DR805X Datasheet, PDF(37/79 Page) Digital Core Design – 8-bit RISC Microcontroller Instructions set details ver 3.10

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DR805X Datasheet, PDF (37/79 Pages) Digital Core Design – 8-bit RISC Microcontroller Instructions set details ver 3.10

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DR805x Instructions set details

3.13.3.

INC DIRECT

- 37 -

Operation: (PC) â (PC) + 2

(direct) â (direct) + 1

Bytes:

Cycles:

Encoding:

00000101

3.13.4.

INC @RI

Operation: (PC) â (PC) + 1

((Ri)) â ((Ri)) + 1

Bytes:

Cycles:

Encoding:

0000011 i

direct address

3.13.5.

INC DPTR

Function: Increment data pointer

Description: Increment the 16-bit data pointer by 1. A 16-bit increment (modulo 2 16)

is performed; 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.

Operation: (PC) â (PC) + 1

(DPTR) â (DPTR) + 1

Bytes:

Cycles:

Encoding:

10100011

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