├── .gitignore
├── src
    ├── main.prg
    ├── compile.sh
    └── main.rs
├── screenshot.png
├── Cargo.toml
├── README.md
└── Cargo.lock


/.gitignore:
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1 | /target
2 | **/*.rs.bk


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/src/main.prg:
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https://raw.githubusercontent.com/xTibor/rs-on-c64/HEAD/src/main.prg


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/screenshot.png:
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https://raw.githubusercontent.com/xTibor/rs-on-c64/HEAD/screenshot.png


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/Cargo.toml:
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1 | [package]
2 | name = "rust-on-c64"
3 | version = "0.1.0"
4 | authors = ["Tibor Nagy <xnagytibor@gmail.com>"]
5 | edition = "2018"
6 | 
7 | [dependencies]
8 | libc = "0.2.48"
9 | 


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/src/compile.sh:
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1 | # This is a mess, needs proper build system.
2 | 
3 | rm main.o main.c main.prg
4 | 
5 | ~/git/rust-c64/mrustc/bin/mrustc -L /home/tibor/git/rust-c64/mrustc/output/ main.rs
6 | 
7 | ~/git/rust-c64/cc65/bin/cl65 main.c -o main.prg && x64 main.prg
8 | 


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/README.md:
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 1 | # rs-on-c64
 2 | 
 3 | An experiment of running Rust language code on the Commodore 64 using an alternate unofficial toolchain. There's a demo PRG executable in the src directory.
 4 | 
 5 | This project is not affiliated with or endorsed by the Rust Foundation or the Rust Project.
 6 | 
 7 | ![](screenshot.png)
 8 | 
 9 | **Requires**:
10 | * https://github.com/xTibor/mrustc
11 | * https://github.com/xTibor/cc65
12 | 
13 | 


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/Cargo.lock:
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 1 | [[package]]
 2 | name = "libc"
 3 | version = "0.2.48"
 4 | source = "registry+https://github.com/rust-lang/crates.io-index"
 5 | 
 6 | [[package]]
 7 | name = "test-project"
 8 | version = "0.1.0"
 9 | dependencies = [
10 |  "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
11 | ]
12 | 
13 | [metadata]
14 | "checksum libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)" = "e962c7641008ac010fa60a7dfdc1712449f29c44ef2d4702394aea943ee75047"
15 | 


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/src/main.rs:
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 1 | #![feature(lang_items, core_intrinsics)]
 2 | #![feature(start)]
 3 | #![no_std]
 4 | use core::intrinsics;
 5 | 
 6 | extern crate libc;
 7 | 
 8 | #[start]
 9 | fn start(_argc: isize, _argv: *const *const u8) -> isize {
10 |     unsafe {
11 |         let border_color = 0xD020 as *mut u8;
12 |         let background_color = 0xD021 as *mut u8;
13 | 
14 |         let screen_ptr = 0x0400 as *mut u8;
15 |         let color_ptr = 0xD800 as *mut u8;
16 | 
17 |         *border_color = 0x0A;
18 |         *background_color = 0x00;
19 | 
20 |         core::intrinsics::write_bytes(screen_ptr, 0x20, 1000);
21 | 
22 |         let text = b"hello from rust";
23 |         let mut n = 0;
24 | 
25 |         loop {
26 |             let position = n * 40 + n;
27 | 
28 |             core::intrinsics::copy(text.as_ptr(), screen_ptr.offset(position), text.len());
29 |             core::intrinsics::write_bytes(color_ptr.offset(position), *border_color, text.len());
30 | 
31 |             n = (n + 1) % 25;
32 | 
33 |             let i = 0;
34 |             while i < 63 {
35 |                 *border_color += 1;
36 |                 i += 1;
37 |             }
38 |         }
39 |     }
40 |     0
41 | }
42 | 
43 | #[lang = "eh_personality"]
44 | #[no_mangle]
45 | pub extern fn rust_eh_personality() {
46 | }
47 | 
48 | #[lang = "panic_fmt"]
49 | #[no_mangle]
50 | pub extern fn rust_begin_panic(_msg: core::fmt::Arguments,
51 |                                _file: &'static str,
52 |                                _line: u32) -> ! {
53 |     unsafe { intrinsics::abort() }
54 | }
55 | 


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