| /* udis86 - libudis86/decode.h |
| * |
| * Copyright (c) 2002-2009 Vivek Thampi |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * * Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef UD_DECODE_H |
| #define UD_DECODE_H |
| |
| #include "types.h" |
| #include "itab.h" |
| |
| #define MAX_INSN_LENGTH 15 |
| |
| /* itab prefix bits */ |
| #define P_none ( 0 ) |
| #define P_cast ( 1 << 0 ) |
| #define P_CAST(n) ( ( n >> 0 ) & 1 ) |
| #define P_rexb ( 1 << 1 ) |
| #define P_REXB(n) ( ( n >> 1 ) & 1 ) |
| #define P_inv64 ( 1 << 4 ) |
| #define P_INV64(n) ( ( n >> 4 ) & 1 ) |
| #define P_rexw ( 1 << 5 ) |
| #define P_REXW(n) ( ( n >> 5 ) & 1 ) |
| #define P_def64 ( 1 << 7 ) |
| #define P_DEF64(n) ( ( n >> 7 ) & 1 ) |
| #define P_rexr ( 1 << 8 ) |
| #define P_REXR(n) ( ( n >> 8 ) & 1 ) |
| #define P_oso ( 1 << 9 ) |
| #define P_OSO(n) ( ( n >> 9 ) & 1 ) |
| #define P_aso ( 1 << 10 ) |
| #define P_ASO(n) ( ( n >> 10 ) & 1 ) |
| #define P_rexx ( 1 << 11 ) |
| #define P_REXX(n) ( ( n >> 11 ) & 1 ) |
| #define P_ImpAddr ( 1 << 12 ) |
| #define P_IMPADDR(n) ( ( n >> 12 ) & 1 ) |
| #define P_seg ( 1 << 13 ) |
| #define P_SEG(n) ( ( n >> 13 ) & 1 ) |
| #define P_str ( 1 << 14 ) |
| #define P_STR(n) ( ( n >> 14 ) & 1 ) |
| #define P_strz ( 1 << 15 ) |
| #define P_STR_ZF(n) ( ( n >> 15 ) & 1 ) |
| |
| /* operand type constants -- order is important! */ |
| |
| enum ud_operand_code { |
| OP_NONE, |
| |
| OP_A, OP_E, OP_M, OP_G, |
| OP_I, OP_F, |
| |
| OP_R0, OP_R1, OP_R2, OP_R3, |
| OP_R4, OP_R5, OP_R6, OP_R7, |
| |
| OP_AL, OP_CL, OP_DL, |
| OP_AX, OP_CX, OP_DX, |
| OP_eAX, OP_eCX, OP_eDX, |
| OP_rAX, OP_rCX, OP_rDX, |
| |
| OP_ES, OP_CS, OP_SS, OP_DS, |
| OP_FS, OP_GS, |
| |
| OP_ST0, OP_ST1, OP_ST2, OP_ST3, |
| OP_ST4, OP_ST5, OP_ST6, OP_ST7, |
| |
| OP_J, OP_S, OP_O, |
| OP_I1, OP_I3, OP_sI, |
| |
| OP_V, OP_W, OP_Q, OP_P, |
| OP_U, OP_N, OP_MU, |
| |
| OP_R, OP_C, OP_D, |
| |
| OP_MR |
| } UD_ATTR_PACKED; |
| |
| |
| /* operand size constants */ |
| |
| enum ud_operand_size { |
| SZ_NA = 0, |
| SZ_Z = 1, |
| SZ_V = 2, |
| SZ_RDQ = 7, |
| |
| /* the following values are used as is, |
| * and thus hard-coded. changing them |
| * will break internals |
| */ |
| SZ_B = 8, |
| SZ_W = 16, |
| SZ_D = 32, |
| SZ_Q = 64, |
| SZ_T = 80, |
| SZ_O = 128, |
| |
| SZ_Y = 17, |
| |
| /* |
| * complex size types, that encode sizes for operands |
| * of type MR (memory or register), for internal use |
| * only. Id space 256 and above. |
| */ |
| SZ_BD = (SZ_B << 8) | SZ_D, |
| SZ_BV = (SZ_B << 8) | SZ_V, |
| SZ_WD = (SZ_W << 8) | SZ_D, |
| SZ_WV = (SZ_W << 8) | SZ_V, |
| SZ_WY = (SZ_W << 8) | SZ_Y, |
| SZ_DY = (SZ_D << 8) | SZ_Y, |
| SZ_WO = (SZ_W << 8) | SZ_O, |
| SZ_DO = (SZ_D << 8) | SZ_O, |
| SZ_QO = (SZ_Q << 8) | SZ_O, |
| |
| } UD_ATTR_PACKED; |
| |
| |
| /* resolve complex size type. |
| */ |
| static inline enum ud_operand_size |
| Mx_mem_size(enum ud_operand_size size) |
| { |
| return (size >> 8) & 0xff; |
| } |
| |
| static inline enum ud_operand_size |
| Mx_reg_size(enum ud_operand_size size) |
| { |
| return size & 0xff; |
| } |
| |
| /* A single operand of an entry in the instruction table. |
| * (internal use only) |
| */ |
| struct ud_itab_entry_operand |
| { |
| enum ud_operand_code type; |
| enum ud_operand_size size; |
| }; |
| |
| |
| /* A single entry in an instruction table. |
| *(internal use only) |
| */ |
| struct ud_itab_entry |
| { |
| enum ud_mnemonic_code mnemonic; |
| struct ud_itab_entry_operand operand1; |
| struct ud_itab_entry_operand operand2; |
| struct ud_itab_entry_operand operand3; |
| uint32_t prefix; |
| }; |
| |
| struct ud_lookup_table_list_entry { |
| const uint16_t *table; |
| enum ud_table_type type; |
| const char *meta; |
| }; |
| |
| |
| |
| static inline int |
| ud_opcode_field_sext(uint8_t primary_opcode) |
| { |
| return (primary_opcode & 0x02) != 0; |
| } |
| |
| extern struct ud_itab_entry ud_itab[]; |
| extern struct ud_lookup_table_list_entry ud_lookup_table_list[]; |
| |
| #endif /* UD_DECODE_H */ |
| |
| /* vim:cindent |
| * vim:expandtab |
| * vim:ts=4 |
| * vim:sw=4 |
| */ |