Last change
on this file since 85 was
81,
checked in by rosiere, 16 years ago
|
- Finish Environment (and test)
- Continue predictor_unit
- Add external tools
- svn keyword "Id" set
|
-
Property svn:keywords set to
Id
|
File size:
663 bytes
|
Rev | Line | |
---|
[2] | 1 | #include <time.h> |
---|
| 2 | #include <errno.h> |
---|
| 3 | #include <sys/lock.h> |
---|
| 4 | #include "mapping_memory.h" |
---|
| 5 | #include "sim2os.h" |
---|
| 6 | #include "service_clock.h" |
---|
| 7 | |
---|
| 8 | unsigned int service_clock () |
---|
| 9 | { |
---|
| 10 | unsigned int * addr = (unsigned int *)(SIM2OS_BASE); |
---|
| 11 | unsigned int result = -1; |
---|
| 12 | |
---|
| 13 | __lock_init (service_lock); |
---|
| 14 | |
---|
| 15 | __lock_acquire (service_lock); |
---|
| 16 | |
---|
| 17 | *(addr+0) = (unsigned int)SERVICE_CLOCK; |
---|
| 18 | |
---|
| 19 | // memory synchronisation |
---|
| 20 | // (else read (with an address that depend not of store address) can be lunch before a store) |
---|
| 21 | asm("l.msync;"); |
---|
| 22 | |
---|
| 23 | result = (clock_t) *(addr+1); |
---|
| 24 | |
---|
| 25 | if (result == (clock_t)-1) |
---|
| 26 | errno = (int) *(addr+2); |
---|
| 27 | |
---|
| 28 | __lock_release (service_lock); |
---|
| 29 | |
---|
| 30 | return result; |
---|
| 31 | } |
---|
Note: See
TracBrowser
for help on using the repository browser.