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-rw-r--r--src/luma.rs11
-rw-r--r--src/luma/application.rs25
-rw-r--r--src/luma/application/bootloader.rs (renamed from src/luma/emulator/bootloader.rs)4
-rw-r--r--src/luma/application/decode.rs (renamed from src/luma/emulator/opcode.rs)6
-rw-r--r--src/luma/application/drop.rs6
-rw-r--r--src/luma/application/image.rs (renamed from src/luma/emulator/image.rs)6
-rw-r--r--src/luma/application/initialise.rs45
-rw-r--r--src/luma/application/load.rs26
-rw-r--r--src/luma/application/new.rs12
-rw-r--r--src/luma/application/read.rs (renamed from src/luma/emulator/read.rs)4
-rw-r--r--src/luma/application/run.rs46
-rw-r--r--src/luma/application/trap.rs (renamed from src/luma/emulator/trap.rs)6
-rw-r--r--src/luma/emulator.rs22
-rw-r--r--src/luma/emulator/drop.rs13
-rw-r--r--src/luma/emulator/new.rs39
-rw-r--r--src/luma/emulator/run.rs29
-rw-r--r--src/main.rs2
17 files changed, 146 insertions, 156 deletions
diff --git a/src/luma.rs b/src/luma.rs
index e4a9395..af45480 100644
--- a/src/luma.rs
+++ b/src/luma.rs
@@ -1,9 +1,16 @@
// Copyright 2021-2023 Gabriel Jensen.
pub mod application;
-pub mod emulator;
-pub const VERSION: u32 = 0x20;
+pub struct VersionType<T> {
+ major: T,
+ minor: T,
+}
+
+pub const VERSION: VersionType::<u32> = VersionType::<u32> {
+ major: 0x0,
+ minor: 0x21,
+};
pub const MEMORY_SIZE: usize = 0x0E010000;
diff --git a/src/luma/application.rs b/src/luma/application.rs
index 4f095c2..63f7d92 100644
--- a/src/luma/application.rs
+++ b/src/luma/application.rs
@@ -1,17 +1,38 @@
// Copyright 2021-2023 Gabriel Jensen.
+extern crate sdl2;
+
+use sdl2::{Sdl, VideoSubsystem};
+use sdl2::video::Window;
use std::sync::atomic::AtomicBool;
+pub mod bootloader;
+pub mod decode;
pub mod drop;
pub mod end;
+pub mod image;
pub mod initialise;
-pub mod new;
+pub mod load;
pub mod parse_parameters;
+pub mod read;
pub mod run;
+pub mod trap;
+
+pub enum TrapKind {
+ BadAlignment,
+ InvalidOpcode,
+ OutOfBounds,
+}
pub struct Application {
bootloader: String,
- image: String,
+ image: String,
+ sdl: Sdl,
+ sdl_video: VideoSubsystem,
+ window: Window,
+ memory: *mut u8,
+ registers: [u32; 0x10],
+ psr: u32,
}
pub static mut GOT_SIGNAL: AtomicBool = AtomicBool::new(false);
diff --git a/src/luma/emulator/bootloader.rs b/src/luma/application/bootloader.rs
index 9aca8eb..2a69447 100644
--- a/src/luma/emulator/bootloader.rs
+++ b/src/luma/application/bootloader.rs
@@ -1,11 +1,11 @@
// Copyright 2021-2023 Gabriel Jensen.
+use crate::luma::application::Application;
use crate::luma::BOOTLOADER_SIZE;
-use crate::luma::emulator::Emulator;
use std::slice;
-impl Emulator {
+impl Application {
pub fn bootloader<'a>(&mut self) -> &'a mut [u8] {
return unsafe { slice::from_raw_parts_mut(self.memory.offset(0x00000000), BOOTLOADER_SIZE) };
}
diff --git a/src/luma/emulator/opcode.rs b/src/luma/application/decode.rs
index b074aa7..feca794 100644
--- a/src/luma/emulator/opcode.rs
+++ b/src/luma/application/decode.rs
@@ -1,9 +1,9 @@
// Copyright 2021-2023 Gabriel Jensen.
-use crate::luma::emulator::{Emulator, TrapKind};
+use crate::luma::application::{Application, TrapKind};
-impl Emulator {
- pub fn opcode(&mut self, opcode: u32) {
+impl Application {
+ pub fn decode(&mut self, opcode: u32) {
let condition = match opcode & 0b11110000000000000000000000000 {
0b00000000000000000000000000000 => self.psr & 0b01000000000000000000000000000000 != 0x00,
0b00010000000000000000000000000 => self.psr & 0b01000000000000000000000000000000 == 0x00,
diff --git a/src/luma/application/drop.rs b/src/luma/application/drop.rs
index 8fb7cf1..711e994 100644
--- a/src/luma/application/drop.rs
+++ b/src/luma/application/drop.rs
@@ -1,9 +1,15 @@
// Copyright 2021-2023 Gabriel Jensen.
use crate::luma::application::Application;
+use crate::luma::MEMORY_SIZE;
+
+use std::alloc::{dealloc, Layout};
+use std::mem::size_of;
impl Drop for Application {
fn drop(&mut self) {
+ unsafe { dealloc(self.memory, Layout::new::<[u32; MEMORY_SIZE / size_of::<u32>()]>()) };
+
self.end(0x0,None);
}
}
diff --git a/src/luma/emulator/image.rs b/src/luma/application/image.rs
index d62dc9a..9f2aeae 100644
--- a/src/luma/emulator/image.rs
+++ b/src/luma/application/image.rs
@@ -1,12 +1,12 @@
// Copyright 2021-2023 Gabriel Jensen.
+use crate::luma::application::Application;
use crate::luma::IMAGE_SIZE;
-use crate::luma::emulator::Emulator;
use std::slice;
-impl Emulator {
+impl Application {
pub fn image<'a>(&mut self) -> &'a mut [u8] {
return unsafe { slice::from_raw_parts_mut(self.memory.offset(0x08000000), IMAGE_SIZE) };
}
-}
+} \ No newline at end of file
diff --git a/src/luma/application/initialise.rs b/src/luma/application/initialise.rs
index 9b6848b..e9bf0ef 100644
--- a/src/luma/application/initialise.rs
+++ b/src/luma/application/initialise.rs
@@ -1,11 +1,14 @@
// Copyright 2021-2023 Gabriel Jensen.
use crate::luma::application::{Application, GOT_SIGNAL};
+use crate::luma::MEMORY_SIZE;
extern crate libc;
+extern crate sdl2;
use libc::{c_int, sighandler_t, SIGINT, signal, SIGTERM};
-use std::mem::transmute;
+use std::alloc::{alloc_zeroed, Layout};
+use std::mem::{size_of, transmute};
use std::sync::atomic::Ordering;
fn signal_handler(sig: c_int) {
@@ -17,12 +20,50 @@ fn signal_handler(sig: c_int) {
}
impl Application {
- pub fn initialise(&mut self) {
+ pub fn initialise() -> Application {
eprintln!("initialising");
unsafe {
signal(SIGINT, transmute::<fn(c_int), sighandler_t>(signal_handler));
signal(SIGTERM, transmute::<fn(c_int), sighandler_t>(signal_handler));
}
+
+ let sdl = sdl2::init().expect("unable to initialise sdl2");
+ let sdl_video = sdl.video().expect("unable to initialise sdl2");
+
+ let window = sdl_video.window("luma", 0xF0, 0xA0).position_centered().build().unwrap();
+
+ let memory = unsafe { alloc_zeroed(Layout::new::<[u32; MEMORY_SIZE / size_of::<u32>()]>()) };
+ if memory.is_null() { panic!("unable to allocate memory buffer") }
+
+ eprintln!("allocated memory buffer at 0x{:0X}", memory as usize);
+
+ return Application {
+ bootloader: "bootloader.bin".to_string(),
+ image: "image.agb".to_string(),
+ sdl: sdl,
+ sdl_video: sdl_video,
+ window: window,
+ memory: memory,
+ registers: [
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x08000008,
+ ],
+ psr: 0b00000000000000000000000000001111,
+ };
}
}
diff --git a/src/luma/application/load.rs b/src/luma/application/load.rs
new file mode 100644
index 0000000..58491d7
--- /dev/null
+++ b/src/luma/application/load.rs
@@ -0,0 +1,26 @@
+// Copyright 2021-2023 Gabriel Jensen.
+
+use crate::luma::application::Application;
+
+use std::fs::File;
+use std::io::Read;
+
+impl Application {
+ pub fn load(&mut self) {
+ eprintln!("loading booatloader \"{}\"", self.bootloader);
+
+ // Open bootloader:
+ let mut bootloader = File::open(self.bootloader.clone()).expect("unable to open bootloader");
+
+ // Read bootloader:
+ bootloader.read(self.bootloader()).expect("unable to read bootloader");
+
+ eprintln!("loading image \"{}\"", self.image);
+
+ // Open image:
+ let mut image = File::open(self.image.clone()).expect("unable to open image");
+
+ // Read image:
+ image.read(self.image()).expect("unable to read image");
+ }
+}
diff --git a/src/luma/application/new.rs b/src/luma/application/new.rs
deleted file mode 100644
index 41d25a7..0000000
--- a/src/luma/application/new.rs
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright 2021-2023 Gabriel Jensen.
-
-use crate::luma::application::Application;
-
-impl Application {
- pub fn new() -> Application {
- return Application {
- bootloader: "bootloader.bin".to_string(),
- image: "image.agb".to_string(),
- };
- }
-}
diff --git a/src/luma/emulator/read.rs b/src/luma/application/read.rs
index f374e4d..40604a9 100644
--- a/src/luma/emulator/read.rs
+++ b/src/luma/application/read.rs
@@ -1,9 +1,9 @@
// Copyright 2021-2023 Gabriel Jensen.
+use crate::luma::application::{Application, TrapKind};
use crate::luma::MEMORY_SIZE;
-use crate::luma::emulator::{Emulator, TrapKind};
-impl Emulator {
+impl Application {
#[allow(dead_code)]
pub fn read_byte(&mut self, address: u32) -> u8 {
if address >= MEMORY_SIZE as u32 { self.trap(TrapKind::OutOfBounds, Some(address), None, None) };
diff --git a/src/luma/application/run.rs b/src/luma/application/run.rs
index 23419be..a0a3f83 100644
--- a/src/luma/application/run.rs
+++ b/src/luma/application/run.rs
@@ -1,38 +1,42 @@
// Copyright 2021-2023 Gabriel Jensen.
+use crate::luma::application::{Application, GOT_SIGNAL};
use crate::luma::VERSION;
-use crate::luma::application::Application;
-use crate::luma::emulator::Emulator;
-use std::fs::File;
-use std::io::Read;
+use sdl2::event::Event;
+use std::sync::atomic::Ordering;
impl Application {
pub fn run(&mut self) {
- eprintln!("luma {VERSION}");
+ eprintln!("luma {}.{}", VERSION.major, VERSION.minor);
self.parse_parameters();
+ self.load();
- self.initialise();
+ let mut event_pump = self.sdl.event_pump().expect("unable to get event pump");
- let mut emulator = Emulator::new();
+ eprintln!("starting emulation at 0x{:08X}",self.registers[0xF] - 0x8);
- eprintln!("loading booatloader \"{}\"",self.bootloader);
+ 'main_loop: loop {
+ // Check if we have recieved a signal:
+ if unsafe { GOT_SIGNAL.load(Ordering::Relaxed) } {
+ eprintln!("got interrupt");
+ break;
+ }
- // Open bootloader:
- let mut bootloader = File::open(self.bootloader.clone()).expect("unable to open bootloader");
+ for event in event_pump.poll_iter() {
+ match event {
+ Event::Quit {..} => break 'main_loop,
+ _ => {},
+ }
+ }
- // Read bootloader:
- bootloader.read(emulator.bootloader()).expect("unable to read bootloader");
+ // Decode opcode:
+ let opcode = self.read_word(self.registers[0xF] - 0x8);
+ self.decode(opcode);
- eprintln!("loading image \"{}\"",self.image);
-
- // Open image:
- let mut image = File::open(self.image.clone()).expect("unable to open image");
-
- // Read image:
- image.read(emulator.image()).expect("unable to read image");
-
- emulator.run();
+ // Continue:
+ self.registers[0xF] += 0x4;
+ }
}
}
diff --git a/src/luma/emulator/trap.rs b/src/luma/application/trap.rs
index fa833e5..7f484ba 100644
--- a/src/luma/emulator/trap.rs
+++ b/src/luma/application/trap.rs
@@ -1,9 +1,9 @@
// Copyright 2021-2023 Gabriel Jensen.
+use crate::luma::application::{Application, TrapKind};
use crate::luma::MEMORY_SIZE;
-use crate::luma::emulator::{Emulator, TrapKind};
-impl Emulator {
+impl Application {
pub fn trap(&mut self, kind: TrapKind, address: Option<u32>, opcode: Option<u32>, alignment: Option<u32>) {
let message = match kind {
TrapKind::BadAlignment => format!("bad alignment of address 0x{:08X} (should be {}-byte aligned)", address.unwrap(), alignment.unwrap()),
@@ -29,7 +29,7 @@ impl Emulator {
eprintln!("\tsp: {:08X}", self.registers[0xD]);
eprintln!("\tlr: {:08X}", self.registers[0xE]);
eprintln!("\tpc: {:08X}", self.registers[0xF]);
- eprintln!("\topsr: {:032b}", self.psr);
+ eprintln!("\tcpsr: {:032b}", self.psr);
panic!("{message}");
}
diff --git a/src/luma/emulator.rs b/src/luma/emulator.rs
deleted file mode 100644
index 2a108eb..0000000
--- a/src/luma/emulator.rs
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2021-2023 Gabriel Jensen.
-
-pub mod bootloader;
-pub mod drop;
-pub mod read;
-pub mod image;
-pub mod new;
-pub mod opcode;
-pub mod run;
-pub mod trap;
-
-pub enum TrapKind {
- BadAlignment,
- InvalidOpcode,
- OutOfBounds,
-}
-
-pub struct Emulator {
- memory: *mut u8,
- registers: [u32; 0x10],
- psr: u32,
-}
diff --git a/src/luma/emulator/drop.rs b/src/luma/emulator/drop.rs
deleted file mode 100644
index 6f87867..0000000
--- a/src/luma/emulator/drop.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright 2021-2023 Gabriel Jensen.
-
-use crate::luma::MEMORY_SIZE;
-use crate::luma::emulator::Emulator;
-
-use std::alloc::{dealloc, Layout};
-use std::mem::size_of;
-
-impl Drop for Emulator {
- fn drop(&mut self) {
- unsafe { dealloc(self.memory, Layout::new::<[u32; MEMORY_SIZE / size_of::<u32>()]>()) };
- }
-}
diff --git a/src/luma/emulator/new.rs b/src/luma/emulator/new.rs
deleted file mode 100644
index e3ab7ef..0000000
--- a/src/luma/emulator/new.rs
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright 2021-2023 Gabriel Jensen.
-
-use crate::luma::MEMORY_SIZE;
-use crate::luma::emulator::Emulator;
-
-use std::alloc::{alloc_zeroed, Layout};
-use std::mem::size_of;
-
-impl Emulator {
- pub fn new() -> Emulator {
- let memory = unsafe { alloc_zeroed(Layout::new::<[u32; MEMORY_SIZE / size_of::<u32>()]>()) };
- if memory.is_null() { panic!("unable to allocate memory buffer") }
-
- eprintln!("allocated memory buffer at 0x{:0X}", memory as usize);
-
- return Emulator {
- memory: memory,
- registers: [
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x08000008,
- ],
- psr: 0b00000000000000000000000000001111,
- };
- }
-}
diff --git a/src/luma/emulator/run.rs b/src/luma/emulator/run.rs
deleted file mode 100644
index 001bbe4..0000000
--- a/src/luma/emulator/run.rs
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright 2021-2023 Gabriel Jensen.
-
-use crate::luma::application::GOT_SIGNAL;
-use crate::luma::emulator::Emulator;
-
-use std::sync::atomic::Ordering;
-
-impl Emulator {
- pub fn run(&mut self) {
- eprintln!("starting emulation");
-
- eprintln!("starting at 0x{:08X}",self.registers[0xF] - 0x8);
-
- loop {
- // Check if we have recieved a signal:
- if unsafe { GOT_SIGNAL.load(Ordering::Relaxed) } {
- eprintln!("got interrupt");
- break;
- }
-
- // Decode opcode:
- let opcode = self.read_word(self.registers[0xF] - 0x8);
- self.opcode(opcode);
-
- // Continue:
- self.registers[0xF] += 0x4;
- }
- }
-}
diff --git a/src/main.rs b/src/main.rs
index 82d3609..92e5dcc 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,6 +5,6 @@ mod luma;
use crate::luma::application::Application;
fn main() {
- let mut application = Application::new();
+ let mut application = Application::initialise();
application.run();
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 09:40:26 +0100