1682 lines
50 KiB
C#
1682 lines
50 KiB
C#
// https://github.com/LDj3SNuD/ARM_v8-A_AArch64_Instructions_Tester/blob/master/Tester/Instructions.cs
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// https://meriac.github.io/archex/A64_v83A_ISA/index.xml
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/* https://meriac.github.io/archex/A64_v83A_ISA/fpsimdindex.xml */
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using System.Numerics;
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namespace Ryujinx.Tests.Cpu.Tester
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{
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using Types;
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using static AArch64;
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using static Shared;
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internal static class Base
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{
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#region "Alu"
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// https://meriac.github.io/archex/A64_v83A_ISA/cls_int.xml
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public static void Cls(bool sf, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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/* Operation */
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Bits operand1 = X(datasize, n);
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BigInteger result = (BigInteger)CountLeadingSignBits(operand1);
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X(d, result.SubBigInteger(datasize - 1, 0));
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/clz_int.xml
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public static void Clz(bool sf, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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/* Operation */
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Bits operand1 = X(datasize, n);
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BigInteger result = (BigInteger)CountLeadingZeroBits(operand1);
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X(d, result.SubBigInteger(datasize - 1, 0));
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/rbit_int.xml
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public static void Rbit(bool sf, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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/* Operation */
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Bits result = new Bits(datasize);
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Bits operand = X(datasize, n);
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for (int i = 0; i <= datasize - 1; i++)
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{
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result[datasize - 1 - i] = operand[i];
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}
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X(d, result);
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/rev16_int.xml
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public static void Rev16(bool sf, Bits Rn, Bits Rd)
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{
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/* Bits opc = "01"; */
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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int container_size = 16;
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/* Operation */
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Bits result = new Bits(datasize);
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Bits operand = X(datasize, n);
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int containers = datasize / container_size;
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int elements_per_container = container_size / 8;
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int index = 0;
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int rev_index;
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for (int c = 0; c <= containers - 1; c++)
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{
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rev_index = index + ((elements_per_container - 1) * 8);
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for (int e = 0; e <= elements_per_container - 1; e++)
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{
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result[rev_index + 7, rev_index] = operand[index + 7, index];
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index = index + 8;
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rev_index = rev_index - 8;
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}
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}
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X(d, result);
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/rev32_int.xml
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// (https://meriac.github.io/archex/A64_v83A_ISA/rev.xml)
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public static void Rev32(bool sf, Bits Rn, Bits Rd)
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{
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/* Bits opc = "10"; */
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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int container_size = 32;
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/* Operation */
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Bits result = new Bits(datasize);
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Bits operand = X(datasize, n);
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int containers = datasize / container_size;
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int elements_per_container = container_size / 8;
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int index = 0;
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int rev_index;
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for (int c = 0; c <= containers - 1; c++)
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{
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rev_index = index + ((elements_per_container - 1) * 8);
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for (int e = 0; e <= elements_per_container - 1; e++)
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{
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result[rev_index + 7, rev_index] = operand[index + 7, index];
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index = index + 8;
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rev_index = rev_index - 8;
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}
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}
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X(d, result);
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/rev64_rev.xml
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// (https://meriac.github.io/archex/A64_v83A_ISA/rev.xml)
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public static void Rev64(Bits Rn, Bits Rd)
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{
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/* Bits opc = "11"; */
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int container_size = 64;
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/* Operation */
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Bits result = new Bits(64);
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Bits operand = X(64, n);
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int containers = 64 / container_size;
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int elements_per_container = container_size / 8;
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int index = 0;
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int rev_index;
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for (int c = 0; c <= containers - 1; c++)
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{
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rev_index = index + ((elements_per_container - 1) * 8);
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for (int e = 0; e <= elements_per_container - 1; e++)
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{
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result[rev_index + 7, rev_index] = operand[index + 7, index];
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index = index + 8;
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rev_index = rev_index - 8;
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}
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}
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X(d, result);
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}
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#endregion
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#region "AluImm"
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// https://meriac.github.io/archex/A64_v83A_ISA/add_addsub_imm.xml
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public static void Add_Imm(bool sf, Bits shift, Bits imm12, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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Bits imm;
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switch (shift)
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{
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default:
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case Bits bits when bits == "00":
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imm = ZeroExtend(imm12, datasize);
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break;
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case Bits bits when bits == "01":
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imm = ZeroExtend(Bits.Concat(imm12, Zeros(12)), datasize);
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break;
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/* when '1x' ReservedValue(); */
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}
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/* Operation */
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Bits result;
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Bits operand1 = (n == 31 ? SP(datasize) : X(datasize, n));
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(result, _) = AddWithCarry(datasize, operand1, imm, false);
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if (d == 31)
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{
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SP(result);
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}
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else
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{
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X(d, result);
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}
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/adds_addsub_imm.xml
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public static void Adds_Imm(bool sf, Bits shift, Bits imm12, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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Bits imm;
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switch (shift)
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{
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default:
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case Bits bits when bits == "00":
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imm = ZeroExtend(imm12, datasize);
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break;
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case Bits bits when bits == "01":
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imm = ZeroExtend(Bits.Concat(imm12, Zeros(12)), datasize);
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break;
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/* when '1x' ReservedValue(); */
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}
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/* Operation */
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Bits result;
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Bits operand1 = (n == 31 ? SP(datasize) : X(datasize, n));
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Bits nzcv;
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(result, nzcv) = AddWithCarry(datasize, operand1, imm, false);
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PSTATE.NZCV(nzcv);
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X(d, result);
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/and_log_imm.xml
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public static void And_Imm(bool sf, bool N, Bits immr, Bits imms, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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Bits imm;
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/* if sf == '0' && N != '0' then ReservedValue(); */
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(imm, _) = DecodeBitMasks(datasize, N, imms, immr, true);
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/* Operation */
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Bits operand1 = X(datasize, n);
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Bits result = AND(operand1, imm);
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if (d == 31)
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{
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SP(result);
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}
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else
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{
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X(d, result);
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}
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/ands_log_imm.xml
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public static void Ands_Imm(bool sf, bool N, Bits immr, Bits imms, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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Bits imm;
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/* if sf == '0' && N != '0' then ReservedValue(); */
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(imm, _) = DecodeBitMasks(datasize, N, imms, immr, true);
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/* Operation */
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Bits operand1 = X(datasize, n);
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Bits result = AND(operand1, imm);
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PSTATE.NZCV(result[datasize - 1], IsZeroBit(result), false, false);
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X(d, result);
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/eor_log_imm.xml
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public static void Eor_Imm(bool sf, bool N, Bits immr, Bits imms, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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Bits imm;
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/* if sf == '0' && N != '0' then ReservedValue(); */
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(imm, _) = DecodeBitMasks(datasize, N, imms, immr, true);
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/* Operation */
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Bits operand1 = X(datasize, n);
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Bits result = EOR(operand1, imm);
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if (d == 31)
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{
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SP(result);
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}
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else
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{
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X(d, result);
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}
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/orr_log_imm.xml
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public static void Orr_Imm(bool sf, bool N, Bits immr, Bits imms, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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Bits imm;
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/* if sf == '0' && N != '0' then ReservedValue(); */
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(imm, _) = DecodeBitMasks(datasize, N, imms, immr, true);
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/* Operation */
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Bits operand1 = X(datasize, n);
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Bits result = OR(operand1, imm);
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if (d == 31)
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{
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SP(result);
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}
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else
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{
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X(d, result);
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}
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/sub_addsub_imm.xml
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public static void Sub_Imm(bool sf, Bits shift, Bits imm12, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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Bits imm;
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switch (shift)
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{
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default:
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case Bits bits when bits == "00":
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imm = ZeroExtend(imm12, datasize);
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break;
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case Bits bits when bits == "01":
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imm = ZeroExtend(Bits.Concat(imm12, Zeros(12)), datasize);
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break;
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/* when '1x' ReservedValue(); */
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}
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/* Operation */
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Bits result;
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Bits operand1 = (n == 31 ? SP(datasize) : X(datasize, n));
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Bits operand2 = NOT(imm);
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(result, _) = AddWithCarry(datasize, operand1, operand2, true);
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if (d == 31)
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{
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SP(result);
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}
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else
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{
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X(d, result);
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}
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/subs_addsub_imm.xml
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public static void Subs_Imm(bool sf, Bits shift, Bits imm12, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int datasize = (sf ? 64 : 32);
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Bits imm;
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switch (shift)
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{
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default:
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case Bits bits when bits == "00":
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imm = ZeroExtend(imm12, datasize);
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break;
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case Bits bits when bits == "01":
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imm = ZeroExtend(Bits.Concat(imm12, Zeros(12)), datasize);
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break;
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/* when '1x' ReservedValue(); */
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}
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/* Operation */
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Bits result;
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Bits operand1 = (n == 31 ? SP(datasize) : X(datasize, n));
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Bits operand2 = NOT(imm);
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Bits nzcv;
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(result, nzcv) = AddWithCarry(datasize, operand1, operand2, true);
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PSTATE.NZCV(nzcv);
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X(d, result);
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}
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#endregion
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#region "AluRs"
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// https://meriac.github.io/archex/A64_v83A_ISA/adc.xml
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public static void Adc(bool sf, Bits Rm, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int m = (int)UInt(Rm);
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int datasize = (sf ? 64 : 32);
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/* Operation */
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Bits result;
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Bits operand1 = X(datasize, n);
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Bits operand2 = X(datasize, m);
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(result, _) = AddWithCarry(datasize, operand1, operand2, PSTATE.C);
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X(d, result);
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/adcs.xml
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public static void Adcs(bool sf, Bits Rm, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int m = (int)UInt(Rm);
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int datasize = (sf ? 64 : 32);
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/* Operation */
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Bits result;
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Bits operand1 = X(datasize, n);
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Bits operand2 = X(datasize, m);
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Bits nzcv;
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(result, nzcv) = AddWithCarry(datasize, operand1, operand2, PSTATE.C);
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PSTATE.NZCV(nzcv);
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X(d, result);
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/add_addsub_shift.xml
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public static void Add_Rs(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
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{
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/* Decode */
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int d = (int)UInt(Rd);
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int n = (int)UInt(Rn);
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int m = (int)UInt(Rm);
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int datasize = (sf ? 64 : 32);
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/* if shift == '11' then ReservedValue(); */
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/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
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ShiftType shift_type = DecodeShift(shift);
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int shift_amount = (int)UInt(imm6);
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/* Operation */
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Bits result;
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Bits operand1 = X(datasize, n);
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Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
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(result, _) = AddWithCarry(datasize, operand1, operand2, false);
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X(d, result);
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}
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// https://meriac.github.io/archex/A64_v83A_ISA/adds_addsub_shift.xml
|
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public static void Adds_Rs(bool sf, Bits shift, Bits Rm, Bits imm6, Bits Rn, Bits Rd)
|
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{
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/* Decode */
|
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int d = (int)UInt(Rd);
|
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int n = (int)UInt(Rn);
|
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int m = (int)UInt(Rm);
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int datasize = (sf ? 64 : 32);
|
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/* if shift == '11' then ReservedValue(); */
|
||
/* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
|
||
|
||
ShiftType shift_type = DecodeShift(shift);
|
||
int shift_amount = (int)UInt(imm6);
|
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|
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/* Operation */
|
||
Bits result;
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||
Bits operand1 = X(datasize, n);
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||
Bits operand2 = ShiftReg(datasize, m, shift_type, shift_amount);
|
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Bits nzcv;
|
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|
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(result, nzcv) = AddWithCarry(datasize, operand1, operand2, false);
|
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PSTATE.NZCV(nzcv);
|
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X(d, result);
|
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}
|
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|
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// 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.Modulus Operator (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.Modulus Operator (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.Modulus Operator (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.Modulus Operator (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
|
||
{
|
||
}
|
||
*/
|
||
}
|