diff options
Diffstat (limited to 'libgloss/lm32/scall.S')
| -rw-r--r-- | libgloss/lm32/scall.S | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/libgloss/lm32/scall.S b/libgloss/lm32/scall.S deleted file mode 100644 index db423a518..000000000 --- a/libgloss/lm32/scall.S +++ /dev/null @@ -1,123 +0,0 @@ -/* - * Lattice Mico32 system calls. - * Contributed by Jon Beniston <jon@beniston.com> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <syscall.h> - -/* - * System call convention (as implemented in simulator: - * - System call number in register r8 - * - Return value in r1 and r2 (only if 64-bit value) - * - errno in r3 - */ - - .extern errno - - .global _write -_write: - mvi r8, SYS_write - scall - mvhi r4, hi(errno) - ori r4, r4, lo(errno) - sw (r4+0), r3 - ret - - .global _read -_read: - mvi r8, SYS_read - scall - mvhi r4, hi(errno) - ori r4, r4, lo(errno) - sw (r4+0), r3 - ret - - .global _open -_open: - mvi r8, SYS_open - scall - mvhi r4, hi(errno) - ori r4, r4, lo(errno) - sw (r4+0), r3 - ret - - .global _close -_close: - mvi r8, SYS_close - scall - mvhi r4, hi(errno) - ori r4, r4, lo(errno) - sw (r4+0), r3 - ret - - .global _lseek -_lseek: - mvi r8, SYS_lseek - scall - mvhi r4, hi(errno) - ori r4, r4, lo(errno) - sw (r4+0), r3 - ret - - .global _fstat -_fstat: - mvi r8, SYS_fstat - scall - mvhi r4, hi(errno) - ori r4, r4, lo(errno) - sw (r4+0), r3 - ret - - .global _stat -_stat: - mvi r8, SYS_stat - scall - mvhi r4, hi(errno) - ori r4, r4, lo(errno) - sw (r4+0), r3 - ret - - .global _link -_link: - mvi r8, SYS_link - scall - mvhi r4, hi(errno) - ori r4, r4, lo(errno) - sw (r4+0), r3 - ret - - .global _unlink -_unlink: - mvi r8, SYS_unlink - scall - mvhi r4, hi(errno) - ori r4, r4, lo(errno) - sw (r4+0), r3 - ret - - .global _exit -_exit: - /* This call doesn't return */ - mvi r8, SYS_exit - scall |