;; solve 3x^2 + 2x + 1 = 86 by trial x 0...n

;; x = 0
;; while true
;;   t1 = 3x^2
;;   t2 = 2x
;;   t1 = t1 + t2 + 1
;;   if t1 == 86 break else x = x + 1

;; let r1 = x, r3 = t1, r4 = t2, r5 = test

.code 0
	mv r1 #0
:loop	mul r3 r1 r1	;; x * x
	mul r3 r3 #3	;; 3x^2
	mul r4 r1 #2	;; 2x
	add r3 r3 r4
	add r3 r3 #1	;; t1 + t2 + 1
	eq r5 r3 #86
	jf r5 else
	jmp exit
:else	add r1 r1 #1
	jmp loop
:exit 	trap 0
.end