RE: Major Havoc fluke 9010a rom testing

Yes, page 0 and 1 are in one ROM and page 2 and 3 in the other. I didn't
think about that. J

From: owner-vectorlist@vectorlist.org
[mailto:owner-vectorlist@vectorlist.org] On Behalf Of Kevin Moore
Sent: Tuesday, January 22, 2013 5:26 PM
To: vectorlist@vectorlist.org
Subject: Re: VECTOR: Major Havoc fluke 9010a rom testing

That's what I was thinking.

But the sigs are for the two roms.. will I need to split the roms, and
run sig calc on the halves to get the right sigs?

Kevin

On Tue, Jan 22, 2013 at 6:05 PM, Jess Askey <jess@askey.org> wrote:

The 2 ROM's are broken down into 4 pages... so in order to access
them....

Page 0: Write 00 to 0x1740 then read 0x2000-3fff

Page 1: Write 01 to 0x1740 then read 0x2000-3fff

Page 2: Write 02 to 0x1740 then read 0x2000-3fff

Page 3: Write 03 to 0x1740 then read 0x2000-3fff

That should do it for you!

From: owner-vectorlist@vectorlist.org
[mailto:owner-vectorlist@vectorlist.org] On Behalf Of Kevin Moore
Sent: Tuesday, January 22, 2013 4:05 PM
To: vectorlist@vectorlist.org
Subject: Re: VECTOR: Major Havoc fluke 9010a rom testing

I believe you are correct about FFFF being the range of the 6502, which
makes it all the more odd that Quarter Arcade has such a high address
listed.

http://tech.quarterarcade.com/tech/VM.aspx?g=1669&set=mhavoc

Probably just a mistake.

The Memory map on the MH Schematics show the Range, and for the Rom/s
in question the range should be 2000-3FFF but you have to page between
the two somehow, and that's were I'm failing.

It looks like the address 1740 is used to page between the two roms, but
since I've never had to do that, I'm unable to verify the roms.

The Rom at 8000-BFFF and C000-FFFF are not paged and I can check just
fine. Mind you that this is all on the Alpha processor. Not the Gamma I
haven't gotten that far as of yet.

Kevin

On Tue, Jan 22, 2013 at 3:55 PM, Andre Huijts <a.huijts@upcmail.nl>
wrote:

Its not outside the Fluke's range, it's outside the 6502 range....8 bit
processor is FFFF max.
Or am I missing something ?

Op 22 jan. 2013 om 21:54 heeft Kevin Moore <talon.k@gmail.com> het
volgende geschreven:

> So I'm trying to work on a major havoc, but I'm not to clear on how to
run rom checks on the paged roms..
>
> Quarter Arcades site has the rom range 10000-13FFF for 136025-215, but
the address range is outside the flukes range. Looks like to me the
actually address should start at 2000-3FFF. I'm not at all familiar with
the MMUPAGE0 addressing.
>
> Any pointers, or information I can read?
>
> Thanks,
>
> Kevin
>

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