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fix asl

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This commit is contained in:
Franco Colmenarez
2024-02-03 20:30:46 -05:00
parent 099dd03556
commit 876918fae1
1 changed files with 9 additions and 9 deletions
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18
snes-core/src/cpu/instructions/asl.rs
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@@ -1,7 +1,7 @@
use crate::{cpu::{bus::Bus, registers::Registers}, utils::{alu, addressing::AddressingMode}};
use crate::cpu::cycles;
use super::CPUInstruction;
use super::{read_write_common::{read_16bit_from_address, read_8bit_from_address, write_16bit_to_address, write_8bit_to_address}, CPUInstruction};
use super::decoder_common;
static INSTR_NAME: &str = "ASL";
@@ -13,8 +13,8 @@ pub struct ASL {
impl ASL {
fn determine_instruction(&self, registers: &Registers) -> Box<dyn CPUInstruction> {
match registers.is_16bit_mode() {
true => Box::new(ASL8{addressing_mode: self.addressing_mode}),
false => Box::new(ASL16{addressing_mode: self.addressing_mode}),
true => Box::new(ASL16{addressing_mode: self.addressing_mode}),
false => Box::new(ASL8{addressing_mode: self.addressing_mode}),
}
}
}
@@ -36,11 +36,11 @@ pub struct ASL8 {
}
impl CPUInstruction for ASL8 {
fn execute(&self, registers: &mut Registers, _bus: &mut Bus) {
fn execute(&self, registers: &mut Registers, bus: &mut Bus) {
let (result, affected_flags) = alu::asl(
registers.a as u8,
read_8bit_from_address(registers, bus, self.addressing_mode),
);
registers.set_low_a(result);
write_8bit_to_address(registers, bus, self.addressing_mode, result);
registers.set_flags(&affected_flags);
let (bytes, cycles) = cycles::increment_cycles_bitwise(registers, self.addressing_mode);
registers.increment_pc(bytes); registers.cycles += cycles;
@@ -56,11 +56,11 @@ pub struct ASL16 {
}
impl CPUInstruction for ASL16 {
fn execute(&self, registers: &mut Registers, _bus: &mut Bus) {
fn execute(&self, registers: &mut Registers, bus: &mut Bus) {
let (result, affected_flags) = alu::asl(
registers.a,
read_16bit_from_address(registers, bus, self.addressing_mode)
);
registers.a = result;
write_16bit_to_address(registers, bus, self.addressing_mode, result);
registers.set_flags(&affected_flags);
let (bytes, cycles) = cycles::increment_cycles_bitwise(registers, self.addressing_mode);
registers.increment_pc(bytes); registers.cycles += cycles;