dnutiu/chip8-rust
dnutiu/chip8-rust
1
1
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

use c-like struct for Set instruction

Browse source
This commit is contained in:
Denis-Cosmin Nutiu 2024-12-10 23:57:22 +02:00
parent 5dd11bc74c
commit a4e2942eea
2 changed files with 7 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/emulator.rs
View file

@ -270,7 +270,7 @@ where
// Set PC to subroutine address // Set PC to subroutine address
self.program_counter = address; self.program_counter = address;
} }
ProcessorInstruction::Set(vx, vy) => { ProcessorInstruction::Set { vx, vy } => {
trace!("Set VX={vx:04x} VY={vy:04x}"); trace!("Set VX={vx:04x} VY={vy:04x}");
self.registers[vx as usize] = self.registers[vy as usize]; self.registers[vx as usize] = self.registers[vy as usize];
} }

12
src/instruction.rs
View file

@ -31,7 +31,7 @@ pub enum ProcessorInstruction {
/// Pops the stack and sets the PC /// Pops the stack and sets the PC
Return, Return,
/// Set VX to the value of VY /// Set VX to the value of VY
Set(u8, u8), Set { vx: u8, vy: u8 },
/// Or VX with VY and store in VX. /// Or VX with VY and store in VX.
BinaryOr(u8, u8), BinaryOr(u8, u8),
/// And VX with VY and store in VX. /// And VX with VY and store in VX.
@ -162,10 +162,10 @@ impl Instruction {
(0x2, _, _, _) => ProcessorInstruction::Call { (0x2, _, _, _) => ProcessorInstruction::Call {
address: Self::grab_inner_data(data), address: Self::grab_inner_data(data),
}, },
(0x8, _, _, 0x0) => ProcessorInstruction::Set( (0x8, _, _, 0x0) => ProcessorInstruction::Set {
Self::grab_first_nibble(data), vx: Self::grab_first_nibble(data),
Self::grab_middle_nibble(data), vy: Self::grab_middle_nibble(data),
), },
(0x8, _, _, 0x1) => ProcessorInstruction::BinaryOr( (0x8, _, _, 0x1) => ProcessorInstruction::BinaryOr(
Self::grab_first_nibble(data), Self::grab_first_nibble(data),
Self::grab_middle_nibble(data), Self::grab_middle_nibble(data),
@ -423,7 +423,7 @@ mod tests {
let instruction = Instruction::new([0x81, 0x40]); let instruction = Instruction::new([0x81, 0x40]);
assert_eq!( assert_eq!(
instruction.processor_instruction, instruction.processor_instruction,
ProcessorInstruction::Set(1, 4) ProcessorInstruction::Set { vx: 1, vy: 4 }
) )
} }