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- Path: sparky!uunet!gatech!concert!lester.appstate.edu!pembvax1.pembroke.edu!duck
- From: duck@pembvax1.pembroke.edu
- Newsgroups: comp.sys.cbm
- Subject: ALPHA LOCK in Z-80 Mode? Impossible to read?
- Date: 10 Nov 92 10:07:36 EDT
- Organization: Pembroke State University
- Lines: 8
- Message-ID: <1992Nov10.100736.1@pembvax1.pembroke.edu>
- NNTP-Posting-Host: pembvax1.pembroke.edu
-
- I was going over the 128 schematic and noticed something... Apparently there
- is no way to read the ALPHA/LOCK in Z-80 mode except for switching back to the
- 8502 and reading it from there as that line is brought into the 8502 for
- processing and not on any shared data or memory busses...
-
- Am I reading the schematic wrong or is the ALPHA/LOCK unavailable from the
- Z-80 processor?
-
-