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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/imm.rs`."><title>imm.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Bold-a2c9cd1067f8b328.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-cb6f1f67f1bcd037.css" id="mainThemeStyle"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="juicebox_asm" data-themes="" data-resource-suffix="" data-rustdoc-version="1.73.0 (cc66ad468 2023-10-03)" data-channel="1.73.0" data-search-js="search-6dfdfced5eff6596.js" data-settings-js="settings-de11bff964e9d4e5.js" data-settings-css="settings-8c76f75bfb6bd192.css" data-theme-light-css="light-1596385f77d47ef2.css" data-theme-dark-css="dark-0a43001d3fc2282c.css" data-theme-ayu-css="ayu-fd19013d6ce078bf.css" ><script src="../../static.files/storage-db41da1a38ea3cb8.js"></script><script defer src="../../static.files/src-script-3280b574d94e47b4.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-0795b7d26be81095.js"></script><noscript><link rel="stylesheet" media="(prefers-color-scheme:light)" href="../../static.files/light-1596385f77d47ef2.css"><link rel="stylesheet" media="(prefers-color-scheme:dark)" href="../../static.files/dark-0a43001d3fc2282c.css"><link rel="stylesheet" href="../../static.files/noscript-cffde32267a19fd6.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"></nav><main><nav class="sub"><a class="sub-logo-container" href="../../juicebox_asm/index.html"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><span></span><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><div data-nosnippet><pre class="src-line-numbers"><a href="#1" id="1">1</a>
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</pre></div><pre class="rust"><code><span class="doccomment">//! Definition of different immediate types which are used as input operands for various
//! instructions.
/// Trait to interact with immediate operands.
</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">trait </span>Imm {
<span class="doccomment">/// Get immediate operand as slice of bytes.
</span><span class="kw">fn </span>bytes(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>[u8];
}
<span class="macro">macro_rules! </span>impl_imm {
(<span class="attr">#[<span class="macro-nonterminal">$doc</span>:meta] </span><span class="macro-nonterminal">$name</span>:ident, <span class="macro-nonterminal">$size</span>:expr, from: { $( <span class="macro-nonterminal">$from</span>:ty ),* $(,)<span class="question-mark">? </span>}) => {
<span class="attr">#[<span class="macro-nonterminal">$doc</span>]
</span><span class="kw">pub struct </span><span class="macro-nonterminal">$name</span>([u8; <span class="macro-nonterminal">$size</span>]);
<span class="kw">impl </span>Imm <span class="kw">for </span><span class="macro-nonterminal">$name </span>{
<span class="doccomment">/// Get immediate operand as slice of bytes.
</span><span class="kw">fn </span>bytes(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>[u8] {
<span class="kw-2">&</span><span class="self">self</span>.<span class="number">0
</span>}
}
$(
<span class="kw">impl </span>From<<span class="macro-nonterminal">$from</span>> <span class="kw">for </span><span class="macro-nonterminal">$name </span>{
<span class="kw">fn </span>from(imm: <span class="macro-nonterminal">$from</span>) -> <span class="self">Self </span>{
<span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0u8</span>; <span class="macro-nonterminal">$size</span>];
<span class="kw">let </span>imm = imm.to_ne_bytes();
buf[<span class="number">0</span>..imm.len()].copy_from_slice(<span class="kw-2">&</span>imm);
<span class="macro-nonterminal">$name</span>(buf)
}
}
)*
}
}
<span class="macro">impl_imm!</span>(
<span class="doccomment">/// Type representing an 8 bit immediate.
</span>Imm8, <span class="number">1</span>, from: { u8, i8 }
);
<span class="macro">impl_imm!</span>(
<span class="doccomment">/// Type representing a 16 bit immediate.
</span>Imm16, <span class="number">2</span>, from: { u16, i16, u8, i8 }
);
<span class="macro">impl_imm!</span>(
<span class="doccomment">/// Type representing a 32 bit immediate.
</span>Imm32, <span class="number">4</span>, from: { u32, i32, u16, i16, u8, i8 }
);
<span class="macro">impl_imm!</span>(
<span class="doccomment">/// Type representing a 64 bit immediate.
</span>Imm64, <span class="number">8</span>, from: { u64, i64, u32, i32, u16, i16, u8, i8 }
);
</code></pre></div></section></main></body></html>
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