drashna/ryujinx
1
0
Fork 0
Code Activity Actions

T32: Implement B, B.cond, BL, BLX (#3155)

Browse source 
* Decoders: Make IsThumb a function of OpCode32

* OpCode32: Fix GetPc

* T32: Implement B, B.cond, BL, BLX

* rm usings
This commit is contained in:
merry 2022-03-04 22:05:08 +00:00 • committed by GitHub
parent ac21abbb9d
commit bd9ac0fdaa
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
8 changed files with 253 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

29
ARMeilleure/Decoders/OpCodeT32BImm20.cs Normal file
View file

@ -0,0 +1,29 @@
using ARMeilleure.Instructions;
namespace ARMeilleure.Decoders
{
class OpCodeT32BImm20 : OpCodeT32, IOpCode32BImm
{
public long Immediate { get; }
public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCodeT32BImm20(inst, address, opCode);
public OpCodeT32BImm20(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
{
uint pc = GetPc();
int imm11 = (opCode >> 0) & 0x7ff;
int j2 = (opCode >> 11) & 1;
int j1 = (opCode >> 13) & 1;
int imm6 = (opCode >> 16) & 0x3f;
int s = (opCode >> 26) & 1;
int imm32 = imm11 | (imm6 << 11) | (j1 << 17) | (j2 << 18) | (s << 19);
imm32 = (imm32 << 13) >> 12;
Immediate = pc + imm32;
Cond = (Condition)((opCode >> 22) & 0xf);
}
}
}