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Fix comments in extended CHIP-8 emulator #85

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Fix comments in extended CHIP-8 emulator #85

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7 changes: 4 additions & 3 deletions ch5/ch5-cpu4/src/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -53,18 +53,19 @@ impl CPU {
self.registers[vx as usize] = kk;
}

/// (7xkk) Add sets the value `kk` into register `vx`
/// (7xkk) Add adds the value `kk` into register `vx`
fn add(&mut self, vx: u8, kk: u8) {
self.registers[vx as usize] += kk;
}

/// (3xkk / 5xy_) SE **S**kip if **e**qual
fn se(&mut self, vx: u8, kk: u8) {
if vx == kk {
self.position_in_memory += 2;
}
}

/// () SNE **S**tore if **n**ot **e**qual
/// (4xkk) SNE **S**kip if **n**ot **e**qual
fn sne(&mut self, vx: u8, kk: u8) {
if vx != kk {
self.position_in_memory += 2;
Expand Down Expand Up @@ -154,4 +155,4 @@ fn main() {
assert_eq!(cpu.registers[0], 45);

println!("5 + (10 * 2) + (10 * 2) = {}", cpu.registers[0]);
}
}