This project contains a rust(rocket) web application which acts as a test harness for the various test ROMs produced against the CP/M operating system.
It implements the minimal BIOS functions (C_WRITE, C_WRITESTR) to execute those tests and outputs the results to the command line.
Using the test ROMs found here: [https://altairclone.com/downloads/cpu_tests/] the following tests have been validated:
- 8080PRE.COM
- TST8080.COM
- CPUTEST.COM
- Probably passes but would take in the order of hours to run to completion given current performance constraints
- 8080EXM.COM
- Fails on first set of tests
dad <b,d,h,sp>................
- Fails on first set of tests
This application can be used to validate the 8080 implementation using CP/M based test ROMs. It can be run with docker-compose by running
docker-compose up --build
To test a ROM you can then do
curl -X POST -F 'rom=@/my/file/rom.com' localhost:8080/api/v1/load
In most ROMs results are printed out using a CALL 05 (CP/M bios WRITE commands) which we monkey patch to be OUT 0. The cpm-test-harness docker image will output any results to stdout where you can view the results either in the docker-compose output or the specific image logs.
Output can be viewed by looking at the container logs:
docker logs cpm-test-harness_cpm-test-harness_1
which on a succesful run of 8080PRE.COM will return
C_WRITESTR 818
8080 Preliminary tests complete