|
Last change
on this file since 124 was
117,
checked in by rosiere, 15 years ago
|
|
1) Platforms : add new organization for test
2) Load_Store_Unit : add array to count nb_check in store_queue
3) Issue_queue and Core_Glue : rewrite the issue network
4) Special_Register_Unit : add reset value to register CID
5) Softwares : add multicontext test
6) Softwares : add SPECINT
7) Softwares : add MiBench?
7) Read_queue : inhib access for r0
8) Change Core_Glue (network) - dont yet support priority and load balancing scheme
|
-
Property svn:executable set to
*
-
Property svn:keywords set to
Id
|
|
File size:
841 bytes
|
| Line | |
|---|
| 1 | /* +++Date last modified: 05-Jul-1997 */ |
|---|
| 2 | |
|---|
| 3 | /* |
|---|
| 4 | ** Bit counter by Ratko Tomic |
|---|
| 5 | */ |
|---|
| 6 | |
|---|
| 7 | #include "bitcount-bitops.h" |
|---|
| 8 | |
|---|
| 9 | int CDECL bitcount(long i) |
|---|
| 10 | { |
|---|
| 11 | i = ((i & 0xAAAAAAAAL) >> 1) + (i & 0x55555555L); |
|---|
| 12 | i = ((i & 0xCCCCCCCCL) >> 2) + (i & 0x33333333L); |
|---|
| 13 | i = ((i & 0xF0F0F0F0L) >> 4) + (i & 0x0F0F0F0FL); |
|---|
| 14 | i = ((i & 0xFF00FF00L) >> 8) + (i & 0x00FF00FFL); |
|---|
| 15 | i = ((i & 0xFFFF0000L) >> 16) + (i & 0x0000FFFFL); |
|---|
| 16 | return (int)i; |
|---|
| 17 | } |
|---|
| 18 | |
|---|
| 19 | #ifdef TEST |
|---|
| 20 | |
|---|
| 21 | #include <stdlib.h> |
|---|
| 22 | #include "snip_str.h" /* For plural_text() macro */ |
|---|
| 23 | |
|---|
| 24 | main(int argc, char *argv[]) |
|---|
| 25 | { |
|---|
| 26 | long n; |
|---|
| 27 | |
|---|
| 28 | while(--argc) |
|---|
| 29 | { |
|---|
| 30 | int i; |
|---|
| 31 | |
|---|
| 32 | n = atol(*++argv); |
|---|
| 33 | i = bitcount(n); |
|---|
| 34 | printf("%ld contains %d bit%s set\n", |
|---|
| 35 | n, i, plural_text(i)); |
|---|
| 36 | } |
|---|
| 37 | return 0; |
|---|
| 38 | } |
|---|
| 39 | |
|---|
| 40 | #endif /* TEST */ |
|---|
Note: See
TracBrowser
for help on using the repository browser.
