mirror of
https://github.com/catseye/SixtyPical.git
synced 2024-10-07 15:54:37 +00:00
56 lines
1.8 KiB
Markdown
56 lines
1.8 KiB
Markdown
SixtyPical
|
|
==========
|
|
|
|
SixtyPical is a very low-level programming language, similar to 6502 assembly,
|
|
with static analysis through abstract interpretation.
|
|
|
|
In practice, this means it catches things like
|
|
|
|
* you forgot to clear carry before adding something to the accumulator
|
|
* a subroutine that you call trashes a register you thought was preserved
|
|
|
|
and suchlike.
|
|
|
|
It is a **work in progress**, currently at the **proof-of-concept** stage.
|
|
|
|
The current released version of SixtyPical is 0.5. The current development
|
|
version of SixtyPical, unreleased as of this writing, is 0.6-PRE.
|
|
|
|
Documentation
|
|
-------------
|
|
|
|
* Design Goals — coming soon.
|
|
* [SixtyPical specification](doc/SixtyPical.md)
|
|
* [SixtyPical history](HISTORY.md)
|
|
* [Literate test suite for SixtyPical syntax](tests/SixtyPical Syntax.md)
|
|
* [Literate test suite for SixtyPical execution](tests/SixtyPical Execution.md)
|
|
* [Literate test suite for SixtyPical analysis](tests/SixtyPical Analysis.md)
|
|
* [Literate test suite for SixtyPical compilation](tests/SixtyPical Compilation.md)
|
|
* [6502 Opcodes used/not used in SixtyPical](doc/6502 Opcodes.md)
|
|
|
|
TODO
|
|
----
|
|
|
|
For 0.6:
|
|
|
|
* `call` vector (generates an indirect JMP.)
|
|
* `goto` (tail call) a routine or a vector.
|
|
* A more involved demo for the C64 — one that sets up an interrupt?
|
|
|
|
For 0.7:
|
|
|
|
* `word` type.
|
|
* `trash` instruction.
|
|
* zero-page memory locations.
|
|
* indirect addressing.
|
|
|
|
At some point...
|
|
|
|
* `interrupt` routines.
|
|
* add line number (or at least routine name) to error messages.
|
|
* 6502-mnemonic aliases (`sec`, `clc`)
|
|
* other handy aliases (`eq` for `z`, etc.)
|
|
* have `copy` instruction able to copy a constant to a user-def mem loc, etc.
|
|
* add absolute addressing in shl/shr, absolute-indexed for add, sub, etc.
|
|
* check and disallow recursion.
|