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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/>.
*/
use crate::log;
use crate::cpu::{Cpu, take_state_mut};
impl Cpu {
pub(super) fn isa_b(&mut self, imm: i32) {
take_state_mut!(state, self);
let mut target = state.read_register(0xF).wrapping_add_signed(imm);
log!("b {target:#X}");
target = target.wrapping_add(self.instruction_size);
state.write_register(0xF, target);
}
}
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