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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They may be 32-bit or 64-bit depending 77on the target. 78</p> 79<p>The ‘<samp>org.gnu.gdb.mips.cp0</samp>’ feature is also required. It should 80contain at least the ‘<samp>status</samp>’, ‘<samp>badvaddr</samp>’, and ‘<samp>cause</samp>’ 81registers. They may be 32-bit or 64-bit depending on the target. 82</p> 83<p>The ‘<samp>org.gnu.gdb.mips.fpu</samp>’ feature is currently required, though 84it may be optional in a future version of <small>GDB</small>. It should 85contain registers ‘<samp>f0</samp>’ through ‘<samp>f31</samp>’, ‘<samp>fcsr</samp>’, and 86‘<samp>fir</samp>’. They may be 32-bit or 64-bit depending on the target. 87</p> 88<p>The ‘<samp>org.gnu.gdb.mips.dsp</samp>’ feature is optional. It should 89contain registers ‘<samp>hi1</samp>’ through ‘<samp>hi3</samp>’, ‘<samp>lo1</samp>’ through 90‘<samp>lo3</samp>’, and ‘<samp>dspctl</samp>’. The ‘<samp>dspctl</samp>’ register should 91be 32-bit and the rest may be 32-bit or 64-bit depending on the target. 92</p> 93<p>The ‘<samp>org.gnu.gdb.mips.linux</samp>’ feature is optional. It should 94contain a single register, ‘<samp>restart</samp>’, which is used by the 95Linux kernel to control restartable syscalls. 96</p> 97 98 99 100</body> 101</html> 102