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Rev 816 |
# xstormy16 system calls for the simulator
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# xstormy16 system calls for the simulator
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#include
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#include
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.text
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.text
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.globl _exit
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.globl _exit
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_exit:
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_exit:
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mov r1,#SYS_exit
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mov r1,#SYS_exit
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size exit,0b-_exit
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0: .size exit,0b-_exit
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.globl _open
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.globl _open
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_open:
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_open:
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mov r1,#SYS_open
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mov r1,#SYS_open
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size open,0b-_open
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0: .size open,0b-_open
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.globl _close
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.globl _close
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_close:
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_close:
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mov r1,#SYS_close
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mov r1,#SYS_close
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size close,0b-_close
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0: .size close,0b-_close
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.globl _read
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.globl _read
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_read:
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_read:
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mov r1,#SYS_read
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mov r1,#SYS_read
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size read,0b-_read
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0: .size read,0b-_read
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.globl _write
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.globl _write
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_write:
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_write:
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mov r1,#SYS_write
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mov r1,#SYS_write
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size write,0b-_write
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0: .size write,0b-_write
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.globl _lseek
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.globl _lseek
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_lseek:
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_lseek:
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mov r1,#SYS_lseek
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mov r1,#SYS_lseek
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size lseek,0b-_lseek
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0: .size lseek,0b-_lseek
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.globl _unlink
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.globl _unlink
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_unlink:
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_unlink:
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mov r1,#SYS_unlink
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mov r1,#SYS_unlink
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size unlink,0b-_unlink
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0: .size unlink,0b-_unlink
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.globl _getpid
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.globl _getpid
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_getpid:
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_getpid:
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mov r1,#SYS_getpid
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mov r1,#SYS_getpid
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size getpid,0b-_getpid
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0: .size getpid,0b-_getpid
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.globl _kill
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.globl _kill
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_kill:
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_kill:
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mov r1,#SYS_kill
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mov r1,#SYS_kill
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size kill,0b-_kill
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0: .size kill,0b-_kill
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.globl _fstat
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.globl _fstat
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_fstat:
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_fstat:
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mov r1,#SYS_fstat
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mov r1,#SYS_fstat
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size fstat,0b-_fstat
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0: .size fstat,0b-_fstat
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.globl _chdir
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.globl _chdir
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_chdir:
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_chdir:
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mov r1,#SYS_chdir
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mov r1,#SYS_chdir
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size chdir,0b-_chdir
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0: .size chdir,0b-_chdir
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.globl _stat
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.globl _stat
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_stat:
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_stat:
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mov r1,#SYS_stat
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mov r1,#SYS_stat
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size stat,0b-_stat
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0: .size stat,0b-_stat
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.globl _chmod
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.globl _chmod
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_chmod:
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_chmod:
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mov r1,#SYS_chmod
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mov r1,#SYS_chmod
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size chmod,0b-_chmod
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0: .size chmod,0b-_chmod
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.globl _utime
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.globl _utime
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_utime:
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_utime:
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mov r1,#SYS_utime
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mov r1,#SYS_utime
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size utime,0b-_utime
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0: .size utime,0b-_utime
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.globl _time
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.globl _time
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_time:
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_time:
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mov r1,#SYS_time
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mov r1,#SYS_time
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size time,0b-_time
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0: .size time,0b-_time
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.globl _gettimeofday
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.globl _gettimeofday
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_gettimeofday:
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_gettimeofday:
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mov r1,#SYS_gettimeofday
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mov r1,#SYS_gettimeofday
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size gettimeofday,0b-_gettimeofday
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0: .size gettimeofday,0b-_gettimeofday
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.globl _times
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.globl _times
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_times:
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_times:
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mov r1,#SYS_times
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mov r1,#SYS_times
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size times,0b-_times
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0: .size times,0b-_times
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.globl _link
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.globl _link
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_link:
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_link:
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mov r1,#SYS_link
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mov r1,#SYS_link
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.hword 0x0001
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.hword 0x0001
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bnz r1,#0,syscall_error
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bnz r1,#0,syscall_error
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ret
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ret
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0: .size link,0b-_link
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0: .size link,0b-_link
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syscall_error:
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syscall_error:
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# Return value for the syscall is in r2. Save it here, as
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# Return value for the syscall is in r2. Save it here, as
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# _errno will overwrite it with the address of the errno
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# _errno will overwrite it with the address of the errno
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# variable. r0 is the errno.
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# variable. r0 is the errno.
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push r2
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push r2
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push r0
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push r0
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callf __errno
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callf __errno
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pop r0
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pop r0
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mov.w (r2),r0
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mov.w (r2),r0
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pop r2
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pop r2
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ret
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ret
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0: .size syscall_error,0b-syscall_error
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0: .size syscall_error,0b-syscall_error
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