tjh.dev
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Cargo.toml
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Cargo.toml
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edition = "2021"
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[dependencies]
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smallvec = { version = "1.13.2", optional = true }
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smallvec = { version = "1.13.2" }
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[features]
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default = ["reclaim-memory", "smallvec"]
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default = ["reclaim-memory"]
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reclaim-memory = []
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smallvec = ["dep:smallvec"]
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timing = []
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src/main.rs
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src/main.rs
···
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#[cfg(feature = "smallvec")]
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use smallvec::SmallVec;
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use std::io::{Read, Write};
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#[cfg(feature = "timing")]
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use std::time::Instant;
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use um::{Operation, Parameter, Platter};
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#[cfg(feature = "smallvec")]
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const SMALLVEC_SIZE: usize = 24;
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fn main() {
···
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pub struct Um<'a> {
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program_counter: Platter,
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registers: [Platter; 8],
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#[cfg(feature = "smallvec")]
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memory: Vec<SmallVec<[Platter; SMALLVEC_SIZE]>>,
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#[cfg(not(feature = "smallvec"))]
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memory: Vec<Vec<Platter>>,
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#[cfg(feature = "reclaim-memory")]
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free_blocks: Vec<Platter>,
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ops: Vec<Operation>,
···
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)
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}
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#[cfg(feature = "smallvec")]
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fn new_block(len: usize) -> SmallVec<[Platter; SMALLVEC_SIZE]> {
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smallvec::smallvec![0; len]
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}
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#[cfg(not(feature = "smallvec"))]
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fn new_block(len: usize) -> Vec<Platter> {
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vec![0; len]
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}
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}