/ SCCSID: @(#)crt0.s 3.0 4/22/86 / ////////////////////////////////////////////////////////////////////// / Copyright (c) Digital Equipment Corporation 1984, 1985, 1986. / / All Rights Reserved. / / Reference "/usr/src/COPYRIGHT" for applicable restrictions. / ////////////////////////////////////////////////////////////////////// / / C runtime startoff .globl _exit, _environ .globl start .globl _main exit = 1. start: setd mov 2(sp),r0 clr -2(r0) mov sp,r0 sub $4,sp mov 4(sp),(sp) tst (r0)+ mov r0,2(sp) 1: tst (r0)+ bne 1b cmp r0,*2(sp) blo 1f tst -(r0) 1: mov r0,4(sp) mov r0,_environ jsr pc,_main cmp (sp)+,(sp)+ mov r0,(sp) jsr pc,*$_exit sys exit .bss _environ: .=.+2 .data .=.+2 / loc 0 for I/D; null ptr points here.