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#include "DEFS.h"
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD: swab.S,v 1.3 1996/08/19 08:15:29 tholo Exp $"
#endif /* LIBC_SCCS */
ENTRY(swab)
movl sp@(4),a0 | source
movl sp@(8),a1 | destination
movl sp@(12),d0 | count
lsrl #1,d0 | count is in bytes; we need words
beq swdone
swloop:
movw a0@+,d1
rorw #8,d1
movw d1,a1@+
subql #1,d0
bne swloop
swdone:
rts
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