_printanewline+db:          bbs     $e,*$_BDR,_printanewline+ea	;;; is halted
20040e9e:     bbc     $e,*$_BDR,20040ea9	;;;; branch not halted
_CONS_Promptlang+19:          movb    $8,*$_BDR	;;;; halted or prompting
2004211e:     movzwl  *$_BDR,(r2)+
2004219e:     extzv   $a,$2,*$_BDR,r2	;;; ask which CPU I am
2004227e:     movb    r0,*$_BDR		;;; store it
200422a0:     insv    *$_BDR,$10,$10,r6	;;; r6 = digit(?) and boot+diag code 
200422c4:     cmpb    *$_BDR,$7		;;; are we running ram test(???)
20042c84:     movl    $_BDR,r0
20042d74:     movl    $_BDR,r0
200431b8:     movl    $_BDR,r0
20046272:     movb    $2,*$_BDR		;;; begin searching for boot dev
2004633d:     movb    $2,*$_BDR		;;; begin searching for boot dev
2004640a:     movb    $1,*$_BDR		;;; found boot dev
_nohaltxfer:  movb    $0,*$_BDR		;;; testing done
_nohaltxfer+ea:       movb    $1,*$_BDR	;;; found boot dev
200469e8:     movb    $1,*$_BDR		;;; found boot dev