tcamp@ecsvax.UUCP (Ted A. Campbell) (12/11/87)
I'm wodering if <any> operating systems have been ported to the Z280 -- CP/M Plus or the Banked version of ZRDOS. Just a query at this point: about a year ago I called Echelon to ask if they had ever ported ZCRP3 to a CP/M Plus system. They responded that CP/M Plus was a mistake from the start and that they had no intention of porting ZCPR3 for CPM3. So I'm interested to learn that such a project is underway. Does anyone know (a) what advantages the CP/M Plus version of ZCPR3 would have over CCP+; (b) whether the banked version of ZRDOS has been ported for any banked CP/M Plus BIOSes; and (c) if so, which BIOSes have been supported (I have an Osborne Executive with about three different BIOSes for it). -- Ted A. Campbell | Duke Divinity School | Durham, NC 27706 | email: tcamp@ecsvax |
bridger%rcc@RAND-UNIX.ARPA (12/15/87)
1. Z280: Scott Moore at Zedux, 818-787-0113 voice, 818-787-0458 bbs has a Z280 board running with a multi-tasking OS he supplies with it. It supports multiple cp/m partitions, but not zcpr3. 2. Z3ON3 -- the port of ZCPR33 to CP/M 3 (CP/M PLUS) that is under development -- will provide essentially all ZCPR3 features on a CP/M 3 system, including: z3 external environment descriptor zcpr33 command processor flow control (FCP) resident command processor (RCP), z3 termcap z3 named directories but NOT: input/output packages (IOP). Most CP/M 3 features remain active: hashed directories bdos disk buffering RSX capability, including PUT/GET redirection There are some changes: multiple command line is zcpr3 style file-level passwords not supported by the command processor Importantly, no bios changes are required -- Z3ON3 will be a "drop-in" RSX; the user will install and remove "ZCPR33" features from a cp/m 3 system dynamically, with one command. 3. Echelon developed a banked version of ZRDOS for the DT-42, with a cp/m 2.2 bios. I don't believe any other banked versions have been developed. Trying to do one for a CP/M 3 bios would be problematic at best, because CP/M 3 makes fundamental changes in the bios/bdos disk i/o interface. --bridger