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Function that returns a TRUE value if the number of bits in the high state (1), in the indicated bytes of a variable, is even.

Syntax

i32 par_even (i32 value [, i32 nByte=1])

value

Value to calculate the parity of

nByte

Number of bytes. (optional, default 1)

Result

Returns:

Value

Description

> 0

Number of bits at 1 (if even)

0

Otherwise

Validity

Rule, Task

Note

Example of use:

if(par_even(r(100)))    ; 1 byte default

    ; Here we get there if the number of bits at 1 in the low byte of R(100) is even

    r(101) = r(101)+1

end_if

 

 

if(par_even(r(100), 4))    ; all 4 bytes

    ; Here we get there if the number of bits to 1 in R(100) is even

    r(101) = r(101)+1

end_if

 
  

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