use bedrock_core::*;
mod math;
mod clock;
mod input;
mod screen;
mod scratch;
mod stream;
mod file;
pub use math::*;
pub use clock::*;
pub use input::*;
pub use screen::*;
pub use scratch::*;
pub use stream::*;
pub use file::*;
pub struct StandardDevices {
pub math: MathDevice,
pub clock: ClockDevice,
pub input: InputDevice,
pub screen: ScreenDevice,
pub scratch: ScratchDevice,
pub stream: StreamDevice,
pub file: FileDevice,
pub wake_mask: u16,
pub wake_device: u8,
}
impl StandardDevices {
pub fn new() -> Self {
let mut screen = ScreenDevice::new();
screen.resize(ScreenDimensions::new(256, 192));
Self {
math: MathDevice::new(),
clock: ClockDevice::new(),
input: InputDevice::new(),
screen,
scratch: ScratchDevice::new(),
stream: StreamDevice::new(),
file: FileDevice::new(),
wake_mask: 0x0000,
wake_device: 0x00,
}
}
pub fn can_wake(&mut self) -> bool {
macro_rules! test_wake {
($flag:expr, $mask:expr, $index:expr) => {
if $flag && self.wake_mask & $mask != 0 {
$flag = false; self.wake_device = $index; return true;
}
};
}
self.clock.update_timer_1();
self.clock.update_timer_2();
self.clock.update_timer_3();
self.clock.update_timer_4();
test_wake!(self.clock.wake_flag, 0x1000, 0x03);
test_wake!(self.input.wake_flag, 0x0800, 0x04);
test_wake!(self.screen.wake_flag, 0x0400, 0x05);
test_wake!(self.stream.wake_flag, 0x0040, 0x09);
return false;
}
}
impl DeviceBus for StandardDevices {
fn read_u8(&mut self, port: u8) -> u8 {
macro_rules! read_hh { ($v:expr) => { ($v>>24) as u8 }; }
macro_rules! read_hl { ($v:expr) => { ($v>>16) as u8 }; }
macro_rules! read_lh { ($v:expr) => { ($v>>8) as u8 }; }
macro_rules! read_ll { ($v:expr) => { $v as u8 }; }
macro_rules! read_h { ($v:expr) => { ($v>>8) as u8 }; }
macro_rules! read_l { ($v:expr) => { $v as u8 }; }
macro_rules! read_b { ($b:expr) => { if $b { 0xff } else { 0x00 } }; }
macro_rules! no_read { () => { 0x00 }; }
match port {
// System
0x00 => no_read!(),
0x01 => no_read!(),
0x02 => self.wake_device,
0x03 => no_read!(),
0x04 => no_read!(),
0x05 => no_read!(),
0x06 => no_read!(),
0x07 => no_read!(),
0x08 => 0xFF,
0x09 => 0xFF,
0x0A => 0xFF,
0x0B => 0xFF,
0x0C => 0xBC,
0x0D => 0x80,
0x0E => 0xBC,
0x0F => 0x80,
// Math
0x20 => no_read!(),
0x21 => no_read!(),
0x22 => no_read!(),
0x23 => no_read!(),
0x24 => no_read!(),
0x25 => no_read!(),
0x26 => no_read!(),
0x27 => no_read!(),
0x28 => { self.math.multiply(); read_h!(self.math.product_high) },
0x29 => { self.math.multiply(); read_l!(self.math.product_high) },
0x2A => { self.math.multiply(); read_h!(self.math.product_low) },
0x2B => { self.math.multiply(); read_l!(self.math.product_low) },
0x2C => { self.math.divide(); read_h!(self.math.quotient) },
0x2D => { self.math.divide(); read_l!(self.math.quotient) },
0x2E => { self.math.modulo(); read_h!(self.math.remainder) },
0x2F => { self.math.modulo(); read_l!(self.math.remainder) },
// Clock
0x30 => self.clock.year(),
0x31 => self.clock.month(),
0x32 => self.clock.day(),
0x33 => self.clock.hour(),
0x34 => self.clock.minute(),
0x35 => self.clock.second(),
0x36 => { self.clock.update_cumulative_seconds(); read_h!(self.clock.cumulative_seconds) },
0x37 => read_l!(self.clock.cumulative_seconds),
0x38 => { self.clock.update_timer_1(); read_h!(self.clock.timer_1) }
0x39 => read_l!(self.clock.timer_1),
0x3A => { self.clock.update_timer_2(); read_h!(self.clock.timer_2) }
0x3B => read_l!(self.clock.timer_2),
0x3C => { self.clock.update_timer_3(); read_h!(self.clock.timer_3) }
0x3D => read_l!(self.clock.timer_3),
0x3E => { self.clock.update_timer_4(); read_h!(self.clock.timer_4) }
0x3F => read_l!(self.clock.timer_4),
// Input
0x40 => read_h!(self.input.mouse_position.x),
0x41 => read_l!(self.input.mouse_position.x),
0x42 => read_h!(self.input.mouse_position.y),
0x43 => read_l!(self.input.mouse_position.y),
0x44 => read_h!(self.input.horizontal_scroll_value),
0x45 => read_l!(self.input.horizontal_scroll_value),
0x46 => read_h!(self.input.vertical_scroll_value),
0x47 => read_l!(self.input.vertical_scroll_value),
0x48 => self.input.character_queue.pop_front().unwrap_or(0),
0x49 => self.input.modifier_state,
0x4A => self.input.mouse_button_state,
0x4B => self.input.navigation_state,
// Screen
0x50 => read_h!(self.screen.dimensions.width),
0x51 => read_l!(self.screen.dimensions.width),
0x52 => read_h!(self.screen.dimensions.height),
0x53 => read_l!(self.screen.dimensions.height),
0x54 => read_h!(self.screen.cursor.x),
0x55 => read_l!(self.screen.cursor.x),
0x56 => read_h!(self.screen.cursor.y),
0x57 => read_l!(self.screen.cursor.y),
0x58 => no_read!(),
0x59 => no_read!(),
0x5A => no_read!(),
0x5B => no_read!(),
0x5C => no_read!(),
0x5D => no_read!(),
0x5E => no_read!(),
0x5F => no_read!(),
// Scratch
0x80 => no_read!(),
0x81 => no_read!(),
0x82 => no_read!(),
0x83 => no_read!(),
0x84 => no_read!(),
0x85 => no_read!(),
0x86 => no_read!(),
0x87 => no_read!(),
0x88 => self.scratch.read_head_1(),
0x89 => self.scratch.read_head_1(),
0x8A => self.scratch.read_head_2(),
0x8B => self.scratch.read_head_2(),
0x8C => read_hh!(self.scratch.max_capacity),
0x8D => read_hl!(self.scratch.max_capacity),
0x8E => read_lh!(self.scratch.max_capacity),
0x8F => read_ll!(self.scratch.max_capacity),
// Stream
// File
0xA0 => read_b!(self.file.file.is_some()),
0xA1 => read_b!(self.file.operation_state),
0xA2 => no_read!(),
0xA3 => no_read!(),
0xA4 => read_hh!(self.file.pointer),
0xA5 => read_hl!(self.file.pointer),
0xA6 => read_lh!(self.file.pointer),
0xA7 => read_ll!(self.file.pointer),
0xA8 => self.file.read(),
0xA9 => self.file.read(),
0xAA => no_read!(),
0xAB => no_read!(),
0xAC => read_hh!(self.file.file_size),
0xAD => read_hl!(self.file.file_size),
0xAE => read_lh!(self.file.file_size),
0xAF => read_ll!(self.file.file_size),
_ => unimplemented!("Reading from device port 0x{port:02x}"),
}
}
fn write_u8(&mut self, val: u8, port: u8) -> Option<Signal> {
macro_rules! write_hh { ($v:expr) => { $v = $v & 0x00ffffff | ((val as u32) << 24) }; }
macro_rules! write_hl { ($v:expr) => { $v = $v & 0xff00ffff | ((val as u32) << 16) }; }
macro_rules! write_lh { ($v:expr) => { $v = $v & 0x00ff | ((val as u32) << 8) }; }
macro_rules! write_ll { ($v:expr) => { $v = $v & 0xff00 | (val as u32) }; }
macro_rules! write_h { ($v:expr) => { $v = $v & 0x00ff | ((val as u16) << 8) }; }
macro_rules! write_l { ($v:expr) => { $v = $v & 0xff00 | (val as u16) }; }
macro_rules! no_write { () => { () }; }
match port {
// System
0x00 => write_h!(self.wake_mask),
0x01 => { write_l!(self.wake_mask); return Some(Signal::Pause) },
0x02 => no_write!(),
0x03 => no_write!(),
0x04 => no_write!(),
0x05 => no_write!(),
0x06 => no_write!(),
0x07 => no_write!(),
0x08 => no_write!(),
0x09 => no_write!(),
0x0A => no_write!(),
0x0B => no_write!(),
0x0C => no_write!(),
0x0D => no_write!(),
0x0E => no_write!(),
0x0F => no_write!(),
// Math
0x20 => write_h!(self.math.operand_1),
0x21 => write_l!(self.math.operand_1),
0x22 => write_h!(self.math.operand_2),
0x23 => write_l!(self.math.operand_2),
0x24 => no_write!(),
0x25 => no_write!(),
0x26 => no_write!(),
0x27 => no_write!(),
0x28 => no_write!(),
0x29 => no_write!(),
0x2A => no_write!(),
0x2B => no_write!(),
0x2C => no_write!(),
0x2D => no_write!(),
0x2E => no_write!(),
0x2F => no_write!(),
// Clock
0x38 => write_h!(self.clock.timer_1),
0x39 => { write_l!(self.clock.timer_1); self.clock.set_timer_1() },
0x3A => write_h!(self.clock.timer_2),
0x3B => { write_l!(self.clock.timer_2); self.clock.set_timer_2() },
0x3C => write_h!(self.clock.timer_3),
0x3D => { write_l!(self.clock.timer_3); self.clock.set_timer_3() },
0x3E => write_h!(self.clock.timer_4),
0x3F => { write_l!(self.clock.timer_4); self.clock.set_timer_4() },
// Input
0x40 => no_write!(),
0x41 => no_write!(),
0x42 => no_write!(),
0x43 => no_write!(),
0x44 => no_write!(),
0x45 => no_write!(),
0x46 => no_write!(),
0x47 => no_write!(),
0x48 => self.input.character_queue.clear(),
0x49 => no_write!(),
0x4A => no_write!(),
0x4B => no_write!(),
0x4C => no_write!(),
0x4D => no_write!(),
0x4E => no_write!(),
0x4F => no_write!(),
// Screen
0x50 => write_h!(self.screen.dimensions.width),
0x51 => { write_l!(self.screen.dimensions.width); self.screen.set_size(self.screen.dimensions) },
0x52 => write_h!(self.screen.dimensions.height),
0x53 => { write_l!(self.screen.dimensions.height); self.screen.set_size(self.screen.dimensions) },
0x54 => write_h!(self.screen.cursor.x),
0x55 => write_l!(self.screen.cursor.x),
0x56 => write_h!(self.screen.cursor.y),
0x57 => write_l!(self.screen.cursor.y),
0x58 => self.screen.draw(val),
0x59 => self.screen.shunt(val),
0x5A => self.screen.sprite_data.push(val),
0x5B => self.screen.sprite_data.push(val),
0x5C => self.screen.set_palette_high(val),
0x5D => self.screen.set_palette_low(val),
0x5E => self.screen.set_sprite_colour_high(val),
0x5F => self.screen.set_sprite_colour_low(val),
// Scratch
0x80 => write_hh!(self.scratch.pointer_1),
0x81 => write_hl!(self.scratch.pointer_1),
0x82 => write_lh!(self.scratch.pointer_1),
0x83 => write_ll!(self.scratch.pointer_1),
0x84 => write_hh!(self.scratch.pointer_2),
0x85 => write_hl!(self.scratch.pointer_2),
0x86 => write_lh!(self.scratch.pointer_2),
0x87 => write_ll!(self.scratch.pointer_2),
0x88 => self.scratch.write_head_1(val),
0x89 => self.scratch.write_head_1(val),
0x8A => self.scratch.write_head_2(val),
0x8B => self.scratch.write_head_2(val),
0x8C => no_write!(),
0x8D => no_write!(),
0x8E => no_write!(),
0x8F => no_write!(),
// File
0xA0 => self.file.push_name_byte(val),
0xA1 => no_write!(),
0xA2 => no_write!(),
0xA3 => no_write!(),
0xA4 => write_hh!(self.file.pointer),
0xA5 => write_hl!(self.file.pointer),
0xA6 => write_lh!(self.file.pointer),
0xA7 => write_ll!(self.file.pointer),
0xA8 => no_write!(),
0xA9 => no_write!(),
0xAA => no_write!(),
0xAB => no_write!(),
0xAC => write_hh!(self.file.file_size),
0xAD => write_hl!(self.file.file_size),
0xAE => write_lh!(self.file.file_size),
0xAF => { write_ll!(self.file.file_size); self.file.set_file_size() },
// Bytestreams
0x96 => self.stream.write_stdout(val),
0x97 => self.stream.write_stdout(val),
_ => unimplemented!("Writing to device port 0x{port:02x}"),
};
return None;
}
}
