Perl 6

SMOP Mold: Revision 6

SMOP Mold is a register based interpreter implementation

A Mold frame is composed of three parts

* the number of registers used by the program (not counting the ones used to put constants or the 3 special ones)
* constants - which are put into registers
* opcodes

The registers 0,1,2 are initialised with

* interpreter
* identifier
* captures

Mold opcodes

* goto label - jumps to label
* call invocant,identifier,named,positionals,target
* call2 responder,capture,target
* br register,iftrue,iffalse - jumps to iftruel if the native bool in register is true to iffalse otherwise

Example in p6 syntax what would $*OUT.print("hello world\n") be translated to

my $out;
constant $OUT = "$*OUT";
constant $print = "print";
constant $curly = "postcircumfix:{ }";
constant $SMOP__S1P__RootNamespace = $SMOP__S1P__RootNamespace;
constant $hello_world = "hello world\n";
$out = $SMOP__S1P__RootNamespace.$curly($OUT);
$out.$print($hello_world);