71 lines
1.9 KiB
Rust
71 lines
1.9 KiB
Rust
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use moa_core::{System, Error, Address, Debuggable};
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use crate::state::Z80;
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use crate::decode::Z80Decoder;
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#[derive(Default)]
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pub struct Z80Debugger {
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pub enabled: bool,
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pub breakpoints: Vec<u16>,
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}
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impl Debuggable for Z80 {
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fn debugging_enabled(&mut self) -> bool {
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self.debugger.enabled
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}
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fn set_debugging(&mut self, enable: bool) {
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self.debugger.enabled = enable;
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}
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fn add_breakpoint(&mut self, addr: Address) {
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self.debugger.breakpoints.push(addr as u16);
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self.debugger.enabled = true;
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}
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fn remove_breakpoint(&mut self, addr: Address) {
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if let Some(index) = self.debugger.breakpoints.iter().position(|a| *a == addr as u16) {
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self.debugger.breakpoints.remove(index);
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self.debugger.enabled = !self.debugger.breakpoints.is_empty();
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}
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}
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fn print_current_step(&mut self, _system: &System) -> Result<(), Error> {
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self.decoder.decode_at(&mut self.port, self.state.pc)?;
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self.decoder.dump_decoded(&mut self.port);
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self.dump_state();
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Ok(())
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}
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fn print_disassembly(&mut self, addr: Address, count: usize) {
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let mut decoder = Z80Decoder::default();
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decoder.dump_disassembly(&mut self.port, addr as u16, count as u16);
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}
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fn execute_command(&mut self, _system: &System, args: &[&str]) -> Result<bool, Error> {
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match args[0] {
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"l" => {
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use super::state::Register;
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self.state.reg[Register::L as usize] = 0x05
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},
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_ => { return Ok(true); },
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}
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Ok(false)
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}
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}
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impl Z80 {
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pub fn check_breakpoints(&mut self, system: &System) {
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for breakpoint in &self.debugger.breakpoints {
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if *breakpoint == self.state.pc {
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println!("Breakpoint reached: {:08x}", *breakpoint);
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system.enable_debugging();
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break;
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}
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}
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}
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}
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