Main Page

Base references

• Extended Z80 instruction set
• Memory map
• Reference machines
• Boot Sequence
• Enhanced ULA including video modes
• Board feature control
• Interrupts
• Turbo Sound Next
• SpecDrum/DAC
• Sprites
• Layer 2
• ESXDOS
• RPi0 Acceleration

Development Tools

Emulators

• CSpect emulates many features of the Next and includes an assembler.
• ZEsarUX aims to emulate all features of the Next and includes remote debugger support.

Assemblers

Any Z80 assembler can produce code suitable for the Next. However, the Next and most emulators cannot load raw blocks of Z80 code, so a Spectrum specific tool will be useful for creating .TZX or .TAP files with the necessary loaders.

• Zeus-ish

Provides a complete Z80 IDE and Macro assembler, plus an integrated Spectrum emulator

The emulator does not support all features of the next

• Pasmo

A long established Z80 assembler, but has been out of development for a long time

Supports most of the Next extension opcodes through macros from Russ McNulty

• SNasm - included with the CSpect emulator

Supports the Next extension opcodes directly

Compilers

• Z88dk is a C to Z80 compiler which is developing support for the Next. It includes an assembler that will accept the new ZX Next opcodes.
• ZX Basic is a Basic to Z80 compiler with extensions added to Sinclair Basic.