Starting point for MCS-4 emulation and MOS 6502 inheritance

This commit is contained in:
Jan-Peter von Hunnius 2025-09-21 18:54:27 +02:00
parent 4ddb4a060f
commit ac8ebbafe9
13 changed files with 823 additions and 4 deletions

View file

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use crate::{PinValue, Component};
use crate::components::cpu::cmos_65c02::CMOS65C02;
use crate::components::cpu::mos_6502::{Registers, MOS6502};
pub trait CPU: Component {
fn reset(&mut self);
fn execute_instruction(&mut self);
fn get_registers(&self) -> &Registers;
fn get_registers_mut(&mut self) -> &mut Registers;
fn read_memory(&self, address: u16) -> u8;
fn write_memory(&mut self, address: u16, value: u8);
}
pub trait MOS6502Family: CPU {
// Common 6502 family methods
fn lda(&mut self, value: u8);
fn sta(&mut self, address: u16);
fn tax(&mut self);
// More common instructions...
}
pub trait CMOS65C02Extensions: MOS6502Family {
// 65C02-specific methods
fn bra(&mut self, address: u16);
fn phx(&mut self);
fn ply(&mut self);
fn stp(&mut self);
fn wai(&mut self);
}
impl CPU for MOS6502 {
fn reset(&mut self) {
todo!()
}
fn execute_instruction(&mut self) {
todo!()
}
fn get_registers(&self) -> &Registers {
todo!()
}
fn get_registers_mut(&mut self) -> &mut Registers {
todo!()
}
fn read_memory(&self, address: u16) -> u8 {
todo!()
}
fn write_memory(&mut self, address: u16, value: u8) {
todo!()
}
}
// Implement for both MOS6502 and CMOS65C02
impl MOS6502Family for MOS6502 {
fn lda(&mut self, value: u8) {
self.lda(value)
}
fn sta(&mut self, address: u16) {
todo!()
}
fn tax(&mut self) {
todo!()
}
// Implement other methods...
}
impl CPU for CMOS65C02 {
fn reset(&mut self) {
todo!()
}
fn execute_instruction(&mut self) {
todo!()
}
fn get_registers(&self) -> &Registers {
todo!()
}
fn get_registers_mut(&mut self) -> &mut Registers {
todo!()
}
fn read_memory(&self, address: u16) -> u8 {
todo!()
}
fn write_memory(&mut self, address: u16, value: u8) {
todo!()
}
}
impl MOS6502Family for CMOS65C02 {
fn lda(&mut self, value: u8) {
self.base_6502.lda(value)
}
fn sta(&mut self, address: u16) {
todo!()
}
fn tax(&mut self) {
todo!()
}
// Implement other methods...
}
impl CMOS65C02Extensions for CMOS65C02 {
fn bra(&mut self, address: u16) {
self.bra(address)
}
fn phx(&mut self) {
todo!()
}
fn ply(&mut self) {
todo!()
}
fn stp(&mut self) {
todo!()
}
fn wai(&mut self) {
todo!()
}
// Implement other 65C02-specific methods...
}