Create README.md

README.md

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+# Diablo: Hellfire
+The source code to Diablo: Hellfire, the expansion to Diablo by Synergistic Software
+
+https://archive.org/details/hellfire_source
+
+http://www.oldpcgaming.net/diablo-hellfire-review/
+
+![](https://i.imgur.com/9NdmmD6.png)
+
+
+## How to compile
+
+1. Install Visual C++ 6.0
+
+    https://archive.org/details/MicrosoftVisualC6.0StandardEdition
+
+3. Download the repository, switch to `\src` and open the workspace file `DIABLO.DSW` with VC++ 6.0
+
+    There are two projects in the workspace: `Diablo files` (hellfire.exe) and `ui files` (hellfrui.dll)
+   
+    
+
+4. From the main menu `Build > Rebuild` will create `\Windebug\hellfire.exe` and `\Windebug\hellfrui.dll`
+
+	  Run `Z.BAT` will create `\WinRel\Diablo.exe` using a makefile `DIABLO.MAK` (probably it's for a production)
+  
+
+
+## How to debug
+
+1. To be able to run the game (`\Windebug\hellfire.exe`) you have to download and place [HELLFIRE.MPQ](http://cdn.pvpgn.pro/diablo1/hellfire/HELLFIRE.MPQ) and [DIABDAT.MPQ](http://cdn.pvpgn.pro/diablo1/DIABDAT.MPQ) (from original Diablo: Retail) into `\Windebug` directory
+
+
+2. In VC++ project open `Project > Settings`, switch tab `Debug` and set option `Working directory` to full path to your `\Windebug` directory.
+
+
+3. `Build > Start Debug > Step Into` will set break point on entrypoint function `WinMain(..)` in `DIABLO.cpp`.
+
+<img src="https://i.imgur.com/PocFOvk.png" width="49%" /> <img src="https://i.imgur.com/ukf4Nmz.png" width="49%" />
+