1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<!-- Copyright (C) 1988-2021 Free Software Foundation, Inc. 4 5Permission is granted to copy, distribute and/or modify this document 6under the terms of the GNU Free Documentation License, Version 1.3 or 7any later version published by the Free Software Foundation; with the 8Invariant Sections being "Free Software" and "Free Software Needs 9Free Documentation", with the Front-Cover Texts being "A GNU Manual," 10and with the Back-Cover Texts as in (a) below. 11 12(a) The FSF's Back-Cover Text is: "You are free to copy and modify 13this GNU Manual. 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It should describe the following registers: 76</p> 77<ul class="no-bullet"> 78<li>- ‘<samp>eax</samp>’ through ‘<samp>edi</samp>’ plus ‘<samp>eip</samp>’ for i386 79</li><li>- ‘<samp>rax</samp>’ through ‘<samp>r15</samp>’ plus ‘<samp>rip</samp>’ for amd64 80</li><li>- ‘<samp>eflags</samp>’, ‘<samp>cs</samp>’, ‘<samp>ss</samp>’, ‘<samp>ds</samp>’, ‘<samp>es</samp>’, 81‘<samp>fs</samp>’, ‘<samp>gs</samp>’ 82</li><li>- ‘<samp>st0</samp>’ through ‘<samp>st7</samp>’ 83</li><li>- ‘<samp>fctrl</samp>’, ‘<samp>fstat</samp>’, ‘<samp>ftag</samp>’, ‘<samp>fiseg</samp>’, ‘<samp>fioff</samp>’, 84‘<samp>foseg</samp>’, ‘<samp>fooff</samp>’ and ‘<samp>fop</samp>’ 85</li></ul> 86 87<p>The register sets may be different, depending on the target. 88</p> 89<p>The ‘<samp>org.gnu.gdb.i386.sse</samp>’ feature is optional. It should 90describe registers: 91</p> 92<ul class="no-bullet"> 93<li>- ‘<samp>xmm0</samp>’ through ‘<samp>xmm7</samp>’ for i386 94</li><li>- ‘<samp>xmm0</samp>’ through ‘<samp>xmm15</samp>’ for amd64 95</li><li>- ‘<samp>mxcsr</samp>’ 96</li></ul> 97 98<p>The ‘<samp>org.gnu.gdb.i386.avx</samp>’ feature is optional and requires the 99‘<samp>org.gnu.gdb.i386.sse</samp>’ feature. It should 100describe the upper 128 bits of <small>YMM</small> registers: 101</p> 102<ul class="no-bullet"> 103<li>- ‘<samp>ymm0h</samp>’ through ‘<samp>ymm7h</samp>’ for i386 104</li><li>- ‘<samp>ymm0h</samp>’ through ‘<samp>ymm15h</samp>’ for amd64 105</li></ul> 106 107<p>The ‘<samp>org.gnu.gdb.i386.mpx</samp>’ is an optional feature representing Intel 108Memory Protection Extension (MPX). It should describe the following registers: 109</p> 110<ul class="no-bullet"> 111<li>- ‘<samp>bnd0raw</samp>’ through ‘<samp>bnd3raw</samp>’ for i386 and amd64. 112</li><li>- ‘<samp>bndcfgu</samp>’ and ‘<samp>bndstatus</samp>’ for i386 and amd64. 113</li></ul> 114 115<p>The ‘<samp>org.gnu.gdb.i386.linux</samp>’ feature is optional. It should 116describe a single register, ‘<samp>orig_eax</samp>’. 117</p> 118<p>The ‘<samp>org.gnu.gdb.i386.segments</samp>’ feature is optional. It should 119describe two system registers: ‘<samp>fs_base</samp>’ and ‘<samp>gs_base</samp>’. 120</p> 121<p>The ‘<samp>org.gnu.gdb.i386.avx512</samp>’ feature is optional and requires the 122‘<samp>org.gnu.gdb.i386.avx</samp>’ feature. It should 123describe additional <small>XMM</small> registers: 124</p> 125<ul class="no-bullet"> 126<li>- ‘<samp>xmm16h</samp>’ through ‘<samp>xmm31h</samp>’, only valid for amd64. 127</li></ul> 128 129<p>It should describe the upper 128 bits of additional <small>YMM</small> registers: 130</p> 131<ul class="no-bullet"> 132<li>- ‘<samp>ymm16h</samp>’ through ‘<samp>ymm31h</samp>’, only valid for amd64. 133</li></ul> 134 135<p>It should 136describe the upper 256 bits of <small>ZMM</small> registers: 137</p> 138<ul class="no-bullet"> 139<li>- ‘<samp>zmm0h</samp>’ through ‘<samp>zmm7h</samp>’ for i386. 140</li><li>- ‘<samp>zmm0h</samp>’ through ‘<samp>zmm15h</samp>’ for amd64. 141</li></ul> 142 143<p>It should 144describe the additional <small>ZMM</small> registers: 145</p> 146<ul class="no-bullet"> 147<li>- ‘<samp>zmm16h</samp>’ through ‘<samp>zmm31h</samp>’, only valid for amd64. 148</li></ul> 149 150<p>The ‘<samp>org.gnu.gdb.i386.pkeys</samp>’ feature is optional. It should 151describe a single register, ‘<samp>pkru</samp>’. It is a 32-bit register 152valid for i386 and amd64. 153</p> 154<hr> 155<div class="header"> 156<p> 157Next: <a href="MicroBlaze-Features.html#MicroBlaze-Features" accesskey="n" rel="next">MicroBlaze Features</a>, Previous: <a href="ARM-Features.html#ARM-Features" accesskey="p" rel="previous">ARM Features</a>, Up: <a href="Standard-Target-Features.html#Standard-Target-Features" accesskey="u" rel="up">Standard Target Features</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> 158</div> 159 160 161 162</body> 163</html> 164