[commit] r1198 - trunk/openbios-devel/forth/device

[repository service]

Author: mcayland
Date: Sat Jul 27 15:17:49 2013
New Revision: 1198
URL: http://tracker.coreboot.org/trac/openbios/changeset/1198

Log:
terminal.fs: fix handling of backspace (0x8) control code

Annex B.2 of the IEEE1275 specification mentions that this code moves the
cursor one position to the left on the current line (i.e. it shouldn't
attempt to redraw any characters).

Remove the character redraw code to bring in line with the specification
which also has the side-effect of fixing the spinner used by quik.

Signed-off-by: Mark Cave-Ayland <[e-mail]>

Modified:
   trunk/openbios-devel/forth/device/terminal.fs

Modified: trunk/openbios-devel/forth/device/terminal.fs
==============================================================================
--- trunk/openbios-devel/forth/device/terminal.fs	Sat Jul 27 15:17:47 2013	(r1197)
+++ trunk/openbios-devel/forth/device/terminal.fs	Sat Jul 27 15:17:49 2013	(r1198)
@@ -240,10 +240,8 @@
   endof
   8 of \ BS
     column# 0<> if
-      column# dup
-      to column#
-      20 draw-character 1-
-      to column#
+      column# 1- to column#
+      toggle-cursor exit
     then
   endof
   9 of \ TAB