2022-03-04 22:05:08 +00:00
|
|
|
|
using ARMeilleure.Instructions;
|
|
|
|
|
|
|
|
|
|
|
|
namespace ARMeilleure.Decoders
|
|
|
|
|
|
{
|
|
|
|
|
|
class OpCodeT32BImm24 : OpCodeT32, IOpCode32BImm
|
|
|
|
|
|
{
|
|
|
|
|
|
public long Immediate { get; }
|
|
|
|
|
|
|
|
|
|
|
|
public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCodeT32BImm24(inst, address, opCode);
|
|
|
|
|
|
|
|
|
|
|
|
public OpCodeT32BImm24(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
|
|
|
|
|
|
{
|
|
|
|
|
|
uint pc = GetPc();
|
|
|
|
|
|
|
|
|
|
|
|
if (inst.Name == InstName.Blx)
|
|
|
|
|
|
{
|
|
|
|
|
|
pc &= ~3u;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
int imm11 = (opCode >> 0) & 0x7ff;
|
|
|
|
|
|
int j2 = (opCode >> 11) & 1;
|
|
|
|
|
|
int j1 = (opCode >> 13) & 1;
|
|
|
|
|
|
int imm10 = (opCode >> 16) & 0x3ff;
|
|
|
|
|
|
int s = (opCode >> 26) & 1;
|
|
|
|
|
|
|
|
|
|
|
|
int i1 = j1 ^ s ^ 1;
|
|
|
|
|
|
int i2 = j2 ^ s ^ 1;
|
|
|
|
|
|
|
|
|
|
|
|
int imm32 = imm11 | (imm10 << 11) | (i2 << 21) | (i1 << 22) | (s << 23);
|
2022-09-11 01:51:00 +00:00
|
|
|
|
imm32 = (imm32 << 8) >> 7;
|
2022-03-04 22:05:08 +00:00
|
|
|
|
|
|
|
|
|
|
Immediate = pc + imm32;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
