FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E - Manual (Page 265)

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CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.124 ADDSP (Add Stack Pointer and Immediate Data)
Adds 4 times the immediate data as a signed extended value, to the value in "R15".
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ADDSP (Add Stack Pointer and Immediate Data)
Assembler format: ADDSP #s10
Operation: R15 + exts (s8 × 4)
→
R15
Flag change:
N, Z, V, and C: Unchanged
Execution cycles: 1 cycle
Instruction format:
Example: ADDSP # – 4
N Z V C
– – – –
MSB LSB
1 0 1 0 0 0 1 1 s8
R15 8 0 0 0 0 0 0 0 R15 7 F F F F F F C
Instruction bit pattern : 1010 0011 1111 1111
Before execution After execution