diff options
| author | Per Fogelstrom <pefo@cvs.openbsd.org> | 1996-09-22 11:29:53 +0000 |
|---|---|---|
| committer | Per Fogelstrom <pefo@cvs.openbsd.org> | 1996-09-22 11:29:53 +0000 |
| commit | 3392ab37b9f18ee978f446ff07d1a2fcd57ac312 (patch) | |
| tree | 46c165b5db39568251de8b3d48fbbdef523d15ab | |
| parent | 923205930041ab57e9e6493172548d4932282f4e (diff) | |
unaligned support for outs()
| -rw-r--r-- | sys/arch/arc/arc/locore.S | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/sys/arch/arc/arc/locore.S b/sys/arch/arc/arc/locore.S index 96920f9ce3e..3fff8eafe83 100644 --- a/sys/arch/arc/arc/locore.S +++ b/sys/arch/arc/arc/locore.S @@ -1,4 +1,4 @@ -/* $OpenBSD: locore.S,v 1.5 1996/09/19 17:35:19 pefo Exp $ */ +/* $OpenBSD: locore.S,v 1.6 1996/09/22 11:29:52 pefo Exp $ */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. @@ -50,7 +50,7 @@ * v 1.1 89/07/10 14:27:41 nelson Exp SPRITE (DECWRL) * * from: @(#)locore.s 8.5 (Berkeley) 1/4/94 - * $Id: locore.S,v 1.5 1996/09/19 17:35:19 pefo Exp $ + * $Id: locore.S,v 1.6 1996/09/22 11:29:52 pefo Exp $ */ /* @@ -330,6 +330,9 @@ END(outsb) LEAF(outsw) beq a2, zero, 2f addu a2, a2 + li v0, 1 + and v0, a1 + bne v0, zero, 3f # arghh, unaligned. addu a2, a1 1: lhu v0, 0(a1) @@ -339,11 +342,23 @@ LEAF(outsw) 2: jr ra nop +3: + LWHI v0, 0(a1) + LWLO v0, 3(a1) + addiu a1, 2 + bne a1, a2, 3b + sh v0, 0(a0) + + jr ra + nop END(outsw) LEAF(outsl) beq a2, zero, 2f sll a2, 2 + li v0, 3 + and v0, a1 + bne v0, zero, 3f # arghh, unaligned. addu a2, a1 1: lw v0, 0(a1) @@ -353,6 +368,15 @@ LEAF(outsl) 2: jr ra nop +3: + LWHI v0, 0(a1) + LWLO v0, 3(a1) + addiu a1, 4 + bne a1, a2, 3b + sw v0, 0(a0) + + jr ra + nop END(outsl) /* |