HEIDENHAIN TNC 426 PB/M Technical Manual page 954

Word processing
with the AND NOT
command
Function
Load W6 into the
word accumulator.
Gate the content of
word accumulator
and word W4 with
AND NOT.
Assign the gating
result to word W8.
December 2001
Syntax: AN (AND NOT)
Operands: B, W, D, K
Action:
Gate the contents of the word accumulator and the operand with AND NOT.
In accordance with the different data widths of the operands (B = 8 bits; W =
16 bits; D = K = 32 bits), 8, 16 or 32 bits, respectively, are influenced in the
accumulator. Thus, bit 0 of the accumulator is gated with bit 0 of the operand,
bit 1 of the accumulator with bit 1 of the operand, etc. The TNC saves the
result of the operation in the word accumulator.
Example:
Gate the content of words W4 and W6 with AND NOT, and assign the result
to word W8.
Initial state:
Word W4 = 36 AA (hex)
Word W6 = 3C 36 (hex)
Word W8 = ?
STL Accumulator contents [bit]
31..15 ..................... 7 ................. 0 1 5 .......... 8 7 ............ 0
L W6 0 ..... 0 0 1 1 1 1 0 0 0 0 1 1 0 1 1 0 0 0 1 1 1 1 0 0 0 0 1 1 0 1 1 0
AN W4 0 ..... 0 0 0 0 1 0 0 0 0 0 0 1 0 1 0 0 0 0 1 1 0 1 1 0 1 0 1 0 1 0 1 0
= W8 0 ..... 0 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 0 0
Commands
Operand contents [bit]
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