coco3: vt: bug fix: use wider counter for line clearing.

diff --git a/Kernel/platform-coco3/video.c b/Kernel/platform-coco3/video.c
index 20b8853..d56df7b 100644 (file)
--- a/Kernel/platform-coco3/video.c
+++ b/Kernel/platform-coco3/video.c
@@ -61,11 +61,11 @@ void plot_char(int8_t y, int8_t x, uint16_t c)
 
 void clear_lines(int8_t y, int8_t ct)
 {
+       uint16_t wc= ct * VT_WIDTH;
        map_for_video();
        uint16_t *s = (uint16_t *)char_addr(y, 0);
-       ct *= VT_WIDTH;
        uint16_t w = ' ' * 0x100 + curpty->attr;
-       for( ; ct ; ct-- )
+       for( ; wc ; wc-- )
                *s++=w;
        map_for_kernel();
 }