diff options
| author |   miod <miod@openbsd.org> | 2013-02-02 13:32:05 +0000 |
|---|---|---|
| committer | miod <miod@openbsd.org> | 2013-02-02 13:32:05 +0000 |
| commit | 857bac4346e1d51d12179e663de7445d42040c0f (patch) | |
| tree | aff74df33eca2f4e364bcc095681f3fab0fbe5bb /sys/lib/libkern/arch/m68k/memset.S | |
| parent | Userland bits for m68k/ELF. Mostly addition of register prefixes to the (diff) | |
| download | wireguard-openbsd-857bac4346e1d51d12179e663de7445d42040c0f.tar.xz wireguard-openbsd-857bac4346e1d51d12179e663de7445d42040c0f.zip | |
Kernel bits for m68k/ELF, mostly from NetBSD. In addition, the `pmod' symbel
in fpsp has to be renamed due to a clash with other parts of the kernel.
Diffstat (limited to 'sys/lib/libkern/arch/m68k/memset.S')
| -rw-r--r-- | sys/lib/libkern/arch/m68k/memset.S | 74 |
1 files changed, 37 insertions, 37 deletions
diff --git a/sys/lib/libkern/arch/m68k/memset.S b/sys/lib/libkern/arch/m68k/memset.S index e2ecdc5f7b1..75b4b38d352 100644 --- a/sys/lib/libkern/arch/m68k/memset.S +++ b/sys/lib/libkern/arch/m68k/memset.S @@ -1,4 +1,4 @@ -/* $OpenBSD: memset.S,v 1.3 2007/11/24 19:38:04 deraadt Exp $ */ +/* $OpenBSD: memset.S,v 1.4 2013/02/02 13:32:06 miod Exp $ */ /*- * Copyright (c) 1990 The Regents of the University of California. @@ -45,55 +45,55 @@ * - use nested DBcc instructions or use one and limit size to 64K */ ENTRY(memset) - movl d2,sp@- - movl sp@(8),a0 | destination - movl sp@(16),d0 | count + movl %d2,%sp@- + movl %sp@(8),%a0 | destination + movl %sp@(16),%d0 | count beq bzdone | nothing to do - movb sp@(15),d2 | character - movl a0,d1 - btst #0,d1 | address odd? + movb %sp@(15),%d2 | character + movl %a0,%d1 + btst #0,%d1 | address odd? beq bzeven | no, skip alignment - movb d2,a0@+ | set one byte - subql #1,d0 | adjust count + movb %d2,%a0@+ | set one byte + subql #1,%d0 | adjust count beq bzdone | if zero, all done bzeven: - cmpl #15,d0 + cmpl #15,%d0 ble bzbloop | too small to be worthwhile - clrl d1 | replicate byte to fill longword - movb d2,d1 - movl d1,d2 - lsll #8,d1 - orl d1,d2 - lsll #8,d1 - orl d1,d2 - lsll #8,d1 - orl d1,d2 - movl d0,d1 | convert to longword count - lsrl #2,d1 + clrl %d1 | replicate byte to fill longword + movb %d2,%d1 + movl %d1,%d2 + lsll #8,%d1 + orl %d1,%d2 + lsll #8,%d1 + orl %d1,%d2 + lsll #8,%d1 + orl %d1,%d2 + movl %d0,%d1 | convert to longword count + lsrl #2,%d1 #ifdef DEBUG - moveml #0xffff,sp@- - movl d2,sp@- - movl d1,sp@- - movl d0,sp@- - movl a0,sp@- - movl #foo,sp@- - jsr _printf - addl #20,sp - moveml sp@+,#0xffff + moveml #0xffff,%sp@- + movl %d2,%sp@- + movl %d1,%sp@- + movl %d0,%sp@- + movl %a0,%sp@- + movl #foo,%sp@- + jsr _C_LABEL(printf) + addl #20,%sp + moveml %sp@+,#0xffff #endif bzlloop: - movl d2,a0@+ | set one longword - subql #1,d1 | adjust count + movl %d2,%a0@+ | set one longword + subql #1,%d1 | adjust count bne bzlloop | still more, keep going - andl #3,d0 | what remains + andl #3,%d0 | what remains beq bzdone | nothing, all done bzbloop: - movb d2,a0@+ | set one byte - subql #1,d0 | adjust count + movb %d2,%a0@+ | set one byte + subql #1,%d0 | adjust count bne bzbloop | still more, keep going bzdone: - movl sp@(8),d0 | return destination - movl sp@+,d2 + movl %sp@(8),%d0 | return destination + movl %sp@+,%d2 rts #ifdef DEBUG |