DP80390 datasheet(68/84 Pages) DCD

Numer części	DP80390

Szczegółowy opis	Pipelined High Performance Microcontroller Instructions set details ver 3.10

PDF	84 Pages

Scroll/Zoom	100%

Producent	DCD [Digital Core Design]

Strona internetowa	http://www.digitalcoredesign.com

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68 / 84 page

DP80390 Instructions set details

- 68 -

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3.32.

RET *

3.32.1.

LARGE

Function:

Return from subroutine

Description:

RET pops the PC successively from the stack, decrementing the stack

pointer by two. Program execution continues at the resulting address,

generally the instruction immediately following an ACALL or LCALL. No

flags are affected.

Operation:

(PC15-8)

← ((SP))

(SP)

← (SP) - 1

(PC7-0)

← ((SP))

(SP)

← (SP) - 1

Bytes:

Cycles:

Encoding:

3.32.2.

FLAT

Function:

Return from subroutine

Description:

RET pops the PC successively from the stack, decrementing the stack

pointer by three. Program execution continues at the resulting address,

generally the instruction immediately following an ACALL or LCALL. No

flags are affected.

Operation:

(PC23-16)

← ((SP))

(SP)

← (SP) - 1

(PC15-8)

← ((SP))

(SP)

← (SP) - 1

(PC7-0)

← ((SP))

(SP)

← (SP) - 1

Bytes:

Cycles:

Encoding:

* instruction modified regarding to standard 80C51

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