diff options
Diffstat (limited to '05/util.b')
| -rw-r--r-- | 05/util.b | 23 |
1 files changed, 23 insertions, 0 deletions
@@ -477,6 +477,29 @@ function exit argument status_code syscall(0x3c, status_code) +; return index of leftmost bit +; error on 0 +function leftmost_1bit + argument x + local i + local b + if x == 0 goto leftmost1bit_0 + + i = 63 + :leftmost1bit_loop + b = 1 < i + b &= x + if b != 0 goto leftmost1bit_found + i -= 1 + goto leftmost1bit_loop + :leftmost1bit_found + return i + :leftmost1bit_0 + fputs(2, .str_leftmost1bit_0) + exit(1) + :str_leftmost1bit_0 + string 0 passed to leftmost_1bit. + byte 0 :return_0 return 0 :return_1 |