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.
Read moreInteract with Atari’s 6502 Processor in BASIC XL (10-15 mins)
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
Read moreUse Strings to Store Assembly Language Code in Memory for Execution from BASIC (10-15 mins)
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
Read moreCall Assembly Language Code from Your BASIC Program (10-15 mins)
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
Read moreCompile and Run an Assembly Language Program for the Atari Computer (15-30 mins)
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
Read moreExplore KSquiggle’s Atari 8-bit Programming Shrine (15-30 mins)
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
Read moreLearn About Display List Interrupts in BASIC (1-2 hours)
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
Read moreRead the Book “De Re Atari” (3-6 hours)
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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