Re: MS-DOS 3.30 boot on the CBM-II

From: Michał Pleban <*lists_at_michau.name*> Date: Sat, 04 Nov 2017 11:36:51 +0100 Message-ID: <59FD9843.1050604@michau.name> · lists_at_michau.name

Steve Gray wrote:

> It's impressive that you could get compatibility to this
> MS-DOS version!... something the CBUG people couldn't do.

Did they actually try? I see that lots of their effort went to CP/M-86,
but MS-DOS was practically neglected.

BTW, even MS-DOS 1.25 is not finished. For example, the IO.SYS "PRINT"
function still calls PC INT 17h (!) which means that trying to print
anything will hang the system. The 6509 code has several bugs too (for
example, it hangs when trying to read a disk sector at address $x0000).

Regards,
Michau.

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