diff options
| author | H. Peter Anvin <hpa@zytor.com> | 2009-05-14 20:17:43 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-05-14 20:17:43 -0700 |
| commit | 4519c2a7adde441ef01bdd66864269419d703af8 (patch) | |
| tree | dc780c8e0fb610704b5417edf13e0c9a88f8a250 /core/hello.c | |
| parent | 1fef0a581bf584223ad87bdaf729ccb986abb49f (diff) | |
| download | syslinux-4519c2a7adde441ef01bdd66864269419d703af8.tar.gz | |
core: make the COMBOOT API available to in-kernel PM code
Make it possible to call the COMBOOT API from in-kernel PM code,
simply by setting up the COMBOOT API earlier and only tearing it down
during final shutdown.
WARNING: the COMBOOT API is quite possibly probably not reentrant; I
haven't checked it...
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'core/hello.c')
| -rw-r--r-- | core/hello.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/core/hello.c b/core/hello.c index c4b28032..6c12c738 100644 --- a/core/hello.c +++ b/core/hello.c @@ -3,18 +3,14 @@ void myputchar(int c) { -#if 1 static com32sys_t ireg; + static uint16_t *vram = 0xb8000; - ireg.eax.b[1] = 0x0e; - ireg.eax.b[0] = c; - ireg.ebx.w[0] = 0x0007; - core_intcall(0x10, &ireg, NULL); -#else - static uint16_t *vram = (void *)0xb8000; + ireg.eax.b[1] = 0x02; + ireg.edx.b[0] = c; + core_intcall(0x21, &ireg, NULL); - *vram++ = (uint8_t)c + 0x1f00; -#endif + *vram++ = c + 0x1f00; } void myputs(const char *str) |