# define MULL(a, b) \
({ int lo, hi;\
asm("smull %0, %1, %2, %3 \n\t"\
- "mov %0, %0, lsr #%4\n\t"\
- "add %1, %0, %1, lsl #%5\n\t"\
- : "=r"(lo), "=r"(hi)\
+ "mov %0, %0, lsr %4\n\t"\
+ "add %1, %0, %1, lsl %5\n\t"\
+ : "=&r"(lo), "=&r"(hi)\
: "r"(b), "r"(a), "i"(FRAC_BITS), "i"(32-FRAC_BITS));\
hi; })
# define MUL64(a,b) ((int64_t)(a) * (int64_t)(b))
-# define MULH(a, b) ({ int lo, hi; asm ("smull %0, %1, %2, %3" : "=r"(lo), "=r"(hi) : "r"(b),"r"(a)); hi; })
+# define MULH(a, b) ({ int lo, hi; asm ("smull %0, %1, %2, %3" : "=&r"(lo), "=&r"(hi) : "r"(b), "r"(a)); hi; })
#else
# define MULL(a,b) (((int64_t)(a) * (int64_t)(b)) >> FRAC_BITS)
# define MUL64(a,b) ((int64_t)(a) * (int64_t)(b))