[patch] Bug in printing character from extended ASCII on pc386 vga console
Alexey Shamrin
shamrin at gmail.com
Thu Nov 30 07:10:35 UTC 2006
Hello!
When trying to print character with code higher than 127 to vga
console on pc386, it is printed with blinking attribute enabled.
The reason: char == signed char, so such characters get represented by
negative numbers. The sign bit then goes to attribute byte, giving
blinking.
The patch can be applied to rtems/c/src/lib/libbsp/i386/pc386/console/outch.c
--- outch.c Thu Nov 30 09:56:24 2006
+++ outch_fixed.c Thu Nov 30 09:57:32 2006
@@ -141,7 +141,7 @@
return;
}
default: {
- *pt_bitmap = car | attribute;
+ *pt_bitmap = (unsigned char)car | attribute;
advanceCursor();
return;
}
--
Alexey
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