Stb (Store Byte Data In Register To Memory) - Fujitsu FR Family Instruction Manual

7.79

STB (Store Byte Data in Register to Memory)

Store 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
0 0 0 1
R2
1 2 3 4 5 6 7 8
R3
0 0 0 0 0 0 2 1
Memory
12345678 x x
Before execution
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
0 1 1 0 Rj
LSB
Ri
R2
1 2 3 4 5 6 7 8
R3 0 0 0 0 0 0 2 1
Memory
12345678
2 1
After execution
175