diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/qemu-symbian-svp/tests/cris/check_lz.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/tests/cris/check_lz.c Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,49 @@ +#include +#include +#include +#include "sys.h" + +extern inline int cris_lz(int x) +{ + int r; + asm ("lz\t%1, %0\n" : "=r" (r) : "r" (x)); + return r; +} + +void check_lz(void) +{ + int i; + + if (cris_lz(0) != 32) + err(); + if (cris_lz(1) != 31) + err(); + if (cris_lz(2) != 30) + err(); + if (cris_lz(4) != 29) + err(); + if (cris_lz(8) != 28) + err(); + + /* try all positions with a single bit. */ + for (i = 1; i < 32; i++) { + if (cris_lz(1 << (i-1)) != (32 - i)) + err(); + } + + /* try all positions with all bits. */ + for (i = 1; i < 32; i++) { + /* split up this computation to clarify it. */ + uint32_t val; + val = (unsigned int)-1 >> (32 - i); + if (cris_lz(val) != (32 - i)) + err(); + } +} + +int main(void) +{ + check_lz(); + pass(); + exit(0); +}