zxsp is a simulator for the historic Sinclair ZX home computer families.

Supported machines:

• ZX Spectrum 16k, 48k, 128k, +2, +2A and +3.
• Spanish and French versions. Brazilian TK90X and TK95. Portuguese TK2048.
• TC2068, TS2068 and U2086
• ZX80, ZX81, TS1000, TS1500 and TK85
• Jupiter Ace

Features:

• Multiple instances
• Fullscreen mode
• Excellent stereo sound
• Precise screen and border effects
• Virtual tape recorder, keyboards and extensions
• Save highres and flashing Gif screenshots and record Gif movies
• Integrated debugger
• Instant-load and save tape files

Supported file formats:

.sna, .z80, .ace, .tap, .tzx, .80, .81, .o, .p, .wav, .aiff, .rom, .dck, .dsk, .img, .iso, .hdf, .asm and .scr files

Supported real-world machinery:

• Load from and save to real-world Specci or cassette recorder
• USB joysticks and game pads

Supported virtual peripherals:

• Tape recorder
• Misc. joystick interfaces
• Built-in joystick ports
• Interface 2 for joysticks and rom cartridge
• Kempston mouse interface
• DivIDE hard disc interface
• SPECTRA video interface
• Third party AY sound modules for the ZX81 and ZX Spectrum
• Lenslok
• Currah µSpeech
• Romantic Robots Multiface 1, 128 and +3

Integrated debugger:

• Load assembler source files
• Single stepper
• Z80 and AY sound chip register display & edit
• Memory view & edit and disassembly & inline assembler
• Breakpoints for exec, read or write access
• Video beam position indicator