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Optimize also for 68020 and higher CPUs

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%401045
This commit is contained in:
Patrice Mandin 2005-03-30 12:38:03 +00:00
parent 1b3ddcd400
commit ea3ab2c3d9
1 changed files with 3 additions and 3 deletions
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6
include/SDL_endian.h
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@ -79,7 +79,7 @@ static __inline__ Uint16 SDL_Swap16(Uint16 x)
__asm__("rlwimi %0,%2,8,16,23" : "=&r" (result) : "0" (x >> 8), "r" (x)); __asm__("rlwimi %0,%2,8,16,23" : "=&r" (result) : "0" (x >> 8), "r" (x));
return result; return result;
} }
#elif defined(__GNUC__) && defined(__M68000__) #elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__))
static __inline__ Uint16 SDL_Swap16(Uint16 x) static __inline__ Uint16 SDL_Swap16(Uint16 x)
{ {
__asm__("rorw #8,%0" : "=d" (x) : "0" (x) : "cc"); __asm__("rorw #8,%0" : "=d" (x) : "0" (x) : "cc");
@ -113,10 +113,10 @@ static __inline__ Uint32 SDL_Swap32(Uint32 x)
__asm__("rlwimi %0,%2,24,0,7" : "=&r" (result) : "0" (result), "r" (x)); __asm__("rlwimi %0,%2,24,0,7" : "=&r" (result) : "0" (result), "r" (x));
return result; return result;
} }
#elif defined(__GNUC__) && defined(__M68000__) #elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__))
static __inline__ Uint32 SDL_Swap32(Uint32 x) static __inline__ Uint32 SDL_Swap32(Uint32 x)
{ {
__asm__("rorw #8,%0\n\tswap %0\n\tror #8,%0" : "=d" (x) : "0" (x) : "cc"); __asm__("rorw #8,%0\n\tswap %0\n\trorw #8,%0" : "=d" (x) : "0" (x) : "cc");
return x; return x;
} }
#else #else