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PM0044 데이터시트(PDF) 48 Page - STMicroelectronics

부품명 PM0044
상세설명  STM8 CPU programming manual
PDF  162 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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PM0044 데이터시트(HTML) 48 Page - STMicroelectronics

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STM8 addressing modes
PM0044
48/162
Doc ID 13590 Rev 3
6.8
Indirect Indexed (Short Pointer Long, Long Pointer Long,
Long Pointer Extended) addressing mode
This is a combination of indirect and indexed addressing mode. The data byte required for
the operation is found by its memory address, which is defined by the unsigned addition of
an index register value (X or Y) with a pointer value located in memory. The pointer address
follows the op-code.
The indirect indexed addressing mode is made of four sub-modes:
Table 31.
Overview of Indirect indexed instructions
Addressing mode
Syntax
EA formula
Ptr Adr
Ptr Size
Dest adr
Short Pointer
Long
Indirect
Indexed ([shortptr.w],ndx) ((shortptr.w) + ndx) 00..FF
Word
000000.01FFFE
Long Pointer
Long
Indirect
Indexed ([longptr.w],ndx)
([longptr.w] +ndx)
00..FFFF
Word
000000.01FFFE
Long Pointer
Extended
Indirect
Indexed ([longptr.e],ndx)
([longptr.e] +ndx)
00..FFFF
Extword
000000.FFFFFE
Table 32.
Available Long Pointer Long and Short Pointer Long Indirect
Indexed instructions
Instructions
Functions
LD, LDW
Load
CP
Compare
AND, OR, XOR
Logical Operations
ADC, ADD, SUB, SBC
Arithmetic Addition/Subtraction operations
BCP
Bit Compare
CALL, JP
Call or Jump subroutine
Table 33.
Available Long Pointer Long Indirect Indexed instructions
Instructions
Functions
CLR
Clear
TNZ
Test Negative or Zero
CPL, NEG
1’s or 2’s Complement
SLA,SLL, SRL, SRA, RLC, RRC
Shift and Rotate Operations
SWAP
Swap Nibbles
INC, DEC
Increment/Decrement
Table 34.
Long Pointer Extended Indirect Indexed instructions instruction
Instructions
Functions
LDF
Far load



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