Jan-Peter von Hunnius
cff459d2b5
Added threaded RunnableComponent trait Accurate, threaded implementation of the 4001 ROM
45 lines
865 B
Rust
45 lines
865 B
Rust
use std::fmt;
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/// 12-bit unsigned integer for MCS-4 address space
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#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
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pub struct U12(u16);
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impl U12 {
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pub fn new(value: u16) -> Self {
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U12(value & 0xFFF)
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}
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pub fn value(&self) -> u16 {
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self.0
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}
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pub fn inc(&mut self) {
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self.0 = (self.0 + 1) & 0xFFF;
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}
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pub fn set(&mut self, value: u16) {
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self.0 = value & 0xFFF;
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}
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pub fn wrapping_add(&self, value: u16) -> Self {
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U12::new(self.0.wrapping_add(value))
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}
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}
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impl fmt::Display for U12 {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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write!(f, "{:03X}", self.0)
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}
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}
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impl From<u16> for U12 {
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fn from(value: u16) -> Self {
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U12::new(value)
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}
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}
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impl From<U12> for u16 {
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fn from(value: U12) -> Self {
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value.value()
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}
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}
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