QEMU源代码，二进制翻译工具

/* This file is composed of several different files from the upstream sourceware.org CVS. Original file boundaries marked with **** */ #include <string.h> #include <math.h> #include <stdio.h> #include "dis-asm.h" /* **** foatformat.h from sourceware.org CVS 2005-08-14. */ /* IEEE floating point support declarations, for GDB, the GNU Debugger. Copyright 1991, 1994, 1995, 1997, 2000, 2003 Free Software Foundation, Inc. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ #if !defined (FLOATFORMAT_H) #define FLOATFORMAT_H 1 /*#include "ansidecl.h" */ /* A floatformat consists of a sign bit, an exponent and a mantissa. Once the bytes are concatenated according to the byteorder flag, then each of those fields is contiguous. We number the bits with 0 being the most significant (i.e. BITS_BIG_ENDIAN type numbering), and specify which bits each field contains with the *_start and *_len fields. */ /* What is the order of the bytes. */ enum floatformat_byteorders { /* Standard little endian byte order. EX: 1.2345678e10 => 00 00 80 c5 e0 fe 06 42 */ floatformat_little, /* Standard big endian byte order. EX: 1.2345678e10 => 42 06 fe e0 c5 80 00 00 */ floatformat_big, /* Little endian byte order but big endian word order. EX: 1.2345678e10 => e0 fe 06 42 00 00 80 c5 */ floatformat_littlebyte_bigword }; enum floatformat_intbit { floatformat_intbit_yes, floatformat_intbit_no }; struct floatformat { enum floatformat_byteorders byteorder; unsigned int totalsize; /* Total size of number in bits */ /* Sign bit is always one bit long. 1 means negative, 0 means positive. */ unsigned int sign_start; unsigned int exp_start; unsigned int exp_len; /* Bias added to a "true" exponent to form the biased exponent. It is intentionally signed as, otherwize, -exp_bias can turn into a very large number (e.g., given the exp_bias of 0x3fff and a 64 bit long, the equation (long)(1 - exp_bias) evaluates to 4294950914) instead of -16382). */ int exp_bias; /* Exponent value which indicates NaN. This is the actual value stored in the float, not adjusted by the exp_bias. This usually consists of all one bits. */ unsigned int exp_nan; unsigned int man_start; unsigned int man_len; /* Is the integer bit explicit or implicit? */ enum floatformat_intbit intbit; /* Internal name for debugging. */ const char *name; /* Validator method. */ int (*is_valid) (const struct floatformat *fmt, const char *from); }; /* floatformats for IEEE single and double, big and little endian. */ extern const struct floatformat floatformat_ieee_single_big; extern const struct floatformat floatformat_ieee_single_little; extern const struct floatformat floatformat_ieee_double_big; extern const struct floatformat floatformat_ieee_double_little; /* floatformat for ARM IEEE double, little endian bytes and big endian words */ extern const struct floatformat floatformat_ieee_double_littlebyte_bigword; /* floatformats for various extendeds. */ extern const struct floatformat floatformat_i387_ext; extern const struct floatformat floatformat_m68881_ext; extern const struct floatformat floatformat_i960_ext; extern const struct floatformat floatformat_m88110_ext; extern const struct floatformat floatformat_m88110_harris_ext; extern const struct floatformat floatformat_arm_ext_big; extern const struct floatformat floatformat_arm_ext_littlebyte_bigword; /* IA-64 Floating Point register spilt into memory. */ extern const struct floatformat floatformat_ia64_spill_big; extern const struct floatformat floatformat_ia64_spill_little; extern const struct floatformat floatformat_ia64_quad_big; extern const struct floatformat floatformat_ia64_quad_little; /* Convert from FMT to a double. FROM is the address of the extended float. Store the double in *TO. */ extern void floatformat_to_double (const struct floatformat *, const char *, double *); /* The converse: convert the double *FROM to FMT and store where TO points. */ extern void floatformat_from_double (const struct floatformat *, const double *, char *); /* Return non-zero iff the data at FROM is a valid number in format FMT. */ extern int floatformat_is_valid (const struct floatformat *fmt, const char *from); #endif /* defined (FLOATFORMAT_H) */ /* **** End of floatformat.h */ /* **** m68k-dis.h from sourceware.org CVS 2005-08-14. */ /* Opcode table header for m680[01234]0/m6888[12]/m68851. Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2001, 2003, 2004 Free Software Foundation, Inc. This file is part of GDB, GAS, and the GNU binutils. GDB, GAS, and the GNU binutils are free software; you can redistribute them and/or modify them under the terms of the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version. GDB, GAS, and the GNU binutils are distributed in the hope that they will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this file; see the file COPYING. If not, write to the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ /* These are used as bit flags for the arch field in the m68k_opcode structure. */ #define _m68k_undef 0 #define m68000 0x001 #define m68008 m68000 /* Synonym for -m68000. otherwise unused. */ #define m68010 0x002 #define m68020 0x004 #define m68030 0x008 #define m68ec030 m68030 /* Similar enough to -m68030 to ignore differences; gas will deal with the few differences. */ #define m68040 0x010 /* There is no 68050. */ #define m68060 0x020 #define m68881 0x040 #define m68882 m68881 /* Synonym for -m68881. otherwise unused. */ #define m68851 0x080 #define cpu32 0x100 /* e.g., 68332 */ #define mcfmac 0x200 /* ColdFire MAC. */ #define mcfemac 0x400 /* ColdFire EMAC. */ #define cfloat 0x800 /* ColdFire FPU. */ #define mcfhwdiv 0x1000 /* ColdFire hardware divide. */ #define mcfisa_a 0x2000 /* ColdFire ISA_A. */ #define mcfisa_aa 0x4000 /* ColdFire ISA_A+. */ #define mcfisa_b 0x8000 /* ColdFire ISA_B. */ #define mcfusp 0x10000 /* ColdFire USP instructions. */ #define mcf5200 0x20000 #define mcf5206e 0x40000 #define mcf521x 0x80000 #define mcf5249 0x100000 #define mcf528x 0x200000 #define mcf5307 0x400000 #define mcf5407 0x800000 #define mcf5470 0x1000000 #define mcf5480 0x2000000 /* Handy aliases. */ #define m68040up (m68040 | m68060) #define m68030up (m68030 | m68040up) #define m68020up (m68020 | m68030up) #define m68010up (m68010 | cpu32 | m68020up) #define m68000up (m68000 | m68010up) #define mfloat (m68881 | m68882 | m68040 | m68060) #define mmmu (m68851 | m68030 | m68040 | m68060) /* The structure used to hold information for an opcode. */ struct m68k_opcode { /* The opcode name. */ const char *name; /* The pseudo-size of the instruction(in bytes). Used to determine number of bytes necessary to disassemble the instruction. */ unsigned int size; /* Th