From: Joshua Wise <joshua@nyus.joshuawise.com>
Date: Sun, 7 Dec 2008 11:17:26 +0000 (-0500)
Subject: Fix modulo issues in vga-overlay
X-Git-Url: http://git.joshuawise.com/netwatch.git/commitdiff_plain/4a7183911c58bc79653e663bc3711d48b5027655?hp=--cc

Fix modulo issues in vga-overlay
---

4a7183911c58bc79653e663bc3711d48b5027655
diff --git a/aseg-paging/vga-overlay.c b/aseg-paging/vga-overlay.c
index e6e223c..f7d7bf4 100644
--- a/aseg-paging/vga-overlay.c
+++ b/aseg-paging/vga-overlay.c
@@ -74,7 +74,7 @@ void outlog()
 	int y;
 
 	for (y = -LOG_ONSCREEN; y < 0; y++)
-		strblit(logents[(y + prodptr) % LOGLEN], y + LOG_ONSCREEN, 40, 1);
+		strblit(logents[(y + prodptr + LOGLEN) % LOGLEN], y + LOG_ONSCREEN, 40, 1);
 }
 
 void dolog(const char *s)
@@ -112,4 +112,3 @@ void (*outputf)(const char *s, ...) = dologf;
 void dump_log (char * target) {
 	memcpy(target, logents, sizeof(logents));
 }
-