r3 is a concatenative language of the forth family, more precisely it takes elements of the ColorForth, the colors that have the words internally are encoded by a prefix, in r3 this prefix is explicit.
This is the virtual machine, load main.r3, compile in bytecodes (really are dwordcodes) and interpret this code.
Change in r3.cpp comment all
//#define DEBUGWORD
//#define VIDEOWORD
//#define LINUX
//#define RPI // Tested on a Raspberry PI 4
Compile with devcpp(5.11), is a GCC for windows, with SDL and SDL_MIXER packages.
Change in r3.cpp uncomment LINUX
//#define DEBUGWORD
//#define VIDEOWORD
#define LINUX
//#define RPI // Tested on a Raspberry PI 4
I do this with, Xubuntu 20, with GCC, need instaled SDL and SDL_MIXER
$ make clean
$ make
$ chmod +x ./r3lin
Can compile in emscripten too. emscriptenbuild.sh is the make.
To compile the mac version:
A separate files, r3mac.cpp and r3graf.cpp.
c++ -Ofast -fpermissive -c -o grafmac.o grafmac.cpp
c++ -Ofast -fpermissive -c -o r3mac.o r3mac.cpp
g++ grafmac.o r3mac.o -o r3mac -lSDL2main -lSDL2 -lSDL2_mixer
compiler suite and SDL2* installed through brew.
