[SeaBIOS] [PATCH 2/6] vgabios: Fix screen attrs on cga scroll.
Kevin O'Connor
kevin at koconnor.net
Sat Feb 4 18:50:04 CET 2012
Signed-off-by: Kevin O'Connor <kevin at koconnor.net>
---
vgasrc/vgafb.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/vgasrc/vgafb.c b/vgasrc/vgafb.c
index d988c88..a75bc81 100644
--- a/vgasrc/vgafb.c
+++ b/vgasrc/vgafb.c
@@ -93,6 +93,10 @@ scroll_cga(struct vgamode_s *vmode_g, int nblines, int attr
}
if (attr < 0)
attr = 0;
+ if (cwidth == 1)
+ attr = (attr&1) | ((attr&1)<<1);
+ attr &= 3;
+ attr |= (attr<<2) | (attr<<4) | (attr<<6);
int cols = lr.x - ul.x + 1;
int rows = lr.y - ul.y + 1;
if (nblines < rows) {
--
1.7.6.4
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