patch-2.1.53 linux/arch/sparc64/lib/VIScsum.S
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- Lines: 440
- Date:
Thu Sep 4 12:54:48 1997
- Orig file:
v2.1.52/linux/arch/sparc64/lib/VIScsum.S
- Orig date:
Mon Aug 18 18:19:45 1997
diff -u --recursive --new-file v2.1.52/linux/arch/sparc64/lib/VIScsum.S linux/arch/sparc64/lib/VIScsum.S
@@ -1,439 +1,3 @@
-/* $Id: VIScsum.S,v 1.1 1997/07/16 10:12:02 jj Exp $
- * VIScsum.S: High bandwidth IP checksumming utilizing the UltraSparc
- * Visual Instruction Set.
- *
- * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- *
- * Based on older sparc32/sparc64 checksum.S, which is:
- *
- * Copyright(C) 1995 Linus Torvalds
- * Copyright(C) 1995 Miguel de Icaza
- * Copyright(C) 1996,1997 David S. Miller
- * derived from:
- * Linux/Alpha checksum c-code
- * Linux/ix86 inline checksum assembly
- * RFC1071 Computing the Internet Checksum (esp. Jacobsons m68k code)
- * David Mosberger-Tang for optimized reference c-code
- * BSD4.4 portable checksum routine
- */
-
-#ifdef __sparc_v9__
-#define STACKOFF 2175
-#else
-#define STACKOFF 64
-#endif
-
-#ifdef __KERNEL__
-#include <asm/head.h>
-#include <asm/asi.h>
-#else
-#define ASI_BLK_P 0xf0
-#define FRPS_FEF 0x04
-#endif
-
-/* Dobrou noc, SunSoft engineers. Spete sladce.
- * This has a couple of tricks in and those
- * tricks are UltraLinux trade secrets :))
- */
-
-#define START_THE_TRICK(fz,f0,f2,f4,f6,f8,f10) \
- fcmpgt32 %fz, %f0, %g1 /* FPM Group */; \
- fcmpgt32 %fz, %f2, %g2 /* FPM Group */; \
- fcmpgt32 %fz, %f4, %g3 /* FPM Group */; \
- fcmpgt32 %fz, %f6, %g5 /* FPM Group */; \
- inc %g1 /* IEU0 */; \
- fcmpgt32 %fz, %f8, %g7 /* FPM Group */; \
- srl %g1, 1, %g1 /* IEU0 */; \
- inc %g2 /* IEU1 */; \
- fcmpgt32 %fz, %f10, %o3 /* FPM Group */; \
- srl %g2, 1, %g2 /* IEU0 */; \
- add %o2, %g1, %o2 /* IEU1 */; \
- add %g3, 1, %g3 /* IEU0 Group */; \
- srl %g3, 1, %g3 /* IEU0 Group */; \
- add %o2, %g2, %o2 /* IEU1 */; \
- inc %g5 /* IEU0 Group */; \
- add %o2, %g3, %o2 /* IEU1 */;
-
-#define DO_THE_TRICK(O12,O14,f0,f2,f4,f6,f8,f10,f12,f14,F0,F2,F4,F6,F8,F10,F12,F14) \
- fcmpgt32 %O12, %f12, %o4 /* FPM Group */; \
- srl %g5, 1, %g5 /* IEU0 */; \
- inc %g7 /* IEU1 */; \
- fpadd32 %F0, %f0, %F0 /* FPA */; \
- fcmpgt32 %O14, %f14, %o5 /* FPM Group */; \
- srl %g7, 1, %g7 /* IEU0 */; \
- add %o2, %g5, %o2 /* IEU1 */; \
- fpadd32 %F2, %f2, %F2 /* FPA */; \
- inc %o3 /* IEU0 Group */; \
- add %o2, %g7, %o2 /* IEU1 */; \
- fcmpgt32 %f0, %F0, %g1 /* FPM Group */; \
- srl %o3, 1, %o3 /* IEU0 */; \
- inc %o4 /* IEU1 */; \
- fpadd32 %F4, %f4, %F4 /* FPA */; \
- fcmpgt32 %f2, %F2, %g2 /* FPM Group */; \
- srl %o4, 1, %o4 /* IEU0 */; \
- add %o2, %o3, %o2 /* IEU1 */; \
- fpadd32 %F6, %f6, %F6 /* FPA */; \
- inc %o5 /* IEU0 Group */; \
- add %o2, %o4, %o2 /* IEU1 */; \
- fcmpgt32 %f4, %F4, %g3 /* FPM Group */; \
- srl %o5, 1, %o5 /* IEU0 */; \
- inc %g1 /* IEU1 */; \
- fpadd32 %F8, %f8, %F8 /* FPA */; \
- fcmpgt32 %f6, %F6, %g5 /* FPM Group */; \
- srl %g1, 1, %g1 /* IEU0 */; \
- add %o2, %o5, %o2 /* IEU1 */; \
- fpadd32 %F10, %f10, %F10 /* FPA */; \
- inc %g2 /* IEU0 Group */; \
- add %o2, %g1, %o2 /* IEU1 */; \
- fcmpgt32 %f8, %F8, %g7 /* FPM Group */; \
- srl %g2, 1, %g2 /* IEU0 */; \
- inc %g3 /* IEU1 */; \
- fpadd32 %F12, %f12, %F12 /* FPA */; \
- fcmpgt32 %f10, %F10, %o3 /* FPM Group */; \
- srl %g3, 1, %g3 /* IEU0 */; \
- add %o2, %g2, %o2 /* IEU1 */; \
- fpadd32 %F14, %f14, %F14 /* FPA */; \
- inc %g5 /* IEU0 Group */; \
- add %o2, %g3, %o2 /* IEU1 */;
-
-#define END_THE_TRICK(O12,O14,f0,f2,f4,f6,f8,f10,f12,f14,S0,S1,S2,S3,T0,T1,U0,fz) \
- fcmpgt32 %O12, %f12, %o4 /* FPM Group */; \
- srl %g5, 1, %g5 /* IEU0 */; \
- inc %g7 /* IEU1 */; \
- fpadd32 %f2, %f0, %S0 /* FPA */; \
- fcmpgt32 %O14, %f14, %o5 /* FPM Group */; \
- srl %g7, 1, %g7 /* IEU0 */; \
- add %o2, %g5, %o2 /* IEU1 */; \
- fpadd32 %f6, %f4, %S1 /* FPA */; \
- inc %o3 /* IEU0 Group */; \
- add %o2, %g7, %o2 /* IEU1 */; \
- fcmpgt32 %f0, %S0, %g1 /* FPM Group */; \
- srl %o3, 1, %o3 /* IEU0 */; \
- inc %o4 /* IEU1 */; \
- fpadd32 %f10, %f8, %S2 /* FPA */; \
- fcmpgt32 %f4, %S1, %g2 /* FPM Group */; \
- srl %o4, 1, %o4 /* IEU0 */; \
- add %o2, %o3, %o2 /* IEU1 */; \
- fpadd32 %f14, %f12, %S3 /* FPA */; \
- inc %o5 /* IEU0 Group */; \
- add %o2, %o4, %o2 /* IEU1 */; \
- fzero %fz /* FPA */; \
- fcmpgt32 %f8, %S2, %g3 /* FPM Group */; \
- srl %o5, 1, %o5 /* IEU0 */; \
- inc %g1 /* IEU1 */; \
- fpadd32 %S0, %S1, %T0 /* FPA */; \
- fcmpgt32 %f12, %S3, %g5 /* FPM Group */; \
- srl %g1, 1, %g1 /* IEU0 */; \
- add %o2, %o5, %o2 /* IEU1 */; \
- fpadd32 %S2, %S3, %T1 /* FPA */; \
- inc %g2 /* IEU0 Group */; \
- add %o2, %g1, %o2 /* IEU1 */; \
- fcmpgt32 %S0, %T0, %g7 /* FPM Group */; \
- srl %g2, 1, %g2 /* IEU0 */; \
- inc %g3 /* IEU1 */; \
- fcmpgt32 %S2, %T1, %o3 /* FPM Group */; \
- srl %g3, 1, %g3 /* IEU0 */; \
- add %o2, %g2, %o2 /* IEU1 */; \
- inc %g5 /* IEU0 Group */; \
- add %o2, %g3, %o2 /* IEU1 */; \
- fcmpgt32 %fz, %f2, %o4 /* FPM Group */; \
- srl %g5, 1, %g5 /* IEU0 */; \
- inc %g7 /* IEU1 */; \
- fpadd32 %T0, %T1, %U0 /* FPA */; \
- fcmpgt32 %fz, %f6, %o5 /* FPM Group */; \
- srl %g7, 1, %g7 /* IEU0 */; \
- add %o2, %g5, %o2 /* IEU1 */; \
- inc %o3 /* IEU0 Group */; \
- add %o2, %g7, %o2 /* IEU1 */; \
- fcmpgt32 %fz, %f10, %g1 /* FPM Group */; \
- srl %o3, 1, %o3 /* IEU0 */; \
- inc %o4 /* IEU1 */; \
- fcmpgt32 %fz, %f14, %g2 /* FPM Group */; \
- srl %o4, 1, %o4 /* IEU0 */; \
- add %o2, %o3, %o2 /* IEU1 */; \
- std %U0, [%sp + STACKOFF] /* Store Group */; \
- inc %o5 /* IEU0 */; \
- sub %o2, %o4, %o2 /* IEU1 */; \
- fcmpgt32 %fz, %S1, %g3 /* FPM Group */; \
- srl %o5, 1, %o5 /* IEU0 */; \
- inc %g1 /* IEU1 */; \
- fcmpgt32 %fz, %S3, %g5 /* FPM Group */; \
- srl %g1, 1, %g1 /* IEU0 */; \
- sub %o2, %o5, %o2 /* IEU1 */; \
- ldx [%sp + STACKOFF], %o5 /* Load Group */; \
- inc %g2 /* IEU0 */; \
- sub %o2, %g1, %o2 /* IEU1 */; \
- fcmpgt32 %fz, %T1, %g7 /* FPM Group */; \
- srl %g2, 1, %g2 /* IEU0 */; \
- inc %g3 /* IEU1 */; \
- fcmpgt32 %T0, %U0, %o3 /* FPM Group */; \
- srl %g3, 1, %g3 /* IEU0 */; \
- sub %o2, %g2, %o2 /* IEU1 */; \
- inc %g5 /* IEU0 Group */; \
- sub %o2, %g3, %o2 /* IEU1 */; \
- fcmpgt32 %fz, %U0, %o4 /* FPM Group */; \
- srl %g5, 1, %g5 /* IEU0 */; \
- inc %g7 /* IEU1 */; \
- srl %g7, 1, %g7 /* IEU0 Group */; \
- sub %o2, %g5, %o2 /* IEU1 */; \
- inc %o3 /* IEU0 Group */; \
- sub %o2, %g7, %o2 /* IEU1 */; \
- srl %o3, 1, %o3 /* IEU0 Group */; \
- inc %o4 /* IEU1 */; \
- srl %o4, 1, %o4 /* IEU0 Group */; \
- add %o2, %o3, %o2 /* IEU1 */; \
- sub %o2, %o4, %o2 /* IEU0 Group */; \
- addcc %o2, %o5, %o2 /* IEU1 Group */; \
- bcs,a,pn %xcc, 33f /* CTI */; \
- add %o2, 1, %o2 /* IEU0 */; \
-33: /* That's it */;
-
-#define CSUM_LASTCHUNK(offset) \
- ldx [%o0 - offset - 0x10], %g2; \
- ldx [%o0 - offset - 0x08], %g3; \
- addcc %g2, %o2, %o2; \
- bcs,a,pn %xcc, 31f; \
- add %o2, 1, %o2; \
-31: addcc %g3, %o2, %o2; \
- bcs,a,pn %xcc, 32f; \
- add %o2, 1, %o2; \
-32:
-
- .text
- .globl csum_partial
- .align 32
-csum_partial:
- andcc %o0, 7, %g0 /* IEU1 Group */
- be,pt %icc, 4f /* CTI */
- andcc %o0, 0x38, %g3 /* IEU1 */
- mov 1, %g5 /* IEU0 Group */
- cmp %o1, 6 /* IEU1 */
- bl,pn %icc, 21f /* CTI */
- andcc %o0, 2, %g0 /* IEU1 Group */
- be,pt %icc, 1f /* CTI */
- and %o0, 4, %g7 /* IEU0 */
- lduh [%o0], %g2 /* Load */
- sub %o1, 2, %o1 /* IEU0 Group */
- add %o0, 2, %o0 /* IEU1 */
- andcc %o0, 4, %g7 /* IEU1 Group */
- sll %g5, 16, %g5 /* IEU0 */
- sll %g2, 16, %g2 /* IEU0 Group */
- addcc %g2, %o2, %o2 /* IEU1 Group (regdep) */
- bcs,a,pn %icc, 1f /* CTI */
- add %o2, %g5, %o2 /* IEU0 */
-1: ld [%o0], %g2 /* Load */
- brz,a,pn %g7, 4f /* CTI+IEU1 Group */
- and %o0, 0x38, %g3 /* IEU0 */
- add %o0, 4, %o0 /* IEU0 Group */
- sub %o1, 4, %o1 /* IEU1 */
- addcc %g2, %o2, %o2 /* IEU1 Group */
- bcs,a,pn %icc, 1f /* CTI */
- add %o2, 1, %o2 /* IEU0 */
-1: and %o0, 0x38, %g3 /* IEU1 Group */
-4: srl %o2, 0, %o2 /* IEU0 Group */
- mov 0x40, %g1 /* IEU1 */
- brz,pn %g3, 3f /* CTI+IEU1 Group */
- sub %g1, %g3, %g1 /* IEU0 */
- cmp %o1, 56 /* IEU1 Group */
- blu,pn %icc, 20f /* CTI */
- andcc %o0, 8, %g0 /* IEU1 Group */
- be,pn %icc, 1f /* CTI */
- ldx [%o0], %g2 /* Load */
- add %o0, 8, %o0 /* IEU0 Group */
- sub %o1, 8, %o1 /* IEU1 */
- addcc %g2, %o2, %o2 /* IEU1 Group */
- bcs,a,pn %xcc, 1f /* CTI */
- add %o2, 1, %o2 /* IEU0 */
-1: andcc %g1, 0x10, %g0 /* IEU1 Group */
- be,pn %icc, 2f /* CTI */
- and %g1, 0x20, %g1 /* IEU0 */
- ldx [%o0], %g2 /* Load */
- ldx [%o0+8], %g3 /* Load Group */
- add %o0, 16, %o0 /* IEU0 */
- sub %o1, 16, %o1 /* IEU1 */
- addcc %g2, %o2, %o2 /* IEU1 Group */
- bcs,a,pn %xcc, 1f /* CTI */
- add %o2, 1, %o2 /* IEU0 */
-1: addcc %g3, %o2, %o2 /* IEU1 Group */
- bcs,a,pn %xcc, 2f /* CTI */
- add %o2, 1, %o2 /* IEU0 */
-2: brz,pn %g1, 3f /* CTI+IEU1 Group */
- ldx [%o0], %g2 /* Load */
- ldx [%o0+8], %g3 /* Load Group */
- ldx [%o0+16], %g5 /* Load Group */
- ldx [%o0+24], %g7 /* Load Group */
- add %o0, 32, %o0 /* IEU0 */
- sub %o1, 32, %o1 /* IEU1 */
- addcc %g2, %o2, %o2 /* IEU1 Group */
- bcs,a,pn %xcc, 1f /* CTI */
- add %o2, 1, %o2 /* IEU0 */
-1: addcc %g3, %o2, %o2 /* IEU1 Group */
- bcs,a,pn %xcc, 1f /* CTI */
- add %o2, 1, %o2 /* IEU0 */
-1: addcc %g5, %o2, %o2 /* IEU1 Group */
- bcs,a,pn %xcc, 1f /* CTI */
- add %o2, 1, %o2 /* IEU0 */
-1: addcc %g7, %o2, %o2 /* IEU1 Group */
- bcs,a,pn %xcc, 3f /* CTI */
- add %o2, 1, %o2 /* IEU0 */
-3: cmp %o1, 0xc0 /* IEU1 Group */
- blu,pn %icc, 20f /* CTI */
- sllx %o2, 32, %g1 /* IEU0 */
- addcc %o2, %g1, %o2 /* IEU1 Group */
- sub %o1, 0xc0, %o1 /* IEU0 */
- wr %g0, ASI_BLK_P, %asi /* LSU Group */
-#ifdef __KERNEL__
- wr %g0, FPRS_FEF, %fprs /* LSU Group */
-#endif
- membar #StoreLoad /* LSU Group */
- srlx %o2, 32, %o2 /* IEU0 Group */
- bcs,a,pn %xcc, 1f /* CTI */
- add %o2, 1, %o2 /* IEU1 */
-1: andcc %o1, 0x80, %g0 /* IEU1 Group */
- bne,pn %icc, 7f /* CTI */
- andcc %o1, 0x40, %g0 /* IEU1 Group */
- be,pn %icc, 6f /* CTI */
- fzero %f12 /* FPA */
- fzero %f14 /* FPA Group */
- ldda [%o0 + 0x000] %asi, %f16
- ldda [%o0 + 0x040] %asi, %f32
- ldda [%o0 + 0x080] %asi, %f48
- START_THE_TRICK(f12,f16,f18,f20,f22,f24,f26)
- ba,a,pt %xcc, 3f
-6: sub %o0, 0x40, %o0 /* IEU0 Group */
- fzero %f28 /* FPA */
- fzero %f30 /* FPA Group */
- ldda [%o0 + 0x040] %asi, %f32
- ldda [%o0 + 0x080] %asi, %f48
- ldda [%o0 + 0x0c0] %asi, %f0
- START_THE_TRICK(f28,f32,f34,f36,f38,f40,f42)
- ba,a,pt %xcc, 4f
-7: bne,pt %icc, 8f /* CTI */
- fzero %f44 /* FPA */
- add %o0, 0x40, %o0 /* IEU0 Group */
- fzero %f60 /* FPA */
- fzero %f62 /* FPA Group */
- ldda [%o0 - 0x040] %asi, %f0
- ldda [%o0 + 0x000] %asi, %f16
- ldda [%o0 + 0x040] %asi, %f32
- START_THE_TRICK(f60,f0,f2,f4,f6,f8,f10)
- ba,a,pt %xcc, 2f
-8: add %o0, 0x80, %o0 /* IEU0 Group */
- fzero %f46 /* FPA */
- ldda [%o0 - 0x080] %asi, %f48
- ldda [%o0 - 0x040] %asi, %f0
- ldda [%o0 + 0x000] %asi, %f16
- START_THE_TRICK(f44,f48,f50,f52,f54,f56,f58)
-1: DO_THE_TRICK(f44,f46,f48,f50,f52,f54,f56,f58,f60,f62,f0,f2,f4,f6,f8,f10,f12,f14)
- ldda [%o0 + 0x040] %asi, %f32
-2: DO_THE_TRICK(f60,f62,f0,f2,f4,f6,f8,f10,f12,f14,f16,f18,f20,f22,f24,f26,f28,f30)
- ldda [%o0 + 0x080] %asi, %f48
-3: DO_THE_TRICK(f12,f14,f16,f18,f20,f22,f24,f26,f28,f30,f32,f34,f36,f38,f40,f42,f44,f46)
- ldda [%o0 + 0x0c0] %asi, %f0
-4: DO_THE_TRICK(f28,f30,f32,f34,f36,f38,f40,f42,f44,f46,f48,f50,f52,f54,f56,f58,f60,f62)
- add %o0, 0x100, %o0 /* IEU0 Group */
- subcc %o1, 0x100, %o1 /* IEU1 */
- bgeu,a,pt %icc, 1b /* CTI */
- ldda [%o0 + 0x000] %asi, %f16
- membar #Sync /* LSU Group */
- DO_THE_TRICK(f44,f46,f48,f50,f52,f54,f56,f58,f60,f62,f0,f2,f4,f6,f8,f10,f12,f14)
- END_THE_TRICK(f60,f62,f0,f2,f4,f6,f8,f10,f12,f14,f16,f18,f20,f22,f24,f26,f28,f30)
- and %o1, 0x3f, %o1 /* IEU0 Group */
-#ifdef __KERNEL__
- wr %g0, 0, %fprs /* LSU Group */
-#endif
-20: andcc %o1, 0xf0, %g1 /* IEU1 Group */
- be,pn %icc, 23f /* CTI */
- and %o1, 0xf, %o3 /* IEU0 */
-22: rd %pc, %g7 /* LSU Group */
- sll %g1, 1, %o4 /* IEU0 Group */
- sub %g7, %o4, %g7 /* IEU0 Group (regdep) */
- jmpl %g7 + (23f - 22b), %g0 /* CTI Group brk forced */
- add %o0, %g1, %o0 /* IEU0 */
- CSUM_LASTCHUNK(0xe0)
- CSUM_LASTCHUNK(0xd0)
- CSUM_LASTCHUNK(0xc0)
- CSUM_LASTCHUNK(0xb0)
- CSUM_LASTCHUNK(0xa0)
- CSUM_LASTCHUNK(0x90)
- CSUM_LASTCHUNK(0x80)
- CSUM_LASTCHUNK(0x70)
- CSUM_LASTCHUNK(0x60)
- CSUM_LASTCHUNK(0x50)
- CSUM_LASTCHUNK(0x40)
- CSUM_LASTCHUNK(0x30)
- CSUM_LASTCHUNK(0x20)
- CSUM_LASTCHUNK(0x10)
- CSUM_LASTCHUNK(0x00)
-23: brnz,pn %o3, 26f /* CTI+IEU1 Group */
-24: sllx %o2, 32, %g1 /* IEU0 */
-25: addcc %o2, %g1, %o0 /* IEU1 Group */
- srlx %o0, 32, %o0 /* IEU0 Group (regdep) */
- bcs,a,pn %xcc, 1f /* CTI */
- add %o0, 1, %o0 /* IEU1 */
-1: retl /* CTI Group brk forced */
- srl %o0, 0, %o0 /* IEU0 */
-26: andcc %o1, 8, %g0 /* IEU1 Group */
- be,pn %icc, 1f /* CTI */
- ldx [%o0], %g3 /* Load */
- add %o0, 8, %o0 /* IEU0 Group */
- addcc %g3, %o2, %o2 /* IEU1 Group */
- bcs,a,pn %xcc, 1f /* CTI */
- add %o2, 1, %o2 /* IEU0 */
-1: andcc %o1, 4, %g0 /* IEU1 Group */
- be,a,pn %icc, 1f /* CTI */
- clr %g2 /* IEU0 */
- ld [%o0], %g2 /* Load */
- add %o0, 4, %o0 /* IEU0 Group */
- sllx %g2, 32, %g2 /* IEU0 Group */
-1: andcc %o1, 2, %g0 /* IEU1 */
- be,a,pn %icc, 1f /* CTI */
- clr %o4 /* IEU0 Group */
- lduh [%o0], %o4 /* Load */
- add %o0, 2, %o0 /* IEU1 */
- sll %o4, 16, %o4 /* IEU0 Group */
-1: andcc %o1, 1, %g0 /* IEU1 */
- be,a,pn %icc, 1f /* CTI */
- clr %o5 /* IEU0 Group */
- ldub [%o0], %o5 /* Load */
- sll %o5, 8, %o5 /* IEU0 Group */
-1: or %g2, %o4, %o4 /* IEU1 */
- or %o5, %o4, %o4 /* IEU0 Group (regdep) */
- addcc %o4, %o2, %o2 /* IEU1 Group (regdep) */
- bcs,a,pn %xcc, 1f /* CTI */
- add %o2, 1, %o2 /* IEU0 */
-1: ba,pt %xcc, 25b /* CTI Group */
- sllx %o2, 32, %g1 /* IEU0 */
-21: srl %o2, 0, %o2 /* IEU0 Group */
- cmp %o1, 0 /* IEU1 */
- be,pn %icc, 24b /* CTI */
- andcc %o1, 4, %g0 /* IEU1 Group */
- be,a,pn %icc, 1f /* CTI */
- clr %g2 /* IEU0 */
- lduh [%o0], %g3 /* Load */
- lduh [%o0+2], %g2 /* Load Group */
- add %o0, 4, %o0 /* IEU0 Group */
- sllx %g3, 48, %g3 /* IEU0 Group */
- sllx %g2, 32, %g2 /* IEU0 Group */
- or %g3, %g2, %g2 /* IEU0 Group */
-1: andcc %o1, 2, %g0 /* IEU1 */
- be,a,pn %icc, 1f /* CTI */
- clr %o4 /* IEU0 Group */
- lduh [%o0], %o4 /* Load */
- add %o0, 2, %o0 /* IEU1 */
- sll %o4, 16, %o4 /* IEU0 Group */
-1: andcc %o1, 1, %g0 /* IEU1 */
- be,a,pn %icc, 1f /* CTI */
- clr %o5 /* IEU0 Group */
- ldub [%o0], %o5 /* Load */
- sll %o5, 8, %o5 /* IEU0 Group */
-1: or %g2, %o4, %o4 /* IEU1 */
- or %o5, %o4, %o4 /* IEU0 Group (regdep) */
- addcc %o4, %o2, %o2 /* IEU1 Group (regdep) */
- bcs,a,pn %xcc, 1f /* CTI */
- add %o2, 1, %o2 /* IEU0 */
-1: ba,pt %xcc, 25b /* CTI Group */
- sllx %o2, 32, %g1 /* IEU0 */
/* $Id: VIScsum.S,v 1.2 1997/08/08 08:34:05 jj Exp $
* VIScsum.S: High bandwidth IP checksumming utilizing the UltraSparc
* Visual Instruction Set.
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov