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Fun projects for your Atari 8-bit home computers and video game consoles

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Tag: Assembly

Learn to Implement Page Flipping in BASIC on Atari 8-Bit Computers (30-60 mins)

March 28, 2021 moorejh Graphics, Programming

Task: Learn to Implement Page Flipping in BASIC on Atari 8-Bit Computers Needed: Altirra emulator Time: 30-60 mins Introduction We previously covered moving data on and off the screen as part of coarse horizontal and vertical scrolling by changing the memory address of the screen

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Read Assembly Language from Floppy Disk for Execution in BASIC (15-30 mins)

December 5, 2020 moorejh Programming

Task: Read Assembly Language from Floppy Disk for Execution in BASIC Needed: Altirra emulator or Atari 8-bit computer, BASIC Time: 15-30 mins Introduction I have previously written posts about calling assembly language commands from BASIC. The general idea is to convert assembly language mnemonics (e.g.

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Interact with Atari’s 6502 Processor in BASIC XL (10-15 mins)

March 14, 2020 moorejh Demos, Hardware, Programming, Software, Utilities

Task: Interact with Atari’s 6502 Processor in BASIC XL Needed: A BASIC XL cartridge or Altirra emulator Time: 10-15 minutes Introduction The 6502 processor developed by Chuck Peddle and his team at MOS Technology was the first inexpensive CPU available in the 1970s. This CPU

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Use Strings to Store Assembly Language Code in Memory for Execution from BASIC (10-15 mins)

January 4, 2020 moorejh Programming

Task: Use Strings to Store Assembly Language Code in Memory for Execution from BASIC Needed: A BASIC cartridge or Altirra emulator Time: 10-15 minutes Introduction I previously demonstrated how to POKE assembly language code into page 6 of memory for execution by BASIC using the

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Call Assembly Language Code from Your BASIC Program (10-15 mins)

January 1, 2020 moorejh Programming

Task: Call Assembly Language Code from Your BASIC Program Needed: A BASIC cartridge or Altirra emulator Time: 10-15 minutes Introduction In my previous post on writing, compiling, saving, debugging, and running assembly language programs with the MAC/65 assembler, I referred the reader to Chapter 5

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Compile and Run an Assembly Language Program for the Atari Computer (15-30 mins)

January 1, 2020 moorejh Programming

Task: Compile and Run an Assembly Language Program for the Atari Computer Needed: MAC/65 cartridge or Altirra emulator Time: 15-30 minutes Introduction I dabbled in assembly as a kid but never became a pro. I taught myself 6502 assembly later in life and became good

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Explore KSquiggle’s Atari 8-bit Programming Shrine (15-30 mins)

April 28, 2019 moorejh Programming, Web Resources

Task: Explore KSquiggle’s Atari 8-bit Programming Shrine Needed: Web browser Time: 15-30 mins Introduction Bill Lange pointed me to this awesome Atari 8-bit programming resource developed and maintained by Kevin Chase (aka KSquiggle). I had seen this before but it was great to get it on

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Learn About Display List Interrupts in BASIC (1-2 hours)

November 23, 2018 moorejh Graphics, Programming

Task: Learn About Display List Interrupts in BASIC Needed: BASIC  Time: 1-2 hours Introduction Atari was far ahead of its competitors when it was released with superior graphics. This was largely due to the ANTIC chip that served as a graphics processor with its own

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Read the Book “De Re Atari” (3-6 hours)

November 17, 2018 moorejh Books, Programming

Task: Read the Book “De Re Atari”  Needed: De Re Atari  Time: 3-6 hours Introduction When the Atari 400 and 800 computers were released in 1979 they were a closed system. That is, only Atari personnel knew the details of the hardware that were necessary

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