Siemens SAB 80515 Series User Manual page 162

INC DPTR
Function: Increment data pointer
Description: Increment the 16-bit data pointer by 1. A 16-bit increment (modulo 2
an overflow of the low-order byte of the data pointer (DPL) from 0FF H to 00 H will
increment the high-order byte (DPH). No flags are affected.
This is the only 16-bit register which can be incremented.
Example: Registers DPH and DPL contain 12 H and 0FE H , respectively. The instruction
sequence
INC
INC
INC
will change DPH and DPL to 13 H and 01 H .
Operation: INC
(DPTR) ← (DPTR) + 1
Encoding: 1 0 1 0
Bytes: 1
Cycles: 2
Semiconductor Group
DPTR
DPTR
DPTR
0 0 1 1
*
162
Instruction Set
16 ) is performed;