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RomWBW v3.4 Released [message #10559] Mon, 01 January 2024 13:03 Go to next message
Wayne W is currently offline  Wayne W
Messages: 385
Registered: October 2015
Location: Fallbrook, California, US...
Senior Member
I am pleased to announce the availability of v3.4 of RomWBW, the latest stable release. As always, you can acquire this release from the GiHub Releases page.

Some of the improvements in this release are:

  • Front panel LEDs and switches including ability to select operational modes via switches
  • Several new hardware platforms: EP Mini-ITX, SC-700, Duodyne, S100 Z180 SBC, Heath H8, Z1RCC, and ZRC512
  • USB drives via CH37x chip
  • SyQuest Sparq and Iomega Zip drives via parallel port
  • Supplemental disk images for Aztec C, MS BASIC Compiler, MS Fortran, Games, HiTech-C, Turbo Pascal, and SLR Z80ASM
  • Per-drive floppy configuration
Please review the ChangeLog for a more complete list of the changes in this release.

I sincerely appreciate all of the contributions, support, and suggestions that made this release possible.

After upgrading your ROM to this release, you **must** update your disk images with the latest OS Boot files and RomWBW utilities for reliable operation. Please review the RomWBW User Guide document for installation and usage.

A discussion thread has been opened for feedback or questions about this release.

P.S., I apologize for cross posting this message! It seemed appropriate in multiple forums.

Thanks and Happy New Year!

Wayne

Re: RomWBW v3.4 Released [message #10729 is a reply to message #10559] Thu, 25 April 2024 00:18 Go to previous messageGo to next message
drj113 is currently offline  drj113
Messages: 6
Registered: July 2017
Junior Member
It is always difficult to know where to post questions.

I am playing with ROMWBW on a Z180 board using Camelforth from ROM.

I would also like to test an external memory card - Does anybody have a detailed understanding of the Z180 memory mapping in the Camelforth ROM application.

A quick test using ' WORDS HEX . outputs 1717, but that doesn't tell me *where* in the 1Mb physical memory space that word is located? I would loveto swap out the ROM and then poke at external memory on a card - but the memory mapping is doing my head in.
Re: RomWBW v3.4 Released [message #10732 is a reply to message #10729] Thu, 25 April 2024 13:05 Go to previous messageGo to next message
scruss is currently offline  scruss
Messages: 62
Registered: December 2015
Location: Toronto, Canada
Member

The right place to ask would probably be wwarthen/RomWBW · Discussions · GitHub

> Does anyone know what each of the pins on the 6502 CPU chip in the Apple II Plus does?
They all plug into the socket on the motherboard to keep the chip from drifting away. - c.s.a2 FAQ of yore
Re: RomWBW v3.4 Released [message #10747 is a reply to message #10729] Thu, 02 May 2024 16:47 Go to previous message
Wayne W is currently offline  Wayne W
Messages: 385
Registered: October 2015
Location: Fallbrook, California, US...
Senior Member
Sorry for the slow response.

The CamelForth included in RomWBW ROM is only aware of the normal Z80 64K CPU address space. Although the Z180 can address 1MB of physical memory, only a portion of that memory is banked into the active addressable CPU address space. CamelForth is not Z180-aware, so it is giving you the address within the working 64K CPU address space.

I am not skilled in Forth, so I don't know if there is a way to invoke the RomWBW HBIOS API from Forth to get access to other memory banks.

Thanks, Wayne

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