/*------------------------------
	some data declarations
-------------------------------*/

	.section	".data"
hdr:	.asciz	"This is a Test Assembly Program"
msg1:	.asciz	"Enter a number "

/*------------------------------
	the program
-------------------------------*/

	.section	".text"
	.align	4
	.global	main
main:	
	save	%sp,-64,%sp
	sethi	%hi(hdr),%o0		/* load address of greeting */
	or	%o0,%lo(hdr),%o0	/* ditto - takes 2 steps */
	call	prtstring		/* print greeting */
	nop				/* be carefule of these */
	sethi	%hi(msg1),%o0		/* load address of msg1 */
	or	%o0,%lo(msg1),%o0	/* ditto - takes 2 steps */
	call	prtstring		/* print msg1 */
	nop
	call	rdnum			/* read a number from user */
	nop
	clr	%l0			/* clear working reg */
loop:	add	%o0,%l0,%l0		/* add %o0 to %l0 */
	subcc	%o0,1,%o0		/* decrement %o0 and set cc */
	bg	loop			/* repeat if > 0 */
	nop
	mov	%l0,%o0			/* print the answer */
	call	prntnum
	nop
	call	rdstring		/* read a string (<CR>) */
	nop
	call	rdstring		/* read a string */
	nop
	call	prtstring		/* print a string */
	nop
	mov	1,%g1
	ta	0

/*-------------------

The C functions (compiled separately):

	int rdnum() { int i; scanf("%d",&i); return(i); }

	prntnum(int i) { printf("Answer is %d\n",i); }

	char * rdstring() { static char x[256]; gets(x); return(&x); }

	void prtstring(char *x) { printf("%s\n",x); }

--------------------*/