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ivl: Bit selection using variables in strings.

This commit is contained in:
Maciej Suminski 2014-11-03 16:56:12 +01:00
parent 43c6a0bacd
commit 89d1125979
1 changed files with 12 additions and 0 deletions
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12
elab_expr.cc
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@ -5004,6 +5004,18 @@ NetExpr* PEIdent::elaborate_expr_net_bit_(Design*des, NetScope*scope,
return res; return res;
} }
if (net->sig()->data_type() == IVL_VT_STRING) {
// Special case: This is a select of a string.
// This should be interpreted as a byte select.
if (debug_elaborate) {
cerr << get_fileline() << ": debug: "
<< "Bit select of a string becomes NetESelect." << endl;
}
NetESelect*res = new NetESelect(net, mux, 8);
res->set_line(*net);
return res;
}
// Non-constant bit select? punt and make a subsignal // Non-constant bit select? punt and make a subsignal
// device to mux the bit in the net. This is a fairly // device to mux the bit in the net. This is a fairly
// complicated task because we need to generate // complicated task because we need to generate