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DSPJitUtil: Micro-optimize increment_addr_reg 

2 bytes shorter.

Before:
0:  41 0f b7 c2             movzx  eax,r10w
4:  41 89 c5                mov    r13d,eax
7:  83 c0 01                add    eax,0x1

After:
0:  45 0f b7 ea             movzx  r13d,r10w
4:  41 8d 45 01             lea    eax,[r13+0x1]
This commit is contained in:
Sintendo 2019-06-05 23:23:22 +02:00
parent 78e566aaa5
commit 9b6f2859a4
1 changed files with 3 additions and 4 deletions
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7
Source/Core/Core/DSP/Jit/x64/DSPJitUtil.cpp
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@ -317,12 +317,11 @@ void DSPEmitter::increment_addr_reg(int reg)
m_gpr.PutReg(DSP_REG_WR0 + reg, false);
const OpArg ar_reg = m_gpr.GetReg(DSP_REG_AR0 + reg);
MOVZX(32, 16, EAX, ar_reg);
X64Reg tmp1 = m_gpr.GetFreeXReg();
MOVZX(32, 16, tmp1, ar_reg);
// u32 nar = ar + 1;
MOV(32, R(tmp1), R(EAX));
ADD(32, R(EAX), Imm8(1));
LEA(32, EAX, MDisp(tmp1, 1));
// if ((nar ^ ar) > ((wr | 1) << 1))
// nar -= wr + 1;