01 — LISP-1 / MULTIPLATAFORMA
MyLISP
A LISP-1 interpreter originally developed for Sinclair QL and later ported to ZX Spectrum Next and Commodore MEGA65. A shared language across platforms supports functional programming and symbolic algebra examples.
Sinclair QLZX Spectrum NextMEGA65LISP-1CAS
Sinclair QL
MyLISP
Original Pascal version; binaries and manuals in Spanish and English.
ZX Spectrum Next
MyLISP NEXT
C/z88dk port, banked memory, garbage collection and NEX executable.
Commodore MEGA65
MyLISP65
Calypsi port, Attic RAM, exact rational arithmetic and D81 disk images.
02 — FORTRAN 77 / ZX SPECTRUM NEXT
MyFortran
Native Fortran 77 compiler for ZX Spectrum Next with a built-in editor. Write, compile and generate standalone .nex files directly on the machine, without cross-compiling. The compiler core is written in C.
Fortran 77ZX Spectrum NextC / Z800.11
Educational project with design documentation, automated tests and an MIT license.
03 — ÁLGEBRA SIMBÓLICA / LISP
Design and Structure of a CAS
Learn LISP from scratch and build a symbolic computer algebra system, chapter by chapter.
The project builds a CAS from first principles, representing expressions as LISP lists and performing substitution, simplification and symbolic differentiation. It includes CAS.LSP, PCAS.LSP tests and a complete free book in both languages.
