1.1 --- a/vga.S	Tue May 16 17:58:26 2017 +0200
     1.2 +++ b/vga.S	Tue May 16 22:59:52 2017 +0200
     1.3 @@ -163,6 +163,7 @@
     1.4  	li $s0, 0		/* line counter */
     1.5  	la $s1, vbp_active	/* current event */
     1.6  	move $s2, $zero		/* line address */
     1.7 +	move $s3, $zero		/* screen address */
     1.8  
     1.9  	/* Monitoring loop. */
    1.10  loop:
    1.11 @@ -761,6 +762,10 @@
    1.12  
    1.13  	la $s1, visible_active
    1.14  
    1.15 +	/* Reset the line address. */
    1.16 +
    1.17 +	move $s2, $s3
    1.18 +
    1.19  _vbp_active_ret:
    1.20  	jr $ra
    1.21  	nop