diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1995-10-18 13:54:04 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1995-10-18 13:54:04 +0000 |
| commit | c6ce6fc6e5012dcb2986c6a207fd7903625c4e77 (patch) | |
| tree | 5f6e0678445e83400cc6738cea51aad13a2cb233 /sys | |
| parent | c5a5b68180a6c8f2564e2e7dd4f23a6599d4a8e7 (diff) | |
interleave ld and operations for better performance
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/sparc/sparc/in_cksum.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/sys/arch/sparc/sparc/in_cksum.c b/sys/arch/sparc/sparc/in_cksum.c index d507f0d1aa9..9e03990bacb 100644 --- a/sys/arch/sparc/sparc/in_cksum.c +++ b/sys/arch/sparc/sparc/in_cksum.c @@ -66,19 +66,18 @@ #define Asm __asm __volatile #define ADD32 Asm(" ld [%2+28],%%i0; ld [%2+24],%%i1; \ ld [%2+20],%%i2; ld [%2+16],%%i3; \ - ld [%2+12],%%i4; ld [%2+8],%%i5; \ - ld [%2+4],%%g3; ld [%2],%%g4; \ addcc %0,%%i0,%0; addxcc %0,%%i1,%0; \ + ld [%2+12],%%i4; ld [%2+8],%%i5; \ addxcc %0,%%i2,%0; addxcc %0,%%i3,%0; \ + ld [%2+4],%%i0; ld [%2],%%i1; \ addxcc %0,%%i4,%0; addxcc %0,%%i5,%0; \ - addxcc %0,%%g3,%0; addxcc %0,%%g4,%0; \ + addxcc %0,%%i0,%0; addxcc %0,%%i1,%0; \ addxcc %0,0,%0" \ : "=r" (sum) : "0" (sum), "r" (w) \ - : "%i0", "%i1", "%i2", "%i3", \ - "%i4", "%i5", "%g3", "%g4") + : "%i0", "%i1", "%i2", "%i3", "%i4", "%i5") #define ADD16 Asm(" ld [%2+12],%%i0; ld [%2+8],%%i1; \ - ld [%2+4],%%i2; ld [%2],%%i3; \ addcc %0,%%i0,%0; addxcc %0,%%i1,%0; \ + ld [%2+4],%%i2; ld [%2],%%i3; \ addxcc %0,%%i2,%0; addxcc %0,%%i3,%0; \ addxcc %0,0,%0" \ : "=r" (sum) : "0" (sum), "r" (w) \ |