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ack/mach/mantra/int/mloopc
ceriel 924d580670 yet another bug fix
1987-04-07 09:57:50 +00:00

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.sect .text
.sect .rom
.sect .data
.retaddr:
.data4 0
.sect .bss
.sect .text
!THIS FILE CONTAINS THE SYSTEM CALLS FOR PMDS-II AS SUBROUTINES FOR THE
!EM-INTERPRETER. a5 CONTAINS A POINTER TO THE RETURN AREA . EACH SUBROUTINE
!EXPECTS ITS DATA IN THE FORM EM PRODUCES AND GIVES ITS RESULTS AS EM
!REQUIRES.
!THE PMDS-II REQUIRES THE ARGUMENTS ON THE STACK AS 4 BYTE INTEGERS OR
!POINTERS , AND USES THE C-CALLING CONVENTION. THE 2 BYTE WORDS 4 BYTE
!POINTERS VERSION HAS TO DO SOME CONVERSION FIRST .
_Xexit: move.l (sp)+,.retaddr
#ifndef lword
bsr st241
#endif
jsr __exit
_Xfork: move.l (sp)+,.retaddr
jsr _fork
tst.l d0
blt 2f
bne 1f
jsr _getpid
mov d1,-(sp) !PID OF PARENT IN d1
mov #1,-(sp) !(PID OF CHILD IN D0),FLAG 1 IN CHILD
bra 0f
1: mov d0,-(sp) !PID OF CHILD IN d0
cl -(sp) !FLAG 0 IN PARENT
0: cl -(sp)
bra 3f
2: move.l _errno,d0
mov d0,-(sp)
mov d0,-(sp)
3: move.l .retaddr,a0
jmp (a0)
!_Xfork is special
_Xread: move.l (sp)+,.retaddr
#ifndef lword
bsr st241
#endif
jsr _read
sys0: lea 12(sp),sp
cmp.l #-1,d0
bne 1f
move.l _errno,d0
mov d0,-(sp)
mov d0,-(sp)
bra 2f
1: move.l d0,-(sp)
cl -(sp)
2: move.l .retaddr,a0
jmp (a0)
_Xwrite: move.l (sp)+,.retaddr
#ifndef lword
bsr st241
#endif
jsr _write
bra sys0
_Xopen: move.l (sp)+,.retaddr
#ifndef lword
bsr st243
#endif
jsr _open
sys1: lea 8(sp),sp
sys5: cmp.l #-1,d0
bne 1f
move.l _errno,d0
mov d0,-(sp)
mov d0,-(sp)
bra 2f
1: mov d0,-(sp)
cl -(sp)
2: move.l .retaddr,a0
jmp (a0)
_Xclose: move.l (sp)+,.retaddr
#ifndef lword
bsr st241
#endif
jsr _close
sys3: lea 4(sp),sp
sys4: cmp.l #-1,d0
bne 1f
move.l _errno,d0
mov d0,-(sp)
mov d0,-(sp)
bra 2f
1: cl -(sp)
2: move.l .retaddr,a0
jmp (a0)
_Xwait: move.l (sp)+,.retaddr
.sect .data
xxxx:
.data4 0, 0
.sect .text
move.l #xxxx,-(sp)
jsr _wait
add.l #4,sp
sys6: cmp.l #-1,d0
bne 1f
move.l _errno,d0
mov d0,-(sp)
mov d0,-(sp)
bra 2f
1: mov xxxx+4,-(sp) ! ??
mov xxxx,-(sp)
cl -(sp)
2: move.l .retaddr,a0
jmp (a0)
_Xcreat: move.l (sp)+,.retaddr
#ifndef lword
bsr st243
#endif
jsr _creat
bra sys1
_Xlink: move.l (sp)+,.retaddr
jsr _link
lea 8(sp),sp
bra sys4
_Xunlink: move.l (sp)+,.retaddr
jsr _unlink
bra sys3
_Xchdir: move.l (sp)+,.retaddr
jsr _chdir
bra sys3
_Xmknod: move.l (sp)+,.retaddr
#ifndef lword
bsr st244
#endif
jsr _mknod
lea 12(sp),sp
bra sys4
_Xchmod: move.l (sp)+,.retaddr
#ifndef lword
bsr st243
#endif
jsr _chmod
lea 8(sp),sp
bra sys4
_Xchown: move.l (sp)+,.retaddr
#ifndef lword
bsr st244
#endif
jsr _chown
lea 12(sp),sp
bra sys4
_Xbreak: move.l (sp)+,.retaddr
jsr _brk
lea 4(sp),sp
cmp.l #-1,d0
bne 1f
move.l _errno,d0
mov d0,-(sp)
mov d0,-(sp)
bra 2f
1: move.l -4(sp),nd
cl -(sp)
2: move.l .retaddr,a0
jmp (a0)
.sect .data
nd: .data4 endbss
.sect .text
_Xstat: move.l (sp)+,.retaddr
jsr _stat
lea 8(sp),sp
bra sys4
_Xlseek: move.l (sp)+,.retaddr
#ifndef lword
bsr st245
#endif
jsr _lseek
lea 12(sp),sp
cmp.l #-1,d0
bne 1f
move.l _errno,d0
mov d0,-(sp)
mov d0,-(sp)
bra 2f
1: move.l d0,-(sp)
cl -(sp)
2: move.l .retaddr,a0
jmp (a0)
_Xgetpid: move.l (sp)+,.retaddr
jsr _getpid
mov d0,-(sp)
move.l .retaddr,a0
jmp (a0)
_Xmount: move.l (sp)+,.retaddr
#ifndef lword
bsr st246
#endif
jsr _mount
lea 12(sp),sp
bra sys4
_Xumount: move.l (sp)+,.retaddr
jsr _umount
bra sys3
_Xsetuid: move.l (sp)+,.retaddr
#ifndef lword
bsr st241
#endif
jsr _setuid
bra sys3
_Xgetuid: move.l (sp)+,.retaddr
jsr _getuid
sys7: mov d1,-(sp)
mov d0,-(sp)
move.l .retaddr,a0
jmp (a0)
_Xstime: move.l (sp)+,.retaddr
jsr _stime
bra sys3
_Xptrace: move.l (sp)+,.retaddr
#ifndef lword
bsr st247
#endif
jsr _ptrace
lea 16(sp),sp
bra sys5
_Xalarm: move.l (sp)+,.retaddr
#ifndef lword
sub.l #2,sp
clr.w (sp)
#endif
jsr _alarm
lea 4(sp),sp
mov d0,-(sp)
move.l .retaddr,a0
jmp (a0)
_Xfstat: move.l (sp)+,.retaddr
#ifndef lword
bsr st241
#endif
jsr _fstat
lea 8(sp),sp
bra sys4
_Xpause: jsr _pause
rts
_Xutime: move.l (sp)+,.retaddr
jsr _utime
lea 8(sp),sp
bra sys4
_Xaccess: move.l (sp)+,.retaddr
#ifndef lword
bsr st243
#endif
jsr _access
lea 8(sp),sp
bra sys4
_Xnice: move.l (sp)+,.retaddr
#ifndef lword
bsr 241
#endif
jsr _nice
move.l .retaddr,(sp)
rts
_Xftime: move.l (sp)+,.retaddr
jsr _ftime
bra sys3
_Xsync: jsr _sync
rts
_Xkill: move.l (sp)+,.retaddr
#ifndef lword
bsr st248
#endif
jsr _kill
lea 4(sp),sp
bra sys4
_Xdup: move.l (sp)+,.retaddr
#ifndef lword
bsr st248
#endif
jsr _dup
bra sys1
_Xpipe: move.l (sp)+,.retaddr
move.l #xxxx,-(sp)
jsr _pipe
add.l #4,sp
bra sys6
_Xtimes: move.l (sp)+,.retaddr
jsr _times
move.l .retaddr,a0
add.l #4,sp
jmp (a0)
_Xprofil: move.l (sp)+,.retaddr
jsr _profil
move.l .retaddr,a0
lea 16(sp),sp
jmp (a0)
_Xsetgid: move.l (sp)+,.retaddr
#ifndef lword
bsr st241
#endif
jsr _setgid
bra sys3
_Xgetgid: move.l (sp)+,.retaddr
jsr _getpid
bra sys7
_Xsignal: move.l (sp)+,.retaddr
mov (sp)+,d4
extend d4
move.l d4,-(sp)
move.l .retaddr,-(sp)
jsr _signal
lea 12(sp),sp !remove arguments
cmp.l #-1,d0
bne 1f
move.l _errno,d0
mov d0,-(sp)
mov d0,-(sp)
bra 2f
1:
mov d0,-(sp)
cl -(sp)
2:
move.l .retaddr,a0
jmp (a0)
_Xacct: move.l (sp)+,.retaddr
jsr _acct
bra sys3
!_Xlock: move.l (sp)+,.retaddr
!#ifndef lword
! bsr st241
!#endif
! jsr _lock
! bra sys3
_Xioctl: move.l (sp)+,.retaddr
#ifndef lword
bsr st248
#endif
jsr _ioctl
lea 12(sp),sp
bra sys4
!_Xmpxcall: move.l (sp)+,.retaddr
!#ifndef lword
! bsr st241
!#endif
! trap #0
! .data2 56
! lea 12(sp),sp
! bra sys4
_Xexece: move.l (sp)+,.retaddr
jsr _execve
lea 12(sp),sp
bra sys4
_Xumask: move.l (sp)+,.retaddr
#ifndef lword
bsr st241
#endif
jsr _umask
add.l #4,sp
mov d0,-(sp)
move.l .retaddr,a0
jmp (a0)
_Xchroot: move.l (sp)+,.retaddr
jsr _chroot
bra sys3
!----------------------------------------------------------------------------
! STACK ADJUSTMENT FOR THE TWO BYTE INTERPRETER
!-----------------------------------------------------------------------------
#ifndef lword
st241: sub.l #2,sp
move.l 2(sp),(sp)
move.w 6(sp),d0
ext.l d0
move.l d0,4(sp)
rts
st243: sub.l #2,sp
move.l 2(sp),(sp)
move.l 6(sp),4(sp)
move.w 10(sp),d0
ext.l d0
move.l d0,8(sp)
rts
st244: move.l (sp),-(sp)
move.l 8(sp),4(sp)
move.w 12(sp),d0
ext.l d0
move.l d0,8(sp)
move.w 16(sp),d0
ext.l d0
move.l d0,12(sp)
rts
st245: move.l (sp),-(sp)
move.w 8(sp),d0
ext.l d0
move.l d0,4(sp)
move.l 10(sp),8(sp)
move.w 14(sp),d0
ext.l d0
move.l d0,12(sp)
rts
st246: sub.l #2,sp
move.l 2(sp),(sp)
move.l 6(sp),4(sp)
move.l 10(sp),8(sp)
move.w 14(sp),d0
ext.l d0
move.l d0,12(sp)
rts
st247: sub.l #6,sp
move.l 6(sp),(sp)
move.w 10(sp),d0
ext.l d0
move.l d0,4(sp)
move.w 12(sp),d0
ext.l d0
move.l d0,8(sp)
move.l 14(sp),12(sp)
move.w 18(sp),d0
ext.l d0
move.l d0,16(sp)
rts
st248: move.l (sp),-(sp)
move.w 8(sp),d0
ext.l d0
move.l d0,4(sp)
move.w 10(sp),d0
ext.l d0
move.l d0,8(sp)
rts
#endif
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