Texas Instruments TMS320C28x User Manual

NOT AX
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NOT AX Complement AX Register
SYNTAX OPTIONS OPCODE OBJMODE RPT CYC
NOT AX 1111 1111 0101 111A X − 1
Operands AX Accumulator high (AH) or accumulator low (AL) register
Description Replace the contents of the specified AX register (AH or AL) with its
complement:
AX = AX XOR 0xFFFF;
Flags and
Modes
N
After the operation, if bit 15 of AX is 1 then the negative flag bit is set; otherwise
it is cleared.
Z
After the operation, if AX is 0, then the Z bit is set, otherwise it is cleared.
Repeat This instruction is not repeatable. If this instruction follows the RPT
instruction, it resets the repeat counter (RPTC) and executes only once.
Example
; Complement the contents of VarA:
MOV AL,@VarA ; Load AL with contents of VarA
NOT AL ; Complement contents of AL
MOV @VarA,AL ; Store result in VarA

Texas Instruments TMS320C28x Specifications

General

Brand	Texas Instruments
Model	TMS320C28x
Category	Processor
Language	English