a2audit/README.md

Apple II Audit

This repository contains routines to audit Apple II computers (II, II+, IIe, IIc), providing information about hardware, ROM versions, RAM configuration, and behavior.

The file to download and try is audit/audit.dsk.

Eventually, it should comprise a complete emulator test suite, enabling emulator writers to systematically identify and eliminate software-testable differences from real hardware. If a difference visible to code can be found, a test should be added to this suite.

Error messages

Error messages can be viewed at zellyn.com/a2audit/a2audit/v0 or on github.

Status

Done

• toolchain for automation (diskii)
• sha1sum assembly code (currently not used yet because it's slow)
• language card tests
• main/auxiliary memory softswitch behavior tests
• softswitch reading tests
• Incorporate Cxxx testing into data-driven test
• Add testcases for Cxxx testing
• duplicate HOME and COUT routines from AppleII, so IIe tests don't depend on Cxxx ROM working
• Some simple "same result from two different modes" graphics tests

TODO

• IIe: check that we really have 128K (aux switching actually does anything)
• IIe: don't test auxmem softswitches if we only have 64k
• weirder softswitch behavior corner cases
• floating-bus tests
• dbl lores tests
• weird lores tests
• undelayed hires tests

Raison d'être

This test suite is a step on the way to implementing Apple IIe (enhanced) support in OpenEmulator: I may alternate adding tests here and features there.