|
Last change
on this file since 25 was 4, checked in by Mattia Monga, 14 years ago |
|
Importazione sorgenti libro
|
|
File size:
843 bytes
|
| Line | |
|---|
| 1 | /* The kernel call implemented in this file:
|
|---|
| 2 | * m_type: SYS_MEMSET
|
|---|
| 3 | *
|
|---|
| 4 | * The parameters for this kernel call are:
|
|---|
| 5 | * m2_p1: MEM_PTR (virtual address)
|
|---|
| 6 | * m2_l1: MEM_COUNT (returns physical address)
|
|---|
| 7 | * m2_l2: MEM_PATTERN (size of datastructure)
|
|---|
| 8 | */
|
|---|
| 9 |
|
|---|
| 10 | #include "../system.h"
|
|---|
| 11 |
|
|---|
| 12 | #if USE_MEMSET
|
|---|
| 13 |
|
|---|
| 14 | /*===========================================================================*
|
|---|
| 15 | * do_memset *
|
|---|
| 16 | *===========================================================================*/
|
|---|
| 17 | PUBLIC int do_memset(m_ptr)
|
|---|
| 18 | register message *m_ptr;
|
|---|
| 19 | {
|
|---|
| 20 | /* Handle sys_memset(). This writes a pattern into the specified memory. */
|
|---|
| 21 | unsigned long p;
|
|---|
| 22 | unsigned char c = m_ptr->MEM_PATTERN;
|
|---|
| 23 | p = c | (c << 8) | (c << 16) | (c << 24);
|
|---|
| 24 | phys_memset((phys_bytes) m_ptr->MEM_PTR, p, (phys_bytes) m_ptr->MEM_COUNT);
|
|---|
| 25 | return(OK);
|
|---|
| 26 | }
|
|---|
| 27 |
|
|---|
| 28 | #endif /* USE_MEMSET */
|
|---|
| 29 |
|
|---|
Note:
See
TracBrowser
for help on using the repository browser.
