Guenter Bietzig wrote:
>
> Now let's make some tests what's going on in the COMPAQ.
>
> 1. Let see what the COMPAQ does with your COM-ports.
>
> - Start your machine to pure DOS.
> - type 'debug' (it's in the DOS subdir)
> - type 'd0:400' CR
>
> you get some lines with hex numbers. We only need the first line:
>
> 0000:400 F8 03 F8 02 00 00 00 00..............
> ----- ----- ----- -----
> ^ ^ ^ ^
> ADDR. COM1 COM2 COM3 COM4
>
> Please check what port-address you get in which position.
>
> 2. Let see what the COMPAQ does with software interrupt 60h
> to load the packet driver.
>
> - Start your machine to pure DOS.
> - type 'debug' (it's in the DOS subdir)
> - type 'd0:180' CR
>
> you get some lines with hex numbers. We only need the first line:
>
> 0000:180 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> ----------- ----------- ----------- -----------
> ^ ^ ^ ^
> ADDR. Int60h Int61h Int62h Int63h
>
> If there are all zero in it, these interrupts are free, otherwise
> they are used by the COMPAQ :-((
> --------------
> <>
> Arachne loads the packet driver, if used by the machine or not, to INT60h.
>
> Regards
Nice to see your work again Guenter !
- Clarence Verge
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