moa/emulator/systems/trs80/src/system.rs

73 lines
2.4 KiB
Rust

use moa_core::{System, Error, MemoryBlock, BusPort, wrap_transmutable};
use moa_core::host::Host;
use moa_z80::{Z80, Z80Type};
use crate::peripherals::model1::Model1Peripherals;
pub struct Trs80Options {
pub rom: String,
pub memory: u16,
pub frequency: u32,
}
impl Default for Trs80Options {
fn default() -> Self {
Self {
rom: "binaries/trs80/level2.rom".to_string(),
memory: 0xC000,
frequency: 1_774_000,
}
}
}
pub fn build_trs80<H: Host>(host: &mut H, options: Trs80Options) -> Result<System, Error> {
let mut system = System::default();
let mut rom = MemoryBlock::new(vec![0; 0x3000]);
//rom.load_at(0x0000, "binaries/trs80/level1.rom")?;
//rom.load_at(0x0000, "binaries/trs80/level2.rom")?;
rom.load_at(0x0000, &options.rom)?;
rom.read_only();
system.add_addressable_device(0x0000, wrap_transmutable(rom))?;
let ram = MemoryBlock::new(vec![0; options.memory as usize]);
system.add_addressable_device(0x4000, wrap_transmutable(ram))?;
let model1 = Model1Peripherals::create(host)?;
system.add_addressable_device(0x37E0, wrap_transmutable(model1)).unwrap();
let cpu = Z80::new(Z80Type::Z80, options.frequency, BusPort::new(0, 16, 8, system.bus.clone()));
//cpu.add_breakpoint(0x0);
//cpu.add_breakpoint(0xb55);
//cpu.add_breakpoint(0xb76);
//cpu.add_breakpoint(0x1e5);
//cpu.add_breakpoint(0x340); // "exec", the function that executes the line typed in
//cpu.add_breakpoint(0x357);
//cpu.add_breakpoint(0x401); // LIST command exec
//cpu.add_breakpoint(0x10); // putchar
//cpu.add_breakpoint(0x970);
//cpu.add_breakpoint(0x9f9);
//cpu.add_breakpoint(0xa58); // return from printing the line number
//cpu.add_breakpoint(0xc59); // the function called first thing when printing a decimal number
//cpu.add_breakpoint(0xe00); // normalize the float??
//cpu.add_breakpoint(0x970); // just after the decimal number print function is called, but after the call at the start is complete
//cpu.add_breakpoint(0xa6c);
//cpu.add_breakpoint(0xe00);
//cpu.add_breakpoint(0xc77);
//cpu.add_breakpoint(0xc83);
//cpu.add_breakpoint(0x96d);
//cpu.add_breakpoint(0x970);
//cpu.add_breakpoint(0x9e2);
//cpu.add_breakpoint(0x9f9);
system.add_interruptable_device("cpu", wrap_transmutable(cpu))?;
Ok(system)
}