36e8e074c9
* Fix and simplify TranslatorCache * Fix some assignment alignments, remove some unused usings * Changes to ILEmitter, separate it from ILEmitterCtx * Rename ILEmitter to ILMethodBuilder * Rename LdrLit and *_Fix opcodes * Revert TranslatorCache impl to the more performant one, fix a few issues with it * Allow EmitOpCode to be called even after everything has been emitted * Make Emit and AdvanceOpCode private, simplify it a bit now that it starts emiting from the entry point * Remove unneeded temp use * Add missing exit call on TestExclusive * Use better hash * Implement the == and != operators
97 lines
No EOL
2.3 KiB
C#
97 lines
No EOL
2.3 KiB
C#
using ChocolArm64.Instructions;
|
|
|
|
namespace ChocolArm64.Decoders
|
|
{
|
|
class OpCodeSimdMemSs64 : OpCodeMemReg64, IOpCodeSimd64
|
|
{
|
|
public int SElems { get; private set; }
|
|
public int Index { get; private set; }
|
|
public bool Replicate { get; private set; }
|
|
public bool WBack { get; private set; }
|
|
|
|
public OpCodeSimdMemSs64(Inst inst, long position, int opCode) : base(inst, position, opCode)
|
|
{
|
|
int size = (opCode >> 10) & 3;
|
|
int s = (opCode >> 12) & 1;
|
|
int sElems = (opCode >> 12) & 2;
|
|
int scale = (opCode >> 14) & 3;
|
|
int l = (opCode >> 22) & 1;
|
|
int q = (opCode >> 30) & 1;
|
|
|
|
sElems |= (opCode >> 21) & 1;
|
|
|
|
sElems++;
|
|
|
|
int index = (q << 3) | (s << 2) | size;
|
|
|
|
switch (scale)
|
|
{
|
|
case 1:
|
|
{
|
|
if ((size & 1) != 0)
|
|
{
|
|
inst = Inst.Undefined;
|
|
|
|
return;
|
|
}
|
|
|
|
index >>= 1;
|
|
|
|
break;
|
|
}
|
|
|
|
case 2:
|
|
{
|
|
if ((size & 2) != 0 ||
|
|
((size & 1) != 0 && s != 0))
|
|
{
|
|
inst = Inst.Undefined;
|
|
|
|
return;
|
|
}
|
|
|
|
if ((size & 1) != 0)
|
|
{
|
|
index >>= 3;
|
|
|
|
scale = 3;
|
|
}
|
|
else
|
|
{
|
|
index >>= 2;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case 3:
|
|
{
|
|
if (l == 0 || s != 0)
|
|
{
|
|
inst = Inst.Undefined;
|
|
|
|
return;
|
|
}
|
|
|
|
scale = size;
|
|
|
|
Replicate = true;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
Index = index;
|
|
SElems = sElems;
|
|
Size = scale;
|
|
|
|
Extend64 = false;
|
|
|
|
WBack = ((opCode >> 23) & 1) != 0;
|
|
|
|
RegisterSize = q != 0
|
|
? State.RegisterSize.Simd128
|
|
: State.RegisterSize.Simd64;
|
|
}
|
|
}
|
|
} |