Home Computer Group #19

#19 August 2023 - 257 pages

• Digital Design
  GAL in practice for real work projects

• Superfast
  Apple II the AY-3-8910 control signals and the read/write cycles 

• (X)dev
  Programming the GeoRAM in Assembler using the CC65, how to call the driver functions from assembler

• Commodore 64 games
  Nannando

• Commodore C16 games
  Atic Atac V1.9

• Apple II games
  Doctor says

• ZX Spectrum 128K games
  Ghastly Getaway Dizzy

• ZX Spectrum games
  Log Cabin Dizzy

• Black Screen
  256 Colours

• PCB
  I/O coprocessor for the ZX Spectrum, how to create two PCB from an hierarchical design

• Pitfall
  When Commodorians bite the expansion cards

• 3D print
  Before spending money on a printer

• Next
  Programming PICO PI, the UARTS and the libc

• Github
  VrEmu6502, Z80 and Aquarius+

• ASM
  Floating-point math in hardware with vFPU, quiet and signaling NaN, condition fields and much much more!

• ROI
  Commodore, Sinclair