mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-11-08 11:58:34 +00:00
98e05ee4b7
* Decoders: Add InITBlock argument
* OpCodeTable: Minor cleanup
* OpCodeTable: Remove existing thumb instruction implementations
* OpCodeTable: Prepare for thumb instructions
* OpCodeTables: Improve thumb fast lookup
* Tests: Prepare for thumb tests
* T16: Implement BX
* T16: Implement LSL/LSR/ASR (imm)
* T16: Implement ADDS, SUBS (reg)
* T16: Implement ADDS, SUBS (3-bit immediate)
* T16: Implement MOVS, CMP, ADDS, SUBS (8-bit immediate)
* T16: Implement ANDS, EORS, LSLS, LSRS, ASRS, ADCS, SBCS, RORS, TST, NEGS, CMP, CMN, ORRS, MULS, BICS, MVNS (low registers)
* T16: Implement ADD, CMP, MOV (high reg)
* T16: Implement BLX (reg)
* T16: Implement LDR (literal)
* T16: Implement {LDR,STR}{,H,B,SB,SH} (register)
* T16: Implement {LDR,STR}{,B,H} (immediate)
* T16: Implement LDR/STR (SP)
* T16: Implement ADR
* T16: Implement Add to SP (immediate)
* T16: Implement ADD/SUB (SP)
* T16: Implement SXTH, SXTB, UXTH, UTXB
* T16: Implement CBZ, CBNZ
* T16: Implement PUSH, POP
* T16: Implement REV, REV16, REVSH
* T16: Implement NOP
* T16: Implement LDM, STM
* T16: Implement SVC
* T16: Implement B (conditional)
* T16: Implement B (unconditional)
* T16: Implement IT
* fixup! T16: Implement ADD/SUB (SP)
* fixup! T16: Implement Add to SP (immediate)
* fixup! T16: Implement IT
* CpuTestThumb: Add randomized tests
* Remove inITBlock argument
* Address nits
* Use index to handle IfThenBlockState
* Reduce line noise
* fixup
* nit
43 lines
1.4 KiB
C#
43 lines
1.4 KiB
C#
using ARMeilleure.Instructions;
|
|
using ARMeilleure.State;
|
|
using System;
|
|
using System.Numerics;
|
|
|
|
namespace ARMeilleure.Decoders
|
|
{
|
|
class OpCodeT16MemStack : OpCodeT16, IOpCode32MemMult
|
|
{
|
|
public int Rn => RegisterAlias.Aarch32Sp;
|
|
public int RegisterMask { get; }
|
|
public int PostOffset { get; }
|
|
public bool IsLoad { get; }
|
|
public int Offset { get; }
|
|
|
|
public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCodeT16MemStack(inst, address, opCode);
|
|
|
|
public OpCodeT16MemStack(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
|
|
{
|
|
int extra = (opCode >> 8) & 1;
|
|
int regCount = BitOperations.PopCount((uint)opCode & 0x1ff);
|
|
|
|
switch (inst.Name)
|
|
{
|
|
case InstName.Push:
|
|
RegisterMask = (opCode & 0xff) | (extra << 14);
|
|
IsLoad = false;
|
|
Offset = -4 * regCount;
|
|
PostOffset = -4 * regCount;
|
|
break;
|
|
case InstName.Pop:
|
|
RegisterMask = (opCode & 0xff) | (extra << 15);
|
|
IsLoad = true;
|
|
Offset = 0;
|
|
PostOffset = 4 * regCount;
|
|
break;
|
|
default:
|
|
throw new InvalidOperationException();
|
|
}
|
|
}
|
|
}
|
|
}
|