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Implement some ARM32 memory instructions and CMP (#565)

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* Implement ARM32 memory instructions: LDM, LDR, LDRB, LDRD, LDRH, LDRSB, LDRSH, STM, STR, STRB, STRD, STRH (immediate and register + immediate variants), implement CMP (immediate and register shifted by immediate variants)

* Rename some opcode classes and flag masks for consistency

* Fix a few suboptimal ARM32 codegen issues, only loads should be considered on decoder when checking if Rt == PC, and only NZCV flags should be considered for comparison optimizations

* Take into account Rt2 for LDRD instructions aswell when checking if the instruction changes PC

* Re-align arm32 instructions on the opcode table
This commit is contained in:
gdkchan 2019-01-29 13:06:11 -03:00 • committed by GitHub
parent 8f7fcede7f
commit c1bdf19061
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GPG key ID: 4AEE18F83AFDEB23
29 changed files with 686 additions and 87 deletions
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38
ChocolArm64/OpCodeTable.cs
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@ -37,18 +37,32 @@ namespace ChocolArm64
{
#region "OpCode Table (AArch32)"
//Integer
SetA32("<<<<0010100xxxxxxxxxxxxxxxxxxxxx", InstEmit32.Add, typeof(OpCodeAluImm32));
SetA32("<<<<0000100xxxxxxxxxxxxxxxx0xxxx", InstEmit32.Add, typeof(OpCodeAluRsImm32));
SetA32("<<<<1010xxxxxxxxxxxxxxxxxxxxxxxx", InstEmit32.B, typeof(OpCodeBImm32));
SetA32("<<<<1011xxxxxxxxxxxxxxxxxxxxxxxx", InstEmit32.Bl, typeof(OpCodeBImm32));
SetA32("1111101xxxxxxxxxxxxxxxxxxxxxxxxx", InstEmit32.Blx, typeof(OpCodeBImm32));
SetA32("<<<<000100101111111111110001xxxx", InstEmit32.Bx, typeof(OpCodeBReg32));
SetT32( "010001110xxxx000", InstEmit32.Bx, typeof(OpCodeBRegT16));
SetA32("<<<<0011101x0000xxxxxxxxxxxxxxxx", InstEmit32.Mov, typeof(OpCodeAluImm32));
SetA32("<<<<0001101x0000xxxxxxxxxxx0xxxx", InstEmit32.Mov, typeof(OpCodeAluRsImm32));
SetT32( "00100xxxxxxxxxxx", InstEmit32.Mov, typeof(OpCodeAluImm8T16));
SetA32("<<<<0010010xxxxxxxxxxxxxxxxxxxxx", InstEmit32.Sub, typeof(OpCodeAluImm32));
SetA32("<<<<0000010xxxxxxxxxxxxxxxx0xxxx", InstEmit32.Sub, typeof(OpCodeAluRsImm32));
SetA32("<<<<0010100xxxxxxxxxxxxxxxxxxxxx", InstEmit32.Add, typeof(OpCode32AluImm));
SetA32("<<<<0000100xxxxxxxxxxxxxxxx0xxxx", InstEmit32.Add, typeof(OpCode32AluRsImm));
SetA32("<<<<1010xxxxxxxxxxxxxxxxxxxxxxxx", InstEmit32.B, typeof(OpCode32BImm));
SetA32("<<<<1011xxxxxxxxxxxxxxxxxxxxxxxx", InstEmit32.Bl, typeof(OpCode32BImm));
SetA32("1111101xxxxxxxxxxxxxxxxxxxxxxxxx", InstEmit32.Blx, typeof(OpCode32BImm));
SetA32("<<<<000100101111111111110001xxxx", InstEmit32.Bx, typeof(OpCode32BReg));
SetT32("010001110xxxx000", InstEmit32.Bx, typeof(OpCodeT16BReg));
SetA32("<<<<00110101xxxx0000xxxxxxxxxxxx", InstEmit32.Cmp, typeof(OpCode32AluImm));
SetA32("<<<<00010101xxxx0000xxxxxxx0xxxx", InstEmit32.Cmp, typeof(OpCode32AluRsImm));
SetA32("<<<<100xx0x1xxxxxxxxxxxxxxxxxxxx", InstEmit32.Ldm, typeof(OpCode32MemMult));
SetA32("<<<<010xx0x1xxxxxxxxxxxxxxxxxxxx", InstEmit32.Ldr, typeof(OpCode32MemImm));
SetA32("<<<<010xx1x1xxxxxxxxxxxxxxxxxxxx", InstEmit32.Ldrb, typeof(OpCode32MemImm));
SetA32("<<<<000xx1x0xxxxxxxxxxxx1101xxxx", InstEmit32.Ldrd, typeof(OpCode32MemImm8));
SetA32("<<<<000xx1x1xxxxxxxxxxxx1011xxxx", InstEmit32.Ldrh, typeof(OpCode32MemImm8));
SetA32("<<<<000xx1x1xxxxxxxxxxxx1101xxxx", InstEmit32.Ldrsb, typeof(OpCode32MemImm8));
SetA32("<<<<000xx1x1xxxxxxxxxxxx1111xxxx", InstEmit32.Ldrsh, typeof(OpCode32MemImm8));
SetA32("<<<<0011101x0000xxxxxxxxxxxxxxxx", InstEmit32.Mov, typeof(OpCode32AluImm));
SetA32("<<<<0001101x0000xxxxxxxxxxx0xxxx", InstEmit32.Mov, typeof(OpCode32AluRsImm));
SetT32("00100xxxxxxxxxxx", InstEmit32.Mov, typeof(OpCodeT16AluImm8));
SetA32("<<<<100xx0x0xxxxxxxxxxxxxxxxxxxx", InstEmit32.Stm, typeof(OpCode32MemMult));
SetA32("<<<<010xx0x0xxxxxxxxxxxxxxxxxxxx", InstEmit32.Str, typeof(OpCode32MemImm));
SetA32("<<<<010xx1x0xxxxxxxxxxxxxxxxxxxx", InstEmit32.Strb, typeof(OpCode32MemImm));
SetA32("<<<<000xx1x0xxxxxxxxxxxx1111xxxx", InstEmit32.Strd, typeof(OpCode32MemImm8));
SetA32("<<<<000xx1x0xxxxxxxxxxxx1011xxxx", InstEmit32.Strh, typeof(OpCode32MemImm8));
SetA32("<<<<0010010xxxxxxxxxxxxxxxxxxxxx", InstEmit32.Sub, typeof(OpCode32AluImm));
SetA32("<<<<0000010xxxxxxxxxxxxxxxx0xxxx", InstEmit32.Sub, typeof(OpCode32AluRsImm));
#endregion
#region "OpCode Table (AArch64)"