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/*
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/>.
*/
macro_rules! exchange {
($cpu: ident, $t: expr) => {{
use crate::log_status;
use crate::cpu::Fetcher;
log_status!("exchanging to {}", match $t {
false => "ARM",
true => "Thumb",
});
const DATA: [(u32, Fetcher); 0x2] = [
(0x4, Cpu::fetch_arm),
(0x2, Cpu::fetch_thumb),
];
let index = $t as usize & 0b1;
$cpu.instruction_size = unsafe { DATA.get_unchecked(index).0 };
$cpu.fetcher = unsafe { DATA.get_unchecked(index).1 };
}};
}
pub(crate) use exchange;
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