diff options
| author | uvok | 2026-01-19 20:16:34 +0100 |
|---|---|---|
| committer | uvok | 2026-01-19 20:16:34 +0100 |
| commit | da54b3b6d3db776eb57ca502822558577e6c4c4e (patch) | |
| tree | f0b9263d3a9b2ee8e74e6c3451fc77c2ab87095a /eater_cpu/cpp | |
| parent | 1f0fc1edcea04e5c1f04803f0bdda337c2245f09 (diff) | |
Add halt state and flag
Diffstat (limited to 'eater_cpu/cpp')
| -rw-r--r-- | eater_cpu/cpp/Veater_computer__main.cpp | 7 | ||||
| -rw-r--r-- | eater_cpu/cpp/simpc_term.cpp | 4 |
2 files changed, 7 insertions, 4 deletions
diff --git a/eater_cpu/cpp/Veater_computer__main.cpp b/eater_cpu/cpp/Veater_computer__main.cpp index 315d52a..7afa4d0 100644 --- a/eater_cpu/cpp/Veater_computer__main.cpp +++ b/eater_cpu/cpp/Veater_computer__main.cpp @@ -20,6 +20,8 @@ void load_program(const std::unique_ptr<Veater_computer> &topp) { topp->eater_computer->RAM->r_datastore[1] = 0x1f; // OUT topp->eater_computer->RAM->r_datastore[2] = 0xe0; + // HALT + topp->eater_computer->RAM->r_datastore[3] = 0xf0; // Data @ 14 topp->eater_computer->RAM->r_datastore[14] = 14; // Data @ 15 @@ -53,7 +55,8 @@ int main(int argc, char **argv, char **) { // Simulate until $finish while (VL_LIKELY(!contextp->gotFinish()) && - VL_LIKELY(contextp->time() < 100)) { + VL_LIKELY(contextp->time() < 100) && + VL_LIKELY(!(topp->eater_computer->flags.__PVT__halt))) { // Evaluate model topp->eval(); @@ -65,7 +68,7 @@ int main(int argc, char **argv, char **) { topp->clk_in = !topp->clk_in; - if (topp->eater_computer->PC_out == 4 && + if (topp->eater_computer->PC_out == 6 && topp->eater_computer->decoder__DOT__internal_state == 0x01) break; } diff --git a/eater_cpu/cpp/simpc_term.cpp b/eater_cpu/cpp/simpc_term.cpp index 540cc98..a2144b2 100644 --- a/eater_cpu/cpp/simpc_term.cpp +++ b/eater_cpu/cpp/simpc_term.cpp @@ -42,7 +42,7 @@ void simpc_ui_write(const std::unique_ptr<Veater_computer> &topp, uint64_t i) { // uint16_t opcode = topp->eater_computer->; uint8_t opcode = topp->eater_computer->INS->r_datastore; // topp->halt - uint8_t halt = 0; + uint8_t halt = topp->eater_computer->flags.__PVT__halt; PRINT_ME_W(status_top, 0, 0, "Step: %10lu", i); PRINT_ME_W(status_top, 1, 0, "%-20s", paused ? "Paused" : "Running"); @@ -100,7 +100,7 @@ void simpc_ui_finish_message(const std::unique_ptr<VerilatedContext> &contextp, PRINT_ME_W(status_top, 0, xpos, "Simulation finished."); const char *msg; // topp->halt - bool halt = false; + bool halt = topp->eater_computer->flags.__PVT__halt; if (halt) { msg = "Halt encountered."; } else if (!contextp->gotFinish()) { |