::SHE+ILA::'s Code Generator [$70]

More about ::SHE+ILA::'s Code Generator [$70]

Having just discussed the parser, we now come to the Code Generator. This takes the parse tree and transforms it into executable instructions and data. This can be ::ILA:: sequences (Interactive Language Architecture, ::SHE+ILA::'s datapath and interpreter), for example "A+B*C" (where A,B,C may be numbers, quaternions, or even matrices) may produce
"$F8 $FA $2B $ED $E4 $81 $ED $F8 $FA $2A $ED $E4 $82 $ED $E4 $83 $00 $00"
where $F8 ... $ED ... $ED ... $00 means "node", $FA $2B means "add reduce the following vector", $FA $2A means "multiply reduce the following vector", $E4 $81 "means "Atom of A", $E4 $82 means "Atom of B", and $E4 $83 means "Atom of C". This ::ILA:: code is almost the same as the parse tree, since ::ILA:: interprets the semicompiled code stream. However an alternative code generator could output Assembler code (see "LEESHA"), C++ code, or even COBOL (giggle) code :) The latter remaineth an exercise for the reader... (hehehe)