Merge branch 'main' of ssh://musuka.dev:2222/paoda/scratch

This commit is contained in:
Rekai Nyangadzayi Musuka 2021-08-26 02:41:13 -05:00
commit ec57dc7231
13 changed files with 635 additions and 93 deletions

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@ -37,7 +37,6 @@ pub fn draw_sprite(disp: *Display, pos: *const Point, data: *const []u8) bool {
const temp = (byte >> x_bit_offset) & 0x01; const temp = (byte >> x_bit_offset) & 0x01;
const bit = @intCast(u1, temp); const bit = @intCast(u1, temp);
// const bit = @as(u1, temp);
const i = DISPLAY_WIDTH * y + x; const i = DISPLAY_WIDTH * y + x;

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@ -14,7 +14,7 @@ pub const Cpu = struct {
sp: u16, sp: u16,
v: [16]u8, v: [16]u8,
stack: [16]u16, stack: [16]u16,
memory: [4096]u8, memory: [0x1000]u8,
disp: Display, disp: Display,
}; };
@ -34,7 +34,6 @@ pub fn decode(cpu: *Cpu, word: u16) ?Instruction {
const nib3: u4 = @intCast(u4, (word & 0x00F0) >> 4); const nib3: u4 = @intCast(u4, (word & 0x00F0) >> 4);
const nib4: u4 = @intCast(u4, (word & 0x000F) >> 0); const nib4: u4 = @intCast(u4, (word & 0x000F) >> 0);
if (nib1 == 0x0) { if (nib1 == 0x0) {
// nib2 is 0x0, nib3 is 0xE // nib2 is 0x0, nib3 is 0xE
@ -84,20 +83,20 @@ pub fn decode(cpu: *Cpu, word: u16) ?Instruction {
pub fn execute(cpu: *Cpu, instr: Instruction) void { pub fn execute(cpu: *Cpu, instr: Instruction) void {
switch (instr) { switch (instr) {
.CLS => std.debug.print("CLS\n", .{}), .CLS => std.log.debug("CLS", .{}),
.RET => { .RET => {
std.debug.print("RET\n", .{}); std.log.debug("RET", .{});
cpu.pc = cpu.stack[cpu.sp]; cpu.pc = cpu.stack[cpu.sp];
cpu.sp -= 1; cpu.sp -= 1;
}, },
.JP => |addr| { .JP => |addr| {
std.debug.print("JP 0x{X:}\n", .{ addr }); std.log.debug("JP 0x{X:}", .{ addr });
cpu.pc = addr; cpu.pc = addr;
}, },
.CALL => |addr| { .CALL => |addr| {
std.debug.print("CALL 0x{X:}\n", .{ addr }); std.log.debug("CALL 0x{X:}", .{ addr });
cpu.sp += 1; cpu.sp += 1;
cpu.stack[cpu.sp] = cpu.pc; cpu.stack[cpu.sp] = cpu.pc;
@ -106,7 +105,7 @@ pub fn execute(cpu: *Cpu, instr: Instruction) void {
.SE_3 => |args| { .SE_3 => |args| {
const x = args.x; const x = args.x;
const kk = args.kk; const kk = args.kk;
std.debug.print("SE V{}, 0x{X:}\n", .{ x, kk }); std.log.debug("SE V{}, 0x{X:}", .{ x, kk });
if (cpu.v[x] != kk) { if (cpu.v[x] != kk) {
cpu.pc += 2; cpu.pc += 2;
@ -115,19 +114,19 @@ pub fn execute(cpu: *Cpu, instr: Instruction) void {
.LD_6 => |args| { .LD_6 => |args| {
const x = args.x; const x = args.x;
const kk = args.kk; const kk = args.kk;
std.debug.print("LD V{} 0x{X:}\n", .{ x, kk }); std.log.debug("LD V{} 0x{X:}", .{ x, kk });
cpu.v[x] = kk; cpu.v[x] = kk;
}, },
.LD_I => |addr| { .LD_I => |addr| {
std.debug.print("LD I, 0x{X:}\n", .{ addr }); std.log.debug("LD I, 0x{X:}", .{ addr });
cpu.i = addr; cpu.i = addr;
}, },
.DRW => |args| { .DRW => |args| {
const x = args.x; const x = args.x;
const y = args.y; const y = args.y;
const n = args.n; const n = args.n;
std.debug.print("DRW V{}, V{}, 0x{X:}\n", .{ x, y, n }); std.log.debug("DRW V{}, V{}, 0x{X:}", .{ x, y, n });
const draw_pos: Point = .{ .x = cpu.v[x], .y = cpu.v[y] }; const draw_pos: Point = .{ .x = cpu.v[x], .y = cpu.v[y] };
const sprite_data = cpu.memory[cpu.i..(cpu.i + n)]; const sprite_data = cpu.memory[cpu.i..(cpu.i + n)];
@ -141,7 +140,7 @@ pub fn execute(cpu: *Cpu, instr: Instruction) void {
.ADD_7 => |args| { .ADD_7 => |args| {
const x = args.x; const x = args.x;
const kk = args.kk; const kk = args.kk;
std.debug.print("ADD V{}, 0x{X:}\n", .{ x, kk }); std.log.debug("ADD V{}, 0x{X:}", .{ x, kk });
cpu.v[x] = cpu.v[x] + kk; cpu.v[x] = cpu.v[x] + kk;
} }
@ -158,18 +157,19 @@ fn load_rom(cpu: *Cpu, buf: []u8) void {
} }
pub fn load_rom_path(cpu: *Cpu, path: []const u8) !void { pub fn load_rom_path(cpu: *Cpu, path: []const u8) !void {
var alloc = std.heap.page_allocator; var heap = std.heap.page_allocator;
const file = try std.fs.cwd().openFile(path, .{ .read = true }); const file = try std.fs.cwd().openFile(path, .{ .read = true });
defer file.close(); defer file.close();
const file_size = try file.getEndPos(); const file_size = try file.getEndPos();
const rom_buf = try file.readToEndAlloc(alloc, file_size); const rom_buf = try file.readToEndAlloc(heap, file_size);
defer heap.free(rom_buf);
load_rom(cpu, rom_buf); load_rom(cpu, rom_buf);
} }
pub fn cycle(cpu: *Cpu) void { pub fn step(cpu: *Cpu) void {
const opcode = fetch(cpu); const opcode = fetch(cpu);
const maybe_instr = decode(cpu, opcode); const maybe_instr = decode(cpu, opcode);

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@ -1,107 +1,77 @@
const std = @import("std"); const std = @import("std");
const cpu = @import("cpu.zig"); const emu = @import("emu.zig");
const Display = @import("display.zig").Display; const Display = @import("display.zig").Display;
const c = @cImport({ const c = @cImport(@cInclude("SDL.h"));
@cInclude("SDL2/SDL.h");
});
const assert = @import("std").debug.assert;
// See https://github.com/zig-lang/zig/issues/565 const Cpu = emu.Cpu;
// SDL_video.h:#define SDL_WINDOWPOS_UNDEFINED SDL_WINDOWPOS_UNDEFINED_DISPLAY(0)
// SDL_video.h:#define SDL_WINDOWPOS_UNDEFINED_DISPLAY(X) (SDL_WINDOWPOS_UNDEFINED_MASK|(X))
// SDL_video.h:#define SDL_WINDOWPOS_UNDEFINED_MASK 0x1FFF0000u
const SDL_WINDOWPOS_UNDEFINED = @bitCast(c_int, c.SDL_WINDOWPOS_UNDEFINED_MASK);
extern fn SDL_PollEvent(event: *c.SDL_Event) c_int; const WIDTH = 64;
const HEIGHT = 32;
const WINDOW_WIDTH = WIDTH * 10;
const WINDOW_HEIGHT = HEIGHT * 10;
const PIXELBUF_LEN = WIDTH * HEIGHT * @sizeOf(u32);
// SDL_RWclose is fundamentally unrepresentable in Zig, because `ctx` is
// evaluated twice. One could make the case that this is a bug in SDL,
// especially since the docs list a real function prototype that would not
// have this double-evaluation of the parameter.
// If SDL would instead of a macro use a static inline function,
// it would resolve the SDL bug as well as make the function visible to Zig
// and to debuggers.
// SDL_rwops.h:#define SDL_RWclose(ctx) (ctx)->close(ctx)
inline fn SDL_RWclose(ctx: [*]c.SDL_RWops) c_int {
return ctx[0].close.?(ctx);
}
pub fn main() !void { pub fn main() !void {
// Initialize SDL2 _ = c.SDL_Init(c.SDL_INIT_VIDEO);
if (c.SDL_Init(c.SDL_INIT_VIDEO) != 0) {
c.SDL_Log("Unable to initialize SDL: %s", c.SDL_GetError());
return error.SDLInitializationFailed;
}
defer c.SDL_Quit(); defer c.SDL_Quit();
// Create Screen (Maybe introduce scaling somehow?) const window = c.SDL_CreateWindow("CHIP-8", c.SDL_WINDOWPOS_CENTERED, c.SDL_WINDOWPOS_CENTERED, WINDOW_WIDTH, WINDOW_HEIGHT, c.SDL_WINDOW_OPENGL);
const screen = c.SDL_CreateWindow("Zig8", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 320, c.SDL_WINDOW_OPENGL) orelse defer c.SDL_DestroyWindow(window);
{
c.SDL_Log("Unable to create window: %s", c.SDL_GetError());
return error.SDLInitializationFailed;
};
defer c.SDL_DestroyWindow(screen);
// Create Renderer const renderer = c.SDL_CreateRenderer(window, -1, c.SDL_RENDERER_ACCELERATED);
const renderer = c.SDL_CreateRenderer(screen, -1, c.SDL_RENDERER_ACCELERATED) orelse {
c.SDL_Log("Unable to create renderer: %s", c.SDL_GetError());
return error.SDLInitializationFailed;
};
defer c.SDL_DestroyRenderer(renderer); defer c.SDL_DestroyRenderer(renderer);
// Create RGBA Texture const texture = c.SDL_CreateTexture(renderer, c.SDL_PIXELFORMAT_RGBA8888, c.SDL_TEXTUREACCESS_STATIC, WIDTH, HEIGHT);
const texture = c.SDL_CreateTexture(renderer, c.SDL_PIXELFORMAT_RGBA8888, c.SDL_TEXTUREACCESS_STREAMING, 64, 32) orelse {
c.SDL_Log("Unable to create texture: %s", c.SDL_GetError());
return error.SDLInitializationFailed;
};
defer c.SDL_DestroyTexture(texture); defer c.SDL_DestroyTexture(texture);
// Initialize CHIP-8 Emulator var zig8 = emu.Cpu {
var chip8 = cpu.Cpu {
.i = 0x00, .i = 0x00,
.pc = 0x0200, .pc = 0x200,
.sp = 0x00, .sp = 0x00,
.v = [_]u8{0x0} ** 16, .v = [_]u8{0x00} ** 16,
.stack = [_]u16{0x0} ** 16, .stack = [_]u16{0x00} ** 16,
.memory = [_]u8{0x0} ** 4096, .memory = [_]u8{0x0000} ** 0x1000,
.disp = Display.new(), .disp = Display.new(),
}; };
var path = "./bin/IBM Logo.ch8"; try emu.load_rom_path(&zig8, "./bin/IBM Logo.ch8");
var pixel_buf: [PIXELBUF_LEN]u8 = [_]u8 {0x00} ** PIXELBUF_LEN;
// Load Game ROM into CHIP-8 Emulator emuloop: while(true) {
try cpu.load_rom_path(&chip8, path); _ = c.SDL_UpdateTexture(texture, null, @ptrCast(*const c_void, &pixel_buf), WIDTH * @sizeOf(u32));
_ = c.SDL_RenderCopy(renderer, texture, null, null);
_ = c.SDL_RenderPresent(renderer);
// Create Pixel Buffer (Temporary)
const buf_size = 64 * 32 * @sizeOf(u32);
var pixels: [buf_size]u8 = [_]u8{255} ** buf_size;
// Render
var quit = false;
while (!quit) {
var buf_ptr: [*c]?*c_void = &@ptrCast(?*c_void, &pixels[0]);
_ = c.SDL_LockTexture(texture, null, buf_ptr, 64 * @sizeOf(u32));
c.SDL_UnlockTexture(texture);
var event: c.SDL_Event = undefined; var event: c.SDL_Event = undefined;
while (SDL_PollEvent(&event) != 0) { while(c.SDL_PollEvent(&event) != 0) {
switch (event.@"type") { switch(event.type) {
c.SDL_QUIT => { c.SDL_QUIT => break :emuloop,
quit = true; else => {}
},
else => {},
} }
} }
_ = c.SDL_RenderClear(renderer); emu.step(&zig8);
_ = c.SDL_RenderCopy(renderer, texture, null, null); draw(&zig8.disp, &pixel_buf);
c.SDL_RenderPresent(renderer); }
}
cpu.cycle(&chip8); fn draw(display: *const Display, pixel_buf: *[8192]u8) void {
var emu_i: usize = 0;
c.SDL_Delay(17); while (emu_i < display.buf.len) : (emu_i += 1) {
var pixel_i = emu_i * 4;
if (display.buf[emu_i] == 0x01) {
pixel_buf[pixel_i] = 0xFF;
pixel_buf[pixel_i + 1] = 0xFF;
pixel_buf[pixel_i + 2] = 0xFF;
pixel_buf[pixel_i + 3] = 0xFF;
} else {
pixel_buf[pixel_i] = 0xFF;
pixel_buf[pixel_i + 1] = 0x00;
pixel_buf[pixel_i + 2] = 0x00;
pixel_buf[pixel_i + 3] = 0x00;
}
} }
} }

10
2021-04-19/max.py Normal file
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@ -0,0 +1,10 @@
dict = {}
for line in open("words.txt"):
word = line.strip()
final_letter = word[-1]
dict[final_letter] = word
print(dict)

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2021-05-05/gamepad-test/Cargo.lock generated Normal file
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@ -0,0 +1,10 @@
[package]
name = "gamepad-test"
version = "0.1.0"
authors = ["Rekai Musuka <rekai@musuka.dev>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
gilrs = "*"

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@ -0,0 +1,21 @@
use gilrs::{Button, Event, Gilrs};
fn main() {
let mut gilrs = Gilrs::new().unwrap();
// Iterate over all connected gamepads
for (_id, gamepad) in gilrs.gamepads() {
println!("{} is {:?}", gamepad.name(), gamepad.power_info());
}
let mut active_gamepad = None;
loop {
if active_gamepad.is_none() {
active_gamepad = gilrs.next_event().map(|e| e.id);
}
let maybe_gamepad = active_gamepad.map(|id| gilrs.gamepad(id));
maybe_gamepad.map(|gamepad| dbg!(gamepad.is_pressed(Button::South)));
}
}

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@ -0,0 +1 @@
import * as AES from "https://github.com/brix/crypto-js/src/aes.js";

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@ -0,0 +1,67 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>How many Letters?</title>
</head>
<body>
<textarea id="input" name="input" id="" cols="30" rows="10"></textarea>
<button id="submit" type="submit">Submit</button>
<h3>Output</h3>
<table id="output"></table>
</body>
<style>
table,
th,
td {
border: 1px solid black;
}
</style>
<script>
const btn = document.querySelector("#submit");
const textarea = document.querySelector("#input");
const table = document.querySelector("#output");
btn.addEventListener("click", () => {
let frequency = getFrequency(textarea.value);
output.innerHTML = mapToTableCells(frequency);
});
function mapToTableCells(map) {
let str = "<tr><th>Character</th><th>Times Appeared</th></tr>";
for (const pair of map[Symbol.iterator]()) {
str += `<tr><td>${pair[0]}</td><td>${pair[1]}</td></tr>`
}
return str;
}
function getFrequency(str) {
const freq = new Map();
for (let i = 0; i < str.length; i++) {
const char = str.charAt(i);
if (freq.has(char)) {
let count = freq.get(char);
freq.set(char, count + 1);
} else {
freq.set(char, 1);
}
}
return freq;
}
</script>
</html>

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@ -0,0 +1,27 @@
# hey bro can I ask for a little help?
# I want to figure out a script or sumn that can count and separate the characters in a string of text
# like if I enter in dushdhaosbvdiebwb
# itll tell me how many of which character is in it
# key, value
# string, integer
# "a": 1
#
def main():
freq = {}
str = input("Enter Text: ")
for char in str:
if char in freq:
freq[char] += 1
else:
freq[char] = 1
print(freq)
if __name__ == "__main__":
main()

7
2021-07-06/fizz_buzz/Cargo.lock generated Normal file
View File

@ -0,0 +1,7 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
name = "fizz_buzz"
version = "0.1.0"

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@ -0,0 +1,8 @@
[package]
name = "fizz_buzz"
version = "0.1.0"
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]

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@ -0,0 +1 @@
fn main(){for n in 1..101{let mut m=String::new();if n%3==0{m+="Fizz";}if n%5==0{m+="Buzz";}println!("{}",if m.len()==0{n.to_string()}else{m});}}