ZiLOG Z8 PLUS User Manual page 128

.75
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XOR
Logical Exclusive OR
Instruction Format:
XOR dst, src
OPC
OPC
OPC
Operation:
dst ← dst XOR src
The source operand performs a logical EXCLUSIVE ORed operation, which stores a 1 in the destination
operand whenever the corresponding bits in the two operands are different. The destination operand is set to
1; otherwise, a 0 is stored. The contents of the source operand are not changed.
Flags:
When the instruction is executed, the flags are set as follows:
C: The value set by the preceding instruction.
Z: 1 if the result is 0; otherwise, 0.
S: 1 if bit 7 of the result is 1; otherwise, 0.
V: 0.
D: The value set by the preceding instruction.
H: The value set by the preceding instruction.
dst src
src
dst
OPC (Hex)
B2
B3
B4
dst
B5
B6
src
B7
Address Mode
dst src
r r
r Ir
R R
R IR
R IM
IR IM