FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E User Manual
Page 195
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171
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.75
ST (Store Word Data in Program Status Register to Memory)
Subtracts 4 from the value of "R15", stores the word data in the program status (PS) to
the memory address indicated by the new value of "R15".
■
ST (Store Word Data in Program Status Register to Memory)
Assembler format:
ST PS, @ – R15
Operation:
R15 – 4
→
R15
PS
→
(R15)
Flag change:
N, Z, V, and C: Unchanged
Execution cycles:
a cycle(s)
Instruction format:
Example:
ST PS, @ – R15
N
Z
V
C
–
–
–
–
MSB
LSB
0
0
0
1
0
1
1
1
1
0
0
1
0
0
0
0
12
3
45670
R15
R15
F F F
8
F
8
C 0
F F F
8
F
8
C 0
12
3
45670
12
3
45674
12
3
45674
1 2
3
4
5 6 7
8
F F F
8
F
8
C 0
P
S
1 2
3
4
5 6 7 4
P
S
x x x x
x x x x
Memory
Memory
Before exec
u
tion
After exec
u
tion
In
s
tr
u
ction
b
it p
a
ttern : 0001 0111 1001 0000
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