cardiograph-computer/issues/todo.md

49 lines
1.4 KiB
Markdown
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# To do — Summary
This is a quick todo list.
For extended commentary, see [issues](issues.md).
## Open
### Todo
- Add a flag for bank-switching to the ~zero-page
- Remove run-scripts and add the ability to run `./cpu.js` and `./assembler.js` directly -- cf. [#1](issues.md#1---improve-cli-interface)
- [fix] (cpu) Make single-stepping work with simulated keypad
### Features
- [fix] (cpu) Execute `JMP $FF` on startup / Implement ROM — see [#2](issues.md#2---startup-execute-jmp-ff)
- (assembler) Validate labels
- (assembler) Extract debugging to its own module
- (cpu) Consider adding a VIP-style keypad-based machine code monitor
- (cpu) Add a mode that prints the display as text, but still animates
- (cpu) Allow running pre-compiled machine code
- (cpu) DRY out addition and subtraction
- [Extended system (secret bonus operations)](../notes/2023-08-07--dev-notes.md)
- (research) Review CHIP-8
- read about the spec / ISA
- read these, and add them to the bibliography:
- Steve Losh: https://stevelosh.com/blog/2016/12/chip8-input/
- https://tonisagrista.com/blog/2021/chip8-spec/
### Documentation
- Improve docs for flags register
### Testing
- Display (hex) numbers
- Greater than
- Minimal LOGO-ish interpreter for turtle graphics
## Closed
- (assembler) Pass asm line thru to cpu to print when debugging
## Abandoned
- (assembler) Return pure machine code when printing to stdout (and not in debug mode)