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Diffstat (limited to 'src/3p/udis86/decode.h')
| -rw-r--r-- | src/3p/udis86/decode.h | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/src/3p/udis86/decode.h b/src/3p/udis86/decode.h new file mode 100644 index 0000000..3949c4e --- /dev/null +++ b/src/3p/udis86/decode.h @@ -0,0 +1,197 @@ +/* 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 "udint.h" +#include "itab.h" + +#define MAX_INSN_LENGTH 15 + +/* itab prefix bits */ +#define P_none ( 0 ) + +#define P_inv64 ( 1 << 0 ) +#define P_INV64(n) ( ( n >> 0 ) & 1 ) +#define P_def64 ( 1 << 1 ) +#define P_DEF64(n) ( ( n >> 1 ) & 1 ) + +#define P_oso ( 1 << 2 ) +#define P_OSO(n) ( ( n >> 2 ) & 1 ) +#define P_aso ( 1 << 3 ) +#define P_ASO(n) ( ( n >> 3 ) & 1 ) + +#define P_rexb ( 1 << 4 ) +#define P_REXB(n) ( ( n >> 4 ) & 1 ) +#define P_rexw ( 1 << 5 ) +#define P_REXW(n) ( ( n >> 5 ) & 1 ) +#define P_rexr ( 1 << 6 ) +#define P_REXR(n) ( ( n >> 6 ) & 1 ) +#define P_rexx ( 1 << 7 ) +#define P_REXX(n) ( ( n >> 7 ) & 1 ) + +#define P_seg ( 1 << 8 ) +#define P_SEG(n) ( ( n >> 8 ) & 1 ) + +#define P_vexl ( 1 << 9 ) +#define P_VEXL(n) ( ( n >> 9 ) & 1 ) +#define P_vexw ( 1 << 10 ) +#define P_VEXW(n) ( ( n >> 10 ) & 1 ) + +#define P_str ( 1 << 11 ) +#define P_STR(n) ( ( n >> 11 ) & 1 ) +#define P_strz ( 1 << 12 ) +#define P_STR_ZF(n) ( ( n >> 12 ) & 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_H, + OP_L, + + OP_R, OP_C, OP_D, + + OP_MR +} UD_ATTR_PACKED; + + +/* + * Operand size constants + * + * Symbolic constants for various operand sizes. Some of these constants + * are given a value equal to the width of the data (SZ_B == 8), such + * that they maybe used interchangeably in the internals. Modifying them + * will most certainly break things! + */ +typedef uint16_t ud_operand_size_t; + +#define SZ_NA 0 +#define SZ_Z 1 +#define SZ_V 2 +#define SZ_Y 3 +#define SZ_X 4 +#define SZ_RDQ 7 +#define SZ_B 8 +#define SZ_W 16 +#define SZ_D 32 +#define SZ_Q 64 +#define SZ_T 80 +#define SZ_O 12 +#define SZ_DQ 128 /* double quad */ +#define SZ_QQ 256 /* quad quad */ + +/* + * Complex size types; that encode sizes for operands of type MR (memory or + * register); for internal use only. Id space above 256. + */ +#define SZ_BD ((SZ_B << 8) | SZ_D) +#define SZ_BV ((SZ_B << 8) | SZ_V) +#define SZ_WD ((SZ_W << 8) | SZ_D) +#define SZ_WV ((SZ_W << 8) | SZ_V) +#define SZ_WY ((SZ_W << 8) | SZ_Y) +#define SZ_DY ((SZ_D << 8) | SZ_Y) +#define SZ_WO ((SZ_W << 8) | SZ_O) +#define SZ_DO ((SZ_D << 8) | SZ_O) +#define SZ_QO ((SZ_Q << 8) | SZ_O) + + +/* resolve complex size type. + */ +static UD_INLINE ud_operand_size_t +Mx_mem_size(ud_operand_size_t size) +{ + return (size >> 8) & 0xff; +} + +static UD_INLINE ud_operand_size_t +Mx_reg_size(ud_operand_size_t 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; + ud_operand_size_t 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; + struct ud_itab_entry_operand operand4; + uint32_t prefix; +}; + +struct ud_lookup_table_list_entry { + const uint16_t *table; + enum ud_table_type type; + const char *meta; +}; + +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 + */ |