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| author | Taru Karttunen <taruti@taruti.net> | 2011-03-30 15:46:40 +0300 |
|---|---|---|
| committer | Taru Karttunen <taruti@taruti.net> | 2011-03-30 15:46:40 +0300 |
| commit | e5888a1ffdae813d7575f5fb02275c6bb07e5199 (patch) | |
| tree | d8d51eac403f07814b9e936eed0c9a79195e2450 /sys/src/libventi/cvt.h | |
Import sources from 2011-03-30 iso image
Diffstat (limited to 'sys/src/libventi/cvt.h')
| -rwxr-xr-x | sys/src/libventi/cvt.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sys/src/libventi/cvt.h b/sys/src/libventi/cvt.h new file mode 100755 index 000000000..ef4c2f51d --- /dev/null +++ b/sys/src/libventi/cvt.h @@ -0,0 +1,15 @@ +/* + * integer conversion routines + */ +#define U8GET(p) ((p)[0]) +#define U16GET(p) (((p)[0]<<8)|(p)[1]) +#define U32GET(p) ((u32int)(((p)[0]<<24)|((p)[1]<<16)|((p)[2]<<8)|(p)[3])) +#define U48GET(p) (((vlong)U16GET(p)<<32)|(vlong)U32GET((p)+2)) +#define U64GET(p) (((vlong)U32GET(p)<<32)|(vlong)U32GET((p)+4)) + +#define U8PUT(p,v) (p)[0]=(v) +#define U16PUT(p,v) (p)[0]=(v)>>8;(p)[1]=(v) +#define U32PUT(p,v) (p)[0]=(v)>>24;(p)[1]=(v)>>16;(p)[2]=(v)>>8;(p)[3]=(v) +#define U48PUT(p,v,t32) t32=(v)>>32;U16PUT(p,t32);t32=(v);U32PUT((p)+2,t32) +#define U64PUT(p,v,t32) t32=(v)>>32;U32PUT(p,t32);t32=(v);U32PUT((p)+4,t32) + |