Re: TI-H: General questions with a possibly big im
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Re: TI-H: General questions with a possibly big im
Emulate the Z80 and all of its outputs on a PPC chip. Then you've got a
great processor at a great speed.
You can even bootstrap the PPC off standard roms, interface up to 512MB or
384MB (Depends on processor) of DRAM. Mow many people here would put 4
128MB DIMMS into their calc? :)
Then just throw on some address lines and add a 12GB IDE drive... Thats
once cool calc.
>Because the Z80 is a great processor, even if it's 20 years old.
>
>>Date: Tue, 14 Jul 1998 07:41:46 -0800 (AKDT)
>>To: ti-hardware@lists.ticalc.org
>>From: Grant Stockly <gussie@alaska.net>
>>Subject: Re: TI-H: General questions with a possibly big im
>>Reply-To: ti-hardware@lists.ticalc.org
>>
>>
>>Why don't you just reprogram an existing emulator and run it on an
>Imbedded
>>chip such as the 386 AMD, or if you want power, a $28 25MHz PPC 403.
>>
>>>I though about the multiple processors too. depending on price and
>any
>>>interfacing problems i may have during development, i may do this.
>>>Perhaps three processors: 1 master and 2 slaves, with the master able
>>>to assign tasks to the slaves. This means, however, that i would need
>>>the expander to be multiple access. this could be possible i guess,
>and
>>>i wouldnt need to worry about the processors interfereing with each
>>>others RAM, but i think it should be able to have each processor
>access
>>>the screen RAM and also have a cross buffer that can be used to cross
>>>processor memory transfers. The interfaceing for these RAM parts tho
>>>could be difficult. I dont know ill havce to try it out. Does nayone
>>>knoe how much individual Z80's cost from anywhere/
>>>?
>>>jonathan KAus
>>>kaus@cybrzn.com
>>
>>
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>>To talk to me direct, I'm 'weridguy' on AOL IM service. I don't have
>an
>>AOL account, just the IM thing.
>>
>>Thanks.
>>
>>
>>
>
>
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Thanks.
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