Equal To (==) - HEIDENHAIN iTNC 530 HSCI Technical Manual

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9.8.31 EQUAL TO (==)

This command sets off a direct transition from word to logical processing.

Compare the content of the word accumulator with the content of the

addressed operand. If the word accumulator and the operand are equal, the

condition is true and the iTNC sets the logic accumulator to 1. If they are not

equal, the logic accumulator is set to 0. The comparison takes place over the

number of bits corresponding to the operand:

where B = 8 bits, W = 16 bits, and D = K = 32 bits.

Compare a constant with the content of double word D8, and assign the result

to marker M500.

Initial state:

= 16 000 (dec)

Double word D8

= 15 000 (dec)

Load the constant into the

word accumulator.

Compare the content of

the word accumulator

with the operand content

D8; if not equal, set the

logic accumulator to 0.

Assign the result to

marker M500.

9.8 Command Set

Operand content