Microchip AT32UC3C2256C Manual

Microchip Ikke kategoriseret AT32UC3C2256C

Læs gratis den danske manual til Microchip AT32UC3C2256C (45 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 16 personer og har en gennemsnitlig bedømmelse på 4.1 stjerner ud af 8.5 anmeldelser. Har du et spørgsmål om Microchip AT32UC3C2256C, eller vil du spørge andre brugere om produktet?

Download PDF

Side 1/45

AVR Assembler

Preface

Welcome to the Microchip AVR® Assembler.

The Assembler generates fixed code allocations, consequently no linking is necessary.

The AVR Assembler is the assembler formerly known as AVR Assembler 2 (AVRASM2). The former

AVRASM distributed with AVR Studio® 4 has now been obsoleted and will not be distributed with current

products.

For documentation on the instruction set of the AVR family of microcontrollers, refer to the 8-bit AVR

Instruction Set Manual.

Table of Contents

Preface............................................................................................................................ 1

1. AVR Assembler Known Issues.................................................................................. 4

2. AVR Assembler Command Line Options...................................................................7

3. Assembler Source....................................................................................................11

4. AVR Assembler Syntax............................................................................................12

4.1. Keywords....................................................................................................................................12

4.2. Preprocessor Directives............................................................................................................. 12

4.3. Comments..................................................................................................................................12

4.4. Line Continuation....................................................................................................................... 12

4.5. Integer Constants.......................................................................................................................12

4.6. Strings and Character Constants............................................................................................... 12

4.7. Multiple Instructions per Line......................................................................................................13

4.8. Operands....................................................................................................................................13

5. Assembler Directives...............................................................................................14

5.1. BYTE..........................................................................................................................................14

5.2. CSEG......................................................................................................................................... 14

5.3. CSEGSIZE................................................................................................................................. 14

5.4. DB.............................................................................................................................................. 15

5.5. DD.............................................................................................................................................. 15

5.6. DEF............................................................................................................................................ 16

5.7. DQ..............................................................................................................................................16

5.8. DSEG......................................................................................................................................... 16

5.9. DW............................................................................................................................................. 17

5.10. ELIF and ELSE...........................................................................................................................17

5.11. ENDIF.........................................................................................................................................17

5.12. ENDM and ENDMACRO............................................................................................................18

5.13. EQU............................................................................................................................................18

5.14. ERROR...................................................................................................................................... 18

5.15. ESEG......................................................................................................................................... 19

5.16. EXIT........................................................................................................................................... 19

5.17. IF, IFDEF, and IFNDEF...............................................................................................................19

5.18. INCLUDE....................................................................................................................................20

5.19. LIST............................................................................................................................................20

5.20. LISTMAC....................................................................................................................................21

5.21. MACRO......................................................................................................................................21

5.22. MESSAGE..................................................................................................................................21

5.23. NOLIST...................................................................................................................................... 22

5.24. ORG........................................................................................................................................... 22

5.25. OVERLAP and NOOVERLAP....................................................................................................23

5.26. SET............................................................................................................................................ 23