ysyx-workbench/npc/include/vpi_wrapper.hpp

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2024-04-09 09:03:21 +00:00
#ifndef _NPC_VPI_WRAPPER_H_
#define _NPC_VPI_WRAPPER_H_
#include <components.hpp>
#include <vpi_user.h>
template <typename T, std::size_t nr>
class _RegistersVPI : public _RegistersBase<T, nr> {
std::array<vpiHandle, nr> reg_handles;
vpiHandle pc_handle;
T vpi_get(vpiHandle vh) {
s_vpi_value v;
v.format = vpiIntVal;
vpi_get_value(vh, &v);
return v.value.integer;
}
T fetch_pc(void) { return vpi_get(pc_handle); }
T fetch_reg(std::size_t id) { return vpi_get(reg_handles[id]); }
public:
_RegistersVPI<T, nr>(const std::string regs_prefix,
const std::string pcname) {
for (int i = 0; i < nr; i++) {
std::string regname = regs_prefix + std::to_string(i);
vpiHandle vh = vpi_handle_by_name((PLI_BYTE8 *)regname.c_str(), nullptr);
if (vh == nullptr) {
std::cerr << "vpiHandle " << regname.c_str() << " not found"
<< std::endl;
exit(EXIT_FAILURE);
}
reg_handles[i] = vh;
}
pc_handle = vpi_handle_by_name((PLI_BYTE8 *)pcname.c_str(), nullptr);
}
};
#endif