RomWBW v3.4 #378
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RomWBW v3.4 #378
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Merge pull request #340 from wwarthen/dev
Code provided by Alan Cox
- Floppy devices are now configured per-device so that each floppy drive can be different (e.g., first floppy is 3.5" and second floppy is 5.25"). - Removed need to use termination signal on floppy sector I/O. Addresses issue #318
Per issue #343, some systems could initially detect a non-existent IDE device which would cause a long time-out. This should resolve the issue.
Prior improvement to IDE device detection broke detection of spinning hard disks. IDE registers cannot be used prior to device init completion (spin up). Not a problem for CF, but special steps required to ensure devices are fully initialized before register testing.
- The use of hardware reset has been improved such that it is generally only used at initial boot up. - Minor improvements to CF card detection and initialization. - Implement a simple wait mechanism to accommodate the startup time of the RC2014 SD Pico module. - Front panel I/O port for SC series of systems has been moved to 0x00 which is consistent with all other systems and avoids some I/O conflicts.
Initial support for Bill Shen's VGARC video/keyboard module for RCBus.
- Added ability to enable VGARC and front panel in default config without I/O conflicts (does **not** support having both types of hardware present at the same time). - Fixed documentation error in issue #345 reported by @MorfeoMatrixx.
- The LZSA2 decompressor code is failing mysteriously on Z280 CPUs. I have simply disabled it in the Z280 primary configuration file.
Z280 is having an issue with OTDR instruction when loading the font for VGARC. For now, the use of OTDR has been eliminated.
The LZSA2 decompressor invoked a known Z280 CPU bug. A small modification to the code resolves this.
- Andrew Davidson created a nice Python script to extract/insert p-System volumes from/to disk images. Added a reference to his website in the p-System ReadMe.txt file.
Thanks to Alan Cox for inspiring this. Much of the code was usurped from Fuzix.
IMM Driver has rational timeouts now. It also lights the MG014 LED during activity. The PPA skeleton just attempts to determine if the PPA interface is present. It does not attempt any I/O.
Credit to Mark Elkin for testing and finding this issue.
- Added WDATE command courtesy Kevin Boone. See https://github.com/kevinboone/wdate-cpm for more information. - Final cleanup of PPA/IMM/SYQ drivers including CPU speed compensated timeouts.
- Support is limited to 512 byte sectors. So, devices such as ATAPI Zip Drives will work. CD-ROM devices will not because they use a larger sector size.
- Improved media handling and error reporting.
- Implemented a crude mechanism to output config settings during a build which can be imported into the User Guide appendix.
- Corrected to handle latest changes in RomWBW HBIOS bank layout.
- Support for LEDs and switches by default
Thanks and credit to Bill Shen for providing the build updates.
- The post-reset delay of both the IDE and PPIDE drivers has been extended. The SD-IDE adapters need more time to initialize before being ready to behave as proper IDE devices. - Added support for the FDC section of the Duodyne Disk-IO board.
- Updated to standardize on 0x3E/0x3F for primary CH device and 0x3C/0x3D for secondary CH device. Both devices are optional and detected automatically.
- Last check-in had a couple of config file errors which are corrected here. - Also updated Appendix A of the User Guide to reflect new CH37x port addressing.
I am encountering some CH376 chips that go haywire after a reset command. They stop responding for a very long time. I am seeing this only on "LC Tech" adapters and only on Z80 systems (not Z180). No idea what is going on, so I am giving up for now and removing the reset.
- Split out the SD and USB specific support from the main CH37x driver to optimize code space usage. - Ensure CH37x mode switch is handled properly when there are multiple devices active in a system.
- Updated main Duodyne config file to enable DSKY - Fixed issue in dbgmon.asm that caused DSKY auto-increment when examining/modifying RAM to fail.
- Updated change log and code attribution in preparation for upcoming stable release.
Credit and thanks to Jose Collado - This change enhances both the TMS driver and ANSI emulation to handle setting of screen foreground/background.
- Minor doc updates - Comment updates in ansi.asm and tms.asm - Correction to build process for ROMless systems - Fix for ZRC (default configuration) to use all available RAM
- Update PR template for new branching under v3.4 - Tweak Makefile.inc for slightly improved performance - Improve UART driver messaging when bad CTS signal is detected
- Corrected inconsistencies in CPU oscillator speed configuration for Z280 systems. - Updated Bill Chen's ZZRCC monitor from v0.5 to v0.6.
- Improve display of CPUSPD utility.
- Added FAT.COM application to standard ROM Disk (ROM size >= 512K) - Removed RMAC.COM and LINK.COM to make space for FAT.COM
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