修复屏幕滚动时底下有一条没有刷新的bug

2024-05-02 23:14:43 +08:00 · 2024-05-02 23:14:43 +08:00 · 8e2d61de4a
parent ba36b60b68
commit 8e2d61de4a
1 changed files with 1 additions and 0 deletions
--- a/src/kernel/tty/tty.c
+++ b/src/kernel/tty/tty.c
@ -77,6 +77,7 @@ inline static void scroll_buffer(
    usize dist)
 {
    memcpy(buffer, buffer + width * pixsize * dist, (height - dist) * width * pixsize);
+    memset(buffer + (height - dist) * width * pixsize, 0, dist * width * pixsize);
 }

 inline static void putchar(