Subject: Adding all the source code of nghdl

Description: Adding all the source code of nghdl

1 files changed, 750 insertions, 0 deletions

diff --git a/src/model_generation.py b/src/model_generation.py
new file mode 100755
index 0000000..d21de69
--- /dev/null
+++ b/src/model_generation.py
@@ -0,0 +1,750 @@
+#!/usr/bin/env python
+
+"""#!/usr/bin/python """
+import re
+import sys
+import os
+
+#######Script start from here
+print "Arguement is :", sys.argv[1]
+fname = os.path.basename(sys.argv[1])
+print "VHDL filename is :",fname
+home = os.path.expanduser("~")
+###########Creating connection_info.txt file from vhdl file#####################
+read_vhdl = open(sys.argv[1],'r')
+vhdl_data = read_vhdl.readlines()
+read_vhdl.close()
+
+start_flag = -1 #Used for scaning part of data
+scan_data=[]
+#p=re.search('port(.*?)end',read_vhdl,re.M|re.I|re.DOTALL).group()
+
+for item in vhdl_data:
+    if re.search('port',item,re.I):
+        start_flag = 1
+        
+    elif re.search("end",item,re.I):
+        start_flag = 0
+    else:
+        pass
+
+    if start_flag == 1:
+        item=re.sub("port", " ", item, flags=re.I)
+        item=re.sub("\(", " ", item, flags=re.I)
+        item=re.sub("\)", " ", item, flags=re.I)
+        item=re.sub(";"," ",item,flags=re.I)
+        
+        scan_data.append(item.rstrip())
+        scan_data=filter(None, scan_data)
+    elif start_flag == 0:
+        break
+    
+#print "Scan Data",scan_data
+port_info=[]
+
+for item in scan_data:
+    print "Scan Data :",item
+    if re.search("in",item,flags=re.I):
+        if re.search("std_logic_vector",item,flags=re.I):
+            temp=re.compile(r"\s*std_logic_vector\s*",flags=re.I)
+        elif re.search("std_logic",item,flags=re.I):
+            temp=re.compile(r"\s*std_logic\s*",flags=re.I)
+        else:
+            print "Please check your vhdl code for datatype of input port"
+            sys.exit()
+    elif re.search("out",item,flags=re.I):
+        if re.search("std_logic_vector",item,flags=re.I):                                                                                      
+            temp=re.compile(r"\s*std_logic_vector\s*",flags=re.I)                                                               
+        elif re.search("std_logic",item,flags=re.I):                                                                                           
+            temp=re.compile(r"\s*std_logic\s*",flags=re.I)                                                                      
+        else:                                                                                                                                  
+            print "Please check your vhdl code for datatype of output port"
+            sys.exit()
+    else:
+        print "Please check the in/out direction of your port"
+        sys.exit()
+        
+    lhs=temp.split(item)[0]
+    rhs=temp.split(item)[1]
+    bit_info=re.compile(r"\s*downto\s*",flags=re.I).split(rhs)[0]
+    port_info.append(lhs+":"+str(int(bit_info)+int(1)))
+
+print "Port Info :",port_info
+
+#Open connection_info.txt file 
+
+con_ifo=open('connection_info.txt','w')
+
+for item in port_info:
+    word=item.split(':')
+    con_ifo.write(word[0].strip()+' '+word[1].strip()+' '+word[2].strip())
+    con_ifo.write("\n")
+con_ifo.close()
+############### Reading connection/port information#############################
+
+#Declaring input and output list
+input_list=[]
+output_list=[]
+
+#Reading connection_info.txt file for port infomation
+read_file=open('connection_info.txt','r')
+data=read_file.readlines()
+read_file.close()
+
+#Extracting input and output port list from data
+for line in data:
+    if re.match(r'^\s*$', line):
+        pass
+        #print "Blank Line"
+    else:
+        in_items=re.findall("IN",line,re.MULTILINE|re.IGNORECASE)
+        out_items=re.findall("OUT",line,re.MULTILINE|re.IGNORECASE)
+        #print "Line",line
+        if in_items:
+            input_list.append(line.split())
+            #print "Found IN"
+        else:
+            pass
+            #print "Not Found"
+        
+        if out_items:
+            output_list.append(line.split())
+            #print "Found Out"
+        else:
+            pass
+
+print "Inout List :",input_list
+print "Output list",output_list
+input_port=[]
+output_port=[]
+#creating list of input and output port with its weight 
+for input in input_list:
+    input_port.append(input[0]+":"+input[2])
+    #print "Input List: ",input
+for output in output_list:
+    output_port.append(output[0]+":"+output[2])
+    #print "Output List: ",output
+
+print "Output Port List : ",output_port
+print "Input Port List : ",input_port
+
+######################Creating content for cfunc.mod file#######################
+print "Starting With cfunc.mod file"
+cfunc=open('cfunc.mod','w')
+
+print "Building content for cfunc.mod file"
+
+comment='''/* This is cfunc.mod file auto generated by gen_con_info.py
+Developed by Fahim at IIT Bombay */ \n 
+        '''
+
+header='''
+#include <stdio.h>                                                                                                                             
+#include <math.h>                                                                                                                              
+#include <string.h>                                                                                                                            
+#include <time.h>                                                                                                                              
+#include <sys/socket.h>                                                                                                                        
+#include <sys/types.h>                                                                                                                         
+#include <netinet/in.h>                                                                                                                        
+#include <netdb.h>                                                                                                                             
+#include <stdlib.h>                                                                                                                            
+#include <unistd.h>                                                                                                                            
+#include <errno.h> 
+'''
+
+function_open='''void cm_'''+fname.split('.')[0]+'''(ARGS) \n{'''
+
+digital_state_output=[]
+for item in output_port:
+    digital_state_output.append("Digital_State_t *_op_"+item.split(':')[0]+", *_op_"+item.split(':')[0]+"_old;")
+
+
+var_section='''
+    // Declaring components of Client                                                                                                          
+    static int flag=0;                                                                                                                         
+    FILE *log_client = NULL;                                                                                                                   
+    log_client=fopen("client.log","a");                                                                                                        
+    int socket_fd, bytes_recieved;                                                                                                             
+    char send_data[1024];                                                                                                                      
+    char recv_data[1024];                                                                                                                      
+    struct hostent *host;                                                                                                                      
+    struct sockaddr_in server_addr;                                                                                                            
+    double time_limit = PARAM(stop_time);   
+'''
+temp_input_var=[]
+for item in input_port:
+    temp_input_var.append("char temp_"+item.split(':')[0]+"[1024];")
+
+#Start of INIT function 
+init_start_function='''
+    if(INIT)
+    {
+        /* Allocate storage for output ports.And set the load for input ports */
+'''
+  
+cm_event_alloc=[]
+cm_count_output=0
+for item in output_port:
+   cm_event_alloc.append("cm_event_alloc("+str(cm_count_output)+","+item.split(':')[1]+"*sizeof(Digital_State_t));")
+   cm_count_output=cm_count_output+1
+
+load_in_port=[]
+for item in input_port:
+    load_in_port.append("for(Ii=0;Ii<PORT_SIZE("+item.split(':')[0]+");Ii++)\n\t\t{\n\t\t\tLOAD("+item.split(':')[0]+"[Ii])=PARAM(input_load); \n\t\t}")
+
+cm_count_ptr=0
+cm_event_get_ptr=[]
+for item in output_port:
+    cm_event_get_ptr.append("_op_"+item.split(':')[0]+" = _op_"+item.split(':')[0]+"_old = (Digital_State_t *) cm_event_get_ptr("+str(cm_count_ptr)+",0);")
+    cm_count_ptr=cm_count_ptr+1
+
+systime_info='''
+        /*Taking system time info for log */                                                                                                   
+        time_t systime;                                                                                                                        
+        systime = time(NULL);                                                                                                                  
+        printf(ctime(&systime));                                                                                                               
+        printf("Client-Initialising ngspice \\n");                                                                                              
+        fprintf(log_client,"Setup Client Server Connection at %s \\n",ctime(&systime));                                                         
+'''
+
+init_else='''
+        printf("Client-Inside else of INIT \\n");                                                                                               
+        fprintf(log_client,"Inside else of INIT \\n");                                                                                          
+        /*  retrieve storage for output ports. */
+'''
+
+els_evt_count1=0
+els_evt_count2=0
+els_evt_ptr=[]
+for item in output_port:
+    els_evt_ptr.append("_op_"+item.split(":")[0]+" = cm_event_get_ptr("+str(els_evt_count1)+","+str(els_evt_count2)+");")
+    els_evt_count2=els_evt_count2+1
+    els_evt_ptr.append("_op_"+item.split(":")[0]+"_old"+" = cm_event_get_ptr("+str(els_evt_count1)+","+str(els_evt_count2)+");")
+    els_evt_count1=els_evt_count1+1
+
+
+client_setup='''
+        /* Client setup */                                                                                                                     
+        //Default hostname assignment                                                                                                          
+        host = gethostbyname("127.0.0.1");                                                                                                     
+        printf("Client-Creating Client Socket \\n");                                                                                             
+        fprintf(log_client,"Creating client socket \\n"); 
+'''
+create_socket='''
+        //Creating socket for client                                                                                                           
+        if ((socket_fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)                                                                               
+        {                                                                                                                                      
+            perror("Client-Error while creating client Socket \\n");                                                                             
+            fprintf(log_client,"Error while creating client sockte \\n");                                                                        
+            exit(1);                                                                                                                           
+        }                                                                                                                                      
+                                                                                                                                                              
+        printf("Client-Client Socket created successfully \\n");                                                                                 
+        printf("Client- Socket Id : %d \\n",socket_fd);                                                                                         
+        fprintf(log_client,"Client-Client Socket created successfully \\n");                                                                     
+        fprintf(log_client,"Client- Socket Id : %d \\n",socket_fd);                                                                             
+
+        // memset(&server_addr, 0, sizeof(server_addr));                                                                                       
+        server_addr.sin_family = AF_INET;                                                                                                      
+        server_addr.sin_port = htons(5000);                                                                                                    
+        server_addr.sin_addr = *((struct in_addr *)host->h_addr);                                                                              
+        bzero(&(server_addr.sin_zero),8);                                                                                                      
+
+'''
+
+connect_server='''
+        printf("Client-Connecting to server \\n");                                                                                              
+        fprintf(log_client,"Client-Connecting to server \\n");                                                                                  
+        //Conneting to server                                                                                                                  
+
+        int try_limit=10;                                                                                                                      
+        while(try_limit>0)                                                                                                                     
+        {                                                                                                                                      
+            if (connect(socket_fd, (struct sockaddr*)&server_addr,sizeof(struct sockaddr)) == -1)                                              
+            {                                                                                                                                  
+                sleep(1);                                                                                                                      
+                try_limit--;                                                                                                                   
+                if(try_limit==0)                                                                                                               
+                {                                                                                                                              
+                    fprintf(stderr,"Connect- Error:Tried to connect server on port , failed..giving up \\n");                                   
+                    fprintf(log_client,"Connect- Error:Tried to connect server on port , failed..giving up \\n");                               
+                    exit(1);                                                                                                                   
+                }                                                                                                                              
+            }                                                                                                                                
+            else                                                                                                                               
+            {                                                                                                                                  
+                printf("Client-Connected to server \\n");                                                                                       
+                fprintf(log_client,"Client-Connected to server \\n");                                                                           
+                break;                                                                                                                         
+            }                                                                                                                                  
+        } 
+
+'''
+
+time_limit ='''
+        if(TIME < time_limit)                                                                                                                  
+        {                                                                                                                                      
+            //Formating data for sending it to client
+            int Ii;
+
+'''
+#Assign bit value to every input
+assign_data_to_input=[]
+for item in input_port:
+    assign_data_to_input.append("\t\t\tfor(Ii=0;Ii<PORT_SIZE("+item.split(':')[0]+");Ii++)\n\
+\t\t\t{\n\t\t\t\tif( INPUT_STATE("+item.split(':')[0]+"[Ii])==ZERO )\n\
+\t\t\t\t{\n\t\t\t\t\ttemp_"+item.split(':')[0]+"[Ii]='0';\n\t\t\t\t}\n\
+\t\t\t\telse\n\t\t\t\t{\n\t\t\t\t\ttemp_"+item.split(':')[0]+"[Ii]='1';\n\
+\t\t\t\t}\n\t\t\t}\n\t\t\ttemp_"+item.split(':')[0]+"[Ii]='\\0';\n\n")
+
+
+snprintf_stmt=[]
+snprintf_count=0
+snprintf_stmt.append("\t\t\t//Sending and receiving data to-from server \n")
+snprintf_stmt.append('\t\t\tsnprintf(send_data,sizeof(send_data),"')
+for item in input_port:
+    snprintf_count=snprintf_count+1
+    snprintf_stmt.append(item.split(':')[0]+":%s")
+    if snprintf_count == len(input_port):
+        snprintf_stmt.append('",')
+        internal_count=0
+        for item1 in input_port:
+            if internal_count == len(input_port):
+                pass
+            else:    
+                snprintf_stmt.append("temp_"+item1.split(':')[0])
+                internal_count=internal_count+1
+                if internal_count == len(input_port):
+                    pass
+                else:
+                    snprintf_stmt.append(",")
+        snprintf_stmt.append(");")
+    else:
+        snprintf_stmt.append(",")
+
+snprintf_stmt.append('\n\t\t\tprintf("Client-Value of buffer string is %s \\n",send_data);')
+snprintf_stmt.append('\n\t\t\tprintf("Client-Sending data to server from client \\n");')
+
+send_data='''
+
+            if ( send(socket_fd,send_data,sizeof(send_data),0)==-1)                                                                            
+            {                                                                                                                                  
+                fprintf(stderr, "Client-Failure Sending Message \\n");                                                                           
+                close(socket_fd);                                                                                                              
+                exit(1);                                                                                                                       
+            }                                                                                                                                  
+            else                                                                                                                               
+            {                                                                                                                                  
+                printf("Client-Message being sent: %s \\n",send_data);                                                                           
+                fprintf(log_client,"Socket Id : %d & Message sent : %s \\n",socket_fd,send_data);                                               
+            }
+
+'''
+
+recv_data='''
+
+            bytes_recieved=recv(socket_fd,recv_data,sizeof(recv_data),0);                                                                      
+            if ( bytes_recieved <= 0 )                                                                                                         
+            {                                                                                                                                  
+                printf("Client-Either Connection Closed or Error \\n");                                                                          
+                exit(1);                                                                                                                       
+            }                                                                                                                                  
+            //recv_data[bytes_recieved] = '\\0';                                                                                                
+            
+            printf("Client-Message Received From Server -  %s\\n",recv_data);                                                                   
+            fprintf(log_client,"Message Received From Server- %s\\n",recv_data);   
+
+'''
+
+#Scheduling output event
+
+sch_output_event=[]
+
+for item in output_port:
+    sch_output_event.append("\t\t\t/* Scheduling event and processing them */\n\
+\t\t\tfor(Ii=0;Ii<PORT_SIZE("+item.split(':')[0]+");Ii++)\n\
+\t\t\t{\n\
+\t\t\t\tprintf(\"Client- Bit val is %c \\n\",recv_data[Ii]);\n\
+\t\t\t\tfprintf(log_client,\"Client-Bit val is %c \\n\",recv_data[Ii]);\n\
+\t\t\t\tif(recv_data[Ii]=='0')\n\t\t\t\t{\n\
+\t\t\t\t\tprintf(\"Client-Zero Received \");\n\
+\t\t\t\t\t_op_"+item.split(':')[0]+"[Ii]=ZERO;\n\t\t\t\t}\n\
+\t\t\t\telse if(recv_data[Ii]=='1')\n\t\t\t\t{\n\
+\t\t\t\t\tprintf(\"Client-One Received \\n\");\n\
+\t\t\t\t\t_op_"+item.split(':')[0]+"[Ii]=ONE;\n\
+\t\t\t\t}\n\t\t\t\telse\t\t\t\t{\n\
+\t\t\t\t\tfprintf(log_client,\"Unknow value return from server \\n\");\n\
+\t\t\t\t\tprintf(\"Client-Unknown value return \\n\");\n\t\t\t\t}\n\
+\t\t\t\tif(ANALYSIS == DC)\n\t\t\t\t{\n\
+\t\t\t\t\tOUTPUT_STATE("+item.split(':')[0]+"[Ii]) = _op_"+item.split(':')[0]+"[Ii];\n\
+\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t{\n\
+\t\t\t\t\tif(_op_"+item.split(':')[0]+"[Ii] != _op_"+item.split(':')[0]+"_old[Ii])\n\
+\t\t\t\t\t{\n\
+\t\t\t\t\t\tOUTPUT_STATE("+item.split(':')[0]+"[Ii]) = _op_"+item.split(':')[0]+"[Ii];\n\
+\t\t\t\t\t\tOUTPUT_DELAY("+item.split(':')[0]+"[Ii]) = ((_op_"+item.split(':')[0]+"[Ii] == ZERO) ? PARAM(fall_delay) : PARAM(rise_delay));\n\
+\t\t\t\t\t}\n\t\t\t\t\telse\n\t\t\t\t\t{\n\
+\t\t\t\t\t\tOUTPUT_CHANGED("+item.split(':')[0]+"[Ii]) = FALSE;\n\t\t\t\t\t}\n\
+\t\t\t\t}\n\t\t\t\tOUTPUT_STRENGTH("+item.split(':')[0]+"[Ii]) = STRONG;\n\
+\t\t\t}\n")
+
+
+els_time_limit='''
+
+        else                                                                                                                                   
+        {                                                                                                                                     
+            char *end_signal="END";                                                                                                            
+            printf("Closing Ngspice Simulation \\n");                                                                                           
+            printf("current time = %g\\n",TIME);                                                                                                
+            fprintf(log_client,"Times : Closing Socket \\n");                                                                                   
+            snprintf(send_data,sizeof(send_data),"%s",end_signal);                                                                             
+            printf("Client-Value of buffer string is for END signal is %s \\n",send_data);                                                      
+            printf("Client-Sending data to server from client for end signal \\n");                                                             
+            
+            if ( send(socket_fd,send_data,sizeof(send_data),0)==-1)                                                                            
+            {                                                                                                                                  
+                printf("Client-Failure Sending Message for END signal \\n");                                                                    
+                close(socket_fd);                                                                                                              
+                exit(1);                                                                                                                       
+            }                                                                                                                                  
+            else                                                                                                                               
+            {                                                                                                                                  
+                printf("Client-Message being sent for END signal : %s\\n",send_data);                                                           
+                fprintf(log_client,"Socket Id : %d & Message sent : %s for END signal \\n",socket_fd,send_data);                                
+            }                                                                                                                                  
+            flag++;                                                                                                                            
+            close(socket_fd);                                                                                                                  
+        }    
+
+'''
+
+
+#Writing content in cfunc.mod file 
+cfunc.write(comment)
+cfunc.write(header)
+cfunc.write("\n")
+cfunc.write(function_open)
+cfunc.write("\n")
+
+#Adding digital state Variable
+for item in digital_state_output:
+    cfunc.write("\t"+item+"\n")
+    
+#Adding variable declaration section
+cfunc.write(var_section)
+for item in temp_input_var:
+    cfunc.write("\t"+item+"\n")
+cfunc.write("\n");
+
+#Adding INIT portion
+cfunc.write(init_start_function)
+for item in cm_event_alloc:
+    cfunc.write(2*"\t"+item)
+    cfunc.write("\n")
+
+cfunc.write(2*"\t"+"/* set the load for input ports. */")
+cfunc.write("\n")
+cfunc.write(2*"\t"+"int Ii;")
+cfunc.write("\n");
+
+for item in load_in_port:
+    cfunc.write(2*"\t"+item)
+    cfunc.write("\n")
+cfunc.write("\n")
+cfunc.write(2*"\t"+"/*Retrieve Storage for output*/")
+cfunc.write("\n")
+for item in cm_event_get_ptr:
+    cfunc.write(2*"\t"+item)
+    cfunc.write("\n")
+cfunc.write(systime_info)
+cfunc.write("\n")
+cfunc.write('\t\tsystem("'+home+'/ngspice-26/src/xspice/icm/ghdl/'+fname.split('.')[0]+'/DUTghdl/start_server.sh &");\n')
+cfunc.write("\t}")
+cfunc.write("\n")
+cfunc.write("\telse\n\t{\n")
+
+for item in els_evt_ptr:
+    cfunc.write(2*"\t"+item)
+    cfunc.write("\n")
+cfunc.write("\t}")
+cfunc.write("\n\n")
+cfunc.write("\tif(flag==0)\n\t{")
+cfunc.write(client_setup)
+cfunc.write(create_socket)
+cfunc.write(connect_server)
+cfunc.write(time_limit)
+
+for item in assign_data_to_input:
+    cfunc.write(item)
+
+for item in snprintf_stmt:
+    cfunc.write(item)
+
+cfunc.write(send_data)
+cfunc.write(recv_data)
+
+for item in sch_output_event:
+    cfunc.write(item)
+#End of if statement of time limit
+cfunc.write(2*"\t"+"}")
+
+#Else part of time limit -sending END signal
+cfunc.write(els_time_limit)
+
+#Close if of flag==0
+cfunc.write("\t}\n\n")
+
+#close log_client file
+cfunc.write("\tfclose(log_client);")
+
+#Close cm_ function
+cfunc.write("\n}")
+cfunc.close()
+
+################Creating ifspec.ifs file########################################
+print "Starting with ifspec.ifs file"
+ifspec=open('ifspec.ifs','w')
+
+print "Gathering Al the content for ifspec file"
+
+ifspec_comment='''
+/*
+SUMMARY: This file is auto generated and it contains the interface specification for the                                                                            
+code model. */\n  
+'''
+
+name_table='NAME_TABLE:\n\
+C_Function_Name: cm_'+fname.split('.')[0]+'\n\
+Spice_Model_Name: '+fname.split('.')[0]+'\n\
+Description: "Model generated from ghdl code '+fname+'" \n'
+
+#Input and Output Port Table
+in_port_table=[]
+out_port_table=[]
+
+for item in input_port:
+    port_table = 'PORT_TABLE:\n'
+    port_name = 'Port_Name:\t'+item.split(':')[0]+'\n'
+    description = 'Description:\t"input port '+item.split(':')[0]+'"\n'
+    direction = 'Direction:\tin\n'
+    default_type = 'Default_Type:\td\n'
+    allowed_type = 'Allowed_Types:\t[d]\n'
+    vector = 'Vector:\tyes\n'
+    vector_bounds = 'Vector_Bounds:\t['+item.split(':')[1]+' '+item.split(":")[1]+']\n'
+    null_allowed = 'Null_Allowed:\tno\n'
+    #Insert detail in the list
+    in_port_table.append(port_table+port_name+description+direction+default_type+allowed_type+vector+vector_bounds+null_allowed)
+
+
+for item in output_port:
+    port_table = 'PORT_TABLE:\n'
+    port_name = 'Port_Name:\t'+item.split(':')[0]+'\n'
+    description = 'Description:\t"output port '+item.split(':')[0]+'"\n'
+    direction = 'Direction:\tout\n'
+    default_type = 'Default_Type:\td\n'
+    allowed_type = 'Allowed_Types:\t[d]\n'
+    vector = 'Vector:\tyes\n'
+    vector_bounds = 'Vector_Bounds:\t['+item.split(':')[1]+' '+item.split(":")[1]+']\n'
+    null_allowed = 'Null_Allowed:\tno\n'
+    #Insert detail in the list
+    in_port_table.append(port_table+port_name+description+direction+default_type+allowed_type+vector+vector_bounds+null_allowed)
+
+parameter_table='''
+PARAMETER_TABLE:                                                                                                                               
+Parameter_Name:     rise_delay                  fall_delay                                                                                     
+Description:        "rise delay"                "fall delay"                                                                                   
+Data_Type:          real                        real                                                                                           
+Default_Value:      1.0e-9                      1.0e-9                                                                                         
+Limits:             [1e-12 -]                   [1e-12 -]                                                                                      
+Vector:              no                          no                                                                                            
+Vector_Bounds:       -                           -                                                                                             
+Null_Allowed:       yes                         yes                                                                                            
+
+PARAMETER_TABLE:                                                                                                                               
+Parameter_Name:     input_load                  stop_time                                                                                      
+Description:        "input load value (F)"      "time at which to shut-down (seconds)"                                                         
+Data_Type:          real                        real                                                                                           
+Default_Value:      1.0e-12                     1.0                                                                                            
+Limits:             -                           [0.0 -]                                                                                        
+Vector:              no                         no                                                                                             
+Vector_Bounds:       -                          -                                                                                              
+Null_Allowed:       yes                         no    
+
+'''
+
+
+#Writing all the content in ifspec file
+ifspec.write(ifspec_comment)
+ifspec.write(name_table+"\n\n")
+
+for item in in_port_table:
+    ifspec.write(item+"\n")
+
+ifspec.write("\n")
+
+for item in out_port_table:
+    ifspec.write(item+"\n")
+
+ifspec.write("\n")
+ifspec.write(parameter_table)
+ifspec.close()
+
+
+########Creating testbench file ################################################
+print "Starting with testbench file"
+
+testbench=open(fname.split('.')[0]+'_tb.vhdl','w')
+#Adding header, entity and architecture statement
+tb_header='''
+library ieee;                                                                                                                                   
+use ieee.std_logic_1164.all;                                                                                                                    
+use ieee.numeric_std.all;                                                                                                                       
+library work;                                                                                                                                   
+use work.Vhpi_Foreign.all;                                                                                                                      
+use work.Utility_Package.all;
+
+
+'''
+
+tb_entity="entity "+fname.split('.')[0]+"_tb is\nend entity;\n\n"
+
+arch="architecture "+fname.split('.')[0]+"_tb_beh of "+fname.split('.')[0]+"_tb is\n"
+
+#Adding components
+
+components=[]
+components.append("\tcomponent "+fname.split('.')[0]+" is\n\t\tport(\n\t\t\t\t")
+
+for item in input_port:
+    components.append(item.split(':')[0]+": in std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n\t\t\t\t")
+    #if item.split(":")[1] != '1':
+    #    components.append(item.split(':')[0]+": in std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n\t\t\t\t")
+    #else:
+    #    components.append(item.split(':')[0]+": in std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n\t\t\t\t")
+
+for item in output_port:
+    components.append(item.split(':')[0]+": out std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0)\n\t\t\t\t")
+    #if item.split(":")[1] != '1':                                                                                                               
+    #    components.append(item.split(':')[0]+": out std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0)\n\t\t\t\t")                
+    #else:                                                                                                                                       
+    #    components.append(item.split(':')[0]+": out std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0)\n\t\t\t\t")
+
+components.append(");\n")
+components.append("\tend component;\n\n")
+
+#Adding signals
+signals=[]
+signals.append("\tsignal clk_s : std_logic := '0';\n")
+
+for item in input_port:
+    signals.append("\tsignal "+item.split(':')[0]+": std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n")
+    #if item.split(":")[1] != '1':                                                                                                               
+    #    signals.append("\tsignal "+item.split(':')[0]+": std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n")                
+    #else:                                                                                                                                       
+    #    signals.append("\tsignal "+item.split(':')[0]+": std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n")
+
+
+for item in output_port:
+    signals.append("\tsignal "+item.split(':')[0]+": std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n")
+    #if item.split(":")[1] != '1':                                                                                                               
+    #    signals.append("\tsignal "+item.split(':')[0]+": std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n")                
+    #else:                                                                                                                                       
+    #    signals.append("\tsignal "+item.split(':')[0]+": std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n")
+
+#Adding mapping part 
+map=[]
+map.append("\tu1 : "+fname.split('.')[0]+" port map(\n")
+
+for item in input_port:
+    map.append("\t\t\t\t"+item.split(':')[0]+" => "+item.split(':')[0]+",\n")
+
+for item in output_port:
+    if output_port.index(item) == len(output_port) - 1:
+        map.append("\t\t\t\t"+item.split(':')[0]+" => "+item.split(':')[0]+"\n")
+    else:
+        map.append("\t\t\t\t"+item.split(':')[0]+" => "+item.split(':')[0]+",\n")
+map.append("\t\t\t);")
+
+
+#testbench Clock
+tb_clk= "clk_s <= not clk_s after 5 us;\n\n"
+
+#Adding process block 
+process=[]
+process.append("\tprocess\n\n")
+
+for item in input_port:
+    process.append("\t\tvariable "+item.split(':')[0]+"_v : VhpiString;\n")
+
+for item in output_port:
+    process.append("\t\tvariable "+item.split(':')[0]+"_v : VhpiString;\n")
+
+process.append("\t\tvariable obj_ref : VhpiString;\n")
+process.append("\tbegin\n\n\t\tVhpi_Initialize;\n\t\twait until clk_s = '1';\n\n")
+process.append("\t\twhile true loop\n")
+process.append("\t\t\twait until clk_s = '0';\n\t\t\twait for 5 ns;\n\t\t\tVhpi_Listen;\n\n")
+
+for item in input_port:
+    process.append('\t\t\tobj_ref := Pack_String_To_Vhpi_String("'+item.split(':')[0]+'");\n')
+    process.append('\t\t\tVhpi_Get_Port_Value(obj_ref,'+item.split(':')[0]+'_v,'+item.split(':')[1]+');\n')
+    process.append('\t\t\tassert false report "Get port value '+item.split(':')[0]+' returns " &'+item.split(':')[0]+'_v severity note;\n')
+    process.append('\t\t\t'+item.split(':')[0]+' <= Unpack_String('+item.split(':')[0]+'_v,'+item.split(':')[1]+');\n')
+    process.append('\t\t\twait for 1 ns;\n')
+    process.append("\n")
+
+for item in output_port:
+    process.append('\t\t\t'+item.split(':')[0]+'_v := Pack_String_To_Vhpi_String(Convert_SLV_To_String('+item.split(':')[0]+'));\n')
+    process.append('\t\t\tobj_ref := Pack_String_To_Vhpi_String("'+item.split(':')[0]+'");\n')
+    process.append('\t\t\tVhpi_Set_Port_Value(obj_ref,'+item.split(':')[0]+'_v,'+item.split(':')[1]+');\n')
+    process.append('\t\t\tassert false report "Set port value '+item.split(':')[0]+' returns " &'+item.split(':')[0]+'_v severity note;\n')
+    process.append('\t\t\twait for 1 ns;\n')
+    process.append("\n")
+                                                                                                                              
+                                                                                                                                                                 
+process.append("\t\t\tVhpi_Send;\n\n")
+process.append("\t\tend loop;\n")
+process.append("\tend process;\n\n")
+process.append("end architecture;")
+
+
+#Writing all the components to testbench file
+
+testbench.write(tb_header)
+testbench.write(tb_entity)
+testbench.write(arch)
+
+for item in components:
+    testbench.write(item)
+
+for item in signals:
+    testbench.write(item)
+
+testbench.write("\n\n")
+
+testbench.write("begin\n\n")
+
+for item in map:
+    testbench.write(item)
+
+testbench.write("\n\t"+tb_clk)
+
+for item in process:
+    testbench.write(item)
+
+testbench.close()
+
+#####################################Creating and writing components in start_server.sh ################################
+
+start_server = open('start_server.sh','w')
+
+start_server.write("#!/bin/bash\n\n")
+start_server.write("###This server run ghdl testebench for infinite time till ngspice send END signal to stop it\n\n")
+start_server.write("#gcc -c ghdlserver.c\n")
+start_server.write("#ghdl -a Utility_Package.vhdl &&\n")
+start_server.write("#ghdl -a Vhpi_Package.vhdl &&\n")
+start_server.write("cd "+home+"/ngspice-26/src/xspice/icm/ghdl/"+fname.split('.')[0]+"/DUTghdl/\n")
+start_server.write("ghdl -a "+fname+" &&\n")
+start_server.write("ghdl -a "+fname.split('.')[0]+"_tb.vhdl  &&\n")
+start_server.write("ghdl -e -Wl,ghdlserver.o "+fname.split('.')[0]+"_tb &&\n")
+start_server.write("./"+fname.split('.')[0]+"_tb")
+
+start_server.close()