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https://github.com/netwide-assembler/nasm.git
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2469b8b66e
Add a {rex} prefix to force REX encoding (typically a redundant 40h
prefix).
For prefix parsing, we can use t_inttwo to encode the prefix slot
number.
Give more verbose error messages for encoding mismatches.
66 lines
2.5 KiB
C
66 lines
2.5 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 1996-2021 The NASM Authors - All Rights Reserved
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* See the file AUTHORS included with the NASM distribution for
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* the specific copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following
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* conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ----------------------------------------------------------------------- */
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/*
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* common.c - code common to nasm and ndisasm
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*/
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#include "compiler.h"
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#include "nasm.h"
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#include "nasmlib.h"
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#include "insns.h"
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/*
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* The current bit size of the CPU
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*/
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int globalbits = 0;
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/*
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* Common list of prefix names; ideally should be auto-generated
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* from tokens.dat. This MUST match the enum in include/nasm.h.
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*/
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const char *prefix_name(int token)
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{
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static const char *prefix_names[] = {
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"a16", "a32", "a64", "asp", "lock", "o16", "o32", "o64", "osp",
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"rep", "repe", "repne", "repnz", "repz", "times", "wait",
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"xacquire", "xrelease", "bnd", "nobnd", "{rex}", "{evex}", "{vex}",
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"{vex3}", "{vex2}"
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};
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unsigned int prefix = token-PREFIX_ENUM_START;
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if (prefix >= ARRAY_SIZE(prefix_names))
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return NULL;
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return prefix_names[prefix];
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}
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