key handling, print finish in bold

2 files changed, 36 insertions, 11 deletions

diff --git a/nandgame/cpp/simpc_config.h b/nandgame/cpp/simpc_config.h
index 6e35517..8759c2e 100644
--- a/nandgame/cpp/simpc_config.h
+++ b/nandgame/cpp/simpc_config.h
@@ -1,3 +1,4 @@
 #pragma once
 
 #define TICKS_PER_INS 2
+#define NCUR_DELAY_MS 100
diff --git a/nandgame/cpp/simpc_ui.cpp b/nandgame/cpp/simpc_ui.cpp
index b7971fb..8f48554 100644
--- a/nandgame/cpp/simpc_ui.cpp
+++ b/nandgame/cpp/simpc_ui.cpp
@@ -1,4 +1,5 @@
 #include "simpc_ui.h"
+#include "simpc_config.h"
 
 #define NCUR 1
 #include "disas.h"
@@ -8,7 +9,6 @@
 
 #if NCUR
 #include <ncurses.h>
-#define NCUR_DELAY_MS 100
 
 #define PRINT_ME(y, x, ...)                                                    \
   { mvprintw(y, x, __VA_ARGS__); }
@@ -20,6 +20,8 @@
 
 #else
 
+#define attroff(...)
+#define attron(...)
 #define PRINT_ME(y, x, ...)                                                    \
   {                                                                            \
     printf("%*c", x, ' ');                                                     \
@@ -43,6 +45,8 @@
 
 bool paused = false;
 
+static void handle_key();
+
 void simpc_ui_write(const std::unique_ptr<Vcomputer> &topp, uint64_t &i,
                     StepPosition_t sp) {
   uint16_t opcode = topp->computer->PC_content_int;
@@ -116,22 +120,16 @@ void simpc_ui_write(const std::unique_ptr<Vcomputer> &topp, uint64_t &i,
   //          topp->computer->CPU->my_alu->int_op_y);
 
   PRINT_ME(getmaxy(stdscr) - 1, 1,
-           "q - Quit; p - (Un)pause; any key in pause - step");
+           "q - Quit; p - (Un)pause; s - step (while paused)");
 
   PRINT_NEXT();
 
-  int ch = getch();
-  if (ch == 'p') {
-    nodelay(stdscr, paused);
-    paused = !paused;
-  } else if (ch == 'q') {
-    simpc_ui_cleanup();
-    exit(0);
-  }
+  handle_key();
 }
 
 void simpc_ui_finish_message(const std::unique_ptr<VerilatedContext> &contextp,
                              const std::unique_ptr<Vcomputer> &topp) {
+  attron(A_BOLD);
   PRINT_ME(1, 30, "Simulation finished.");
   const char *msg;
   if (topp->halt) {
@@ -145,6 +143,7 @@ void simpc_ui_finish_message(const std::unique_ptr<VerilatedContext> &contextp,
 #if NCUR
   refresh();
 #endif
+  attroff(A_BOLD);
 }
 
 void simpc_ui_init(void) {
@@ -170,4 +169,29 @@ void simpc_ui_confirm_finish(void) {
   nodelay(stdscr, FALSE);
   getch();
 #endif
-}
\ No newline at end of file
+}
+
+static void handle_key() {
+  bool block_here = paused;
+
+  do {
+    int ch = getch();
+
+    switch (ch) {
+    case 'p':
+      // pass *current* state.
+      // pass false (currently running) - getch will block (entering step mode).
+      // pass true (currently paused) - getch will be non-blocking.
+      nodelay(stdscr, paused);
+      paused = !paused;
+      break;
+    case 'q':
+      simpc_ui_cleanup();
+      exit(0);
+      break;
+    case 's':
+      block_here = false;
+      break;
+    }
+  } while (block_here);
+}