diff options
author | yokota <yokota@FreeBSD.org> | 2001-10-01 11:48:02 +0000 |
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committer | yokota <yokota@FreeBSD.org> | 2001-10-01 11:48:02 +0000 |
commit | d6dabd898ed511a8667a3d085a0d1973d40ca493 (patch) | |
tree | 47721358173400d25dad7ad36ede29b1bee49362 /sys/boot | |
parent | a82b49660785e292283f0e6a9ab8a41ec8a63b43 (diff) | |
download | FreeBSD-src-d6dabd898ed511a8667a3d085a0d1973d40ca493.zip FreeBSD-src-d6dabd898ed511a8667a3d085a0d1973d40ca493.tar.gz |
Fix the function CD(): "Clear to the end of the screen".
- When the video BIOS is called to clear the region (x, y)-(79, 24)
(by scrolling), the slashed region in Fig.1 is cleared. CD() is
supposed to clear the region shown in Fig.2.
x x
+-------+ +-------+
| | | |
y| ////| y| ////|
| ////| |///////|
| ////| |///////|
+-------+ +-------+
Fig.1 Fig.2
- Don't move the cursor during this operation.
Diffstat (limited to 'sys/boot')
-rw-r--r-- | sys/boot/i386/libi386/vidconsole.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/sys/boot/i386/libi386/vidconsole.c b/sys/boot/i386/libi386/vidconsole.c index a2d74a1..bfdb5c1 100644 --- a/sys/boot/i386/libi386/vidconsole.c +++ b/sys/boot/i386/libi386/vidconsole.c @@ -308,15 +308,26 @@ CD(void) { get_pos(); + if (curx > 0) { + v86.ctl = 0; + v86.addr = 0x10; + v86.eax = 0x0600; + v86.ebx = (bg_c << 4) + fg_c; + v86.ecx = (cury << 8) + curx; + v86.edx = (cury << 8) + 79; + v86int(); + if (++cury > 24) { + end_term(); + return; + } + } v86.ctl = 0; v86.addr = 0x10; v86.eax = 0x0600; v86.ebx = (bg_c << 4) + fg_c; - v86.ecx = v86.edx; - v86.edx = 0x184f; + v86.ecx = (cury << 8) + 0; + v86.edx = (24 << 8) + 79; v86int(); - curx = 0; - curs_move(curx, cury); end_term(); } |