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Subject: Re: DJGPP for PC-9801/9821 target
To: djgpp AT delorie DOT com
References: <20ba1688-c59a-4bab-aa30-620f1b88c1ebo AT googlegroups DOT com>
Cc: jpstmuk AT gmail DOT com
From: "J.W. Jagersma (jwjagersma AT gmail DOT com) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
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Date: Wed, 12 Aug 2020 14:14:42 +0200
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On 2020-08-12 09:59, jpstmuk AT gmail DOT com [via djgpp AT delorie DOT com] wrote:
> Hey folks,
> 
> I know there are some mentions of the NEC PC-98xx as a target in various bits of (very) old documentation, but wondered if there was anyone who could confirm whether this is still supported, or if it has bitrotted and become unsupported since it was introduced?
> 
> If you're not aware, the PC-98 was a range of "sort-of" PC compatibles by NEC in the mid-late 80's and early 90's in Japan. The older 9801 used NEC Vxx processors and the later 9821 used x86 (386, 486 and Pentium), they shared a few bits of PC-like peripherals and ran a slightly modified version of MS-DOS and Windows, but had completely different BIOS interface, interrupts, memory map, sound and graphics hardware. Just like regular PC's, they were also immensely popular for running games :)
> 
> Well behaved DOS applications can run on them, but at an absolute minimum they would need a different crt0 as an output target, but likely other things too.
> 
> I was wondering if this was still a viable target?

Someone recently started working on a PC-98 compatible fork of djgpp:

https://github.com/lpproj/djgpp-cvs.nec/commit/ff819a64c2265ea45675489b18d4cecd91b28e4b

I personally have no experience with PC-98, so I don't know how complete it is.