eater: Add verilator/cmake project

1 files changed, 96 insertions, 0 deletions

diff --git a/eater_cpu/cpp/simpc_term.cpp b/eater_cpu/cpp/simpc_term.cpp
new file mode 100644
index 0000000..601a8cd
--- /dev/null
+++ b/eater_cpu/cpp/simpc_term.cpp
@@ -0,0 +1,96 @@
+#include "Veater_computer_eater_register.h"
+#include "simpc_ui.h"
+
+#include "disas.h"
+
+#define NCUR_X 5
+#define attroff(...)
+#define attron(...)
+#define PRINT_ME(y, x, ...)                                                    \
+  {                                                                            \
+    printf("%*c", x, ' ');                                                     \
+    printf(__VA_ARGS__);                                                       \
+    printf("\n");                                                              \
+  }
+#define PRINT_ME_W(w, y, x, ...)                                               \
+  {                                                                            \
+    printf("%*c", x, ' ');                                                     \
+    printf(__VA_ARGS__);                                                       \
+    printf("\n");                                                              \
+  }
+#define PRINT_NEXT()                                                           \
+  { puts("-----"); }
+
+#include "Veater_computer.h"
+#include "Veater_computer_eater_computer.h"
+#include "Veater_computer_eater_alu.h"
+#include "verilated.h"
+#include <cstdint>
+#include <cstdio>
+#include <sched.h>
+
+bool paused = false;
+
+static void handle_key();
+
+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;
+
+  PRINT_ME_W(status_top, 0, 0, "Step: %10lu", i);
+  PRINT_ME_W(status_top, 1, 0, "%-20s", paused ? "Paused" : "Running");
+
+  PRINT_ME(3, NCUR_X, "CLK1: %4d\tState: 0x%02X\tHLT: %d",
+           topp->clk_in,
+           topp->eater_computer->__PVT__decoder__DOT__internal_state,
+           halt);
+
+  PRINT_ME(4, NCUR_X, "BUS: %02X\tPC: @0x%02X\tINS: 0x%02X",
+           topp->eater_computer->bus,
+           topp->eater_computer->PC_out,
+           opcode
+  );
+
+  std::string insline{"???"}; //print_decoded(opcode, true);
+  PRINT_ME(5, NCUR_X, "%-80s", insline.c_str());
+
+  PRINT_ME(7, NCUR_X, "A: 0x%02X\tB: 0x%02X\tALU: 0x%02X\tOUT: 0x%02X",
+           topp->eater_computer->A->r_datastore, topp->eater_computer->B->r_datastore,
+           topp->eater_computer->alu->result, topp->eater_computer->OUT->r_datastore);
+  // PRINT_ME(
+  //     8, NCUR_X, "%c%8d\t%c%8d\t%c%8d\t%11d",
+  //     topp->computer->store_to_A_int ? '*' : ' ', topp->computer->reg_A_int,
+  //     topp->computer->store_to_D_int ? '*' : ' ', topp->computer->reg_D_int,
+  //     topp->computer->store_to_pA_int ? '*' : ' ', topp->computer->reg_pA_int,
+  //     topp->computer->result_int);
+
+  PRINT_NEXT();
+}
+
+void simpc_ui_finish_message(const std::unique_ptr<VerilatedContext> &contextp,
+                             const std::unique_ptr<Veater_computer> &topp) {
+  attron(A_BOLD);
+  auto xpos = 20;
+  PRINT_ME_W(status_top, 0, xpos, "Simulation finished.");
+  const char *msg;
+  // topp->halt
+  bool halt = false;
+  if (halt) {
+    msg = "Halt encountered.";
+  } else if (!contextp->gotFinish()) {
+    msg = "Step count exceeded.";
+  } else {
+    msg = "Regular finish.";
+  }
+  PRINT_ME_W(status_top, 1, xpos, "%s", msg);
+
+  attroff(A_BOLD);
+}
+
+void simpc_ui_init(void) {}
+
+void simpc_ui_cleanup(void) {}
+
+void simpc_ui_confirm_finish(void) {}