Download USER`S MANUAL ERRATA

Transcript
INSTRUCTION SET
S3C80A4/C80A8/C80A5/C80B4/C80B8/C80B5
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)
1
10
0F
opc
Example:
The following diagram shows one example of how to use the NEXT instruction.
Before
Address
IP
After
Data
Address
0043
IP
Address
PC
0120
43
44
45
120
Data
Address H 01
Address L 10
Address H
Next
Memory
6-60
Data
0045
Address
PC
0130
43
44
45
130
Data
Address H
Address L
Address H
Routine
Memory