Avoid overflow from top bit of p[3].
[rsc] --rw-rw-r-- M 661145 glenda sys 3063 Jan 16 20:30 sys/include/fcall.h
/n/sourcesdump/2006/0116/plan9/sys/include/fcall.h:64,70 -
/n/sourcesdump/2006/0117/plan9/sys/include/fcall.h:64,70
#define GBIT8(p) ((p)[0])
#define GBIT16(p) ((p)[0]|((p)[1]<<8))
#define GBIT32(p) ((p)[0]|((p)[1]<<8)|((p)[2]<<16)|((p)[3]<<24))
- #define GBIT64(p) ((vlong)((p)[0]|((p)[1]<<8)|((p)[2]<<16)|((p)[3]<<24)) |\
+ #define GBIT64(p) ((u32int)((p)[0]|((p)[1]<<8)|((p)[2]<<16)|((p)[3]<<24)) |\
((vlong)((p)[4]|((p)[5]<<8)|((p)[6]<<16)|((p)[7]<<24)) << 32))
#define PBIT8(p,v) (p)[0]=(v)
|