| 1 | mod assembler; |
| 2 | mod cpu; |
| 3 | mod instructions; |
| 4 | mod memory; |
| 5 | |
| 6 | use std::io; |
| 7 | |
| 8 | use cpu::CPU; |
| 9 | use memory::Memory; |
| 10 | use clap::Parser; |
| 11 | use crate::assembler::assembler; |
| 12 | |
| 13 | #[derive(Parser, Debug)] |
| 14 | #[command(version, about, long_about = None)] |
| 15 | struct Args { |
| 16 | #[arg(short, long)] |
| 17 | filename: String, |
| 18 | } |
| 19 | |
| 20 | |
| 21 | fn main() { |
| 22 | let args = Args::parse(); |
| 23 | |
| 24 | let mut cpu = CPU {sp: 0xFFFE, ..Default::default( )}; |
| 25 | let mut mem = Memory::new(); |
| 26 | |
| 27 | let asm = std::fs::read_to_string(args.filename).unwrap(); |
| 28 | let program = assembler(&asm); |
| 29 | |
| 30 | for (i, byte) in program.iter().enumerate() { |
| 31 | mem.write(i as u16, *byte); |
| 32 | } |
| 33 | |
| 34 | while !cpu.halted { |
| 35 | cpu.debug_instr(&mem); |
| 36 | cpu.step(&mut mem); |
| 37 | |
| 38 | let mut buf = String::new(); |
| 39 | io::stdin().read_line(&mut buf).unwrap(); |
| 40 | } |
| 41 | } |