diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2017-12-23 03:56:12 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2017-12-23 03:56:12 +0100 |
| commit | 50bea0348ce8f8af3ad506affe256d22e4ffdeab (patch) | |
| tree | f70e8a1e31f822eec9b3228978be27067bd27ca4 | |
| parent | 19419329b29cd001b1db00e67b2971ab3061bdf1 (diff) | |
kernel: convert textmode cga screen contents to kmesg only once
screeninit() might be called again by devvga when switching
to textmode, so only convert the text framebuffer to kmesg
the first time.
| -rw-r--r-- | sys/src/9/pc/cga.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/src/9/pc/cga.c b/sys/src/9/pc/cga.c index 528db05f4..824cd62eb 100644 --- a/sys/src/9/pc/cga.c +++ b/sys/src/9/pc/cga.c @@ -199,6 +199,8 @@ cgatokmesg(void) void screeninit(void) { + static int once; + cgapos = cgaregr(0x0E)<<8; cgapos |= cgaregr(0x0F); cgapos *= 2; @@ -208,8 +210,10 @@ screeninit(void) movecursor(); } - cgatokmesg(); + if(once == 0){ + once = 1; + cgatokmesg(); + } screenputs = cgascreenputs; } - |