encounter
/
SDL
mirror of https://github.com/encounter/SDL.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

added Watcom i386 inline asm for SDL_Swap64()

This commit is contained in:
Ozkan Sezer 2021-02-23 17:37:20 +03:00
parent c287087fcc
commit b8d2185277
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
include/SDL_endian.h
View File

@ -232,6 +232,14 @@ SDL_Swap64(Uint64 x)
__asm__("bswapq %0": "=r"(x):"0"(x)); __asm__("bswapq %0": "=r"(x):"0"(x));
return x; return x;
} }
#elif defined(__WATCOMC__) && defined(__386__)
extern _inline Uint64 SDL_Swap64(Uint64);
#pragma aux SDL_Swap64 = \
"bswap eax" \
"bswap edx" \
"xchg eax,edx" \
parm [eax edx] \
modify [eax edx];
#elif defined(_MSC_VER) #elif defined(_MSC_VER)
#pragma intrinsic(_byteswap_uint64) #pragma intrinsic(_byteswap_uint64)
#define SDL_Swap64(x) _byteswap_uint64(x) #define SDL_Swap64(x) _byteswap_uint64(x)