diff --git a/.cargo/config b/.cargo/config new file mode 100644 index 0000000..8652551 --- /dev/null +++ b/.cargo/config @@ -0,0 +1,4 @@ +[target.wasm32-unknown-emscripten] +rustflags = [ + "-C", "link-args=--embed-file roms/mario.nes", +] diff --git a/.gitignore b/.gitignore index 19af2cc..7cbe62e 100644 --- a/.gitignore +++ b/.gitignore @@ -1,3 +1,6 @@ main target -roms \ No newline at end of file +roms +*.rlib +*.log +*.state diff --git a/Cargo.lock b/Cargo.lock index 1138d0d..578b805 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1,3 +1,23 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +[[package]] +name = "arrayvec" +version = "0.4.10" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)", +] + +[[package]] +name = "atty" +version = "0.2.11" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "libc 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nes_emulator; + +use nes_emulator::nes::read_ines; +use nes_emulator::nes::load_ines; +use nes_emulator::joystick::Joystick; + +use criterion::Criterion; +use std::time::Duration; + +fn criterion_benchmark(c: &mut Criterion) { + let joystick1 = Box::new(Joystick::new_software()); + let joystick2 = Box::new(Joystick::new_software()); + let ines = read_ines("roms/mario.nes".to_string()).unwrap(); + let mut nes = load_ines(ines, joystick1, joystick2); + c.bench_function( + "1 frame", + move |b| + b.iter(|| { + for _ in 0..1 { + nes.run_frame(); + } + })); +} + +criterion_group!(benches, criterion_benchmark); +criterion_main!(benches); diff --git a/src/c6502.rs b/src/c6502.rs index 48053a5..091b6e0 100644 --- a/src/c6502.rs +++ b/src/c6502.rs @@ -525,7 +525,6 @@ impl Instruction { } impl Clocked for C6502 { - #[allow(mutable_transmutes)] fn clock(&mut self) { self.counter += 1; if self.clocks_to_pause > 0 { @@ -538,8 +537,10 @@ impl Clocked for C6502 { { self.print_trace_line(num_bytes, &i); } self.pc = self.pc.wrapping_add(num_bytes); self.execute_instruction(i); - let debugger:&mut C6502Debugger = unsafe { transmute(&self.debugger) }; - debugger.on_step(&self, num_bytes, &i); + { + let debugger:*mut C6502Debugger = &mut self.debugger; + unsafe {(*debugger).on_step(&self, num_bytes, &i)}; + } self.clocks_to_pause += (i.num_clocks as u16)-1; // TODO: Implement "oops cycle" for indexing modes that cross a page boundary. } diff --git a/src/headless.rs b/src/headless.rs index a0b7a99..9f40a88 100644 --- a/src/headless.rs +++ b/src/headless.rs @@ -7,9 +7,8 @@ mod nes; mod joystick; mod serialization; +use core::ptr::null_mut; use std::io::Read; -use std::io::stdout; -use std::io::stdin; use std::io::Write; use std::fs::File; use std::fmt::Debug; @@ -36,8 +35,8 @@ fn main() { } struct Headless { - joystick1: Box, - joystick2: Box, + joystick1: *mut Joystick, + joystick2: *mut Joystick, nes: Option>, in_fh: Box, out_fh: Box, @@ -47,12 +46,10 @@ struct Headless { impl Headless { pub fn new(in_fh: Box, out_fh: Box) -> Headless { - let joystick1 = Box::new(Joystick::new_software()); - let joystick2 = Box::new(Joystick::new_software()); let mut nes = None; Headless { - joystick1: joystick1, - joystick2: joystick2, + joystick1: null_mut(), + joystick2: null_mut(), nes: nes, in_fh: in_fh, out_fh: out_fh, @@ -87,11 +84,13 @@ impl Headless { fn command_load_rom(&mut self) { let mut record_tas = self.read_byte(); let filename = self.read_length_string(); - let j1 = &mut *self.joystick1 as *mut Joystick; - let j2 = &mut *self.joystick2 as *mut Joystick; + let mut joystick1 = Box::new(Joystick::new_software()); + let mut joystick2 = Box::new(Joystick::new_software()); + self.joystick1 = &mut *joystick1; + self.joystick2 = &mut *joystick2; match read_ines(filename.clone()) { Ok(ines) => { - let nes = load_ines(ines, Box::new(j1), Box::new(j2)); + let nes = load_ines(ines, joystick1, joystick2); self.nes = Some(Box::new(nes)); } x@Err{..} => panic!("Error loading rom file {:?} - {:?}", filename, x), @@ -110,9 +109,9 @@ impl Headless { self.out_fh.write(&bytes); } fn command_set_inputs(&mut self) { - let button_mask = self.read_byte(); self.read_byte(); - self.joystick1.set_buttons(button_mask); + let button_mask = self.read_byte(); + unsafe { (*self.joystick1).set_buttons(button_mask) }; } fn command_save_state(&mut self) { let filename = self.read_length_string(); diff --git a/src/joystick.rs b/src/joystick.rs index 2a9e31f..71232c0 100644 --- a/src/joystick.rs +++ b/src/joystick.rs @@ -14,7 +14,7 @@ pub struct Joystick { sdl_controller: Option, sdl_id: u32, is_software: bool, - button_mask: u8, + pub button_mask: u8, strobe_active: bool, } @@ -120,7 +120,6 @@ impl AddressSpace for Joystick { ); */ let byte = self.button_mask & 1; - // eprintln!("DEBUG - CONTROLLER {} {}", self.button_mask, byte); mut_self.button_mask >>= 1; return byte; } diff --git a/src/lib.rs b/src/lib.rs new file mode 100644 index 0000000..f2419c6 --- /dev/null +++ b/src/lib.rs @@ -0,0 +1,10 @@ +pub mod common; +pub mod c6502; +pub mod ppu; +pub mod apu; +pub mod mapper; +pub mod nes; +pub mod joystick; +pub mod serialization; + +extern crate sdl2; diff --git a/src/serialization.rs b/src/serialization.rs index c4362af..f815508 100644 --- a/src/serialization.rs +++ b/src/serialization.rs @@ -1,3 +1,5 @@ +#[allow(unused_must_use)] // TODO + use std::fs::File; use std::io::Read; use std::io::Write;