1, false) * Int(operand2, false));
X(d, result.SubBigInteger(63, 0));
}
// https://meriac.github.io/archex/A64_v83A_ISA/umsubl.xml
public static void Umsubl(Bits Rm, Bits Ra, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
int a = (int)UInt(Ra);
/* Operation */
Bits operand1 = X(32, n);
Bits operand2 = X(32, m);
Bits operand3 = X(64, a);
BigInteger result = Int(operand3, true) - (Int(operand1, true) * Int(operand2, true));
X(d, result.SubBigInteger(63, 0));
}
// https://meriac.github.io/archex/A64_v83A_ISA/smulh.xml
public static void Smulh(Bits Rm, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
/* Operation */
Bits operand1 = X(64, n);
Bits operand2 = X(64, m);
BigInteger result = Int(operand1, false) * Int(operand2, false);
X(d, result.SubBigInteger(127, 64));
}
// https://meriac.github.io/archex/A64_v83A_ISA/umulh.xml
public static void Umulh(Bits Rm, Bits Rn, Bits Rd)
{
/* Decode */
int d = (int)UInt(Rd);
int n = (int)UInt(Rn);
int m = (int)UInt(Rm);
/* Operation */
Bits operand1 = X(64, n);
Bits operand2 = X(64, m);
BigInteger result = Int(operand1, true) * Int(operand2, true);
X(d, result.SubBigInteger(127, 64));
}
#endregion
}
/*
internal static class Advanced
{
}
*/
}