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DP80390 датащи(PDF) 68 Page - Digital Core Design

номер детали DP80390
подробное описание детали  Pipelined High Performance Microcontroller Instructions set details ver 3.10
PDF  84 Pages
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производитель  DCD [Digital Core Design]
домашняя страница  http://www.digitalcoredesign.com
Logo DCD - Digital Core Design

DP80390 датащи(HTML) 68 Page - Digital Core Design

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DP80390 Instructions set details
- 68 -
All trademarks mentioned in this document
http://www.DigitalCoreDesign.com
are trademarks of their respective owners.
http://www.dcd.pl
Copyright 1999-2003 DCD – Digital Core Design. All Rights Reserved.
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:
1
Cycles:
4
Encoding:
0
0
1
0
0
0
1
0
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:
1
Cycles:
5
Encoding:
0
0
1
0
0
0
1
0
* instruction modified regarding to standard 80C51



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