Simple way to copy last byte of a long to a new variable?

Comments

• Phil Pilgrim (PhiPi) Posts: 23,514

  2012-07-25 17:02 edited 2012-07-25 17:02

  byte_variable := byte[@long_variable]
  
  ... or just
  
  byte_variable := long_variable (assuming byte_variable is declared as byte)
  
  -Phil
• brianm734 Posts: 29

  2012-07-25 17:28 edited 2012-07-25 17:28

  Great Phil, Thanks.
• JonnyMac Posts: 9,379

  2012-07-27 08:25 edited 2012-07-27 08:25

  You can get to any byte in a word or long using .byte[] notation as well.
  
  bytevar := longvar.byte[0]
  
  It's really not necessary for byte 0 (as Phil pointed out above), but useful for the others.
• Beau Schwabe Posts: 6,572

  2012-07-27 08:39 edited 2012-07-27 08:39

  There is also a way to do it without using any additional program overhead if you can define your long variable in the DAT section.
  
  See this link:
  http://forums.parallax.com/showthread.php?133583-VAR-Aliases...&p=1024313&viewfull=1#post1024313
  
  Example using the Propeller demoboard or QuickStart LEDs:
  http://forums.parallax.com/showthread.php?112970-Word-Sized-constant-in-Byte-array&p=808493&viewfull=1#post808493