# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1453070772 28800
# Node ID e64168bb2b25dbc0ad93144eec6937cd750f5fe0
# Parent  38dca41f151d5550d4687ff2f42fef5b777d7401
Fix calculation of window start column when it's on the right side. This removes graphical glitches in Afterburner 2, Fireshark and Dungeons and Dragons: Warriors of the Eternal Sun and probably others

diff -r 38dca41f151d -r e64168bb2b25 vdp.c
--- a/vdp.c	Sun Jan 17 14:36:25 2016 -0800
+++ b/vdp.c	Sun Jan 17 14:46:12 2016 -0800
@@ -605,7 +605,7 @@
 	if (!vsram_off) {
 		uint16_t left_col, right_col;
 		if (context->regs[REG_WINDOW_H] & WINDOW_RIGHT) {
-			left_col = (context->regs[REG_WINDOW_H] & 0x1F) * 2;
+			left_col = (context->regs[REG_WINDOW_H] & 0x1F) * 2 + 2;
 			right_col = 42;
 		} else {
 			left_col = 0;