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- From: uhclem@nemesis.UUCP
- Date: 25 Aug 92 22:10 CDT
- Newsgroups: comp.sys.tandy
- Subject: Re: Any Tandy 100 / 102 ML info/code av
- Message-ID: <-31003@nemesis>
- Path: sparky!uunet!cs.utexas.edu!convex!news.oc.com!utacfd.uta.edu!trsvax!trsvax!nemesis!uhclem
- Nf-ID: #R:cup.portal.com:64499:nemesis:-31003:000:912
- Nf-From: nemesis.UUCP!uhclem Aug 25 22:10:00 1992
- References: <64499@cup.portal.com>
- Lines: 22
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- [0]have verified that the CPU is a Z80, and have begun to disassemble part of
-
- I don't have the manual handy, but I was postive the 102 was just a cost
- reduced 100 in a thinner case, and it still used an 8085, like the Model 100.
-
- Yes, the Model 100 used an 8085, not a Z80. If you look at the code in
- ROM, you will note it never uses any of the IX or IY opcodes, nor any of
- the Z80-specific opcodes. Bet you can't find a SBC HL,DE in there.
-
- I suggest you check to see if SBC HL,DE works or take a look inside the case
- before you commit to Z80 opcodes. If the opcode starts with FD, DD, CB, ED,
- 20, or 28, it won't work right on a 8085 processor.
-
-
- Frank Durda IV <uhclem@nemesis.lonestar.org>|"How do I know?
- ...utacfd!nemesis!uhclem (nearest internet) | I tested the first Model 100
- ...letni!rwsys!nemesis!uhclem | in the USA, that's how."
- ...decvax!microsoft!trsvax!nemesis!uhclem |
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