Sth (Store Half-Word Data In Register To Memory) - Fujitsu FR Family Instruction Manual

7.77

STH (Store Half-word Data in Register to Memory)

Store the half-word data in "Ri" to memory address "(R13 + Rj)".
■ STH (Store Half-word Data in Register to Memory)
Assembler format: STH Ri, @(R13, Rj)
Operation: Ri → ( R13 + Rj)
Flag change:
N, Z, V, and C: Unchanged
Execution cycles: a cycle(s)
Instruction format:
Example: STH R3, @(R13, R2)
N Z V C
– – – –
MSB
0 0 0 1
R2
0 0 0 0 0 0 0 4
R3
0 0 0 0 4 3 2 1
R13 1 2 3 4 5 6 7 8
Memory
1234567A
1234567C x x x x
Before execution
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
0 0 0 1 Rj
LSB
Ri
R2
0 0 0 0 0 0 0 4
R3
0 0 0 0 4 3 2 1
R13 1 2 3 4 5 6 7 8
Memory
1234567A
1234567C 4 3 2 1
After execution
173