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DESCRIPTION OF INSTRUCTIONS
371
111. XRL data address, A (Logical exclusive OR accumulator to memory)
01100010
70
Instruction code
Data address
Operation
Number of bytes
Number of cycles
Flags
(PSW)
Description
Example XRL 20H, A
Instruction code
: Byte 1
a7 a6 a5 a4 a3 a2 a1 a0
70
Byte 2
(data address)←(data address) XOR (A):
C AC F0 RS1 RS0 OV F1 P
•
:
:
:
The exclusive OR between the accumulator and the specified
data address contents is determined. The result is placed in the
specified data address.
:
01100010
70
Byte 1
Accumulator
01110101
70
2
1
00100000
70
Byte 2
Before execution
Accumulator
01110101
70
After execution
:
20H
11010011
70
20H
10100110
70