factor/vm/words.cpp

79 lines
1.6 KiB
C++

#include "master.hpp"
namespace factor
{
word *allot_word(cell vocab_, cell name_)
{
gc_root<object> vocab(vocab_);
gc_root<object> name(name_);
gc_root<word> new_word(allot<word>(sizeof(word)));
new_word->hashcode = tag_fixnum((rand() << 16) ^ rand());
new_word->vocabulary = vocab.value();
new_word->name = name.value();
new_word->def = userenv[UNDEFINED_ENV];
new_word->props = F;
new_word->counter = tag_fixnum(0);
new_word->direct_entry_def = F;
new_word->subprimitive = F;
new_word->profiling = NULL;
new_word->code = NULL;
jit_compile_word(new_word.value(),new_word->def,true);
update_word_xt(new_word.value());
if(profiling_p)
relocate_code_block(new_word->profiling);
return new_word.untagged();
}
/* <word> ( name vocabulary -- word ) */
PRIMITIVE(word)
{
cell vocab = dpop();
cell name = dpop();
dpush(tag<word>(allot_word(vocab,name)));
}
/* word-xt ( word -- start end ) */
PRIMITIVE(word_xt)
{
word *w = untag_check<word>(dpop());
code_block *code = (profiling_p ? w->profiling : w->code);
dpush(allot_cell((cell)code->xt()));
dpush(allot_cell((cell)code + code->block.size));
}
/* Allocates memory */
void update_word_xt(cell w_)
{
gc_root<word> w(w_);
if(profiling_p)
{
if(!w->profiling)
w->profiling = compile_profiling_stub(w.value());
w->xt = w->profiling->xt();
}
else
w->xt = w->code->xt();
}
PRIMITIVE(optimized_p)
{
drepl(tag_boolean(word_optimized_p(untag_check<word>(dpeek()))));
}
PRIMITIVE(wrapper)
{
wrapper *new_wrapper = allot<wrapper>(sizeof(wrapper));
new_wrapper->object = dpeek();
drepl(tag<wrapper>(new_wrapper));
}
}