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Note that –xop is a special case of yop – xop, with yop specified to be 0.
Z: Destination register Yop: Y operand
Xop: X operand COND: condition
Syntax: [ IF cond ] AR = NOT xop ;
AF yop
Permissible xops Permissible yops Permissible conds (see Table 15.9)
AX0 MR2 AY0 EQ LE AC
AX1 MR1 AY1 NE NEG NOT AC
AR MR0 AF GT POS MV
SR1 0 GE AV NOT MV
SR0 LT NOT AV NOT CE
Example: IF NE AF = NOT AX0;
Description: Test the optional condition and if true, then perform the
logical complement (ones complement) of the source operand and store in
the destination location. If the condition is not true then perform a no-
operation. Omitting the condition performs the complement operation
unconditionally. The source operand is contained in the data register
specified in the instruction.
Status Generated:
ASTAT: 7 6 543210
SS MV AQ AS AC AV AN AZ
–– – – 0 0 **
AZ Set if the result equals zero. Cleared otherwise.
AN Set if the result is negative. Cleared otherwise.
AV Always cleared.
AC Always cleared.
Instruction Format:
Conditional ALU/MAC Operation, Instruction Type 9:
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 0 1 0 0 Z AMF Yop Xop 0 0 0 0 COND
AMF specifies the ALU or MAC operation. In this case,
AMF = 10100 for NOT yop operation.
ALU
NOT
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