Next – Samsung S3F80JB User Manual

Page 188

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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

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