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XOR loc16, AX
6-385
XOR loc16, AX
Bitwise Exclusive OR
SYNTAX OPTIONS
OPCODE
OBJMODE
RPT
CYC
XOR loc16, AX
1111 001A LLLL LLLL
X
−
1
Operands
loc16
Addressing mode (see Chapter 5)
AX
Accumulator high (AH) or accumulator low (AL) register
Description
Perform a bitwise exclusive OR operation on the 16-bit contents of location
pointed to by the “loc16” addressing mode and the specified AX register (AH
or AL). The result is stored in the location pointed to by “loc16”:
[loc16] = [loc16] XOR AX;
This instruction performs a read-modify-write operation.
Flags and
Modes
N
The load to [loc16] is tested for a negative condition. If bit 15 of [loc16] is 1,
then the negative flag bit is set; otherwise it is cleared.
Z
The load to [loc16] is tested for a zero condition. The zero flag bit is set if the
operation generates [loc16] = 0, 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
; XOR the contents of VarA with VarB and store in VarB:
MOV AL,@VarA
; Load AL with contents of VarA
XOR @VarB,AL
; VarB = VarB XOR AL
Summary of Contents for TMS320C28x
Page 30: ...1 12...
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Page 269: ...IN loc16 PA 6 112 MOV AL 0 AL 0 UOUT IORegC AL IOspace IORegC AL 10...
Page 308: ...MAXCUL P loc32 6 151 Saturate MOVL Var64 2 ACC Store result into Var64 MOVL Var64 P...
Page 509: ...SUBL ACC P PM 6 352 SUBL ACC P PM ACC S B 11 M X 4 MOVH Y ACC 5 Store Q15 result into Y...
Page 585: ...This page intentionally left blank 7 32 This page intentionally left blank...