RE6502/simple_test_machine

The Simple Test Machine

The Simple Test Machine is a very basic virtual machine that uses the RE6502 as the cpu and a custom Console for simple I/O operations. There are example programs in the programs directory for reference/testing. The important memory addresses (I/O buffers, bit flags, etc) are listed in the src/machine.rs file.

Running the Simple Test Machine

To build the project you can cd simple_test_machine then cargo build or cargo run. If you run it on it's own it will just run some basic internal test programs. To run a specific progam you can pass the name of the binary to load when the machine starts up. To do this with cargo try cargo run -- path/to/the/program (ex. cargo run -- programs/bin/hello.rw).

Assembling Programs for the Simple Test Machine

Program binaries are not included in this repo but you can build them from the .asm files in the programs subdirectory. I've tested building these programs with the win2c64 assembler (it also has linux lin2c64 and mac mac2c64 versions) that can be found here: https://www.aartbik.com/retro.php.

To use the assembler you can invoke it directly or use the assemble.bat script in the programs subdirectory.

Using the assemble.bat script

To use the assemble.bat script you'll need to cd into the programs directory: cd programs (or, if you're in the project root: cd simple_test_machine/programs) then you can run the script with .\assemble.bat hello.asm. The script will move the resulting binary into the bin directory.

Using win2c64 directly

You can invoke win2c64 directly with win2c64.exe -R my_program.asm The -R option is necessary to have the assembler output the binary in the correct format.