145452649d
Make asm/swab.h compatible with ColdFire ISA_B CPUs. Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
28 lines
602 B
C
28 lines
602 B
C
#ifndef _M68K_SWAB_H
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#define _M68K_SWAB_H
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#include <linux/types.h>
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#include <linux/compiler.h>
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#define __SWAB_64_THRU_32__
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#if defined (__mcfisaaplus__) || defined (__mcfisac__)
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static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
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{
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__asm__("byterev %0" : "=d" (val) : "0" (val));
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return val;
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}
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#define __arch_swab32 __arch_swab32
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#elif !defined(__mcoldfire__)
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static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
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{
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__asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val));
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return val;
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}
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#define __arch_swab32 __arch_swab32
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#endif
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#endif /* _M68K_SWAB_H */
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