|
Last change
on this file since 452 was
444,
checked in by satin@…, 7 years ago
|
|
add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
|
|
File size:
520 bytes
|
| Rev | Line | |
|---|
| [444] | 1 | // Perform a system call. |
|---|
| 2 | // Unused parameters should be set to 0. |
|---|
| 3 | int __trap0(unsigned long func, unsigned long p1, unsigned long p2, unsigned long p3) |
|---|
| 4 | { |
|---|
| 5 | int ret = 0; |
|---|
| 6 | asm volatile ("nop\n\tor %%4,%%0,%0" : : "r"(func)); |
|---|
| 7 | asm volatile ("nop\n\tor %%5,%%0,%0" : : "r"(p1)); |
|---|
| 8 | asm volatile ("nop\n\tor %%6,%%0,%0" : : "r"(p2)); |
|---|
| 9 | asm volatile ("nop\n\tor %%7,%%0,%0" : : "r"(p3)); |
|---|
| 10 | asm volatile ("nop\n\tor %%11,%%0,%0" : : "r"(func)); |
|---|
| 11 | asm volatile ("syscall\n\tnop\n\tor %0,%%0,%%2" : "=r"(ret)); |
|---|
| 12 | return ret; |
|---|
| 13 | } |
|---|
Note: See
TracBrowser
for help on using the repository browser.
