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diff --git a/share/doc/gcc/MMIX-Options.html b/share/doc/gcc/MMIX-Options.html new file mode 100644 index 0000000..9133303 --- /dev/null +++ b/share/doc/gcc/MMIX-Options.html @@ -0,0 +1,185 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- This file documents the use of the GNU compilers. + +Copyright (C) 1988-2023 Free Software Foundation, Inc. + +Permission is granted to copy, distribute and/or modify this document +under the terms of the GNU Free Documentation License, Version 1.3 or +any later version published by the Free Software Foundation; with the +Invariant Sections being "Funding Free Software", the Front-Cover +Texts being (a) (see below), and with the Back-Cover Texts being (b) +(see below). A copy of the license is included in the section entitled +"GNU Free Documentation License". + +(a) The FSF's Front-Cover Text is: + +A GNU Manual + +(b) The FSF's Back-Cover Text is: + +You have freedom to copy and modify this GNU Manual, like GNU + software. Copies published by the Free Software Foundation raise + funds for GNU development. --> +<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> +<head> +<title>Using the GNU Compiler Collection (GCC): MMIX Options</title> + +<meta name="description" content="Using the GNU Compiler Collection (GCC): MMIX Options"> +<meta name="keywords" content="Using the GNU Compiler Collection (GCC): MMIX Options"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="makeinfo"> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<link href="index.html#Top" rel="start" title="Top"> +<link href="Indices.html#Indices" rel="index" title="Indices"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="Submodel-Options.html#Submodel-Options" rel="up" title="Submodel Options"> +<link href="MN10300-Options.html#MN10300-Options" rel="next" title="MN10300 Options"> +<link href="MIPS-Options.html#MIPS-Options" rel="previous" title="MIPS Options"> +<style type="text/css"> +<!-- +a.summary-letter {text-decoration: none} +blockquote.smallquotation {font-size: smaller} +div.display {margin-left: 3.2em} +div.example {margin-left: 3.2em} +div.indentedblock {margin-left: 3.2em} +div.lisp {margin-left: 3.2em} +div.smalldisplay {margin-left: 3.2em} +div.smallexample {margin-left: 3.2em} +div.smallindentedblock {margin-left: 3.2em; font-size: smaller} +div.smalllisp {margin-left: 3.2em} +kbd {font-style:oblique} +pre.display {font-family: inherit} +pre.format {font-family: inherit} +pre.menu-comment {font-family: serif} +pre.menu-preformatted {font-family: serif} +pre.smalldisplay {font-family: inherit; font-size: smaller} +pre.smallexample {font-size: smaller} +pre.smallformat {font-family: inherit; font-size: smaller} +pre.smalllisp {font-size: smaller} +span.nocodebreak {white-space:nowrap} +span.nolinebreak {white-space:nowrap} +span.roman {font-family:serif; font-weight:normal} +span.sansserif {font-family:sans-serif; font-weight:normal} +ul.no-bullet {list-style: none} +--> +</style> + + +</head> + +<body lang="en_US" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> +<a name="MMIX-Options"></a> +<div class="header"> +<p> +Next: <a href="MN10300-Options.html#MN10300-Options" accesskey="n" rel="next">MN10300 Options</a>, Previous: <a href="MIPS-Options.html#MIPS-Options" accesskey="p" rel="previous">MIPS Options</a>, Up: <a href="Submodel-Options.html#Submodel-Options" accesskey="u" rel="up">Submodel Options</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p> +</div> +<hr> +<a name="MMIX-Options-1"></a> +<h4 class="subsection">3.19.29 MMIX Options</h4> +<a name="index-MMIX-Options"></a> + +<p>These options are defined for the MMIX: +</p> +<dl compact="compact"> +<dd><a name="index-mlibfuncs"></a> +<a name="index-mno_002dlibfuncs"></a> +</dd> +<dt><code>-mlibfuncs</code></dt> +<dt><code>-mno-libfuncs</code></dt> +<dd><p>Specify that intrinsic library functions are being compiled, passing all +values in registers, no matter the size. +</p> +<a name="index-mepsilon"></a> +<a name="index-mno_002depsilon"></a> +</dd> +<dt><code>-mepsilon</code></dt> +<dt><code>-mno-epsilon</code></dt> +<dd><p>Generate floating-point comparison instructions that compare with respect +to the <code>rE</code> epsilon register. +</p> +<a name="index-mabi_003dmmixware"></a> +<a name="index-mabi_003dgnu"></a> +</dd> +<dt><code>-mabi=mmixware</code></dt> +<dt><code>-mabi=gnu</code></dt> +<dd><p>Generate code that passes function parameters and return values that (in +the called function) are seen as registers <code>$0</code> and up, as opposed to +the GNU ABI which uses global registers <code>$231</code> and up. +</p> +<a name="index-mzero_002dextend"></a> +<a name="index-mno_002dzero_002dextend"></a> +</dd> +<dt><code>-mzero-extend</code></dt> +<dt><code>-mno-zero-extend</code></dt> +<dd><p>When reading data from memory in sizes shorter than 64 bits, use (do not +use) zero-extending load instructions by default, rather than +sign-extending ones. +</p> +<a name="index-mknuthdiv"></a> +<a name="index-mno_002dknuthdiv"></a> +</dd> +<dt><code>-mknuthdiv</code></dt> +<dt><code>-mno-knuthdiv</code></dt> +<dd><p>Make the result of a division yielding a remainder have the same sign as +the divisor. With the default, <samp>-mno-knuthdiv</samp>, the sign of the +remainder follows the sign of the dividend. Both methods are +arithmetically valid, the latter being almost exclusively used. +</p> +<a name="index-mtoplevel_002dsymbols"></a> +<a name="index-mno_002dtoplevel_002dsymbols"></a> +</dd> +<dt><code>-mtoplevel-symbols</code></dt> +<dt><code>-mno-toplevel-symbols</code></dt> +<dd><p>Prepend (do not prepend) a ‘<samp>:</samp>’ to all global symbols, so the assembly +code can be used with the <code>PREFIX</code> assembly directive. +</p> +<a name="index-melf-1"></a> +</dd> +<dt><code>-melf</code></dt> +<dd><p>Generate an executable in the ELF format, rather than the default +‘<samp>mmo</samp>’ format used by the <code>mmix</code> simulator. +</p> +<a name="index-mbranch_002dpredict"></a> +<a name="index-mno_002dbranch_002dpredict"></a> +</dd> +<dt><code>-mbranch-predict</code></dt> +<dt><code>-mno-branch-predict</code></dt> +<dd><p>Use (do not use) the probable-branch instructions, when static branch +prediction indicates a probable branch. +</p> +<a name="index-mbase_002daddresses"></a> +<a name="index-mno_002dbase_002daddresses"></a> +</dd> +<dt><code>-mbase-addresses</code></dt> +<dt><code>-mno-base-addresses</code></dt> +<dd><p>Generate (do not generate) code that uses <em>base addresses</em>. Using a +base address automatically generates a request (handled by the assembler +and the linker) for a constant to be set up in a global register. The +register is used for one or more base address requests within the range 0 +to 255 from the value held in the register. The generally leads to short +and fast code, but the number of different data items that can be +addressed is limited. This means that a program that uses lots of static +data may require <samp>-mno-base-addresses</samp>. +</p> +<a name="index-msingle_002dexit"></a> +<a name="index-mno_002dsingle_002dexit"></a> +</dd> +<dt><code>-msingle-exit</code></dt> +<dt><code>-mno-single-exit</code></dt> +<dd><p>Force (do not force) generated code to have a single exit point in each +function. +</p></dd> +</dl> + +<hr> +<div class="header"> +<p> +Next: <a href="MN10300-Options.html#MN10300-Options" accesskey="n" rel="next">MN10300 Options</a>, Previous: <a href="MIPS-Options.html#MIPS-Options" accesskey="p" rel="previous">MIPS Options</a>, Up: <a href="Submodel-Options.html#Submodel-Options" accesskey="u" rel="up">Submodel Options</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p> +</div> + + + +</body> +</html> |