Maxim Integrated DS4830A Optical Microcontroller User 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.<b> 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.<b>) and returns the result to the Carry.
Status Flags:
C
Operation:
C
C XOR Acc.<b>
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