This page (revision-53) was last changed on 24-May-2023 06:18 by Peter Dell 

This page was created on 05-Apr-2014 09:34 by Gromit

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Version Date Modified Size Author Changes ... Change note
53 24-May-2023 06:18 3 KB Peter Dell to previous Add year of first release
52 21-May-2023 18:32 2 KB Peter Dell to previous | to last
51 21-May-2023 18:30 2 KB Peter Dell to previous | to last Sort order
50 21-May-2023 18:30 2 KB Peter Dell to previous | to last Add tutorials
49 21-May-2023 18:28 2 KB Peter Dell to previous | to last Adapt wording, order and URLs (too https)
48 03-Feb-2023 15:21 2 KB Roland B. Wassenberg to previous | to last
47 31-Mar-2020 22:14 2 KB Roland B. Wassenberg to previous | to last 130XE+ Makroassembler V2.1 mit MyDOS 4.50 (1991) ==> 130XE+ Makroassembler
46 26-May-2019 16:17 2 KB Roland B. Wassenberg to previous | to last
45 08-Mar-2019 21:25 2 KB Roland B. Wassenberg to previous | to last
44 08-May-2018 17:02 2 KB Maury Markowitz to previous | to last
43 08-May-2018 17:02 2 KB Maury Markowitz to previous | to last
42 08-May-2018 17:02 2 KB Maury Markowitz to previous | to last
41 08-May-2018 17:01 2 KB Maury Markowitz to previous | to last Atari Macro Assembler and Program-Text Editor CX8121 ==> Atari Macro Assembler

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Given the slow performance of [Atari BASIC], the go-to language for programmers writing games or other speed-critical programs was 6502 assembler. The 6502 was somewhat infamous for its simplified design, but this also meant its assembler was very simple and easy to learn. As an introduction to assembler, there are few machines better than the Atari 8-bit.
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The first assembler for the Atari available to the public was [Atari Assembler Editor], originally written by Shepardson Microsystems and sold by Atari in ROM cartridge format. Assembler Editor lacked many features, and was only suitable for small programs. For more demanding tasks, Atari also released [Atari Macro Assembler]. Although powerful, Macro Assembler was slow as it was entirely disk based. This led to a thriving market for 3rd party assemblers and debuggers to fix the problems seen in one or the other.
In recent years, a number of cross-compilers have appeared. These allow you to develop Atari assembler programs on your PC or Mac and then send the code to the Atari (or emulator) for testing. These greatly ease the task of writing programs as you have access to modern IDE systems and editors.
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* [6502 OpCodes.xlsx] ; Excel table with all opcodes and comparision between different Assemblers
* [6502 OpCodes.xlsx] ; Excel table with all opcodes and comparisons between different Assemblers
* [6502-Codes.pdf] ; Table with all OpCodes, cycles, flags, comments etc., highly recommended! Thanks to [insane|https://insane.tscc.de/] from ABBUC :-)
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* [Atari Macro Assembler and Program-Text Editor CX8121]
* [Atari Macro Assembler]
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* [DataSoft Datasm/65|DataSoft Datasm-65]
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* [130XE+ Makroassembler V2.1 mit MyDOS 4.50 (1991)]
* [130XE+ Makroassembler]
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* [Alfasm]
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* [MC macroassembler by Microtec Research] ; often found in Atari source code listings, therefore at least used by Atari, Inc.
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!!Books
* [The Atari Assembler|http://www.atarimania.com/documents/The-Atari-Assembler.pdf] ; detailed and easy-to-read introduction to programming 6502-assembly on the Atari using Assembler/Editor.