A quick looping test in MIPS

loop.mips

	.text
main:

    li $t4, 1, #t4 = counter
i1: ori $t0, $0, 1000
i2: ori $t1, $0, 2000
i3: addi $t2, $t0, 100
i4: #lw $t3, 0($t1)
i5: #lw $t4, 0($t0)
i6: add $t3, $t3, $t4
i7: #sra $t3, $t3, 1
i8: #sw $t3, 0($t0)
i9: #sw $t3, 0($t1)
i10: addi $t0, $t0, 4
i11: addi $t1, $t1, 4
     jal print
     addi $t4, $t4, 1
i12: slt $t3, $t0, $t2
i13: bne $0, $t3, i4

exit:
	li $v0, 10
	syscall
	
print:
	li $v0, 1	#print counter
	move $a0, $t4
	syscall
	
	.data
newline: .asciiz "\n"

	.text
	
	li $v0, 4
	la $a0, newline
	syscall
	jr $ra