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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