Import encoding implementation from @AngelDev06

Mapping.c

@@ -219,6 +219,18 @@ void map_groups(MCInst *MI, const insn_map *imap)
 #endif // CAPSTONE_DIET
 }
 
+/// Copies the opcode encoding info from @imap to @MI->flat_insn.
+void map_opcode_encoding(MCInst *MI, const insn_map *imap)
+{
+#ifndef CAPSTONE_DIET
+	if (!MI->flat_insn->detail)
+		return;
+
+	unsigned Opcode = MCInst_getOpcode(MI);
+	MI->flat_insn->detail->opcode_encoding = imap[Opcode].opcode_encoding;
+#endif
+}
+
 // Search for the CS instruction id for the given @MC_Opcode in @imap.
 // return -1 if none is found.
 unsigned int find_cs_id(unsigned MC_Opcode, const insn_map *imap,
@@ -298,6 +310,18 @@ const cs_ac_type mapping_get_op_access(MCInst *MI, unsigned OpNum,
 	return access;
 }
 
+const cs_operand_encoding
+mapping_get_op_encoding(MCInst *MI, unsigned OpNum,
+						const map_insn_ops *insn_ops_map, size_t map_size)
+{
+	assert(MI);
+	assert(MI->Opcode < map_size);
+	assert(OpNum < sizeof(insn_ops_map[MI->Opcode].ops) /
+					   sizeof(insn_ops_map[MI->Opcode].ops[0]));
+
+	return insn_ops_map[MI->Opcode].ops[OpNum].encoding;
+}
+
 /// Returns the operand at detail->arch.operands[op_count + offset]
 /// Or NULL if detail is not set.
 #define DEFINE_get_detail_op(arch, ARCH) \

Mapping.h

@@ -31,6 +31,7 @@ typedef struct insn_map {
 	union {
 		ppc_suppl_info ppc;
 	} suppl_info; // Supplementary information for each instruction.
+	cs_opcode_encoding opcode_encoding; // the opcode encoding info of the instruction
 #endif
 } insn_map;
 
@@ -51,6 +52,7 @@ typedef struct {
 	uint8_t				 /* cs_data_type */
 		dtypes[MAX_NO_DATA_TYPES]; ///< List of op types. Terminated by
 					   ///< CS_DATA_TYPE_LAST
+	cs_operand_encoding encoding; ///< The encoding of the operand
 } mapping_op;
 
 #define MAX_NO_INSN_MAP_OPS 16
@@ -71,6 +73,10 @@ const cs_ac_type mapping_get_op_access(MCInst *MI, unsigned OpNum,
 				       const map_insn_ops *insn_ops_map,
 				       size_t map_size);
 
+const cs_operand_encoding
+mapping_get_op_encoding(MCInst *MI, unsigned OpNum,
+						const map_insn_ops *insn_ops_map, size_t map_size);
+
 /// Macro for easier access of operand types from the map.
 /// Assumes the istruction operands map is called "insn_operands"
 /// Only usable by `auto-sync` archs!
@@ -86,6 +92,10 @@ const cs_ac_type mapping_get_op_access(MCInst *MI, unsigned OpNum,
 			      sizeof(insn_operands) / \
 				      sizeof(insn_operands[0]))
 
+#define map_get_op_encoding(MI, OpNum)                                         \
+	mapping_get_op_encoding(MI, OpNum, insn_operands,                          \
+							sizeof(insn_operands) / sizeof(insn_operands[0]))
+
 ///< Map for ids to their string
 typedef struct name_map {
 	unsigned int id;
@@ -112,6 +122,8 @@ void add_group(MCInst *MI, unsigned /* arch_group */ group);
 
 void map_groups(MCInst *MI, const insn_map *imap);
 
+void map_opcode_encoding(MCInst *MI, const insn_map *imap);
+
 void map_cs_id(MCInst *MI, const insn_map *imap, unsigned int imap_size);
 
 #define DECL_get_detail_op(arch, ARCH) \
@@ -206,4 +218,4 @@ bool map_use_alias_details(const MCInst *MI);
 
 void map_set_alias_id(MCInst *MI, const SStream *O, const name_map *alias_mnem_id_map, int map_size);
 
-#endif // CS_MAPPING_H
+#endif // CS_MAPPING_H