CSpect vs Klive IDE

CSpect is a ZX Spectrum Next emulator for Windows, macOS, and Linux, intended mainly as a development tool. It can also run games and the full ZXNextOS environment. The maker describes it as an emulator, assembler, and debugger. Its ULA overlay support provides access to an extra 24 kB of RAM; the debugger can be resized, and the `-dscale` option enlarges its text. CSpect supports z88dk map files directly and lists plugins for symbols, Pasta/80 symbol loading, and z88dk map-file loading. The iCSpect interface includes `AddSymbol()` and `HexToInt64(string)`. Linux shell scripts are included in the release archive. To run the full machine environment, the release notes describe a `ZXOS.BAT` file for downloading and installing the ZX Spectrum Next SD card image. CSpect is free. The maker says there is no support or warranty and advises users to assume updates will not be released. Password-protected Patreon beta builds are a perk for Builder-level Patreons, and redistribution is not permitted.

Klive IDE combines a retro-computer emulator with development tools for Sinclair Z80-based machines. It supports Z80 Assembly, ZX BASIC (Boriel's Basic) and SJASMPLUS; its native assembler is built in, while the latter two rely on external toolchains. A one-click workflow compiles a program, places it in the emulated machine, then runs or debugs it with breakpoints. Active emulators cover ZX Spectrum 48K and 128K, ZX Spectrum +2E/+3E, and Cambridge Z88; ZX Spectrum Next support is in progress. The Monaco-based editor provides VS Code keyboard shortcuts, syntax highlighting, diagnostics, code folding and symbol navigation. Debug views include CPU and ULA state, memory, disassembly, watches, BASIC listings and system variables. Klive loads TAP and TZX tape files and DSK disks for ZX Spectrum +3E, and exports TAP, TZX or Intel HEX. It also offers a scripting engine for commands and build pipelines, and can record emulator video with stereo audio. The IDE is free, MIT licensed, and available for macOS, Windows and Linux.