remove chip8 redundant module

1 files changed, 0 insertions, 277 deletions

diff --git a/src/chip8.rs b/src/chip8.rs
deleted file mode 100644
index 5ff782d..0000000
--- a/src/chip8.rs
+++ /dev/null
@@ -1,277 +0,0 @@
-use std::io::Read;
-use std::io::Write;
-
-const WIDTH: u16 = 64;
-const HEIGHT: u16 = 32;
-const PIXELS: usize = (WIDTH * HEIGHT) as usize;
-
-fn unknown_opcode(opcode: u16) {
-    eprintln!("Unknwown opcode {:#06x}", opcode);
-    std::process::exit(1);
-}
-
-struct RandomGenerator {
-    random: u8,
-}
-
-impl RandomGenerator {
-    fn new() -> Self {
-        Self { random: 92 }
-    }
-}
-
-impl Iterator for RandomGenerator {
-    type Item = u8;
-
-    fn next(&mut self) -> Option<Self::Item> {
-        self.random ^= self.random << 6;
-        self.random ^= self.random >> 4;
-        self.random ^= self.random << 1;
-        Some(self.random)
-    }
-}
-
-pub struct Chip8 {
-    v: [u8; 16],
-    i: u16,
-    pc: u16,
-    stack: [u16; 16],
-    sp: u16,
-    memory: [u8; 4096],
-    screen: [u8; PIXELS],
-    delay_timer: u8,
-    sound_timer: u8,
-    key: [u8; 16],
-    draw: bool,
-    random: RandomGenerator,
-}
-
-impl Chip8 {
-    pub fn new() -> Self {
-        Self {
-            v: [0; 16],
-            i: 0,
-            pc: 0x200,
-            stack: [0; 16],
-            sp: 0,
-            memory: [0; 4096],
-            screen: [0; PIXELS],
-            delay_timer: 0,
-            sound_timer: 0,
-            key: [0; 16],
-            draw: false,
-            random: RandomGenerator::new(),
-        }
-    }
-
-    pub fn load_rom<R: Read>(&mut self, mut reader: R) -> std::io::Result<()> {
-        reader.read(&mut self.memory[0x200..])?;
-        Ok(())
-    }
-
-    pub fn cycle(&mut self) {
-        let pc = self.pc as usize;
-        let opcode = ((self.memory[pc] as u16) << 8) | self.memory[pc + 1] as u16;
-        let x = ((opcode & 0x0F00) >> 8) as usize;
-        let y = ((opcode & 0x00F0) >> 4) as usize;
-        let n = opcode & 0x000F;
-        let nn = (opcode & 0x00FF) as u8;
-        let nnn = opcode & 0x0FFF;
-        self.pc += 2;
-        match opcode & 0xF000 {
-            0x0000 => match opcode & 0x000F {
-                0x0000 => {
-                    eprintln!("CLS");
-                    self.screen = [0; PIXELS];
-                    self.draw = true;
-                }
-                0x000E => {
-                    eprintln!("RET");
-                    self.sp -= 1;
-                    self.pc = self.stack[self.sp as usize];
-                }
-                _ => unknown_opcode(opcode),
-            },
-            0x1000 => {
-                eprintln!("JP {}", nnn);
-                self.pc = nnn;
-            }
-            0x2000 => {
-                eprintln!("CALL {}", nnn);
-                self.stack[self.sp as usize] = self.pc;
-                self.sp += 1;
-                self.pc = nnn;
-            }
-            0x3000 => {
-                eprintln!("SE V{}, {}", x, nn);
-                if self.v[x] == nn {
-                    self.pc += 2;
-                }
-            }
-            0x4000 => {
-                eprintln!("SNE V{}, {}", x, nn);
-                if self.v[x] != nn {
-                    self.pc += 2;
-                }
-            }
-            0x5000 => {
-                eprintln!("SE V{}, V{}", x, y);
-                if self.v[x] == self.v[y] {
-                    self.pc += 2;
-                }
-            }
-            0x6000 => {
-                eprintln!("LD V{}, {}", x, nn);
-                self.v[x] = nn;
-            }
-            0x7000 => {
-                eprintln!("ADD V{}, {}", x, nn);
-                self.v[x] = self.v[x].wrapping_add(nn);
-            }
-            0x8000 => match opcode & 0x000F {
-                0x0000 => {
-                    eprintln!("LD V{}, V{}", x, y);
-                    self.v[x] = self.v[y];
-                }
-                0x0001 => {
-                    eprintln!("OR V{}, V{}", x, y);
-                    self.v[x] |= self.v[y];
-                }
-                0x0002 => {
-                    eprintln!("AND V{}, V{}", x, y);
-                    self.v[x] &= self.v[y];
-                }
-                0x0003 => {
-                    eprintln!("XOR V{}, V{}", x, y);
-                    self.v[x] ^= self.v[y];
-                }
-                0x0004 => {
-                    eprintln!("ADD V{}, V{}", x, y);
-                    let vx = self.v[x] as u16;
-                    let vy = self.v[y] as u16;
-                    let v = vx + vy;
-                    self.v[0xF] = if v > 255 { 1 } else { 0 };
-                    self.v[x] = v as u8;
-                }
-                0x0005 => {
-                    eprintln!("SUB V{}, V{}", x, y);
-                    self.v[0xF] = if self.v[x] > self.v[y] { 1 } else { 0 };
-                    self.v[x] = self.v[x].wrapping_sub(self.v[y]);
-                }
-                0x0006 => {
-                    eprintln!("SHR V{}", x);
-                    self.v[0xF] = if self.v[x] & 1 == 1 { 1 } else { 0 };
-                    self.v[x] /= 2;
-                }
-                0x0007 => {
-                    eprintln!("SUBN V{}, V{}", x, y);
-                    self.v[0xF] = if self.v[y] > self.v[x] { 1 } else { 0 };
-                    self.v[x] = self.v[y].wrapping_sub(self.v[x]);
-                }
-                0x000E => {
-                    eprintln!("SHL V{}", x);
-                    self.v[0xF] = if (self.v[x] >> 7) & 1 == 1 { 1 } else { 0 };
-                    self.v[x] = self.v[x].wrapping_mul(2);
-                }
-                _ => unknown_opcode(opcode),
-            },
-            0x9000 => {
-                eprintln!("SNE V{}, V{}", x, y);
-                if self.v[x] != self.v[y] {
-                    self.pc += 2;
-                }
-            }
-            0xA000 => {
-                eprintln!("LD I, {}", nnn);
-                self.i = nnn;
-            }
-            0xC000 => {
-                eprintln!("RND V{}, {}", x, nn);
-                self.v[x] = self.random.next().unwrap_or(0) & nn;
-            }
-            0xD000 => {
-                eprintln!("DRW V{}, V{}, {}", x, y, n);
-                let vx = self.v[x] as u16;
-                let vy = self.v[y] as u16;
-                self.v[0xF] = 0;
-                for yy in 0..n {
-                    let pixel = self.memory[(self.i + yy) as usize];
-                    for xx in 0..8 {
-                        if (pixel & (0x80 >> xx)) != 0 {
-                            let si = vx + xx + ((vy + yy) * WIDTH);
-                            if self.screen[si as usize] == 1 {
-                                self.v[0xF] = 1;
-                            }
-                            self.screen[si as usize] ^= 1;
-                        }
-                    }
-                }
-                self.draw = true;
-            }
-            0xF000 => match opcode & 0x00FF {
-                0x001E => {
-                    eprintln!("ADD, I, V{}", x);
-                    self.i += self.v[x] as u16;
-                }
-                0x0033 => {
-                    eprintln!("LD, B, V{}", x);
-                    let i = self.i as usize;
-                    self.memory[i] = self.v[x] / 100;
-                    self.memory[i + 1] = (self.v[x] / 10) % 10;
-                    self.memory[i + 2] = (self.v[x] % 100) % 10;
-                }
-                0x0055 => {
-                    eprintln!("LD [I], V{}", x);
-                    let i = self.i as usize;
-                    self.memory[i..=i + x].copy_from_slice(&self.v[..=x]);
-                }
-                0x0065 => {
-                    eprintln!("LD V{}, [I]", x);
-                    let i = self.i as usize;
-                    self.v[..=x].copy_from_slice(&self.memory[i..=i + x]);
-                }
-                _ => unknown_opcode(opcode),
-            },
-            _ => unknown_opcode(opcode),
-        };
-
-        if self.delay_timer > 0 {
-            self.delay_timer -= 1;
-        }
-
-        if self.sound_timer > 0 {
-            if self.sound_timer == 1 {
-                eprintln!("BEEP");
-            }
-            self.sound_timer -= 1;
-        }
-    }
-
-    pub fn display(&mut self) -> std::io::Result<()> {
-        if self.draw {
-            self.draw = false;
-            self.draw()
-        } else {
-            Ok(())
-        }
-    }
-
-    fn draw(&self) -> std::io::Result<()> {
-        let stdout = std::io::stdout();
-        let mut handle = stdout.lock();
-        handle.write_all(b"\x1B[2J\n")?;
-        for y in 0..HEIGHT {
-            for x in 0..WIDTH {
-                let si = x + y * WIDTH;
-                let buf = if self.screen[si as usize] == 0 {
-                    "░".as_bytes()
-                } else {
-                    "█".as_bytes()
-                };
-                handle.write_all(buf)?;
-            }
-            handle.write_all(b"\n")?;
-        }
-        handle.flush()
-    }
-}