Work on interpreter. adding more opcodes and syscalls.

contrib/vim/indent/dst.vim

@@ -0,0 +1,17 @@
+" Vim filetype plugin file
+" Language: DST
+" Maintainer: Calvin Rose
+
+if exists("b:did_indent")
+	finish
+endif
+let b:did_indent = 1
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+setlocal noautoindent nosmartindent
+setlocal softtabstop=2 shiftwidth=2 expandtab
+setlocal indentkeys=!,o,O
+
+let &cpo = s:cpo_save