--- /dev/null
+/* 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 "udis86_types.h"
+#include "udis86_itab.h"
+
+#define MAX_INSN_LENGTH 15
+
+/* register classes */
+#define T_NONE 0
+#define T_GPR 1
+#define T_MMX 2
+#define T_CRG 3
+#define T_DBG 4
+#define T_SEG 5
+#define T_XMM 6
+
+/* itab prefix bits */
+#define P_none ( 0 )
+#define P_cast ( 1 << 0 )
+#define P_CAST(n) ( ( n >> 0 ) & 1 )
+#define P_c1 ( 1 << 0 )
+#define P_C1(n) ( ( n >> 0 ) & 1 )
+#define P_rexb ( 1 << 1 )
+#define P_REXB(n) ( ( n >> 1 ) & 1 )
+#define P_depM ( 1 << 2 )
+#define P_DEPM(n) ( ( n >> 2 ) & 1 )
+#define P_c3 ( 1 << 3 )
+#define P_C3(n) ( ( n >> 3 ) & 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_c2 ( 1 << 6 )
+#define P_C2(n) ( ( n >> 6 ) & 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_sext ( 1 << 14 )
+#define P_SEXT(n) ( ( n >> 14 ) & 1 )
+
+/* rex prefix bits */
+#define REX_W(r) ( ( 0xF & ( r ) ) >> 3 )
+#define REX_R(r) ( ( 0x7 & ( r ) ) >> 2 )
+#define REX_X(r) ( ( 0x3 & ( r ) ) >> 1 )
+#define REX_B(r) ( ( 0x1 & ( r ) ) >> 0 )
+#define REX_PFX_MASK(n) ( ( P_REXW(n) << 3 ) | \
+ ( P_REXR(n) << 2 ) | \
+ ( P_REXX(n) << 1 ) | \
+ ( P_REXB(n) << 0 ) )
+
+/* scable-index-base bits */
+#define SIB_S(b) ( ( b ) >> 6 )
+#define SIB_I(b) ( ( ( b ) >> 3 ) & 7 )
+#define SIB_B(b) ( ( b ) & 7 )
+
+/* modrm bits */
+#define MODRM_REG(b) ( ( ( b ) >> 3 ) & 7 )
+#define MODRM_NNN(b) ( ( ( b ) >> 3 ) & 7 )
+#define MODRM_MOD(b) ( ( ( b ) >> 6 ) & 3 )
+#define MODRM_RM(b) ( ( b ) & 7 )
+
+/* operand type constants -- order is important! */
+
+enum ud_operand_code {
+ OP_NONE,
+
+ OP_A, OP_E, OP_M, OP_G,
+ OP_I,
+
+ OP_AL, OP_CL, OP_DL, OP_BL,
+ OP_AH, OP_CH, OP_DH, OP_BH,
+
+ OP_ALr8b, OP_CLr9b, OP_DLr10b, OP_BLr11b,
+ OP_AHr12b, OP_CHr13b, OP_DHr14b, OP_BHr15b,
+
+ OP_AX, OP_CX, OP_DX, OP_BX,
+ OP_SI, OP_DI, OP_SP, OP_BP,
+
+ OP_rAX, OP_rCX, OP_rDX, OP_rBX,
+ OP_rSP, OP_rBP, OP_rSI, OP_rDI,
+
+ OP_rAXr8, OP_rCXr9, OP_rDXr10, OP_rBXr11,
+ OP_rSPr12, OP_rBPr13, OP_rSIr14, OP_rDIr15,
+
+ OP_eAX, OP_eCX, OP_eDX, OP_eBX,
+ OP_eSP, OP_eBP, OP_eSI, OP_eDI,
+
+ 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_V, OP_W, OP_Q, OP_P,
+
+ OP_R, OP_C, OP_D, OP_VR, OP_PR,
+
+ OP_MR
+} UD_ATTR_PACKED;
+
+
+/* operand size constants */
+
+enum ud_operand_size {
+ SZ_NA = 0,
+ SZ_Z = 1,
+ SZ_V = 2,
+ SZ_P = 3,
+ SZ_WP = 4,
+ SZ_DP = 5,
+ SZ_MDQ = 6,
+ 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_WV = 17,
+ SZ_BV = 18,
+ SZ_DY = 19
+
+} UD_ATTR_PACKED;
+
+
+/* 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 unsigned int sse_pfx_idx( const unsigned int pfx )
+{
+ /* 00 = 0
+ * f2 = 1
+ * f3 = 2
+ * 66 = 3
+ */
+ return ( ( pfx & 0xf ) + 1 ) / 2;
+}
+
+static inline unsigned int mode_idx( const unsigned int mode )
+{
+ /* 16 = 0
+ * 32 = 1
+ * 64 = 2
+ */
+ return ( mode / 32 );
+}
+
+static inline unsigned int modrm_mod_idx( const unsigned int mod )
+{
+ /* !11 = 0
+ * 11 = 1
+ */
+ return ( mod + 1 ) / 4;
+}
+
+static inline unsigned int vendor_idx( const unsigned int vendor )
+{
+ switch ( vendor ) {
+ case UD_VENDOR_AMD: return 0;
+ case UD_VENDOR_INTEL: return 1;
+ case UD_VENDOR_ANY: return 2;
+ default: return 2;
+ }
+}
+
+static inline unsigned int is_group_ptr( uint16_t ptr )
+{
+ return ( 0x8000 & ptr );
+}
+
+static inline unsigned int group_idx( uint16_t ptr )
+{
+ return ( ~0x8000 & ptr );
+}
+
+
+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
+ */
projects / apple / javascriptcore.git / blobdiff