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VertexLoaderX64: suggestions by @magumagu 

- avoid register merges
- avoid redundant MOV
This commit is contained in:
Tillmann Karras 2015-01-15 02:48:28 +01:00
parent b27ba3802e
commit f5545477e3
1 changed files with 9 additions and 10 deletions
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19
Source/Core/VideoCommon/VertexLoaderX64.cpp
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@ -41,10 +41,10 @@ OpArg VertexLoaderX64::GetVertexAddr(int array, u64 attribute)
}
else
{
MOVZX(64, 16, scratch1, data);
MOV(16, R(scratch1), data);
m_src_ofs += 2;
// Convert to little-endian.
ROR(16, R(scratch1), Imm8(8));
BSWAP(16, scratch1);
MOVZX(64, 16, scratch1, R(scratch1));
}
if (array == ARRAY_POSITION)
{
@ -173,17 +173,16 @@ void VertexLoaderX64::ReadColor(OpArg data, u64 attribute, int format, int eleme
MOV(32, R(scratch3), R(scratch1));
SHL(32, R(scratch1), Imm8(16));
AND(32, R(scratch1), Imm32(0xF8000000));
MOV(32, R(scratch2), R(scratch1));
MOV(32, R(scratch1), R(scratch3));
SHL(32, R(scratch1), Imm8(13));
AND(32, R(scratch1), Imm32(0x00FC0000));
OR(32, R(scratch2), R(scratch1));
MOV(32, R(scratch2), R(scratch3));
SHL(32, R(scratch2), Imm8(13));
AND(32, R(scratch2), Imm32(0x00FC0000));
OR(32, R(scratch1), R(scratch2));
SHL(32, R(scratch3), Imm8(11));
AND(32, R(scratch3), Imm32(0x0000F800));
OR(32, R(scratch2), R(scratch3));
MOV(32, R(scratch1), R(scratch2));
OR(32, R(scratch1), R(scratch3));
MOV(32, R(scratch2), R(scratch1));
}
SHR(32, R(scratch1), Imm8(5));