vm/words.cpp

   1 #include "master.hpp"
   2
   3 namespace factor
   4 {
   5
   6 word *allot_word(cell vocab_, cell name_)
   7 {
   8         gc_root<object> vocab(vocab_);
   9         gc_root<object> name(name_);
  10
  11         gc_root<word> new_word(allot<word>(sizeof(word)));
  12
  13         new_word->hashcode = tag_fixnum((rand() << 16) ^ rand());
  14         new_word->vocabulary = vocab.value();
  15         new_word->name = name.value();
  16         new_word->def = userenv[UNDEFINED_ENV];
  17         new_word->props = F;
  18         new_word->counter = tag_fixnum(0);
  19         new_word->pic_def = F;
  20         new_word->pic_tail_def = F;
  21         new_word->subprimitive = F;
  22         new_word->profiling = NULL;
  23         new_word->code = NULL;
  24
  25         jit_compile_word(new_word.value(),new_word->def,true);
  26         update_word_xt(new_word.value());
  27
  28         if(profiling_p)
  29                 relocate_code_block(new_word->profiling);
  30
  31         return new_word.untagged();
  32 }
  33
  34 /* <word> ( name vocabulary -- word ) */
  35 PRIMITIVE(word)
  36 {
  37         cell vocab = dpop();
  38         cell name = dpop();
  39         dpush(tag<word>(allot_word(vocab,name)));
  40 }
  41
  42 /* word-xt ( word -- start end ) */
  43 PRIMITIVE(word_xt)
  44 {
  45         word *w = untag_check<word>(dpop());
  46         code_block *code = (profiling_p ? w->profiling : w->code);
  47         dpush(allot_cell((cell)code->xt()));
  48         dpush(allot_cell((cell)code + code->size));
  49 }
  50
  51 /* Allocates memory */
  52 void update_word_xt(cell w_)
  53 {
  54         gc_root<word> w(w_);
  55
  56         if(profiling_p)
  57         {
  58                 if(!w->profiling)
  59                         w->profiling = compile_profiling_stub(w.value());
  60
  61                 w->xt = w->profiling->xt();
  62         }
  63         else
  64                 w->xt = w->code->xt();
  65 }
  66
  67 PRIMITIVE(optimized_p)
  68 {
  69         drepl(tag_boolean(word_optimized_p(untag_check<word>(dpeek()))));
  70 }
  71
  72 PRIMITIVE(wrapper)
  73 {
  74         wrapper *new_wrapper = allot<wrapper>(sizeof(wrapper));
  75         new_wrapper->object = dpeek();
  76         drepl(tag<wrapper>(new_wrapper));
  77 }
  78
  79 }