From 2f5f4a5b47cbcb0c1daeaa4b1632b72bd6a9afd5 Mon Sep 17 00:00:00 2001
From: SarahW <pcem@pcem-emulator.co.uk>
Date: Sun, 11 Mar 2018 14:29:56 +0000
Subject: [PATCH] Fixed double IO mapping of Mono VGA registers.

---
 src/vid_svga.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/src/vid_svga.c b/src/vid_svga.c
index 5835aa6..91c5b3d 100644
--- a/src/vid_svga.c
+++ b/src/vid_svga.c
@@ -78,16 +78,9 @@ void svga_out(uint16_t addr, uint8_t val, void *p)
                 case 0x3C2:
                 svga->miscout = val;
                 svga->vidclock = val & 4;// printf("3C2 write %02X\n",val);
-                if (val & 1)
-                {
-//                        pclog("Remove mono handler\n");
-                        io_removehandler(0x03a0, 0x0020, svga->video_in, NULL, NULL, svga->video_out, NULL, NULL, svga->p);
-                }
-                else
-                {
-//                        pclog("Set mono handler\n");
+                io_removehandler(0x03a0, 0x0020, svga->video_in, NULL, NULL, svga->video_out, NULL, NULL, svga->p);
+                if (!(val & 1))
                         io_sethandler(0x03a0, 0x0020, svga->video_in, NULL, NULL, svga->video_out, NULL, NULL, svga->p);
-                }
                 svga_recalctimings(svga);
                 break;
                 case 0x3C4: