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INSTRUCTION SET S3F80JB
6-60
NEXT — Next
NEXT
Operation: 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: The following diagram shows one example of 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