;  ###----------------------------------------------------------------###
;  # file	: it006.u						#
;  # date	: Mar 26 1996						#
;  # descr.	: functional test for mips				#
;  ###----------------------------------------------------------------###

	;  ###--------------------------------------------------------###
	;  #   decrementation loop (with a hardware interrupt)		#
	;  ###--------------------------------------------------------###

timer_0		.equ	0x40000100
timer_1		.equ	0x40000104
timer_2		.equ	0x40000108
timer_3		.equ	0x4000010C
timer_4		.equ	0x40000110
timer_5		.equ	0x40000114
timer_rst	.equ	0x40000118
timer_sts	.equ	0x4000011C

timer_rst0	.equ	0x4000000C
timer_sts0	.equ	0x40000008

value		.equ	0x0008
v_sts		.equ    0x0040

		.org	0x00400000
		.start	init

init:
                loadi   r31, back_from_int
		
		loadi	r1 , timer_rst
		addiu	r2 , r0 , value
		sw      r2, 0(r1)
		loadi	r1 , timer_sts
		addiu	r2 , r0 , v_sts
		sw      r2, 0(r1)




                addiu   r10, r0 , 0x0001
		lui	r20, 0xffff
		addiu	r16, r0, 0xffaa
		or	r20, r20, r16
loop:	
                addu    r20,r10,r20
        	bne	r20,r0,  loop
                nop
		loadi	r9 , timer_sts0
		loadi r8,0
		sw r8, 0(r9)
        	j	bad
		nop

back_from_int:
		j	good
		nop

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