Re: Major Havoc fluke 9010a rom testing

Try 1780 instead of 1740.

On Tue, Jan 22, 2013 at 7:51 PM, Kevin Moore <talon.k@gmail.com> wrote:

> Well, I must be doing something wrong..
>
> I do a write to 1740 = 00
> then do a rom 2000-3FFF
>
> I come up with a 2057
>
> Do a write to 1740 = 01
>
> Rom 2000-3FFF still get 2057
>
> So then I did a Read at 1740 and it's showing FF no matter what I write to
> it.
>
> This is a known working board that I'm trying to do this on. I should be
> able to do this right?
>
> Kevin
>
>
>
> On Tue, Jan 22, 2013 at 6:16 PM, Jess Askey <jess@askey.org> wrote:
>
>> 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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>> ****
>>
>> ** **
>>
>
>

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Received on Tue Jan 22 21:58:09 2013