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sjasmplus

Command-line cross-compiler of assembly language for Z80 CPU (and R800/Z80N/i8080/LR35902 with Zilog-like syntax).

Supports many ZX-Spectrum specific directives, has built-in Lua scripting engine and 3-pass design.

For GNU/Linux, BSD, Raspberry Pi, macOS, and Windows. GNU make or CMake build+install methods for your convenience. For windows you can download pre-built executable (look for the sjasm....win.zip file near bottom of page in Assets section).

Main Features

• Full source of assembler available under BSD license, modify and extend as you wish
• Z80/R800/Z80N/i8080/LR35902 documented and undocumented opcodes support
• Macro language, defines, array of defines
• Built-in Lua scripting engine
• Conditional assembly, block repeating
• Modules (namespaces), local and temporary labels
• Source and binary file inclusion, include paths
• Multi file output, file updating, various types of exports
• Structures to work easily with structured data in memory (STRUCT pseudo-op)
• Virtual device mode for common machines: ZX 128, ZX Next, … (pseudo op DEVICE)
• ZX Spectrum specific directives and pseudo ops (SAVESNA, SAVETAP, SAVEHOB, INCHOB, INCTRD…)
• ZX Spectrum Next specific features and directives (Z80N, 8ki memory paging, SAVENEX)
• Correctness is assured by Cirrus-CI with 256+ automated tests (that's also 256+ examples of usage!)
• Fake instructions as LD HL,DE (LD H,D:LD L,E) and more
• Code inlining through colon (LD A,C:INC A:PUSH AF:IFDEF FX:LD A,D:ENDIF…)
• Very fast compilation: 1 million lines by 2-3 seconds on modern computer
• Multiline block comments and user’s messages

See Installation page for installation details.

See Documentation for full details (it is also included in the binary-release zip for offline viewing).

This repository was created by import from original Aprisobal's repository @ https://sourceforge.net/projects/sjasmplus/.