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Re: Upgrading an Unenhanced IIe

Subject: Re: Upgrading an Unenhanced IIe
From: "Great Hierophant" <great_hierophant@hotmail.com>
Date: 3 Mar 2005 16:54:29 -0800
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Quite right, I checked the board revision of my motherboard with the
Apple IIe technical note that describes DHGR graphics.  The Revision B
motherboard has a part number 820-0064-B, and my motherboard also has
it.  So my Apple IIe can do DHGR!

Can I update the ROM without updating the processor, or would that not
be a good idea (the ROMs use 65c02 exclusive opcodes I would not do
it.)   I have a source that advertises that he has 65c02s, so I may get
lucky there.  Are there any 65c02s out there that will not work with
the Apple II programs that use its opcodes?

References:
- Upgrading an Unenhanced IIe
  - From: "Great Hierophant" <great_hierophant@hotmail.com>
- Re: Upgrading an Unenhanced IIe
  - From: "Great Hierophant" <great_hierophant@hotmail.com>
- Re: Upgrading an Unenhanced IIe
  - From: "Michael J. Mahon" <mjmahon@aol.com>

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