Hello 42!

Well. I passed a major milestone tonight. The egel interpreter evaluated a hello world application.

Given input

def main = 42

It produces bytecode

SYMBOLS: 
       0:main
DATA: 
       0:42
       1:main (4)
begin
000000 takex r1 r5 r0 i0
0x0009 fail 0x001f
0x000e data r6 0   ; 42
0x0015 set r1 r2 r6
0x001c return r3
0x001f array r7 r2 r1
0x0026 concatx r8 r7 r0 i4
0x002f set r1 r2 r8
0x0036 return r3
end

Which when run

[marco@stallion src]$ ./egel 42.eg 
42

It core dumps on more complex expressions, of course. I hand checked generated code, which looks okay-ish for small examples, so I'll be stuck debugging the bytecode interpreter for a while.



Guess I'll commit to github after that.