(* Capstone Disassembly Engine
* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2014 *)

open Printf
open Capstone
open Mips


let print_string_hex comment str =
	printf "%s" comment;
	for i = 0 to (Array.length str - 1) do
		printf "0x%02x " str.(i)
	done;
	printf "\n"


let _MIPS_CODE  = "\x0C\x10\x00\x97\x00\x00\x00\x00\x24\x02\x00\x0c\x8f\xa2\x00\x00\x34\x21\x34\x56";;
let _MIPS_CODE2 = "\x56\x34\x21\x34\xc2\x17\x01\x00";;

let all_tests = [
	(CS_ARCH_MIPS, [CS_MODE_MIPS32; CS_MODE_BIG_ENDIAN], _MIPS_CODE, "MIPS-32 (Big-endian)");
	(CS_ARCH_MIPS, [CS_MODE_MIPS64; CS_MODE_LITTLE_ENDIAN], _MIPS_CODE2, "MIPS-64-EL (Little-endian)");
];;

let print_op handle i op =
	( match op.value with
	| MIPS_OP_INVALID _ -> ();	(* this would never happens *)
	| MIPS_OP_REG reg -> printf "\t\top[%d]: REG = %s\n" i (cs_reg_name handle reg);
	| MIPS_OP_IMM imm -> printf "\t\top[%d]: IMM = 0x%x\n" i imm;
	| MIPS_OP_MEM mem -> ( printf "\t\top[%d]: MEM\n" i;
		if mem.base != 0 then
			printf "\t\t\toperands[%u].mem.base: REG = %s\n" i (cs_reg_name handle mem.base);
		if mem.disp != 0 then
			printf "\t\t\toperands[%u].mem.disp: 0x%x\n" i mem.disp;
		);
	);
	();;


let print_detail handle insn =
	match insn.arch with
	| CS_INFO_MIPS mips -> (
			(* print all operands info (type & value) *)
			if (Array.length mips.operands) > 0 then (
				printf "\top_count: %d\n" (Array.length mips.operands);
				Array.iteri (print_op handle) mips.operands;
			);
			printf "\n";
		);
	| _ -> ();
	;;


let print_insn handle insn =
	printf "0x%x\t%s\t%s\n" insn.address insn.mnemonic insn.op_str;
	print_detail handle insn


let print_arch x =
	let (arch, mode, code, comment) = x in
		let handle = cs_open arch mode in
		let err = cs_option handle CS_OPT_DETAIL _CS_OPT_ON in
		match err with
		| _ -> ();
		let insns = cs_disasm handle code 0x1000L 0L in
			printf "*************\n";
			printf "Platform: %s\n" comment;
			List.iter (print_insn handle) insns;
		match cs_close handle with
		| 0 -> ();
		| _ -> printf "Failed to close handle";
		;;


List.iter print_arch all_tests;;