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ZX SPECTRUM Z80 ROMS HOW TO

This version has been developed using PlatformIO.

Better AY-3-8912 emulation (128K sound is still a little dirty).

ZX SPECTRUM Z80 ROMS HOW TO

TAP tape image loading (still investigating how to do it).Synchronizing video generation with CPU T-states, for allowing some tricky multi-colour modes to work.Original Spectrum Keyboard support, using 8 + 5 contacts ribbon connectors connected to 13 ESP pins.Internal SPIFFS support / external SD card support (only one of both, see hardconfig.h).Quick (to memory) and persistent snapshot saving and loading (both 48K and 128K supported).Support for two aspect ratios: 16:9 or 4:3 monitors (using 360x200 or 320x240 modes).VGA OSD menu: Configuration, architecture, ROM and SNA/Z80 selection.Wiimote support with per-game key assignments.PS/2 Keyboard used as input for Spectrum keys.128K sound: AY-3-8912 sound chip emulation (incomplete but working).48K sound: beeper digital output, good PWM sound using JLS CPU core.

Contended memory algorithm for very precise timing on 48K, a little less precise on 128K.

Dual Z80 emulators, selectable in compile time using #defines: the precise one (JLS), and the fast one (LKF).

Accurate Z80 emulation, with enhanced timing and fast video generation.

VGA output, 3 bit, 6 bit (default), 14 bit (untested).Spectrum 128/+2/+3 architecture emulation with PSRAM.Spectrum 16/48 architecture emulation without PSRAM.

This is a fork of the ZX-ESPectrum project, based on it, but with some enhancements. If you have a LilyGo TTGo VGA32, please check the lilygo-ttgo-vga32 branch. Please watch the project video on YouTube (spanish audio, english subtitles). There are per-game customizable (through simple text files) correspondences from Wiimote keys to Spectrum keys. Z80 format (48/128), micro SD card, 4:3 aspect ratio.Īn emulation of the ZX-Spectrum computer on an ESP32 chip with VGA output based on bitluni's driver, with PS/2 keyboard support, using a Wiimote as input device, based on bigw00d's driver.