55 lines
1.7 KiB
Markdown
55 lines
1.7 KiB
Markdown
# To do — Summary
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This is a quick todo list.
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For extended commentary, see [issues](issues.md).
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## Open
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### Todo
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- Finish WIP on run-cli arg parsing
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- Pass CYCLE_COUNT as a cli arg
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- (cpu) !! Fix overflow flag
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- Add a flag for bank-switching to the ~zero-page
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- Remove run-scripts and add the ability to run `./cpu.js` and `./assembler.js` directly -- cf. [#1](issues.md#1---improve-cli-interface)
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- [fix] (cpu) Make single-stepping work with simulated keypad
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### Features
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- (cpu) allow arrow keys, too
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- [fix] (cpu) Execute `JMP $FF` on startup / Implement ROM — see [#2](issues.md#2---startup-execute-jmp-ff)
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- (assembler) Validate labels
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- (assembler) Extract debugging to its own module
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- (cpu) Consider adding a VIP-style keypad-based machine code monitor
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- (cpu) Add a mode that prints the display as text, but still animates
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- (cpu) Allow running pre-compiled machine code
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- (cpu) DRY out addition and subtraction
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- [Extended system (secret bonus operations)](../notes/2023-08-07--dev-notes.md)
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- (research) Review CHIP-8
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- read about the spec / ISA
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- read these, and add them to the bibliography:
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- Steve Losh: https://stevelosh.com/blog/2016/12/chip8-input/
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- https://tonisagrista.com/blog/2021/chip8-spec/
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### Documentation
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- Improve docs for flags register
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### Testing
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- Display (hex) numbers
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- Greater than
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- Minimal LOGO-ish interpreter for turtle graphics
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## Closed
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- 2023-08-26 - [fix] (logging) - 'undefined operand' situation is caused by assembling to an initial IP of $1C, which is an odd number
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- (assembler) Pass asm line thru to cpu to print when debugging
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## Abandoned
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- (assembler) Return pure machine code when printing to stdout (and not in debug mode) |