FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E - Manual (Page 199)

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CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.79 STB (Store Byte Data in Register to Memory)
Stores the byte data in "Ri" to memory address "Rj".
■
STB (Store Byte Data in Register to Memory)
Assembler format: STB Ri, @Rj
Operation: Ri
→
(Rj)
Flag change:
N, Z, V, and C: Unchanged
Execution cycles: a cycle(s)
Instruction format:
Example: STB R3, @R2
N Z V C
– – – –
MSB LSB
0 0 0 1 0 1 1 0 Rj Ri
R2
12345678
1 2 3 4 5 6 7 8
0 0 0 0 0 0 2 1
R2
R3 R3 0 0 0 0 0 0 2 1
1 2 3 4 5 6 7 8
12345678 2 1 x x
Memory Memory
Before execution After execution
Instruction bit pattern : 0001 0110 0010 0011