TITLE	"mp1test.a: main & test program"
;	Author: Douglas W. Jones
;	Date:	Aug. 21, 2011
	
	USE	"hawk.h"
	USE	"monitor.h"

; --- structure of linked list elements ---

	EXT	HEAD	; list head

NEXT	=	0	; pointer to next element
TEXT	=	4	; pointer to associated text

; --- begin boilerplate for main program ---
ARSIZE	=	4
	INT	MAIN
	S	MAIN
MAIN:
	STORES	R1,R2
	ADDI	R2,R2,ARSIZE

; --- begin application code ---
	LIL	R8,HEAD		; p = HEAD
LOOP:				; do {
	LOADCC	R3,R8,TEXT	;   s = p->text
	BZS	NOTEXT		;   if (s != NULL) {
	ADDI	R2,R2,ARSIZE
	LIL	R1,PUTS
	JSRS	R1,R1	        ;     puts( s )
	ADDI	R2,R2,-ARSIZE
NOTEXT:				;   }
	LOADCC	R8,R8,NEXT	;   p = p->next
	BZR	LOOP		; } while (p != NULL)
; --- end application code ---

	ADDI	R2,R2,-ARSIZE
	LOADS	R1,R2
	JUMPS	R1
	END