Technical Manual TNC 360 - heidenhain - DR. JOHANNES ...

Word execution with the EXCLUSIVE OR command
Operands: B, W, D, K
Operation:
The contents of the Word Accumulator and the contents of the operand (B, W, D, K) are gated with
EXCLUSIVE OR. In accordance with the different sizes of operand (B = 8 bit; W = 16 bit;
D = K = 32 bit), 8, 16 or 32 bits will be influenced in the Accumulator.
Thus: Bit 0 in the Accumulator is gated with bit 0 in the operand
Bit 1 in the Accumulator is gated with bit 1 in the operand and so on.
The result of the operation is stored in the Word Accumulator.
Example:
The contents of Byte B5 and Byte B6 are to be gated with EXCLUSIVE OR and the result assigned
to Word W8.
Initial state Byte B5 = 2A (hex)
Byte B6 = 36 (hex)
Word W8 = ?
Line Instruction Accumulator Contents Operand Contents
Bit 31 . . . 15 7 0 15 8 7 0
... x x x x x x x x x x x x x x x x x x
1 L B6 ... 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 0 00110110
2 XO B5 ... 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 00101010
3 = W8 ... 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 00000000 00011100
Line 1: The contents of Byte B6 are loaded into the Accumulator.
Line 2: The contents of the Word Accumulator and Byte B5 are gated with EXCLUSIVE OR.
Line 3: The gating result is assigned to Word W8.
8/95 TNC 360 3 Commands 7-53