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This only works with data registers.

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This commit is contained in:
is 2001-04-04 19:53:05 +00:00
parent 3bbe93edd6
commit 3a27b85296
1 changed files with 3 additions and 3 deletions
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6
sys/arch/m68k/include/byte_swap.h
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@ -1,4 +1,4 @@
/* $NetBSD: byte_swap.h,v 1.1 2001/03/30 20:00:05 leo Exp $ */
/* $NetBSD: byte_swap.h,v 1.2 2001/04/04 19:53:05 is Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -44,14 +44,14 @@
#define __byte_swap_word(var) \
({ u_int16_t __var = (var); \
__asm__ __volatile ("rorw #8, %0" \
: "=r" (__var) \
: "=d" (__var) \
: "0" (__var)); \
__var; })
#define __byte_swap_long(var) \
({ u_int32_t __var = (var); \
__asm__ __volatile ("rorw #8, %0; swap %0; rorw #8, %0" \
: "=r" (__var) : "0" (__var)); \
: "=d" (__var) : "0" (__var)); \
__var; })
#endif /* defined(_KERNEL) */