Mercurial > repos > blastem

diff vdp.c @ 708:61faa298af07

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Small horizontal interrupt fixes
author Michael Pavone <pavone@retrodev.com>
date Thu, 14 May 2015 23:17:55 -0700
parents ce4046476abc
children 4cd8823f79e3
line wrap: on
line diff
--- a/vdp.c	Thu May 14 00:04:22 2015 -0700
+++ b/vdp.c	Thu May 14 23:17:55 2015 -0700
@@ -1476,7 +1476,7 @@
 			}
 		}
 		if (is_h40 && slot == LINE_CHANGE_H40 || !is_h40 && slot == LINE_CHANGE_H32) {
-			if (line >= inactive_start) {
+			if (line > inactive_start) {
 				context->hint_counter = context->regs[REG_HINT];
 			} else if (context->hint_counter) {
 				context->hint_counter--;
@@ -1954,7 +1954,7 @@
 	}
 	uint32_t inactive_start = context->latched_mode & BIT_PAL ? PAL_INACTIVE_START : NTSC_INACTIVE_START;
 	uint32_t hint_line;
-	if (context->vcounter >= inactive_start) {
+	if (context->vcounter + context->hint_counter >= inactive_start) {
 		hint_line = context->regs[REG_HINT];
 	} else {
 		hint_line = context->vcounter + context->hint_counter + 1;