Ldi:20 (Load Immediate 20-Bit Data To Destination Register) - Fujitsu FR Family Instruction Manual

CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.54 LDI:20 (Load Immediate 20-bit Data to Destination
Register)
Extend the 20-bit immediate data with 12 zeros in the higher bits, load to "Ri".

■ LDI:20 (Load Immediate 20-bit Data to Destination Register)

Assembler format: LDI:20 #i20, Ri
Operation: extu (i20) → Ri
Flag change:
N, Z, V, and C: Unchanged
Execution cycles: 2 cycles
Instruction format:
Example: LDI:20 #54321H, R3
148
N Z V C
– – – –
MSB
(n+0) 1 0 0
(n+2)
R3
0 0 0 0 0 0 0 0
Before execution
i20(higher)
1 1 0 1 1
i20(lower)
LSB
Ri
R3
0 0 0 5 4 3 2 1
After execution