# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1510061913 -3600
# Node ID 7d1685074d4c00e8723858a9c0baab785c7c6cfb
# Parent  83ebe9cd031429a88368d86a8d1c79becfcd4505
Reordered channel and timer activation instructions, tidied generally.

diff -r 83ebe9cd0314 -r 7d1685074d4c vga.S
--- a/vga.S	Tue Nov 07 14:04:29 2017 +0100
+++ b/vga.S	Tue Nov 07 14:38:33 2017 +0100
@@ -623,8 +623,6 @@
 	la $v0, IPC10
 	li $v1, 0b1111100011111	/* DMA1IP, DMA1IS, DMA0IP, DMA0IS = 0 */
 	sw $v1, CLR($v0)
-
-	la $v0, IPC10
 	li $v1, 0b1111100011111	/* DMA1IP, DMA0IP = 7, DMA1IS, DMA0IS = 3 */
 	sw $v1, SET($v0)
 
@@ -930,12 +928,6 @@
 	la $v0, DCH1SSA
 	sw $s2, 0($v0)
 
-	/* Enable the start channel for timer event transfer initiation. */
-
-	la $v0, DCH0ECON
-	li $v1, (1 << 4)	/* DCH0ECON<4> = SIRQEN = 1 */
-	sw $v1, SET($v0)
-
 	/*
 	Suspend delivery of the timer interrupt during the visible period.
 	The condition still occurs, however.
@@ -955,6 +947,12 @@
 	li $v1, (1 << 9)
 	sw $v1, SET($v0)	/* T2IE = 0 */
 
+	/* Enable the start channel for timer event transfer initiation. */
+
+	la $v0, DCH0ECON
+	li $v1, (1 << 4)	/* DCH0ECON<4> = SIRQEN = 1 */
+	sw $v1, SET($v0)
+
 _vbp_active_ret:
 	jr $ra
 	nop