Commit Graph

317 Commits

Author SHA1 Message Date
Terence Boldt 8b04a0e926
Add clock driver, remove from firmware (#168) 2024-04-18 14:23:22 -04:00
Terence Boldt 1336371b49 Update 2024-04-02 14:56:42 -04:00
Terence Boldt 7bc130582d Fix build script 2024-03-29 12:13:39 -04:00
Terence Boldt 0f58e987f1 Update setup and instructions 2024-03-29 12:13:39 -04:00
Terence Boldt de156de730 Fix Pico build 2024-03-29 12:13:39 -04:00
Oliver Schmidt 3441a73d9d Remove useless port mirrors. 2024-02-10 09:01:05 -05:00
Oliver Schmidt ab601d0897 Adjust AT28C64B.bin path. 2024-02-10 09:01:05 -05:00
Terence Boldt aa5910cee8
Initial Pico hardware support
* Added assemble.cmd for Windows.

In the long run, some (c)make-based cross-plafrom solution seems preferable.

* Fill up the menu page just like the other pages.

* Allow to assemble for different hardware types.

The first script parameter is used to set the ca65 symbol HW_TYPE. Without parameter, HW_TYPE is set to 0.

* Avoid unwanted i/o access.

Depending on the 6502, LDA addr,X and/or STA addr,X produce additional phantom reads. In order to avoid those phantom reads to do i/o access, I used the "classic" approach of moving those reads from page $C0 to page $BF.

* Made use of BIT instruction to access InputFlags from firmware.

Doing the same for access from disk-based software would require selfmodifying code as there's not bit <addr>,x instruction.

* Removed push/pop from GetByte.

After the replacing the rol instructions with bit instructions with a recent chnage, the only reason left to save a to the stack was setting the OutputFlags. But that can be done using x.

* Added InputFlags check for consistency.

* Added support for an alternative hardware type.

The new hardware type has simple UART-type interface. Beside the two data registers, there are only the two bits to indicate readability and writability of the data registers.

* Added another comminucation interface implementation.

Use ACM CDC (or another proprietary) USB serial device for communication.

Currently VID / PID of a Raspberry Pi Pico SDK CDC UART are hardcoded - see

* Revert "Avoid unwanted i/o access."

Neither the original hardware type nor the alternative hardware type have any read and write i/o port share addresses. Therefore phantom reads aren't an issue with those hardware types.

This reverts commit ae5cb754fb.

* Adapt to the different error signatures on Linux.

So far the code was only tested on Windows.

* Added implementation of the alternative hardware type.

The implemenation is based on a Raspberry Pi Pico - see

The new hardware type has a simple UART-type interface. Beside the two data registers, there are only the two bits to indicate readability and writability of the data registers.

* Modify the HD image for the alternative hardware type.

It is likely desirable to have two HD images for the two hardware types. And likely the apple2driver program should default to the right one based on its protocol setting. BUt given that the HD image(s) shouldn't be part of the actual Git repo anyhow, I don't do anything about this here and now.

* Fixed shell startup (?)

At least on the alternative hardware, this "blindly sending" a reset command causes the shell to be terminated right away:
The driver acknowldges the reset command with a zero byte - and that byte ends up being read by DumpOutput causing it to branch to endOutput.

Maybe that sending a reset command is beneficial on the original hardware. Then another .if is required. Or DumpOutput shouldn't quit on reading a zero byte - the shell handler doesn't seem to send it on purpose(?)

* Upate HD image with recent shell change.

* Fix shell shutdown (?)

At least on the alternative hardware, things happen this way:
1. The shell 'exit' command has ptyOut signal outputComplete and terminate. At this point, ptyIn is still blocked up to one second in ReadCharacter - and can therefore not react on outputComplete.
2. The outputComplete handler in ShellCommand sends a zero byte. This makes on the A2 DumpOutput return and the caller send a zero byte. ShellCommand must not return here as ptyIn is still blocked.
3. The zero byte from the A2 has ptyIn return from ReadCharacter, signal userCancelled and terminate.
4. ShellCommand can now return, but it must not send a zero byte, as the A2 is not expecting it - and will therefore later misinterpret it.

Maybe the original hardware needs another handling, then differentiation of behavior in shell.go becomes necessary.

* Moved boot text out of IIgs copyright message area.

Having the boot text start at the left border of the third line makes it look nice on the cold boot screen of all Apple II's - and there's where the user sees it for some time while waiting for the RPi to come up.

* Several adjustements:

- Get latest Go version as of now.
- Nowadays (?) GitHub 'git clone' seems to only work with a GitHub account. Therefore the zip download workaround. The becomes hopefully unnecessary soon with Go module magic.
- Use 'go mod tidy' to update .sum file for now.
- Error handling for an empty drive 2 is currently not exactly great, so download Total Replay for drive 2. Unfortunately there's no stable URL as of now.
- Use $USER and $HOME instead of hardcoded values.
- Removed deprecated syslog output directives.

* Added brief fork description.

* Added ProDOS-Utilities reference.

* Reverted back to using 'git clone'.

I've no idea why git acted up the other day :-( Now, everything is back to normal...

* Ignore Pico build directory.

* Updated from

* Updated from

At this point, nothing at all is done on an A2 reset. This can likely be improved. However, Apple2-IO-RPi doesn't seem to handle A2 reset exactly gracefully anyhow.

In general, it seems desirable to introduce some simple framing protocol - like SLIP - that allows to recover from an A2 reset in the middle of an Apple2-IO-RPi command execution.

Such a framing protocol would allow to introduce different frame types. One frame type could then be an A2 reset frame sent by the A2retroNET firmware.

* Make use of brand new stable Total Replay download URL.

Thanks to 4am :-)

* Fixed typos.

* Clone upstream ProDOS-Utilities.

My ProDOS-Utilities pull request was merged.

* Added support for boards without LED.

* Updated link.

* Adjusted to the current A2retroNET hardware.

* Removed support for the Pico W.

* Updated URL.

* Updated URL.

* Make use A2Pico library.

* Added link to A2Pico.

* Remove intermediates from repo.

* Build intermediates from Pico build.

* Have LED reflect status of logic ACM connection.

* Update upstream repo references.

* Adjust build instructions.

* Update

* Fix build and update dependencies

* Fix binary comparison

* Fix firware bug on classic hardware


Co-authored-by: Oliver Schmidt <>
2024-02-05 22:49:09 -05:00
Terence Boldt 729ea131db Update ProDOS to 2.4.3 2024-01-02 19:54:35 -08:00
Terence Boldt 2281d03128 Update copyright for 2024 2024-01-02 19:54:35 -08:00
Terence Boldt f6002fa7f9 Update dependencies 2023-12-04 23:29:26 -05:00
Terence Boldt 3840db1a35
Fix nano with enter key as 0x0D (#158) 2023-12-04 23:23:59 -05:00
Terence Boldt 5762cdae3e
Update bug_report.yml 2023-11-19 09:38:07 -05:00
Terence Boldt bde5767314
Fix keyboard delay (#152) 2023-11-01 20:00:21 -04:00
Terence Boldt 6edd7ecf11
Update bug_report.yml 2023-10-31 23:08:30 -04:00
Terence Boldt 8d5aa26b78
Add backoff to reduce CPU usage (fixes #141) (#151)
* Add backoff to reduce CPU usage

* Update driver version for CPU fix
2023-10-31 23:04:15 -04:00
Terence Boldt 0dbb55fda1 Add 64 bit OS support, upgrade Go, allow non-pi user 2023-10-31 21:51:06 -04:00
Terence Boldt 5db78ba3b9
Do apt update before installation
Fixes #140
2023-04-04 18:56:22 -04:00
Terence Boldt 8ef94ba5d3 Update schematic PDF 2023-03-08 09:26:35 -05:00
Terence Boldt 53377e2dc0 Add bill of materials 2023-03-08 09:26:35 -05:00
Terence Boldt d20717cc79
Update schematics for 0.1 µF caps (#136) 2023-03-01 05:53:35 -07:00
Terence Boldt cca6d43657
Update library for security fix (#135) 2023-03-01 05:33:15 -07:00
Terence Boldt 9883348baa
Add drive load (#133) 2023-02-04 19:09:57 -05:00
Terence Boldt ad6d103cca
Fix hang after shell exit (#131) 2023-01-30 20:45:24 -05:00
Terence Boldt 60a311549d
Update 2023-01-28 10:23:27 -05:00
Terence Boldt 27b01d0925
Update 2023-01-28 09:53:39 -05:00
Terence Boldt 554d3390d6
Set default dir to driveimage (#125) 2023-01-26 22:33:08 -05:00
Terence Boldt 813ab1caee
Change bas files to symlinks (#123) 2023-01-25 23:07:09 -05:00
Terence Boldt b10dec3e50
Add live drive regeneration and loading (#122) 2023-01-25 22:32:47 -05:00
Terence Boldt 841b11f9ae
Add graphics conversion
* Update copyright year

* Update module to add image support
2023-01-14 10:51:39 -05:00
Terence Boldt 382cfebc26
Update 2023-01-08 22:50:22 -05:00
Terence Boldt 91346471ae
Update driver version 2023-01-08 22:35:15 -05:00
Terence Boldt 28dc09a877
Dynamic drive (#114)
* Fix for when not using dynamic drive
2023-01-08 18:03:57 -05:00
Terence Boldt c64f187251
Create codeql.yml 2023-01-01 10:21:22 -05:00
Terence Boldt 9c0d819f5a
Delete codacy-analysis.yml 2023-01-01 10:20:38 -05:00
Terence Boldt b507ec99a9
Create codacy.yml 2023-01-01 10:20:23 -05:00
Terence Boldt 803d5f436c
Update 2022-12-31 12:40:27 -05:00
Terence Boldt d90b94f4b1 Fix compare for build 2022-12-31 12:39:15 -05:00
Terence Boldt a13866a458 Fix boot of dynamic drive 2022-12-31 12:39:15 -05:00
Terence Boldt f0e67ea5ff Fix dynamic drive 2022-12-31 12:39:15 -05:00
Terence Boldt 91efe725b7 Add dynamic drive support 2022-12-31 12:39:15 -05:00
Terence Boldt 4b7d990209 Fix security warnings in 2022-04-27 22:50:04 -04:00
Terence Boldt ed2acd9d5f Update boot image 2022-04-27 22:36:27 -04:00
Terence Boldt da04931665 Add error handling 2022-04-27 22:36:27 -04:00
Terence Boldt 74702e2cb5 Fix setup script 2022-03-19 14:08:22 -04:00
Terence Boldt 9f85fba5ad Add setup script 2022-03-19 14:05:20 -04:00
Terence Boldt 55d94dd1f0 Update RPi.Command and driver for it 2022-03-03 22:34:45 -05:00
Terence Boldt 707c704119
Merge pull request #98 from tjboldt/binary-compare
Verify generated binaries
2022-03-02 21:58:45 -05:00
Terence Boldt d33264edf5 Fix Codacy warning 2022-03-02 21:54:28 -05:00
Terence Boldt d897149901 Verify generated binaries 2022-03-02 21:46:45 -05:00