JzrW<n> - P-Code Instructions

P-Code Instructions (pcode.hlp) (Table of Contents; Topic list)

Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

JzrW<n>

                                              ◄Up► ◄Contents► ◄Index► ◄Back►
──P-Code Instructions───────────────────────────────────────────────────────
 
  Syntax
 
  JzrW<n>
 
  /* Branch on Zero */
 
  Possible Instructions
 
  JzrW1...JzrW8, JzrWb
 
  See: ◄P-Code Operands►
 
  Description
 
  Pops the top element off the stack and checks to see if it is equal to
  zero. If it is equal to zero, control jumps ahead <n> bytes or to
  location S. Otherwise execution continues with the next instruction.
 
  Pseudocode equivalent:
 
  if (popW() == 0)
  pc += <n>;
 
  The instruction is generated in the condition below:
 
  if (wTest != 0)               /* generates JzrW<n> */
 
 
                                     -♦-