Non-blocking memory writes.
This commit is contained in:
steve
parent
7f78b9bf56
commit
fdf2c1b0d0
44
t-vvm.cc
44
t-vvm.cc
|
|
@ -17,7 +17,7 @@
|
|||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
||||
*/
|
||||
#if !defined(WINNT)
|
||||
#ident "$Id: t-vvm.cc,v 1.93 2000/01/02 17:57:56 steve Exp $"
|
||||
#ident "$Id: t-vvm.cc,v 1.94 2000/01/08 03:09:14 steve Exp $"
|
||||
#endif
|
||||
|
||||
# include <iostream>
|
||||
|
|
@ -78,6 +78,7 @@ class target_vvm : public target_t {
|
|||
virtual void proc_assign(ostream&os, const NetAssign*);
|
||||
virtual void proc_assign_mem(ostream&os, const NetAssignMem*);
|
||||
virtual void proc_assign_nb(ostream&os, const NetAssignNB*);
|
||||
virtual void proc_assign_mem_nb(ostream&os, const NetAssignMemNB*);
|
||||
virtual bool proc_block(ostream&os, const NetBlock*);
|
||||
virtual void proc_case(ostream&os, const NetCase*net);
|
||||
virtual void proc_condit(ostream&os, const NetCondit*);
|
||||
|
|
@ -776,7 +777,8 @@ void target_vvm::task_def(ostream&os, const NetTaskDef*def)
|
|||
os << "class " << name << " : public vvm_thread {" << endl;
|
||||
os << " public:" << endl;
|
||||
os << " " << name << "(vvm_thread*th)" << endl;
|
||||
os << " : vvm_thread(), back_(th), step_(&" << name << "::step_0_)" << endl;
|
||||
os << " : vvm_thread(), back_(th), step_(&" << name <<
|
||||
"::step_0_), callee_(0)" << endl;
|
||||
os << " { }" << endl;
|
||||
os << " ~" << name << "() { }" << endl;
|
||||
os << " bool go() { return (this->*step_)(); }" << endl;
|
||||
|
|
@ -1360,7 +1362,7 @@ void target_vvm::start_process(ostream&os, const NetProcTop*proc)
|
|||
os << " public:" << endl;
|
||||
os << " " << thread_class_ << "()" << endl;
|
||||
os << " : vvm_thread(), step_(&" << thread_class_ <<
|
||||
"::step_0_)" << endl;
|
||||
"::step_0_), callee_(0)" << endl;
|
||||
os << " { }" << endl;
|
||||
os << " ~" << thread_class_ << "() { }" << endl;
|
||||
os << endl;
|
||||
|
|
@ -1508,6 +1510,37 @@ void target_vvm::proc_assign_nb(ostream&os, const NetAssignNB*net)
|
|||
}
|
||||
}
|
||||
|
||||
void target_vvm::proc_assign_mem_nb(ostream&os, const NetAssignMemNB*amem)
|
||||
{
|
||||
|
||||
string index = mangle(amem->index()->name()) + "_bits";
|
||||
string rval = emit_proc_rval(defn, 8, amem->rval());
|
||||
const NetMemory*mem = amem->memory();
|
||||
|
||||
defn << " /* " << amem->get_line() << " */" << endl;
|
||||
if (mem->width() == amem->rval()->expr_width()) {
|
||||
defn << " (new vvm_memory_t<" << mem->width() << ","
|
||||
<< mem->count() << ">::assign_nb(" << mangle(mem->name())
|
||||
<< ", " << index << ".as_unsigned(), " << rval <<
|
||||
")) -> schedule();" << endl;
|
||||
|
||||
} else {
|
||||
|
||||
assert(mem->width() <= amem->rval()->expr_width());
|
||||
string tmp = make_temp();
|
||||
defn << " vvm_bitset_t<" << mem->width() << ">" <<
|
||||
tmp << ";" << endl;
|
||||
for (unsigned idx = 0 ; idx < mem->width() ; idx += 1)
|
||||
defn << " " << tmp << "[" << idx << "] = " <<
|
||||
rval << "[" << idx << "];" << endl;
|
||||
|
||||
defn << " (new vvm_memory_t<" << mem->width() << ","
|
||||
<< mem->count() << ">::assign_nb(" << mangle(mem->name())
|
||||
<< ", " << index << ".as_unsigned(), " << tmp <<
|
||||
")) -> schedule();" << endl;
|
||||
}
|
||||
}
|
||||
|
||||
bool target_vvm::proc_block(ostream&os, const NetBlock*net)
|
||||
{
|
||||
if (net->type() == NetBlock::PARA) {
|
||||
|
|
@ -1786,6 +1819,7 @@ void target_vvm::proc_utask(ostream&os, const NetUTask*net)
|
|||
{
|
||||
unsigned out_step = ++thread_step_;
|
||||
const string name = mangle(net->name());
|
||||
defn << " assert(callee_ == 0);" << endl;
|
||||
defn << " callee_ = new " << name << "(this);" << endl;
|
||||
defn << " step_ = &" << thread_class_ << "::step_" <<
|
||||
out_step << "_;" << endl;
|
||||
|
|
@ -1796,6 +1830,7 @@ void target_vvm::proc_utask(ostream&os, const NetUTask*net)
|
|||
defn << "bool " << thread_class_ << "::step_" << out_step <<
|
||||
"_() {" << endl;
|
||||
defn << " delete callee_;" << endl;
|
||||
defn << " callee_ = 0;" << endl;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -1958,6 +1993,9 @@ extern const struct target tgt_vvm = {
|
|||
};
|
||||
/*
|
||||
* $Log: t-vvm.cc,v $
|
||||
* Revision 1.94 2000/01/08 03:09:14 steve
|
||||
* Non-blocking memory writes.
|
||||
*
|
||||
* Revision 1.93 2000/01/02 17:57:56 steve
|
||||
* It is possible for node to initialize several pins of a signal.
|
||||
*
|
||||
|
|
|
|||
20
vvm/vvm.h
20
vvm/vvm.h
|
|
@ -19,7 +19,7 @@
|
|||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
||||
*/
|
||||
#if !defined(WINNT)
|
||||
#ident "$Id: vvm.h,v 1.28 2000/01/06 05:56:02 steve Exp $"
|
||||
#ident "$Id: vvm.h,v 1.29 2000/01/08 03:09:14 steve Exp $"
|
||||
#endif
|
||||
|
||||
# include <cassert>
|
||||
|
|
@ -251,6 +251,20 @@ class vvm_memory_t : public __vpiMemory {
|
|||
cb_list_ = ram;
|
||||
}
|
||||
|
||||
class assign_nb : public vvm_event {
|
||||
public:
|
||||
assign_nb(vvm_memory_t<WIDTH,SIZE>&m, unsigned i,
|
||||
const vvm_bitset_t<WIDTH>&v)
|
||||
: mem_(m), index_(i), val_(v) { }
|
||||
|
||||
void event_function() { mem_.set_word(index_, val_); }
|
||||
|
||||
private:
|
||||
vvm_memory_t<WIDTH,SIZE>&mem_;
|
||||
unsigned index_;
|
||||
vvm_bitset_t<WIDTH> val_;
|
||||
};
|
||||
|
||||
private:
|
||||
vvm_ram_callback*cb_list_;
|
||||
void call_list_(unsigned idx)
|
||||
|
|
@ -259,8 +273,12 @@ class vvm_memory_t : public __vpiMemory {
|
|||
}
|
||||
};
|
||||
|
||||
|
||||
/*
|
||||
* $Log: vvm.h,v $
|
||||
* Revision 1.29 2000/01/08 03:09:14 steve
|
||||
* Non-blocking memory writes.
|
||||
*
|
||||
* Revision 1.28 2000/01/06 05:56:02 steve
|
||||
* Add memory address range check.
|
||||
*
|
||||
|
|
|
|||
Loading…
Reference in New Issue