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# xstormy16 system calls for the simulator
#include <syscall.h>
.text
.globl _exit
_exit:
mov r1,#SYS_exit
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size exit,0b-_exit
.globl _open
_open:
mov r1,#SYS_open
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size open,0b-_open
.globl _close
_close:
mov r1,#SYS_close
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size close,0b-_close
.globl _read
_read:
mov r1,#SYS_read
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size read,0b-_read
.globl _write
_write:
mov r1,#SYS_write
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size write,0b-_write
.globl _lseek
_lseek:
mov r1,#SYS_lseek
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size lseek,0b-_lseek
.globl _unlink
_unlink:
mov r1,#SYS_unlink
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size unlink,0b-_unlink
.globl _getpid
_getpid:
mov r1,#SYS_getpid
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size getpid,0b-_getpid
.globl _kill
_kill:
mov r1,#SYS_kill
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size kill,0b-_kill
.globl _fstat
_fstat:
mov r1,#SYS_fstat
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size fstat,0b-_fstat
.globl _chdir
_chdir:
mov r1,#SYS_chdir
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size chdir,0b-_chdir
.globl _stat
_stat:
mov r1,#SYS_stat
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size stat,0b-_stat
.globl _chmod
_chmod:
mov r1,#SYS_chmod
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size chmod,0b-_chmod
.globl _utime
_utime:
mov r1,#SYS_utime
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size utime,0b-_utime
.globl _time
_time:
mov r1,#SYS_time
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size time,0b-_time
.globl _gettimeofday
_gettimeofday:
mov r1,#SYS_gettimeofday
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size gettimeofday,0b-_gettimeofday
.globl _times
_times:
mov r1,#SYS_times
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size times,0b-_times
.globl _link
_link:
mov r1,#SYS_link
.hword 0x0001
bnz r1,#0,syscall_error
ret
0: .size link,0b-_link
syscall_error:
# Return value for the syscall is in r2. Save it here, as
# _errno will overwrite it with the address of the errno
# variable. r0 is the errno.
push r2
push r0
callf __errno
pop r0
mov.w (r2),r0
pop r2
ret
0: .size syscall_error,0b-syscall_error
|
