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ReorderingMTGS: Linux memcpy attempt #1527, Action! 

git-svn-id: http://pcsx2.googlecode.com/svn/branches/ReorderingMTGS@3489 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
Jake.Stine 2010-07-14 14:40:13 +00:00
parent e793f91993
commit c8f16a1cde
1 changed files with 7 additions and 6 deletions
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13
common/include/Utilities/MemcpyFast.h
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@ -48,10 +48,11 @@
//"mov ecx, [%[dest]]\n" //"mov ecx, [%[dest]]\n"
//"mov edx, [%[src]]\n" //"mov edx, [%[src]]\n"
//"mov eax, [%[qwc]]\n" // keep a copy of count //"mov eax, [%[qwc]]\n" // keep a copy of count
"cmp %[qwc], 1\n" "mov eax, %[qwc]\n"
"jbe memcpy_qwc_1\n" // only one 16 byte block to copy? "shr eax, 1\n"
"jz memcpy_qwc_1\n" // only one 16 byte block to copy?
"cmp %[qwc], 128\n" // "IN_CACHE_COPY/16" "cmp %[qwc], 64\n" // "IN_CACHE_COPY/32"
"jb memcpy_qwc_loop1\n" // small copies should be cached (definite speedup --air) "jb memcpy_qwc_loop1\n" // small copies should be cached (definite speedup --air)
"memcpy_qwc_loop2:\n" // 32-byte blocks, uncached copy "memcpy_qwc_loop2:\n" // 32-byte blocks, uncached copy
@ -68,7 +69,7 @@
"add %[src],32\n" // update source pointer "add %[src],32\n" // update source pointer
"add %[dest],32\n" // update destination pointer "add %[dest],32\n" // update destination pointer
"sub %[qwc],2\n" "sub eax,1\n"
"jnz memcpy_qwc_loop2\n" // last 64-byte block? "jnz memcpy_qwc_loop2\n" // last 64-byte block?
"sfence\n" // flush the write buffer "sfence\n" // flush the write buffer
"jmp memcpy_qwc_1\n" "jmp memcpy_qwc_1\n"
@ -91,7 +92,7 @@
"add %[src],32\n" // update source pointer "add %[src],32\n" // update source pointer
"add %[dest],32\n" // update destination pointer "add %[dest],32\n" // update destination pointer
"sub %[qwc],2\n" "sub eax,1\n"
"jnz memcpy_qwc_loop1\n" // last 64-byte block? "jnz memcpy_qwc_loop1\n" // last 64-byte block?
"memcpy_qwc_1:\n" "memcpy_qwc_1:\n"
@ -107,7 +108,7 @@
".att_syntax\n" ".att_syntax\n"
: "=&r"(dest), "=&r"(src), "=&r"(qwc) : "=&r"(dest), "=&r"(src), "=&r"(qwc)
: [dest]"0"(dest), [src]"1"(src), [qwc]"2"(qwc) : [dest]"0"(dest), [src]"1"(src), [qwc]"2"(qwc)
: "memory", "mm0", "mm1", "mm2", "mm3" : "memory", "eax", "mm0", "mm1", "mm2", "mm3"
); );
} }
#else #else