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CM71-00105-1E FUJITSU MICROELECTRONICS LIMITED 145
FR81 Family
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.21
7.21 BEORH (Eor 4bit Immediate Data to Higher 4bit of Byte
Data in Memory)
Takes the logical exclusive OR of the 4-bit immediate data and the higher 4 bits of byte
data at memory address Ri, stores the results to the memory address corresponding to
Ri.
● Assembler Format
BEORH #u4,@Ri
● Operation
(Ri) ^ {u4 << 4} → (Ri) [Operation uses higher 4 bits only]
● Flag Change
N, Z, V, C: Unchanged.
● Classification
Bit Operation instruction, Read/Modify/Write type instruction
● Execution Cycles
1+2a cycles
● Instruction Format
NZVC
----
MSB LSB
10011001 u4 Ri