1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
<!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><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-46f98efaafac5295.ttf.woff2,FiraSans-Regular-018c141bf0843ffd.woff2,FiraSans-Medium-8f9a781e4970d388.woff2,SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2,SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-b0742ba02757f159.css"><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="1.83.0 (90b35a623 2024-11-26)" data-channel="1.83.0" data-search-js="search-f0d225181b97f9a4.js" data-settings-js="settings-805db61a62df4bd2.js" ><script src="../../static.files/storage-1d39b6787ed640ff.js"></script><script defer src="../../static.files/src-script-e66d777a5a92e9b2.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-f070b9041d14864c.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-0111fcff984fae8f.css"></noscript><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"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer"></div><main><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">juicebox_asm/</div>imm.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap"><div data-nosnippet><pre class="src-line-numbers">
<a href="#1" id="1">1</a>
<a href="#2" id="2">2</a>
<a href="#3" id="3">3</a>
<a href="#4" id="4">4</a>
<a href="#5" id="5">5</a>
<a href="#6" id="6">6</a>
<a href="#7" id="7">7</a>
<a href="#8" id="8">8</a>
<a href="#9" id="9">9</a>
<a href="#10" id="10">10</a>
<a href="#11" id="11">11</a>
<a href="#12" id="12">12</a>
<a href="#13" id="13">13</a>
<a href="#14" id="14">14</a>
<a href="#15" id="15">15</a>
<a href="#16" id="16">16</a>
<a href="#17" id="17">17</a>
<a href="#18" id="18">18</a>
<a href="#19" id="19">19</a>
<a href="#20" id="20">20</a>
<a href="#21" id="21">21</a>
<a href="#22" id="22">22</a>
<a href="#23" id="23">23</a>
<a href="#24" id="24">24</a>
<a href="#25" id="25">25</a>
<a href="#26" id="26">26</a>
<a href="#27" id="27">27</a>
<a href="#28" id="28">28</a>
<a href="#29" id="29">29</a>
<a href="#30" id="30">30</a>
<a href="#31" id="31">31</a>
<a href="#32" id="32">32</a>
<a href="#33" id="33">33</a>
<a href="#34" id="34">34</a>
<a href="#35" id="35">35</a>
<a href="#36" id="36">36</a>
<a href="#37" id="37">37</a>
<a href="#38" id="38">38</a>
<a href="#39" id="39">39</a>
<a href="#40" id="40">40</a>
<a href="#41" id="41">41</a>
<a href="#42" id="42">42</a>
<a href="#43" id="43">43</a>
<a href="#44" id="44">44</a>
<a href="#45" id="45">45</a>
<a href="#46" id="46">46</a>
<a href="#47" id="47">47</a>
<a href="#48" id="48">48</a>
<a href="#49" id="49">49</a>
<a href="#50" id="50">50</a>
<a href="#51" id="51">51</a>
<a href="#52" id="52">52</a>
<a href="#53" id="53">53</a>
<a href="#54" id="54">54</a>
<a href="#55" id="55">55</a>
<a href="#56" id="56">56</a>
<a href="#57" id="57">57</a>
<a href="#58" id="58">58</a>
<a href="#59" id="59">59</a>
<a href="#60" id="60">60</a>
<a href="#61" id="61">61</a>
<a href="#62" id="62">62</a>
<a href="#63" id="63">63</a></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, usize, isize }
);
<span class="attr">#[cfg(test)]
</span><span class="kw">mod </span>test {
<span class="kw">use super</span>::<span class="kw-2">*</span>;
<span class="kw">use </span>std::mem::size_of;
<span class="attr">#[test]
</span><span class="kw">fn </span>test_usize_isize() {
<span class="comment">// Imm64 should not implementd from usize/isize if this fails.
</span><span class="macro">assert_eq!</span>(size_of::<usize>(), size_of::<Imm64>());
<span class="macro">assert_eq!</span>(size_of::<isize>(), size_of::<Imm64>());
}
}
</code></pre></div></section></main></body></html>
|
