Home Computer Group #12

92 pages.

Digital Design

Devices zoo/6: EEPROM AT28C64 the write operation

Pillar 

the MSX Resource Center, Spectrum Computing.

Superfast
Input Output/2:  Wait state & interrupts, interrupt handler, 6502 & Z80, generator

Black screen
Stunning graphics with a BITter taste.
C64, 256 colors, ZX Spectrum,  Apple II

Hard to die:
TI99/4a

Next
Terminals

Smoke signal:
CRT/2 a monoscope generator for Commodore 128

GitHub

• Modern systems

  • Arduino FDC, a controller for floppy. 

• ZX Spectrum 

  • ZX FDD emulator 

  • ZX Circle, 

• Atari

  • ADRIVE MAX: the floppy emulator for Atari computers. 

  • SIO2SD: another floppy emulator for Atari.

• Amiga

  • fddEMU: an emulated floppy for real controllers. Amiga: DrawBridge and

  • GreaseWeazle: two ways to read amiga floppies without an amiga.

PCB
the prototype batch

ASM
arm itoa() function

Shop directory
Retroradionics, innovation, and great ideas for your Spectrum