69 lines
1.5 KiB
C++
69 lines
1.5 KiB
C++
// See LICENSE.SiFive for license details.
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#include <fesvr/dtm.h>
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#include <vpi_user.h>
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#include <svdpi.h>
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dtm_t* dtm;
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namespace {
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// Remove args that will confuse dtm, such as those that require two tokens, like VCS code coverage "-cm line+cond"
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std::vector<std::string> filter_argv_for_dtm(int argc, char** argv)
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{
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std::vector<std::string> out;
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for (int i = 1; i < argc; ++i) { // start with 1 to skip my executable name
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if (!strncmp(argv[i], "-cm", 3)) {
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++i; // skip this one and the next one
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}
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else {
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out.push_back(argv[i]);
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}
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}
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return out;
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}
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}
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extern "C" int debug_tick
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(
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unsigned char* debug_req_valid,
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unsigned char debug_req_ready,
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int* debug_req_bits_addr,
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int* debug_req_bits_op,
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long long* debug_req_bits_data,
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unsigned char debug_resp_valid,
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unsigned char* debug_resp_ready,
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int debug_resp_bits_resp,
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long long debug_resp_bits_data
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)
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{
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if (!dtm) {
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s_vpi_vlog_info info;
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if (!vpi_get_vlog_info(&info))
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abort();
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dtm = new dtm_t(filter_argv_for_dtm(info.argc, info.argv));
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}
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dtm_t::resp resp_bits;
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resp_bits.resp = debug_resp_bits_resp;
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resp_bits.data = debug_resp_bits_data;
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dtm->tick
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(
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debug_req_ready,
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debug_resp_valid,
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resp_bits
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);
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*debug_resp_ready = dtm->resp_ready();
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*debug_req_valid = dtm->req_valid();
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*debug_req_bits_addr = dtm->req_bits().addr;
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*debug_req_bits_op = dtm->req_bits().op;
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*debug_req_bits_data = dtm->req_bits().data;
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return dtm->done() ? (dtm->exit_code() << 1 | 1) : 0;
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}
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