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more fixed stuff

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This commit is contained in:
Trevor Merritt
2025-07-16 15:01:16 -04:00
parent ff43a99e0c
commit 6fcf1547d1
29 changed files with 625 additions and 139 deletions
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core/src/periph/mos6522/mos6522.rs
+20 -16
View File
@@ -46,6 +46,10 @@ pub struct Mos6522 {
}
impl Mos6522 {
pub fn max_offset(&self) -> u16 {
self.offset + 0x10
}
pub fn start_clocks(&mut self) {
loop {
let cycle_start = Instant::now();
@@ -66,40 +70,40 @@ mod test {
#[test]
fn registers() {
let mut x = Mos6522::new();
x.tick(0b0000_0000, VIA6522_DDRA, false, true);
x.tick(VIA6522_DDRA as u16, 0b0000_0000, false, true);
assert_eq!(x.dda, 0b0000_0000);
x.tick(0b1111_1111, VIA6522_DDRA, false, true);
x.tick(VIA6522_DDRA as u16, 0b1111_1111, false, true);
assert_eq!(x.dda, 0b1111_1111);
x.tick(0b0000_0000, VIA6522_DDRB, false, true);
x.tick(VIA6522_DDRB as u16, 0b0000_0000, false, true);
assert_eq!(x.ddb, 0b0000_0000);
x.tick(0b1111_1111, VIA6522_DDRB, false, true);
x.tick(VIA6522_DDRB as u16, 0b1111_1111, false, true);
assert_eq!(x.ddb, 0b1111_1111);
x.tick(0b0000_0000, VIA6522_ORA, false, true);
assert_eq!(x.porta, 0b0000_0000);
x.tick(0b1111_1111, VIA6522_ORA, false, true);
assert_eq!(x.porta, 0b1111_1111);
x.tick(VIA6522_ORA as u16, 0b0000_0000, false, true);
assert_eq!(x.ora, 0b0000_0000);
x.tick(VIA6522_ORA as u16, 0b1111_1111, false, true);
assert_eq!(x.ora, 0b1111_1111);
x.tick(0b0000_0000, VIA6522_ORB, false, true);
assert_eq!(x.portb, 0b0000_0000);
x.tick(0b1111_1111, VIA6522_ORB, false, true);
assert_eq!(x.portb, 0b1111_1111);
x.tick(VIA6522_ORB as u16, 0b0000_0000, false, true);
assert_eq!(x.orb, 0b0000_0000);
x.tick(VIA6522_ORB as u16, 0b1111_1111, false, true);
assert_eq!(x.orb, 0b1111_1111);
}
#[test]
fn partial_output_porta() {
let mut x = Mos6522::new();
x.tick(0b1010_1010, VIA6522_DDRA, false, true);
x.tick(0b1111_1111, VIA6522_ORA, false, true);
x.tick(VIA6522_DDRA as u16, 0b1010_1010, false, true);
x.tick(VIA6522_ORA as u16,0b1111_1111, false, true);
assert_eq!(x.porta, 0b1010_1010);
}
#[test]
fn partial_output_portb() {
let mut x = Mos6522::new();
x.tick(0b0101_0101, VIA6522_DDRB, false, true);
x.tick(0b1111_1111, VIA6522_ORB, false, true);
x.tick(VIA6522_DDRB as u16, 0b0101_0101, false, true);
x.tick(VIA6522_ORB as u16, 0b1111_1111, false, true);
assert_eq!(x.portb, 0b0101_0101);
}
}