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| author | johannst <johannst@users.noreply.github.com> | 2024-12-13 00:18:53 +0000 |
|---|---|---|
| committer | johannst <johannst@users.noreply.github.com> | 2024-12-13 00:18:53 +0000 |
| commit | c94a65c993f5da6a86bd1e6d23e359ba2052f836 (patch) | |
| tree | 8ca23ecd01fb4cd26c958e310c3f352cc7c73d63 /src/juicebox_asm/mem.rs.html | |
| parent | 741d915aed07eb4ea265d8e90cf64e8ca6552ddc (diff) | |
| download | juicebox-asm-c94a65c993f5da6a86bd1e6d23e359ba2052f836.tar.gz juicebox-asm-c94a65c993f5da6a86bd1e6d23e359ba2052f836.zip | |
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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>mem.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" 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href="#114" id="114">114</a> +<a href="#115" id="115">115</a> +<a href="#116" id="116">116</a></pre></div><pre class="rust"><code><span class="doccomment">//! Definition of different addressing modes and memory operande used as input +//! and ouput operands in various instructions. + +</span><span class="kw">use </span><span class="kw">crate</span>::Reg64; + +<span class="attr">#[derive(Clone, Copy)] +</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">enum </span>AddrMode { + <span class="doccomment">/// An indirect memory operand, eg `mov [rax], rcx`. + </span>Indirect, + <span class="doccomment">/// An indirect memory operand with additional displacement, eg `mov [rax + 0x10], rcx`. + </span>IndirectDisp, + <span class="doccomment">/// An indirect memory operand in the form base + index, eg `mov [rax + rcx], rdx`. + </span>IndirectBaseIndex, +} + +<span class="doccomment">/// Trait to interact with memory operands. +</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">trait </span>Mem { + <span class="doccomment">/// Get the addressing mode [`AddrMode`] of the memory operand. + </span><span class="kw">fn </span>mode(<span class="kw-2">&</span><span class="self">self</span>) -> AddrMode; + + <span class="doccomment">/// Get the base address register of the memory operand. + </span><span class="kw">fn </span>base(<span class="kw-2">&</span><span class="self">self</span>) -> Reg64; + + <span class="doccomment">/// Get the index register of the memory operand. + </span><span class="kw">fn </span>index(<span class="kw-2">&</span><span class="self">self</span>) -> Reg64; + + <span class="doccomment">/// Get the displacement of the memory operand. + </span><span class="kw">fn </span>disp(<span class="kw-2">&</span><span class="self">self</span>) -> i32; + + <span class="doccomment">/// Check if memory operand is 64 bit. + </span><span class="kw">fn </span>is_64() -> bool; +} + +<span class="macro">macro_rules!</span> impl_mem { + ($(<span class="attr">#[<span class="macro-nonterminal">$doc</span>:meta] </span><span class="macro-nonterminal">$name</span>:ident)+) => { + $( + <span class="attr">#[<span class="macro-nonterminal">$doc</span>] + </span><span class="kw">pub struct </span><span class="macro-nonterminal">$name </span>{ + mode: AddrMode, + base: Reg64, + index: Reg64, + disp: i32, + } + + <span class="kw">impl </span>Mem <span class="kw">for </span><span class="macro-nonterminal">$name </span>{ + <span class="kw">fn </span>mode(<span class="kw-2">&</span><span class="self">self</span>) -> AddrMode { + <span class="self">self</span>.mode + } + + <span class="kw">fn </span>base(<span class="kw-2">&</span><span class="self">self</span>) -> Reg64 { + <span class="self">self</span>.base + } + + <span class="kw">fn </span>index(<span class="kw-2">&</span><span class="self">self</span>) -> Reg64 { + <span class="self">self</span>.index + } + + <span class="kw">fn </span>disp(<span class="kw-2">&</span><span class="self">self</span>) -> i32 { + <span class="self">self</span>.disp + } + + <span class="kw">fn </span>is_64() -> bool { + <span class="kw">use </span>std::any::TypeId; + TypeId::of::<<span class="self">Self</span>>() == TypeId::of::<Mem64>() + } + } + + <span class="kw">impl </span><span class="macro-nonterminal">$name </span>{ + <span class="doccomment">/// Create a memory operand with `indirect` addressing mode. + /// For example `mov [rax], rcx`. + </span><span class="kw">pub fn </span>indirect(base: Reg64) -> <span class="self">Self </span>{ + <span class="self">Self </span>{ + mode: AddrMode::Indirect, + base, + index: Reg64::rax, <span class="comment">/* zero index */ + </span>disp: <span class="number">0</span>, + } + } + + <span class="doccomment">/// Create a memory operand with `indirect + displacement` + /// addressing mode. + /// For example `mov [rax + 0x10], rcx`. + </span><span class="kw">pub fn </span>indirect_disp(base: Reg64, disp: i32) -> <span class="self">Self </span>{ + <span class="self">Self </span>{ + mode: AddrMode::IndirectDisp, + base, + index: Reg64::rax, <span class="comment">/* zero index */ + </span>disp, + } + } + + <span class="doccomment">/// Create a memory operand with `base + index` addressing mode. + /// For example `mov [rax + rcx], rdx`. + </span><span class="kw">pub fn </span>indirect_base_index(base: Reg64, index: Reg64) -> <span class="self">Self </span>{ + <span class="self">Self </span>{ + mode: AddrMode::IndirectBaseIndex, + base, + index, + disp: <span class="number">0</span>, + } + } + } + )+ + } +} + +<span class="macro">impl_mem!</span>( + <span class="doccomment">/// A memory operand with `byte` size (8 bit). + </span>Mem8 + <span class="doccomment">/// A memory operand with `word` size (16 bit). + </span>Mem16 + <span class="doccomment">/// A memory operand with `dword` size (32 bit). + </span>Mem32 + <span class="doccomment">/// A memory operand with `qword` size (64 bit). + </span>Mem64 +); +</code></pre></div></section></main></body></html>
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