/ / / a2 -- pdp-11 assembler pass 1 error: incb errflg mov r0,-(sp) mov r1,-(sp) mov (r5)+,r0 tst *curarg beq 1f mov r0,-(sp) mov *curarg,r0 clr *curarg jsr r5,filerr; '\n mov (sp)+,r0 1: mov r2,-(sp) mov r3,-(sp) mov line,r3 movb r0,1f mov $1f+6,r0 mov $4,r1 2: clr r2 dvd $10.,r2 add $'0,r3 movb r3,-(r0) mov r2,r3 sob r1,2b mov $1,r0 sys write; 1f; 7 mov (sp)+,r3 mov (sp)+,r2 mov (sp)+,r1 mov (sp)+,r0 rts r5 .data 1: .even .text betwen: cmp r0,(r5)+ blt 1f cmp (r5)+,r0 blt 2f 1: tst (r5)+ 2: rts r5 putw: tst ifflg beq 1f cmp r4,$'\n bne 2f 1: mov r4,*obufp add $2,obufp cmp obufp,$outbuf+512. blo 2f mov $outbuf,obufp movb pof,r0 sys write; outbuf; 512. 2: rts pc