diff options
Diffstat (limited to 'include/asm-alpha/bitops.h')
| -rw-r--r-- | include/asm-alpha/bitops.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/include/asm-alpha/bitops.h b/include/asm-alpha/bitops.h index b7c805511..adaf2fac2 100644 --- a/include/asm-alpha/bitops.h +++ b/include/asm-alpha/bitops.h @@ -172,7 +172,10 @@ extern inline unsigned long ffz_b(unsigned long x) extern inline unsigned long ffz(unsigned long word) { -#ifdef __alpha_cix__ +#if 0 && defined(__alpha_cix__) + /* Swine architects -- a year after they publish v3 of the + handbook, in the 21264 data sheet they quietly change CIX + to FIX and remove the spiffy counting instructions. */ /* Whee. EV6 can calculate it directly. */ unsigned long result; __asm__("ctlz %1,%0" : "=r"(result) : "r"(~word)); @@ -208,7 +211,10 @@ extern inline int ffs(int word) * of bits set) of a N-bit word */ -#ifdef __alpha_cix__ +#if 0 && defined(__alpha_cix__) +/* Swine architects -- a year after they publish v3 of the handbook, in + the 21264 data sheet they quietly change CIX to FIX and remove the + spiffy counting instructions. */ /* Whee. EV6 can calculate it directly. */ extern __inline__ unsigned long hweight64(unsigned long w) { |