Motorola DSP56800 Manual page 365

NEG
Instruction Fields:
Operation
NEG
Data ALU Operation
Operation
NEG
Timing: 2 + mv oscillator clock cycles
Memory:
1 program word
Negate Accumulator
Operands C
F 2
Registers Memory Access
A
B
Instruction Set Details
W
1 Two's-complement negation
Parallel Memory Read or Write
Source or Destination
X:(Rn)+
X:(Rn)+N
NEG
Comments
X0
Y1
Y0
A1
B1
A
B
A-135