vartype:

vartype: Rx, Ry

Load Rx with a type code that corresponds to data type in Ry. The types codes are:

• 0 = empty
• 1 = null
• 3 = integer
• 5 = float
• 7 = date
  
• 256 = string
  

Parameters:

Rx: A numeric register containing a type code.
Ry: A register.