[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: 2e enhanced ROM listing



I remember a later Apple IIe tech ref manual, hard-bound Addison-
Wesley.  If anyone has a scan of that book, maybe the ROM listings are
different (more recent?).

On Jul 24, 4:34 am, "RedskullDC" <redskul...@oohay.moc.ua> wrote:
> Hi Alex,
>
> The ROM listings in the 2e ref manual:http://www.apple-iigs.info/doc/fichiers/appleiietechref4.pdf
> appear to be for the enhanced roms:
>
> CD :  342-0304-A  (8k)
> or
> CF : 342-0349-B (16k)
>
> Diagnostics at $C600 match the dissassembly.
>
> I have a set of unenhanced roms which are completely different.
>
> ---
>
> I had a quick look at the mem-test routine source, it doesn't
> use any 65c02 only opcodes that I can see.
>
> Is it always bit #5 that fails with the enhanced rom set?
>
> Does it still fail if you disable the alternate 64k bank?
>
> Leslie
>
> ----- Original Message -----
> From: "Alex Freed" <al...@mirrow.com>
>
> Newsgroups: comp.sys.apple2
> Sent: Thursday, July 24, 2008 4:53 PM
> Subject: 2e enhanced ROM listing
>
> > Does anyone know if the 2e enhanced ROM listing is available anywhere?
> > I was able to find the original one in the 2e manual, but not the
> > enhanced version.
>
> > The reason I ask is that I have made a new version of the FPGApple, this
> > time it is a clone of the A2e. Good enough to come with good status if I
> > run the ROM diagnostics from the original 2e ROM. The "enhanced"
> > diagnostics gives "RAM 0 0 1 0 0 0 0 0" message.
>
> > Also did anyone disassemble the ROM diagnostics routines?
>
> > Thanks.
>
> > -Alex.