[syslinux] Is it possible to replace bios interrupt with a com32 program?

[Murali (முரளி கணபதி)]

On Wed, Mar 19, 2008 at 5:42 AM, H. Peter Anvin <hpa at zytor.com> wrote:
> louis_fang wrote:
>  > Hi :
>  >
>  > Is it possible to replace bios interrupt with a com32 program?
>  >
>
>  I'm not sure what you're asking here, but from a com32 program you can
>  access BIOS interrupts via the __intcall() function, unless there is
>  already a better replacement in the com32 library.  Note that any memory
>  that is to be accessed as segment:offset will need to be copied to the
>  com32 bounce buffer (__com32.cs_bounce).
>

I think what fang wants is to write a TSR via COM32, so that one COM32
can be executed and stay in memory (replacing the implementation of an
existing interrupt), while another COM32 can run and do stuff as
usual.

- Murali