blob: 76d2dc7b3375a861118f58d95e68fa69061dd538 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
RuNES
=====
.. image:: https://img.shields.io/crates/v/runes.svg
:target: https://github.com/Determinant/runes
.. image:: https://img.shields.io/crates/l/runes.svg
:target: https://github.com/Determinant/runes
As we know, there have been a ton of NES emulator implementations in various
kinds of languages (mostly C). All of these emulators come with different
accuracy and portability. RuNES is an attempt to build a reasonably
accurate (cycle-level accurate), light-weight and efficient emulation
core library using Rust. Unlike sprocketnes_ or pinky_, RuNES strives to
provide with a clean and minimal core library without standard library (i.e.,
without Box, Rc, Vectors, etc.) that could be compiled and easily ported to
embedded environments. Of course, a simple SDL-based GUI is also provided as a
demonstration of use.
Feature
=======
- Core library with minimal use of the Rust core crate, and zero use of std.
- Support standard 6502 instruction set (unofficial instruction will be
considered in the future).
- Cycle-level accuracy.
Guidelines
==========
- Never use std in the core library.
- At the same time, avoid ``unsafe`` as much as possible, but use it at
discretion to improve performance: remove unnecessary checks within a very
localized context.
- Keep the core library code base minimal.
.. _sprocketnes: https://github.com/pcwalton/sprocketnes
.. _pinky: https://github.com/koute/pinky
Build
=====
::
cargo build --release # build the library only (no std dep)
cargo build --examples --release # or build the example emulator (requires std)
|