Samsung S3F84B8 - NEXT - Next

S3F84B8_UM_REV 1.00 6 INSTRUCTION SET
6-59
6.3.46 NEXT — NEXT
NEXT
Opera
tion: PC  @ IP
IP  IP + 2
The NEXT instruction is useful when implementing threaded-code languages. The program
memory word that is pointed to by the instruction pointer is loaded into the program counter. The
instruction pointer is then incremented by two.
Flags: No flags are affected.
Format:
Bytes Cycles Opcode
(Hex)
opc 1 10 0F
Example: Figure 6-5
shows an example about how to use the NEXT instruction.
Data
01
10
Before After
0045
IP
Address Data
0130
PC
43
44
45
Address H
Address L
Address H
Address Data
Memory
130 Routine
0043
IP
Address Data
0120
PC
43
44
45
Address H
Address L
Address H
Address Data
Memory
120 Next
Figure 6-5 Example of the Usage of the NEXT Instruction