diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2005-05-24 20:35:30 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2005-05-24 20:35:30 +0000 |
| commit | bd2161646964d463fefae274079205f808e7fffd (patch) | |
| tree | 67e7e54b1d1e4dff6f291e8c6a570d1bf9636a3b | |
| parent | e10a8c153b153b44ffac22ddbea1607bddfb2bbf (diff) | |
Do not assume anything about the calling frame in the inline assembly
statements, ends up in slightly better code and fewer memory access.
| -rw-r--r-- | sys/arch/vax/vax/in4_cksum.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/sys/arch/vax/vax/in4_cksum.c b/sys/arch/vax/vax/in4_cksum.c index 95c884f0322..f878572ba62 100644 --- a/sys/arch/vax/vax/in4_cksum.c +++ b/sys/arch/vax/vax/in4_cksum.c @@ -1,4 +1,4 @@ -/* $OpenBSD: in4_cksum.c,v 1.1 2005/05/10 04:04:39 brad Exp $ */ +/* $OpenBSD: in4_cksum.c,v 1.2 2005/05/24 20:35:29 miod Exp $ */ /* $NetBSD: in4_cksum.c,v 1.8 2003/09/29 22:54:28 matt Exp $ */ /* @@ -128,14 +128,14 @@ in4_cksum(struct mbuf *m, u_int8_t nxt, int off, int len) #endif __asm __volatile( - "movzwl 16(ap),%0;" /* mov len to sum */ - "addb2 8(ap),%0;" /* add proto to sum */ + "movzwl %3,%0;" /* mov len to sum */ + "addb2 %4,%0;" /* add proto to sum */ "rotl $8,%0,%0;" /* htons, carry is preserved */ "adwc 12(%2),%0;" /* add src ip */ "adwc 16(%2),%0;" /* add dst ip */ "adwc $0,%0;" /* clean up carry */ : "=r" (sum) - : "0" (sum), "r" (mtod(m, void *))); + : "0" (sum), "r" (mtod(m, void *)), "r" (len), "r"(nxt)); } /* skip unnecessary part */ |