# -*- coding: utf-8 -*-
"""
Created on Tue Jun 23 16:34:33 2015

@author: sundranandhan
"""

import math as m


f = float(input("Enter frequency in kHz=  "))
a = int(f)
d = float(input("Enter duty cycle (<0.5): "))
b = int(d*100)
s = "SqWv_"+str(b)+"duty"+str(a)+"kHz.ino"
fo = open(s, "w")
fo.write( """
void setup()
{
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
}

void loop()
{
 
  
  while(1){
"""    )
TotNop = int(1/f/62.5e-9/1000.0)
s = "// nop="+str(TotNop)+" freq="+str(f)+" kHz\n"
fo.write(s)
s = "// Duty Cycle = "+str(d*100)+"%\n"
fo.write(s)
fo.write("""
    
   PORTD |= 0x4;     //gate0 on 
   
""")
D1 = int(TotNop*d)
s = "// noplines="+str(D1//10)+", 10 in each line\n"
fo.write(s)
for i in range(D1//10):
    fo.write("""        __asm__("nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t");""")
    fo.write("  // "+str(i+1)+"\n")
s = "// nop="+str(D1%10)+"\n"
fo.write(s)
s = """        __asm__("""
fo.write(s)
for i in range(D1%10):
    fo.write('"nop\\n\\t"')
s = """);\n"""
fo.write(s)
s = "// Actual duty cycle using nops is="+str(float(D1)/float(TotNop))
fo.write(s)
fo.write("""

   PORTD &= ~0x4;  //delay

""")

D2 = int((0.50 - d)*TotNop)
s = "// noplines="+str(D2//10)+", 10 in each line\n"
fo.write(s)
for i in range(D2//10):
    fo.write("""        __asm__("nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t"); """)
    fo.write("  // "+str(i+1)+"\n")
s = "// nop="+str(D2%10)+"\n"
fo.write(s)
s = """        __asm__("""
fo.write(s)
for i in range(D2 % 10):
    fo.write('"nop\\n\\t"')
s = """);\n"""
fo.write(s)
fo.write("""
    
   PORTD |= 0x8;    //gate1 on
    
""")

D3 = int(TotNop*d)
s = "// noplines="+str(D3//10)+", 10 in each line\n"
fo.write(s)

for i in range(D3//10):
    fo.write("""        __asm__("nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t");""")
    fo.write("  // "+str(i+1)+"\n")
s = "// nop="+str(D3%10)+"\n"
fo.write(s)
s = """        __asm__("""
fo.write(s)
for i in range(D3%10):
    fo.write('"nop\\n\\t"')
s = """);\n"""
fo.write(s)
fo.write("""

   PORTD &= ~0x8;    //gate1 off   

""")

D4 = int((0.5 - d)*TotNop)
s = "// noplines="+str(D4//10)+", 10 in each line\n"
fo.write(s)
for i in range(D4//10):
    fo.write("""        __asm__("nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t""nop\\n\\t"); """)
    fo.write("  // "+str(i+1)+"\n")
s = "// nop="+str(D4%10)+"\n"
fo.write(s)
s = """        __asm__("""
fo.write(s)
for i in range(D4 % 10):
    fo.write('"nop\\n\\t"')
s = """);\n"""
fo.write(s)
fo.write("""}} """)

fo.close()