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Adds sample rust program

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This commit is contained in:
Albin Chaboissier
2025-11-15 02:11:00 +01:00
parent ae0e33132e
commit 674c399ef6
4 changed files with 100 additions and 84 deletions
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28
bench/programs_rust/fpga-lib/src/interface.rs Normal file
View File

@@ -0,0 +1,28 @@
pub struct Buttons {}
impl Buttons
{
pub unsafe fn get_button(button_id: u8) -> bool
{
unsafe { *LED_IP_ADDRESS >> (button_id) & 0b1 == 0b1 }
}
}
pub struct Leds {}
impl Leds
{
pub unsafe fn set_led(led_id: u8, state: bool)
{
if state
{
unsafe { *LED_IP_ADDRESS |= (state as u32) << (led_id + 4) }
}
else
{
unsafe { *LED_IP_ADDRESS &= !((state as u32) << (led_id + 4)) }
}
}
}
pub const LED_IP_ADDRESS: *mut u32 = 0x30000000 as *mut u32;

7
bench/programs_rust/fpga-lib/src/lib.rs
View File

@@ -1,5 +1,6 @@
#![no_std]
pub mod interface;
pub mod register;
pub mod vga;
@@ -7,8 +8,10 @@ pub mod vga;
macro_rules! panic_handler {
() => {
#[panic_handler]
fn panic(_info: &core::panic::PanicInfo) -> ! {
loop {}
fn panic(_info: &core::panic::PanicInfo) -> !
{
loop
{}
}
};
}

51
bench/programs_rust/fpga-lib/src/vga.rs
View File

@@ -41,17 +41,14 @@ impl VGA
/// # Safety
/// `x` must be less than `WIDTH` and `y` must be less than `HEIGHT`
#[inline(never)]
pub unsafe fn draw_char(x: u16, y: u16, c: char, color: Color)
{
let c = if (c as u8 > b'~') || ((c as u8) < b' ')
{
unsafe { Self::write_pixel_unsafe(x, y, RED) };
b'/' - b' '
}
else
{
unsafe { Self::write_pixel_unsafe(x, y, GREEN) };
c as u8 - b' '
};
@@ -66,12 +63,48 @@ impl VGA
let xx = x + i;
let yy = y + j;
// if xx < (WIDTH as u16)
// && yy < (HEIGHT as u16)
// && unsafe { Self::font_plate_index(char_x as u16 + i, char_y as u16 + j) }
if unsafe { Self::font_plate_index(char_x as u16 + i, char_y as u16 + j) }
if xx < (WIDTH as u16)
&& yy < (HEIGHT as u16)
&& unsafe { Self::font_plate_index(char_x as u16 + i, char_y as u16 + j) }
{
// //unsafe { Self::write_pixel_unsafe(xx, yy, color) }
unsafe { Self::write_pixel_unsafe(xx, yy, color) }
}
}
}
}
pub unsafe fn draw_char_bg(x: u16, y: u16, c: char, color: Color, bg_color: Color)
{
let c = if (c as u8 > b'~') || ((c as u8) < b' ')
{
b'/' - b' '
}
else
{
c as u8 - b' '
};
// Get char position within font plate
let char_x = (c as usize % 32) * FONT_WIDTH;
let char_y = (c as usize / 32) * FONT_HEIGHT;
for i in 0..(FONT_WIDTH as u16)
{
for j in 0..(FONT_HEIGHT as u16)
{
let xx = x + i;
let yy = y + j;
if xx < (WIDTH as u16) && yy < (HEIGHT as u16)
{
if unsafe { Self::font_plate_index(char_x as u16 + i, char_y as u16 + j) }
{
unsafe { Self::write_pixel_unsafe(xx, yy, color) }
}
else
{
unsafe { Self::write_pixel_unsafe(xx, yy, bg_color) }
}
}
}
}
@@ -81,7 +114,7 @@ impl VGA
/// The text must have a length that can fit within a `u16`
pub unsafe fn draw_string(x: u16, y: u16, str: &str, color: Color)
{
str.bytes().enumerate().for_each(|(i, c)| unsafe {
str.chars().enumerate().for_each(|(i, c)| unsafe {
Self::draw_char(x + i as u16 * (FONT_WIDTH as u16), y, c as char, color)
});
}

98
bench/programs_rust/hello-rust/src/main.rs
View File

@@ -4,87 +4,39 @@
use core::arch::asm;
use fpga_lib::{
interface::{Buttons, Leds},
panic_handler,
register::X31,
vga::{BLUE, FONT_WIDTH, GREEN, RED, VGA, WHITE},
vga::{BLACK, BLUE, FONT_WIDTH, GREEN, RED, VGA, WHITE},
};
panic_handler! {}
#[inline(never)]
pub fn magic(x: &mut u16, y: &mut u16, z: &mut bool, i: u16, j: u16)
{
if *x > i && *y < 198 && *z
{
unsafe { VGA::write_pixel_unsafe(i, j, GREEN) };
}
else
{
unsafe { VGA::write_pixel_unsafe(i, j, RED) };
}
//*x += 1;
*y -= 1;
}
#[unsafe(no_mangle)]
pub extern "C" fn main() -> !
{
let mut x = core::hint::black_box(100u16);
let mut y = core::hint::black_box(192);
let mut z = core::hint::black_box(true);
let x = core::hint::black_box(&mut x);
let y = core::hint::black_box(&mut y);
let z = core::hint::black_box(&mut z);
for i in 0..(*x)
{
magic(x, y, z, i, i);
}
// if (c as u8 > b'~') || ((c as u8) < b' ')
// {
// X31::write_const::<0x01>();
// }
// else
// {
// X31::write_const::<0xFFFFFFFFFFFFFFFF>();
// };
//
// if (c as u8 > b'~') || ((c as u8) < b' ')
// {
// X31::write_const::<0x01>();
// }
// else
// {
// X31::write_const::<0xFFFFFFFFFFFFFFFF>();
// };
// for i in 0..100
// {
// unsafe { VGA::write_pixel_unsafe(i, i, WHITE) };
// }
//
// let mut a = core::hint::black_box(true);
// let mut x = core::hint::black_box(121);
// let mut y = core::hint::black_box(221);
// for i in 0..100
// {
// if i < x && i < y && a
// {
// unsafe {
// //VGA::write_pixel_unsafe(i, i, WHITE);
// }
// }
// }
// let mut a = core::hint::black_box(true);
// if a
// {
// X31::write_const::<0xdead1ffffffff>();
// }
loop
{}
{
unsafe {
VGA::draw_string(10, 10, "Running RUST !", GREEN);
VGA::draw_string(10, 23, "LedIp state :", RED);
for i in 0..4
{
VGA::draw_char(10 + i * 16, 46, 'B', RED);
VGA::draw_char(16 + i * 16, 46, (b'0' + i as u8) as char, RED);
if Buttons::get_button(i as u8)
{
Leds::set_led(i as u8, true);
VGA::draw_char_bg(10 + i * 16, 59, '1', GREEN, BLACK);
}
else
{
Leds::set_led(i as u8, false);
VGA::draw_char_bg(10 + i * 16, 59, '0', RED, BLACK);
}
}
}
}
}