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Add power operator synthesize(). 

This patch adds synthesize() for the power operator.
This commit is contained in:
Cary R 2008-02-22 15:48:07 -08:00 committed by Stephen Williams
parent a01bc5e245
commit 285ff2859f
1 changed files with 34 additions and 5 deletions
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39
expr_synth.cc
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@ -324,10 +324,40 @@ NetNet* NetEBComp::synthesize(Design*des)
NetNet* NetEBPow::synthesize(Design*des)
{
cerr << get_fileline() << ": internal error: Do not yet know how to handle"
<< " power operator in this context." << endl;
des->errors += 1;
return 0;
NetNet *lsig=0, *rsig=0;
unsigned width;
bool real_args=false;
if (process_binary_args(des, left_, right_, lsig, rsig,
real_args, this)) {
return 0;
}
if (real_args) width = 1;
else width = expr_width();
NetScope*scope = lsig->scope();
assert(scope);
NetPow*powr = new NetPow(scope, scope->local_symbol(), width,
lsig->vector_width(),
rsig->vector_width());
des->add_node(powr);
powr->set_signed( has_sign() );
powr->set_line(*this);
connect(powr->pin_DataA(), lsig->pin(0));
connect(powr->pin_DataB(), rsig->pin(0));
NetNet*osig = new NetNet(scope, scope->local_symbol(),
NetNet::IMPLICIT, width);
osig->set_line(*this);
osig->data_type(expr_type());
osig->local_flag(true);
connect(powr->pin_Result(), osig->pin(0));
return osig;
}
NetNet* NetEBMult::synthesize(Design*des)
@ -360,7 +390,6 @@ NetNet* NetEBMult::synthesize(Design*des)
NetNet*osig = new NetNet(scope, scope->local_symbol(),
NetNet::IMPLICIT, width);
osig->data_type(lsig->data_type());
osig->set_line(*this);
osig->data_type(expr_type());
osig->local_flag(true);