From 6530e1ac009ef3ecc110b0ccfc739e453ab3c673 Mon Sep 17 00:00:00 2001
From: Turo Lamminen <turol@iki.fi>
Date: Tue, 23 Apr 2024 20:23:03 +0300
Subject: [PATCH] Implement ENDOOM on DJGPP

---
 doomgeneric/i_endoom.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/doomgeneric/i_endoom.c b/doomgeneric/i_endoom.c
index 98b8c87..6de261b 100644
--- a/doomgeneric/i_endoom.c
+++ b/doomgeneric/i_endoom.c
@@ -26,6 +26,12 @@
 #include "txt_main.h"
 #endif
 
+
+#ifdef __DJGPP__
+#include <go32.h>
+#endif  // __DJGPP__
+
+
 #define ENDOOM_W 80
 #define ENDOOM_H 25
 
@@ -76,6 +82,20 @@ void I_Endoom(byte *endoom_data)
     // Shut down text mode screen
 
     TXT_Shutdown();
+
+#elif defined(__DJGPP__)
+
+    int y;
+
+    // move cursor to bottom
+    // there's a direct call for moving cursor somewhere but this is simpler to write
+    for (y = 0; y < ENDOOM_H; y++) {
+        puts("\n");
+    }
+
+    // allegro exit should have been run already and so we should be in text mode again
+    movedata(_my_ds(), (unsigned) endoom_data, _dos_ds, 0xB8000UL, ENDOOM_W * ENDOOM_H * 2);
+
 #endif
 }