A full implementation of UCSD p-System IV.0 for RomWBW. Derived from the official Z80 Adaptable p-System.
My first real programming was on this system. So many memories...
- Fixes to ZPMLDR to make it functional with RomWBW.
- Incorporate fixes from the Jon Saxton disassembly in ZPM3 itself.
- Credit to Lars Nelson for finding the ZPM3 source (disassembly).
- The UART driver has been enhanced to allow use of interrupt driven receive buffer and RTS flow control. It will only be used if enabled and the chip detected has no auto-flow control capability.
- Reorganized most of the "common" files into special directories.
- Fixed bug affecting application boot related to ROM checksum test.
- Added support for LiNC sound card at default port address.
A suite of Z80 instruction test applications has been added to user area 5 of CP/M 2.2 and ZSDOS disk images.
The location of these applications is likely to change.
Lars Nelson has contributed 3 new apps.
- XSUB1 is an improved version of DRI XSUB that allows it to be removed from memory using RMXSUB1
- EX is an early variant of the ZEX batch file processor, but EX runs on ZSDOS (does not require later versions of ZCPR).
- SCOPY is a visual file copy utility which requires ZCPR 3+. It is included on the ZPM disk image.
- The debug monitor will not display the current bank id in the prompt
- The debug monitor has a new command to set the current bank for the lower 32K
NOTE: Bank selection is not possible when running under interrupt mode 1. The command will be rejected with an error.
- Phil Summers' ROM Updater has been given an official/permanent place in the Boot Loader menu.
- Rearranged the order and sizing of the modules in the third ROM bank to allow space for above.
- Made a few minor updates to the DSKYng support code.
- The DSKY(ng) can display disk I/O activity as the system runs. This capability was implemented very erratically. This update overhauls the mechanism, makes it consistent, and implements it across all disk drivers.
- DSKYng now has same features as original DSKY including debug monitor
- Added support for MBS LEDs
- Elevated MBS to a platform instead of just a sub-config of SBC
Contributions from Lars Nelson:
- ZCPRD&J has been slightly enhanced and a couple minor bugs fixed.
- UNZIPZ4 generally handles modern ZIP compression algorithms.
- FD driver will now detect presence of FDC hardware and install if found in all standard configurations
- Does *not* detect type of FDC which must still be set in config
- Added default FD driver MODE to all configs
- Thanks to Alan Cox for the technique!
Trim flash portions of driver. with flash filesystem enabled, rad routine now used flash drive code to read 4k secctors. Twice as slow as normal rom read routine.
- Complete initial support for Karl's Z280 module w/ 512K RAM/ROM module
- Allow swapping Z180 serial ports via ASCISWAP config variable
- Fix Z180 include file per Issue #141 from J.B. Lang