| /* The start module crt0.s for the SysV68 Motorola 3300 Delta Series. |
| Copyright (C) 1996 Free Software Foundation, Inc. |
| Contributed by Manfred Hollstein (manfred@lts.sel.alcatel.de). |
| |
| This file is part of GNU CC. |
| |
| GNU CC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU CC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU CC; see the file COPYING. If not, write to |
| the Free Software Foundation, 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #ifdef MOTOROLA |
| # define COMM comm |
| # define DATA data |
| # define EVEN even |
| # define FILE(n) file n |
| # define GLOBAL_SYM(s) global s |
| # define LOCAL_LABEL(l) L%##l |
| # define IDENT(s) ident s |
| # define TEXT text |
| #else /* Assume we are using GNU as. */ |
| # define COMM .comm |
| # define DATA .data |
| # define EVEN .even |
| # define FILE(name) .file name |
| # define GLOBAL_SYM(s) .globl s |
| # define LOCAL_LABEL(l) .L.##l |
| # define IDENT(s) .section .comment;.asciz s |
| # define TEXT .text |
| #endif |
| |
| FILE ("crt0.s") |
| TEXT |
| GLOBAL_SYM (_start) |
| _start: mov.l %d0,splimit% |
| subq.w &8,%sp |
| mov.l 8(%sp),(%sp) |
| lea 12(%sp),%a0 |
| mov.l %a0,4(%sp) |
| mov.l %a0,%a1 |
| LOCAL_LABEL(0): |
| tst.l (%a0)+ |
| bne.b LOCAL_LABEL(0) |
| #ifdef SGS_CMP_ORDER |
| cmpa.l %a0,(%a1) |
| #else |
| cmpa.l (%a1),%a0 |
| #endif |
| blt.b LOCAL_LABEL(1) |
| subq.w &4,%a0 |
| LOCAL_LABEL(1): |
| mov.l %a0,8(%sp) |
| mov.l %a0,environ |
| jsr initfpu |
| |
| subq.w &8,%sp |
| clr.l %d0 /* if (! isatty (fileno (stderr))) */ |
| mov.b _iob+27,%d0 |
| mov.l %d0,-(%sp) |
| jsr isatty |
| addq.w &4,%sp |
| tst.l %d0 |
| bne.b LOCAL_LABEL(isatty) |
| clr.l -(%sp) /* setbuf (stderr, NULL) */ |
| pea _iob+28 |
| jsr setbuf |
| addq.w &8,%sp |
| LOCAL_LABEL(isatty): |
| addq.w &8,%sp |
| |
| jsr main |
| mov.l %d0,(%sp) |
| jsr exit |
| moveq.l &1,%d0 |
| trap &0 |
| nop |
| |
| GLOBAL_SYM (__stop_monitor) |
| __stop_monitor: |
| rts |
| EVEN |
| |
| COMM splimit%,4 |
| COMM environ,4 |
| |
| IDENT ("$Id: mot3300-crt0.S,v 1.1.1.2 1998/01/14 19:39:06 law Exp $") |
| IDENT ("Contributed by Manfred Hollstein (manfred@lts.sel.alcatel.de)") |
| IDENT ("Corrections by Philippe De Muyter (phdm@macqel.be)") |
