1 files changed, 34 insertions, 6 deletions

diff --git a/ui.c b/ui.c
index d48f3e1..2691674 100644
--- a/ui.c
+++ b/ui.c
@@ -5,6 +5,7 @@
 #include <stdlib.h>
 
 #include "chip8.h"
+#include "util.h"
 
 void init_curses() {
   initscr();
@@ -14,6 +15,38 @@ void init_curses() {
   clear();
 }
 
+void draw() {
+  for (int x = 0; x < 64; x++) {
+    for (int y = 0; y < 32; y++) {
+      if (vm.screen[x][y]) {
+        mvaddstr(x * 2, y, "[]");
+      }
+    }
+  }
+
+  char buf[25];
+  for (int i = 0; i < 7; i++) {
+    sprintf(buf, "V%x: 0x%x", i, vm.Vx[i]);
+    mvaddstr(34, 9 * i, buf);
+  }
+  for (int i = 7; i < 15; i++) {
+    sprintf(buf, "V%x: 0x%x", i, vm.Vx[i]);
+    mvaddstr(35, 9 * (i - 8), buf);
+  }
+  sprintf(buf, "Vf: 0x%x", vm.Vx[15]);
+  mvaddstr(36, 0, buf);
+  sprintf(buf, "SP: 0x%x", vm.SP);
+  mvaddstr(36, 9, buf);
+  sprintf(buf, "DT: 0x%x", vm.DT);
+  mvaddstr(36, 18, buf);
+  sprintf(buf, "ST: 0x%x", vm.ST);
+  mvaddstr(36, 27, buf);
+  sprintf(buf, "PC: 0x%x", vm.PC);
+  mvaddstr(36, 36, buf);
+  sprintf(buf, "I: 0x%x", vm.I);
+  mvaddstr(36, 46, buf);
+}
+
 void curses_thread(void* v) {
   char c;
   while(1) {
@@ -22,12 +55,7 @@ void curses_thread(void* v) {
       endwin();
       exit(1);
     }
-    mvaddstr(0, 0, "V0  V1  V2  V3  V4  V5  V6  V7  V8  V9  VA  VB  VC  VD  VE  VF");
-    char buf[5];
-    for (int i = 0; i < 16; i++) {
-      sprintf(buf, "%i", vm.Vx[i]);
-      mvaddstr(1, i * 4, buf);
-    }
+    draw();
     usleep(100);
   }
 }