URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [trunk/] [or1ksim/] [cuc/] [cuc.c] - Diff between revs 1487 and 1555

Rev 1487	Rev 1555
Line 58...	Line 58...
`1, 1, 0, 0, 0, 1, 0, 1,`	`1, 1, 0, 0, 0, 1, 0, 1,`
`0, 1, 0, 1, 0, 1, 0, 1,`	`0, 1, 0, 1, 0, 1, 0, 1,`
`0, 1, 0, 1, 0, 1, 0, 1,`	`0, 1, 0, 1, 0, 1, 0, 1,`
`1, 1};`	`1, 1};`

`/* returns log2(x) */`
`/* Call this log2_int, because there is a library function named log2 */`
`int log2_int (unsigned long x)`
`{`
`int c = 0;`
`assert (x >= 0);`
`if (!x) return 0; /* not by the book, but practical */`
`while (x != 1) x >>= 1, c++;`
`return c;`
`}`

`/* Does all known instruction optimizations */`	`/* Does all known instruction optimizations */`
`void cuc_optimize (cuc_func *func)`	`void cuc_optimize (cuc_func *func)`
`{`	`{`
`int modified = 0;`	`int modified = 0;`
`int first = 1;`	`int first = 1;`