60 ld (load word data in memory to register), Ld (load word data in memory to register) – FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E User Manual
Page 178
Advertising
154
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.60
LD (Load Word Data in Memory to Register)
Loads the word data at memory address "R15" to "Rj", and adds 4 to the value of "R15".
If "R15" is given as parameter "Ri", the value read from the memory will be loaded into
memory address "R15".
■
LD (Load Word Data in Memory to Register)
Assembler format:
LD @ R15 +, Ri
Operation:
(R15)
→
Ri
R15 + 4
→
R15
Flag change:
N, Z, V, and C: Unchanged
Execution cycles:
b cycle(s)
Instruction format:
Example:
LD @ R15 +, R3
N
Z
V
C
–
–
–
–
MSB
LSB
0
0
0
0
0
1
1
1
0
0
0
0
Ri
12345678
1234567C
1 2 3 4
5 6 7 8
R3
R15
8 7 6 5
4 3 2 1
12345678
1234567C
8 7 6 5
4 3 2 1
R3
1 2 3 4
5 6 7 C
8 7 6 5
4 3 2 1
R15
x x x x
x x x x
Memory
Memory
Before execution
After execution
Instruction bit pattern : 0000 0111 0000 0011
Advertising