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JIT: 

- a bit optimized OP_BX_THUMB (with Rm=R15);
This commit is contained in:
mtabachenko 2013-07-18 12:56:30 +00:00
parent 42f5338e56
commit 06a70e4b0a
1 changed files with 4 additions and 6 deletions
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10
desmume/src/arm_jit.cpp
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@ -3760,13 +3760,11 @@ static int op_bx_thumb(Mem srcreg, bool blx, bool test_thumb)
static int op_bx_thumbR15()
{
GpVar dst = c.newGpVar(kX86VarTypeGpd);
GpVar thumb = c.newGpVar(kX86VarTypeGpd);
c.mov(dst, bb_r15);
const u32 r15 = (bb_r15 & 0xFFFFFFFC);
c.mov(cpu_ptr(instruct_adr), Imm(r15));
c.mov(reg_ptr(15), Imm(r15));
c.and_(cpu_ptr(CPSR), (u32)~(1<< 5));
c.and_(dst, 0xFFFFFFFC);
c.mov(reg_ptr(15), dst);
c.mov(cpu_ptr(instruct_adr), dst);
return 1;
}