1
0
Fork 0
cl-sites/ecl.common-lisp.dev/static/manual/Removed-features.html
2024-12-24 19:15:49 +01:00

213 lines
7.7 KiB
HTML

<!DOCTYPE html>
<html>
<!-- Created by GNU Texinfo 7.0.3, https://www.gnu.org/software/texinfo/ -->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Removed features (ECL Manual)</title>
<meta name="description" content="Removed features (ECL Manual)">
<meta name="keywords" content="Removed features (ECL Manual)">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="makeinfo">
<meta name="viewport" content="width=device-width,initial-scale=1">
<link href="index.html" rel="start" title="Top">
<link href="Indexes.html" rel="index" title="Indexes">
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
<link href="Developer_0027s-guide.html" rel="up" title="Developer's guide">
<link href="Porting-ECL.html" rel="prev" title="Porting ECL">
<style type="text/css">
<!--
/* colors */
span.r {font-family: initial; font-weight: normal; font-style: normal}
@media (prefers-color-scheme: dark) {
/* dark theme */
html { color: seashell;
background: #1A1A1A; }
body { background: #1A1A1A; }
th { border-bottom: 2px solid lightgray; }
h1, h2, h3, h4, h5 { background-image: linear-gradient(to left, #202020, #3A3A3A); }
code, var, code a { color: darkorange;
background: #2A2A2A; }
a { color: seashell; }
pre { background: #2A2A2A;
color: seashell;
/* mark longer code block with stripe on the left */
border-left: 5px solid darkorange;
padding-left: 10px; }
pre.screen { background: #2A2A2A;
border: 1px solid lightgray; }
pre.programlisting { background: #2A2A2A;
border-left: 1px solid lightgray;
border-top: 1px solid lightgray; }
/* we need a light background in order for the images to be readable */
img { background: white }
}
@media (prefers-color-scheme: light) {
/* light theme */
html { background: white }
body { background: white }
th { border-bottom: 2px solid gray; }
h1, h2, h3, h4, h5 { background: lightgray; }
code, var, code a { color: darkred;
background: whitesmoke; }
a { color: #000; }
pre { background: whitesmoke;
color: black;
/* mark longer code block with stripe on the left */
border-left: 5px solid darkred;
padding-left: 10px; }
pre.screen { background: #EEE;
border: 1px solid black; }
pre.programlisting { background: #EEEEEE;
border-left: 1px solid black;
border-top: 1px solid black; }
}
body {
margin: 1em 125px 0 10%;
line-height: 1.5em;
padding: 0 2em 1em 2em;
font: 13px Verdana,Arial, sans-serif
}
ul, dd, dl, dt { margin-top: 0; margin-bottom: 0; }
p, code, td, dl, dt {
line-height: 1.5em;
}
table {
font: inherit;
border-collapse: collapse;
}
th, td {
vertical-align: top;
}
h1, h2, h3 { padding-left: 15px; }
h4, h5 { padding-left: 5px; }
code, pre {
font-size: 1em;
font-family: monospace;
}
var {
font-size: 1em;
}
/* links inside code appear the same as the code itself */
code a {
font-weight: normal;
text-decoration: none;
}
/* but get an underline when hovering */
code a:hover {
text-decoration: underline;
}
/* ordinary links appear in bold */
a { font-weight: bold; }
pre.verbatim {
margin: 0 0 0 0;
}
pre {
overflow: auto;
}
pre.screen {
font-weight: bold;
padding: 0.5em;
}
pre.programlisting {
padding: 0.5em;
}
div p { padding: 0 2em }
li p { padding: 0; margin: 0 }
hr { display: none; }
div.funcsynopsis p {
text-indent: -2em;
}
div.variablelist {
padding: 0 2em;
}
.type, .funcsynopsis, .symbol {
font-family: monospace;
}
.type, .symbol, .replaceable {
white-space: nowrap;
}
-->
</style>
</head>
<body lang="en">
<div class="section-level-extent" id="Removed-features">
<div class="nav-panel">
<p>
Previous: <a href="Porting-ECL.html" accesskey="p" rel="prev">Porting ECL</a>, Up: <a href="Developer_0027s-guide.html" accesskey="u" rel="up">Developer&rsquo;s guide</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
</div>
<h3 class="section" id="Removed-features-1">4.9 Removed features</h3>
<h4 class="subheading" id="In_002dhouse-DFFI">In-house DFFI</h4>
<p>Commit <code class="code">10bd3b613fd389da7640902c2b88a6e36088c920</code>. Native DFFI was
replaced by a <a class="url" href="https://sourceware.org/libffi/">libffi</a> long time ago,
but we have maintained the code as a fallback. Due to small number of
supported platforms and no real use it has been removed in 2016.
</p>
<h4 class="subheading" id="In_002dhouse-GC">In-house GC</h4>
<p>Commit <code class="code">61500316b7ea17d0e42f5ca127f2f9fa3e6596a8</code>. Broken GC is
replaced by BoehmGC library. This may be added back as a fallback in
the near future.
</p>
<p><code class="code">3bd9799a2fef21cc309472e604a46be236b155c7</code> removes a leftover
(apparently gbc.d wasn&rsquo;t bdwgc glue).
</p>
<h4 class="subheading" id="Green-threads">Green threads</h4>
<p>Commit <code class="code">41923d5927f31f4dd702f546b9caee74e98a2080</code>. Green threads
(aka light weight processes) has been replaced with native threads
implementation. There is an ongoing effort to bring them back as an
alternative interface.
</p>
<h4 class="subheading" id="Compiler-newcmp">Compiler newcmp</h4>
<p>Commit <code class="code">9b8258388487df8243e2ced9c784e569c0b34c4f</code> This was
abandoned effort of changing the compiler architecture. Some clever
ideas and a compiler package hierarchy. Some of these things should be
incorporated during the evolution of the primary compiler.
</p>
<h4 class="subheading" id="Old-MIT-loop">Old MIT loop</h4>
<p>Commit <code class="code">5042589043a7be853b7f85fd7a996747412de6b4</code>. This old loop
implementation has got superseded by the one incorporated from
Symbolics LOOP in 2001.
</p>
<h4 class="subheading" id="Support-for-bignum-arithmetic-_0028earith_002ed_0029">Support for bignum arithmetic (earith.d)</h4>
<p>Commit <code class="code">edfc2ba785d6a64667e89c869ef0a872d7b9704b</code>. Removes
pre-gmp bignum code. Name comes probably from &ldquo;extended arithmetic&rdquo;,
contains multiplication and division routines (assembler and a
portable implementation).
</p>
<h4 class="subheading" id="Unification-module">Unification module</h4>
<p>Commit <code class="code">6ff5d20417a21a76846c4b28e532aac097f03109</code>. Old unification
module (logic programming) from EcoLisp times.
</p>
<h4 class="subheading" id="Hierarchical-packages">Hierarchical packages</h4>
<p>Commit <code class="code">72e422f1b3c4b3c52fa273b961517db943749a8f</code>. Partially
broken. Tests left in package-extensions.lsp.
</p>
<h4 class="subheading" id="g_t8_002dbit-opcodes-in-bytecodes-interpreter">8-bit opcodes in bytecodes interpreter</h4>
<p>Commit <code class="code">c3244b0148ed352808779b07b25c3edddf9d7349</code>. Works fine but
provides no real gain and is limited to intel.
</p>
<h4 class="subheading" id="thread-local-variables">thread local variables</h4>
<p>Commit <code class="code">618f6e92e8144f7b95bc36b42a337c212bacc8e7</code>. Disabled by
default, practically not tested, works on limited number of platforms.
</p></div>
<hr>
<div class="nav-panel">
<p>
Previous: <a href="Porting-ECL.html" accesskey="p" rel="prev">Porting ECL</a>, Up: <a href="Developer_0027s-guide.html" accesskey="u" rel="up">Developer&rsquo;s guide</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indexes.html" title="Index" rel="index">Index</a>]</p>
</div>
</body>
</html>