/**
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* \file
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* CIL instruction information
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*
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* Author:
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* Paolo Molaro (lupus@ximian.com)
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*
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* Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
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* Copyright 2004-2009 Novell, Inc (http://www.novell.com)
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* Licensed under the MIT license. See LICENSE file in the project root for full license information.
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*/
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#include <mono/metadata/opcodes.h>
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#include <stddef.h> /* for NULL */
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#include <config.h>
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#define MONO_PREFIX1_OFFSET MONO_CEE_ARGLIST
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#define MONO_CUSTOM_PREFIX_OFFSET MONO_CEE_MONO_ICALL
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#define OPDEF(a,b,c,d,e,f,g,h,i,j) \
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{ Mono ## e, MONO_FLOW_ ## j, MONO_ ## a },
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const MonoOpcode
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mono_opcodes [MONO_CEE_LAST + 1] = {
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#include "mono/cil/opcode.def"
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{0}
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};
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#undef OPDEF
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#ifdef HAVE_ARRAY_ELEM_INIT
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#define MSGSTRFIELD(line) MSGSTRFIELD1(line)
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#define MSGSTRFIELD1(line) str##line
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static const struct msgstr_t {
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#define OPDEF(a,b,c,d,e,f,g,h,i,j) char MSGSTRFIELD(__LINE__) [sizeof (b)];
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#include "mono/cil/opcode.def"
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#undef OPDEF
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} opstr = {
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#define OPDEF(a,b,c,d,e,f,g,h,i,j) b,
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#include "mono/cil/opcode.def"
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#undef OPDEF
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};
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static const int16_t opidx [] = {
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#define OPDEF(a,b,c,d,e,f,g,h,i,j) [MONO_ ## a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
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#include "mono/cil/opcode.def"
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#undef OPDEF
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};
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/**
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* mono_opcode_name:
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*/
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const char*
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mono_opcode_name (int opcode)
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{
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return (const char*)&opstr + opidx [opcode];
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}
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#else
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#define OPDEF(a,b,c,d,e,f,g,h,i,j) b,
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static const char* const
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mono_opcode_names [MONO_CEE_LAST + 1] = {
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#include "mono/cil/opcode.def"
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NULL
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};
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const char*
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mono_opcode_name (int opcode)
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{
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return mono_opcode_names [opcode];
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}
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#endif
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MonoOpcodeEnum
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mono_opcode_value (const mono_byte **ip, const mono_byte *end)
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{
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MonoOpcodeEnum res;
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const mono_byte *p = *ip;
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if (p >= end)
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return (MonoOpcodeEnum)-1;
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if (*p == 0xfe) {
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++p;
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if (p >= end)
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return (MonoOpcodeEnum)-1;
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res = (MonoOpcodeEnum)(*p + MONO_PREFIX1_OFFSET);
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} else if (*p == MONO_CUSTOM_PREFIX) {
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++p;
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if (p >= end)
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return (MonoOpcodeEnum)-1;
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res = (MonoOpcodeEnum)(*p + MONO_CUSTOM_PREFIX_OFFSET);
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} else {
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res = (MonoOpcodeEnum)*p;
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}
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*ip = p;
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return res;
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}
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