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Sth (store half-word data in register to memory) – FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E User Manual

Page 196

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CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS

7.76

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

Stores the half-word data in "Ri" to memory address "Rj".

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

Assembler format:

STH Ri, @Rj

Operation:

Ri

(Rj)

Flag change:

N, Z, V, and C: Unchanged

Execution cycles:

a cycle(s)

Instruction format:

Example:

STH R3, @R2

N

Z

V

C

MSB

LSB

0

0

0

1

0

1

0

1

Rj

Ri

R2

12345678

1 2 3 4

5 6 7 8

0 0 0 0

4 3 2 1

R2

R3

R3

0 0 0 0

4 3 2 1

1 2 3 4

5 6 7 8

12345678

4 3 2 1

x x x x

Memory

Memory

Before execution

After execution

Instruction bit pattern : 0001 0101 0010 0011