From 7b06a9a40f2f951ace9f66740ab78fcb2dcff081 Mon Sep 17 00:00:00 2001
From: uvok
Date: Thu, 8 Jan 2026 19:41:49 +0100
Subject: nandgame: ncurses interface

---
 nandgame/Vcomputer__main.cpp | 62 ++++++++++++++++++++++++++++++++++++++------
 1 file changed, 54 insertions(+), 8 deletions(-)

(limited to 'nandgame')

diff --git a/nandgame/Vcomputer__main.cpp b/nandgame/Vcomputer__main.cpp
index 79137c6..5c3cd1e 100644
--- a/nandgame/Vcomputer__main.cpp
+++ b/nandgame/Vcomputer__main.cpp
@@ -11,11 +11,18 @@
 #include <cstdio>
 #include <sched.h>
 
+#define NCUR 1
 #include "../assembler/disas.h"
 
+#if NCUR
+#include <ncurses.h>
+#define NCUR_DELAY_MS 300
+#endif
+
 //======================
 
 int main(int argc, char** argv, char**) {
+
     // Setup context, defaults, and parse command line
     Verilated::debug(0);
     const std::unique_ptr<VerilatedContext> contextp{new VerilatedContext};
@@ -53,13 +60,26 @@ int main(int argc, char** argv, char**) {
         exit(-1);
     }
 
+#if NCUR
+    initscr();
+#endif
+
+    int ncur_offset = 3;
     while (VL_LIKELY(!contextp->gotFinish()) && i < 100) {
         //topp->computer->clk_in = ~topp->computer->clk_in;
         topp->clk_in = !topp->clk_in;
         //uint16_t opcode = (topp->computer->PC_content_int & 0xff) << 8 | (topp->computer->PC_content_int >> 8);
         uint16_t opcode = topp->computer->PC_content_int;
+#if NCUR
+        mvprintw(1, 1, "Step: %10d", i);
+#endif
+
+#if NCUR
+        mvprintw(1 + ncur_offset, 1,
+#else
         printf(
-            "CLK1: %4d, CLK2: %4d, PC: @0x%04X, INS: 0x%04X\n",
+#endif
+            "CLK1: %4d\tCLK2: %4d\tPC: @0x%04X\tINS: 0x%04X\n",
             topp->clk_in,
             topp->computer->clk_in,
             topp->computer->PC_addr_int,
@@ -86,20 +106,32 @@ int main(int argc, char** argv, char**) {
 #else
         {
             auto insline = print_decoded(opcode, true);
-            printf("        %s\n", insline.c_str());
+#if NCUR
+            mvprintw(3 + ncur_offset, 5, "%s",
+#else
+            printf("        %s\n",
+#endif
+                insline.c_str());
         }
 #endif
 
-
-        printf(
-            "  A: 0x%04X, D: 0x%04X, M: 0x%04X, RES: 0x%04X\n",
+#if NCUR
+        mvprintw(5 + ncur_offset, 5,
+#else
+        printf("  "
+#endif
+            "A: 0x%04X\tD: 0x%04X\tM: 0x%04X\tRES: 0x%04X\n",
             topp->computer->reg_A_int,
             topp->computer->reg_D_int,
             topp->computer->reg_pA_int,
             topp->computer->result_int
         );
-        printf(
-            "  A: %5" PRId16 ", D: %5" PRId16 ", M: %5" PRId16 ", RES: %5" PRId16 "\n",
+#if NCUR
+        mvprintw(6 + ncur_offset, 5,
+#else
+        printf("  "
+#endif
+            "A: %6" PRId16 "\tD: %6" PRId16 "\tM: %6" PRId16 "\tRES: %6" PRId16 "\n",
             topp->computer->reg_A_int,
             topp->computer->reg_D_int,
             topp->computer->reg_pA_int,
@@ -110,9 +142,19 @@ int main(int argc, char** argv, char**) {
         // Advance time
         contextp->timeInc(1);
         i++;
+#if NCUR
+        refresh(); napms(NCUR_DELAY_MS);
+#else
         puts("-----");
+#endif
     }
-    puts("Simulation finished");
+
+#if NCUR
+    mvprintw(10 + ncur_offset, 10,
+#else
+    puts(
+#endif
+        "Simulation finished");
 
     if (VL_LIKELY(!contextp->gotFinish())) {
         VL_DEBUG_IF(VL_PRINTF("+ Exiting without $finish; no events left\n"););
@@ -124,5 +166,9 @@ int main(int argc, char** argv, char**) {
     // Print statistical summary report
     //contextp->statsPrintSummary();
 
+#if NCUR
+    getch(); endwin();
+#endif
+
     return 0;
 }
-- 
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