Question.

Comments

• sylvie369 Posts: 1,622

  2009-01-07 03:42 edited 2009-01-07 03:42

  Try changing
  
  DEBUG CR, "Binary Code sense a " a "."
  
  to
  
  DEBUG CR, "Binary Code sense a ", DEC a,"."
• Passerby Posts: 17

  2009-01-07 03:59 edited 2009-01-07 03:59

  Thank you.
• Tracy Allen Posts: 6,667

  2009-01-07 07:17 edited 2009-01-07 07:17

  Hi Passerby,
  
  It wasn't part of the question, but you may replace,
  

  IF IN1 = 1 AND IN2 = 0 AND IN3 = 0 AND IN4 = 0 THEN a = 1
  IF IN1 = 0 AND IN2 = 1 AND IN3 = 0 AND IN4 = 0 THEN a = 2
  IF IN1 = 1 AND IN2 = 1 AND IN3 = 0 AND IN4 = 0 THEN a = 3
  IF IN1 = 0 AND IN2 = 0 AND IN3 = 1 AND IN4 = 0 THEN a = 4
  IF IN1 = 1 AND IN2 = 0 AND IN3 = 1 AND IN4 = 0 THEN a = 5
  IF IN1 = 0 AND IN2 = 1 AND IN3 = 1 AND IN4 = 0 THEN a = 6
  IF IN1 = 1 AND IN2 = 1 AND IN3 = 1 AND IN4 = 0 THEN a = 7
  IF IN1 = 0 AND IN2 = 0 AND IN3 = 0 AND IN4 = 1 THEN a = 8
  IF IN1 = 1 AND IN2 = 0 AND IN3 = 0 AND IN4 = 1 THEN a = 9
  IF IN1 = 0 AND IN2 = 0 AND IN3 = 0 AND IN4 = 0 THEN a = 0
  

  
  
  all with the much simpler expression...
  

  a = INS >> 1 & $F
  

  
  ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
  Tracy Allen
  www.emesystems.com
• Passerby Posts: 17

  2009-01-09 02:38 edited 2009-01-09 02:38

  a = INS >> 1 & $
  

  
  
  
  What does the expression mean?
  
  

  ' {$STAMP BS2}
  ' {$PBASIC 2.5}
  ' Project: GT60-Phone Systen
  ' Group members: Chia Kok Kuang 0604912F
  ' : Song Chan Meng 0607862J
  '======================================================================================
  a VAR Byte
  
  SETUP:
  INPUT 1 'Set PIN 1 to INPUT
  INPUT 2 'Set PIN 2 to INPUT
  INPUT 3 'Set PIN 3 to INPUT
  INPUT 4 'Set PIN 4 to INPUT
  
  BINARYCHECK:
  
  a = INS >> 1 & $F
  
  "Binary Code sense a ", DEC a,"."
  
  PAUSE 200
  
  GOTO BINARYCHECK
  

  
  
  
  like this?
  
  EDIT 2:
  
  Shouldn't it be:
  
  

  a = INS >> 0 & 9
  

  
  
  
  if I want it to count starting from 0, and ends at 9?
  
  [noparse]:)[/noparse]
  
  Post Edited (Passerby) : 1/9/2009 6:34:04 AM GMT
• agfa Posts: 295

  2009-01-09 13:57 edited 2009-01-09 13:57

  Passerby said...
  What does the expression mean?

  The "INS"·reads·the inputs 0 to 14 as a word, the ">> 1" shifts the value 1 bit to the right, then the "& $F" masks·bits·0 to 3.· The shift converts the values you input from decimal 0 to 18 -to- 0 to 9. The mask ingores bits 4 to 15, by using a bitwise AND "&" with the hex value F.
  
  
  
  Post Edited (agfa) : 1/9/2009 4:18:26 PM GMT