Noratrieb/chip-8
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This commit is contained in:
nora 2021-05-17 09:29:37 +02:00
parent 040b5d4477
commit b58b8716e5
2 changed files with 9 additions and 11 deletions
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6
src/interpreter/mod.rs
View file

@ -69,7 +69,7 @@ impl Chip8Vm {
pub fn run(program: &[u16]) {
let mut vm = Chip8Vm::default();
let mut vm = Chip8Vm::new();
vm.pc = 200;
while vm.pc < program.len() as u16 {
@ -281,9 +281,7 @@ fn extract_0xyz(value: u16) -> (usize, usize, u16) {
}
fn extract_0xii(value: u16) -> (usize, u8) {
let x = (value & 0x0F00) >> 8;
let ii = (value & 0x00FF) as u8;
(x as usize, ii)
extract_0xkk(value)
}
fn extract_0nnn(value: u16) -> u16 {

14
src/interpreter/test.rs
View file

@ -2,7 +2,7 @@ use crate::interpreter::{Chip8Vm, execute};
#[test]
fn instructions_0_1_2() {
let mut vm = Chip8Vm::default();
let mut vm = Chip8Vm::new();
//frame clearing is not implemented yet.
vm.pc = 10;
execute(0x20FF, &mut vm); // call 0FF
@ -18,7 +18,7 @@ fn instructions_0_1_2() {
#[test]
fn instructions_3_4_5() {
let mut vm = Chip8Vm::default();
let mut vm = Chip8Vm::new();
vm.reg[0] = 0xF2;
execute(0x30F2, &mut vm);
assert_eq!(vm.pc, 1);
@ -33,7 +33,7 @@ fn instructions_3_4_5() {
#[test]
fn instructions_6_7() {
let mut vm = Chip8Vm::default();
let mut vm = Chip8Vm::new();
execute(0x60AB, &mut vm);
assert_eq!(vm.reg[0], 0xAB);
execute(0x69FF, &mut vm);
@ -64,7 +64,7 @@ macro_rules! test_reg_ops_flag {
#[test]
fn instructions_8xyz() {
let mut vm = Chip8Vm::default();
let mut vm = Chip8Vm::new();
vm.reg[1] = 2;
// 0 store V1 in V0
execute(0x8010, &mut vm);
@ -102,7 +102,7 @@ fn instructions_8xyz() {
#[test]
fn instruction_9() {
let mut vm = Chip8Vm::default();
let mut vm = Chip8Vm::new();
vm.reg[0] = 10;
vm.reg[1] = 11;
execute(0x9010, &mut vm);
@ -113,7 +113,7 @@ fn instruction_9() {
#[test]
fn instruction_a_b_c() {
let mut vm = Chip8Vm::default();
let mut vm = Chip8Vm::new();
execute(0xA123, &mut vm);
assert_eq!(vm.i, 0x123);
vm.reg[0] = 100;
@ -128,7 +128,7 @@ fn instruction_a_b_c() {
#[test]
fn instruction_f() {
let mut vm = Chip8Vm::default();
let mut vm = Chip8Vm::new();
vm.delay_t = 245;
execute(0xF007, &mut vm);