This repository is a library of several standalone assembly language software components for accessing various standard input/output devices of the Apple Lisa computer. "Standalone" means that no one component depends on any other. This design aims to make it easier for programmers to use only the components they need for their programs.
At time of writing, only some of the Lisa's standard I/O facilities, and only some ways of using those facilities, are supported by this library. More may be added as directed by need and spare time.
Because people might choose to package individual library components into their own software projects, nearly all important documentation---including references, acknowledgements, and release history---appears within the source code files themselves.
| Facility | Component | Notes |
|---|---|---|
| Keyboard and mouse | lisa_console_kbmouse.x68 |
|
| Text on the display | lisa_console_screen.x68 |
Needs a font |
| Parallel-port hard drive | lisa_profile_io.x68 |
Relocatable |
| Serial ports | -- | TODO |
| Floppy drive(s) | -- | TODO |
| Other parallel-port I/O | -- | TODO |
| AppleNet card | -- | TODO |
Expanded notes:
- "Needs a font":
lisa_console_screen.x68is mostly a macro library that creates display code for 8-pixel-wide fixed-width font data supplied by you. The filefont_Lisa_Console.x68contains an example of the font data the library requires, along with documentation, of course. Additionally, the programbdf_to_lisa_console_screen_x68.pycan convert some fixed-width BDF font files to the necessary format.
This I/O library and any supporting programs, software libraries, and documentation distributed alongside it are released into the public domain without any warranty. See the LICENSE file for details.