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SET instruction

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This commit is contained in:
Franco Colmenarez 2021-10-19 10:06:22 -05:00
parent e4586db39a
commit 9013c09437
1 changed files with 30 additions and 0 deletions
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30
src/cpu.rs
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@ -1010,6 +1010,18 @@ impl CPU {
false => bus.write(self.registers.get(register), val), false => bus.write(self.registers.get(register), val),
}; };
}, },
Opcode::SET(index, register) => {
let mut val = 0;
match register.is_8bit() {
true => val = self.registers.get_8bit(register),
false => val = bus.read(self.registers.get(register)),
};
let val = set_bit(val, true, index);
match register.is_8bit() {
true => self.registers.set(register, val as u16),
false => bus.write(self.registers.get(register), val),
};
},
_ => {}, _ => {},
}; };
}, },
@ -2939,6 +2951,24 @@ mod tests {
assert_eq!(cpu.registers.get(Register::PC), 0x102); assert_eq!(cpu.registers.get(Register::PC), 0x102);
} }
#[test]
fn test_prefix_cb_set_instruction() {
let mut bus = Bus::new();
let mut cpu = CPU::new();
cpu.registers.set(Register::A, 0b11110101);
cpu.exec(Opcode::PrefixCB(Box::new(Opcode::SET(BitIndex::I1, Register::A))), &mut bus);
assert_eq!(cpu.registers.get_8bit(Register::A), 0b11110111);
assert_eq!(cpu.registers.get(Register::PC), 0x102);
let mut cpu = CPU::new();
let addr = 0xC000;
cpu.registers.set(Register::HL, addr);
bus.write(addr, 0b11110101);
cpu.exec(Opcode::PrefixCB(Box::new(Opcode::SET(BitIndex::I3 ,Register::HL))), &mut bus);
assert_eq!(bus.read(addr), 0b11111101);
assert_eq!(cpu.registers.get(Register::PC), 0x102);
}
#[test] #[test]
fn test_daa_instruction() { fn test_daa_instruction() {
let mut bus = Bus::new(); let mut bus = Bus::new();