Maxim Integrated DS4830A Optical Microcontroller - Manual (Page 230)

DS4830A User’s Guide
230
XOR src Logical XOR
Description:
Performs a logical-XOR between the active accumulator (Acc or A[AP]) and the specified src
data. For the complete list of src specifiers, reference the MOVE instruction. Because the
source is limited to 8 bits, the PFX[n] register is used to supply the high-byte of data for
16 bit sources.
Status Flags: S, Z
Operation:
Acc  Acc XOR src
Encoding:
15 0
f011 1010 ssss ssss
Example(s):
; Acc = 2345h
XOR A[2] ; A[2]=0F0Fh; Acc  2C4Ah
Special Notes:
The active accumulator (Acc) is not allowed as the src for this operation.
XOR Acc. Logical XOR Carry Flag with Accumulator Bit
Description:
Performs a logical-XOR between the Carry (C) status flag and a specified bit of the active
accumulator (Acc.) and returns the result to the Carry.
Status Flags: C
Operation:
C  C XOR Acc.
Encoding:
15 0
1011 1010 bbbb 1010
Example(s):
; Acc = 2345h, C=1 at start
XOR Acc.1 ; Acc.1=0  C=1
XOR Acc.2 ; Acc.2=1  C=0