The inner loop deals with a contiguous region. It could easily be replaced
by faster board specific functions like hv-logical-memop in board-qemu.
Since hv-logical-memop does not return an address, let's have the enclosing
loop compute the next line address by itself and drop the confusing
"char-width screen-depth * -" address adjustment.
Signed-off-by: Greg Kurz <gk...@linux.vnet.ibm.com>
---
slof/fs/fbuffer.fs | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/slof/fs/fbuffer.fs b/slof/fs/fbuffer.fs
index 756f05a..faae6a9 100644
--- a/slof/fs/fbuffer.fs
+++ b/slof/fs/fbuffer.fs
@@ -99,8 +99,8 @@ CREATE bitmap-buffer 400 4 * allot
: fb8-toggle-cursor ( -- )
line# fb8-line2addr column# fb8-columns2bytes +
char-height 0 ?DO
- char-width screen-depth * 0 ?DO dup dup rb@ -1 xor swap rb! 1+
LOOP
- screen-width screen-depth * + char-width screen-depth * -
+ dup char-width screen-depth * 0 ?DO dup dup rb@ -1 xor swap rb!
1+ LOOP drop
+ screen-width screen-depth * +
LOOP drop
;
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