IBM nec pd78p081(a2) User Manual
41
CHAPTER 3 CPU ARCHITECTURE
3.3.2 Immediate addressing
[Function]
Immediate data in the instruction word is transferred to the program counter (PC) and branched.
This function is carried out when the CALL !addr16 or BR !addr16 or CALLF !addr11 instruction is executed.
The CALL !addr16 and BR !addr16 instruction can branch in the entire memory space. The CALLF !addr11
instruction branches to an area of addresses 0800H through 0FFFH.
[Illustration]
In the case of CALL !addr16 and BR !addr16 instructions
15
0
PC
8 7
7
0
fa
10–8
11 10
0
0
0
0
1
6
4
3
CALLF
fa
7–0
15
0
PC
8 7
7
0
CALL or BR
Low Addr.
High Addr.
In the case of CALLF !addr11 instruction