/*
Copyright 2021-2023 Gabriel Jensen.
This file is part of Luma.
Luma is free software: you can redistribute it
and/or modify it under the terms of the GNU
Affero General Public License as published by
the Free Software Foundation, either version 3
of the License, or (at your option) any later
version.
Luma is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
You should have received a copy of the GNU
Affero General Public License along with Luma.
If not, see <https://www.gnu.org/licenses/>.
*/
use crate::instruction::Instruction;
use crate::predicate::Predicate;
use crate::state::State;
use std::sync::{Arc, Mutex};
use std::sync::atomic::AtomicBool;
mod alu_exit_exception;
mod boot;
mod r#continue;
mod enter_exception;
mod execute;
mod exit_exception;
mod fetch_arm;
mod fetch_thumb;
mod isa_adc;
mod isa_add;
mod isa_and;
mod isa_bic;
mod isa_bl;
mod isa_b;
mod isa_bx;
mod isa_cmn;
mod isa_cmp;
mod isa_eor;
mod isa_mov;
mod isa_mul;
mod isa_mvn;
mod isa_orr;
mod isa_rsb;
mod isa_rsc;
mod isa_sbc;
mod isa_sub;
mod isa_swi;
mod isa_teq;
mod isa_tst;
mod isa_memory;
mod exchange;
mod take_state;
// <https://github.com/rust-lang/rust/issues/115966>
#[allow(unused_imports)]
pub use alu_exit_exception::*;
#[allow(unused_imports)]
pub use exchange::*;
#[allow(unused_imports)]
pub use take_state::*;
pub type Fetcher = fn(&mut Cpu) -> (Instruction, Predicate, u32);
pub struct Cpu {
state: Arc<Mutex<State>>,
cycle: u64,
dead: Arc<AtomicBool>,
instruction_size: u32,
fetcher: Fetcher,
}
impl Cpu {
pub fn new(state: State) -> Self {
return Self {
state: Arc::new(Mutex::new(state)),
cycle: 0x0,
dead: Arc::new(AtomicBool::new(false)),
instruction_size: 0x4,
fetcher: Self::fetch_arm,
};
}
#[inline(always)]
#[must_use]
fn fetch(&mut self) -> (Instruction, Predicate, u32) { (self.fetcher)(self) }
}
