Main Page

References

System architecture

• Extended Z80 instruction set
• Memory map and switching mechanics
• Reference machines and timing
• Boot Sequence
• Board feature control and port list
• Interrupts
• RPi0 Acceleration
• DMA
• Copper
• file formats
• Z80 programming

Video

• Enhanced ULA including video modes
• Tilemap
• Sprites
• Layer 2
• Palettes

Audio

• Turbo Sound Next
• SpecDrum/DAC

Firmware

• NextZXOS
• ESXDOS
• NextBASIC
• System Variables

Electronics

• Circuit Diagrams

Development Tools

Emulators

See main page: Emulators

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, scripted disassember plus an integrated Z80 emulator for a range of machines including partial Next support

Supports the Next opcodes directly

Supports remote debugging on the Next using ParaSys across a serial link

• Pasmo

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

Supports all currently known Next extension opcodes through this modified Pasmo from Russ McNulty and Tony Thompson and also now supports outputting .sna files to use with CSpect, thanks to Russ McNulty

• SNasm - included with the CSpect emulator

Supports the Next extension opcodes directly

• z80asm - part of Z88dk

Supports the Next extension opcodes directly, linking assembler with large z80 library, targets any memory configuration

• sjasmplus - z00m's fork

Supports all (core2.00.28) Next extension opcodes directly and it is under active development.

Compilers

• sccz80 and zsdcc - part of Z88dk

"sccz80" is a small c derived c compiler that is nearly c90 compliant with a few notable exceptions. Emphasis is on small code.

"zsdcc" is a fork of sdcc-z80 that is an open source optimizing c compiler with c90 and elements of c99 and c11 compliance.

A Next target is present and under development. Output file types include tap, sna, and esxdos dot commands.

• ZX Basic

A Basic to Z80 compiler with extensions added to Sinclair Basic.

Hardware Expansion

Your next computer can be expanded internally to add additional functionality.

• RTC - Real Time Clock
• Accelerator - Raspberry Pi Zero
• ESP2866

• Expansion - working on page

• Specnext Forums

A link to the forums discussing hardware additions

Community

• Official forums
• Facebook group
• Slack chat (sign up)

Sources

• Bibliography

Wiki "to do" list

• Wiki TODO list (can be used also as warning which pages may contain outdated information)