File: add004.u

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;  ###----------------------------------------------------------------###
;  # file	: add004.u						#
;  # date	: Mar 26 1996						#
;  # descr.	: functional test for mips				#
;  ###----------------------------------------------------------------###

	;  ###--------------------------------------------------------###
	;  #   signed subtraction					#
	;  ###--------------------------------------------------------###

vai             .equ    1 
limit		.equ	 7
first		.equ	10

		.org	0x00400000
		.start	init

init :
		loadi	r1      , limit
		loadi	r2      , first

loop :
                addi    r4,r0,vai
		sub	r2 , r2 ,r4 
		bne	r2 , r1,loop
		nop

		beq	r1,r2,good 
		nop
		j	bad
		nop

		.org	0x004000d0
good:		j	good
		nop
bad:		j	bad
		nop
		.end