#include <idc.idc>

static main()
{
    AddHotkey("Ctrl-Shift-J", "rename_j");
 
}

static rename_j ()
{
	
    auto func_start, func_end;
 		auto ea;
 		auto ea_inst;
 		auto instruction;
 		auto location;
 		auto new_jmp;
 		
 		Message("[*] Rename Jxx\n");
    Message("[*] Rename Jxx instructions to jxx_signed or jxx_unsigned\n");

    // we're about to start working.
    // change the status, make an announcement and disable dialogs.
   Message("[-] Scanning through database ... \n");

    
    
    // process the entire database.
    for (ea = NextFunction(MinEA()); ea != BADADDR; ea = NextNotTail(ea))
    {

				    // determine function start/end address.
				    func_start = GetFunctionAttr(ea, FUNCATTR_START);
				    func_end   = GetFunctionAttr(ea, FUNCATTR_END);
				    
					  // export the disassembly of the current function under ScreenEA().
				    for (ea_inst = func_start; ea_inst != func_end; ea_inst = NextNotTail(ea_inst))
				    {
				    		instruction = GetMnem(ea_inst);
				    		if(!strstr(instruction,"j") && strstr(instruction,"jmp"))
				    		{
				    					if( ((strstr(instruction, "g")   ||   // jump if greater than
											 strstr(instruction, "l")   ||   // jump if less than
											 strstr(instruction, "s")   ||   // jump if signed/unsigned
											 strstr(instruction, "o"))  &&   // jump if overflow
											!strstr(instruction, "jpo")) )    // jump if odd parity (this is an unsigned operation)
											{
													//get the location we are jumping to
													location = GetOpnd(ea_inst, 0);
													//create a new "instruction"
													new_jmp = form("%s_signed %s", instruction, location);
													//set this as a manual instruction
													SetManualInsn(ea_inst, new_jmp);   
												
											}
											else
											{
													location = GetOpnd(ea_inst, 0);
													new_jmp = form("%s_unsigned %s", instruction, location);
													SetManualInsn(ea_inst, new_jmp); 
												
											}
											
				    			
				    		}
				    		
				    
				    }
		}
   Message("[-] done. \n");

}