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Section 2 CPU
Rev. 4.00 Sep. 14, 2005 Page 48 of 982
REJ09B0023-0400
2.4 Instruction
Formats
2.4.1
CPU Instruction Addressing Modes
The following table shows addressing modes and effective address calculation methods for
instructions executed by the CPU core.
Table 2.11 Addressing Modes and Effective Addresses for CPU Instructions
Addressing
Mode
Instruction
Format
Effective Address Calculation Method
Calculation Formula
Register direct
Rn
Effective address is register Rn.
(Operand is register Rn contents.)
Register indirect
@Rn
Effective address is register Rn contents.
Rn
Rn
Rn
Register
indirect with
post-increment
@Rn+
Effective address is register Rn contents.
A constant is added to Rn after instruction
execution: 1 for a byte operand, 2 for a word
operand, 4 for a longword operand.
Rn
Rn
1/2/4
+
Rn + 1/2/4
Rn
After instruction execution
Byte: Rn + 1
→
Rn
Word: Rn + 2
→
Rn
Longword: Rn + 4
→
Rn
Register
indirect with
pre-decrement
@–Rn
Effective address is register Rn contents. It is
decremented by a constant beforehand: 1 for
a byte operand, 2 for a word operand, 4 for
a longword operand.
Rn
1/2/4
Rn – 1/2/4
–
Rn – 1/2/4
Byte: Rn – 1
→
Rn
Word: Rn – 2
→
Rn
Longword: Rn – 4
→
Rn
(Instruction executed with Rn
after calculation)
Содержание HD6417641
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Страница 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
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Страница 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Страница 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Страница 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Страница 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Страница 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Страница 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Страница 500: ...Section 13 Direct Memory Access Controller DMAC Rev 4 00 Sep 14 2005 Page 450 of 982 REJ09B0023 0400...
Страница 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Страница 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Страница 734: ...Section 18 Multi Function Timer Pulse Unit MTU Rev 4 00 Sep 14 2005 Page 684 of 982 REJ09B0023 0400...
Страница 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Страница 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Страница 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Страница 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Страница 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Страница 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
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Страница 1036: ...SH7641 Hardware Manual...