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netlist: Add THRESH parameter to AFUNC

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This commit is contained in:
Aaron Giles 2020-08-11 11:58:40 -07:00 committed by couriersud
parent 68b7535dd1
commit 204818a509
1 changed files with 10 additions and 1 deletions
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11
src/lib/netlist/devices/nlid_system.h
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@ -386,8 +386,10 @@ namespace devices
NETLIB_CONSTRUCTOR(function) NETLIB_CONSTRUCTOR(function)
, m_N(*this, "N", 1) , m_N(*this, "N", 1)
, m_func(*this, "FUNC", "A0") , m_func(*this, "FUNC", "A0")
, m_thresh(*this, "THRESH", nlconst::zero())
, m_Q(*this, "Q") , m_Q(*this, "Q")
, m_compiled(*this, "m_compiled") , m_compiled(*this, "m_compiled")
, m_last(*this, "m_last")
{ {
std::vector<pstring> inps; std::vector<pstring> inps;
for (int i=0; i < m_N(); i++) for (int i=0; i < m_N(); i++)
@ -412,18 +414,25 @@ namespace devices
{ {
m_vals[i] = (*m_I[i])(); m_vals[i] = (*m_I[i])();
} }
m_Q.push(m_compiled->evaluate(m_vals)); auto result = m_compiled->evaluate(m_vals);
if (plib::abs(m_last - result) >= m_thresh)
{
m_Q.push(result);
m_last = result;
}
} }
private: private:
using pf_type = plib::pfunction<nl_fptype>; using pf_type = plib::pfunction<nl_fptype>;
param_int_t m_N; param_int_t m_N;
param_str_t m_func; param_str_t m_func;
param_fp_t m_thresh;
analog_output_t m_Q; analog_output_t m_Q;
std::vector<device_arena::unique_ptr<analog_input_t>> m_I; std::vector<device_arena::unique_ptr<analog_input_t>> m_I;
pf_type::values_container m_vals; pf_type::values_container m_vals;
state_var<pf_type> m_compiled; state_var<pf_type> m_compiled;
state_var<nl_fptype> m_last;
}; };