Filter
Top Products
104
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.25 EORB (Exclusive Or Byte Data of Source Register to Data
in Memory)
Takes the logical exclusive OR of the byte data at memory address "Ri" and the byte
data in "Rj", stores the results to the memory address corresponding to "Ri".
The CPU will not accept hold requests between the memory read operation and the
memory write operation of this request.
■ EORB (Exclusive Or Byte Data of Source Register to Data in Memory)
Assembler format: EORB Rj, @Ri
Operation: (Ri) eor Rj → (Ri)
Flag change:
N: Set when the MSB (bit 7) of the operation result is "1", cleared when the MSB is "0".
Z: Set when the operation result is "0", cleared otherwise.
V and C: Unchanged
Execution cycles: 1 + 2a cycles
Instruction format:
NZVC
CC– –
MSB LSB
10011110 Rj Ri