game folder "just" compiles (not link)

libs/vesatst.c

@@ -0,0 +1,98 @@
+#include "types.h"
+#include <vesa.h>
+#include <dpmi.h>
+#include <stdio.h>
+#include <malloc.h>
+#include "bgraph.h"
+#include <i86.h>
+
+MODEinfo vesadata;
+word lastbank=0;
+
+word *mapvesaadr(word *a);
+#pragma aux mapvesaadr parm [edi] value [edi]
+
+void showview32b(word x,word y,word xs,word ys)
+  {
+  register longint a;
+
+  if (x>640 || y>480) return;
+  if (xs==0) xs=640;
+  if (ys==0) ys=480;
+  if (x+xs>640) xs=640-x;
+  if (y+ys>480) ys=480-y;
+  if (xs>550 && ys>400)
+     {
+     redraw32b(screen,lbuffer,NULL);
+     return;
+     }
+  a=(x<<1)+linelen*y;
+  redrawbox32b(xs,ys,(void *)((char *)screen+a),(void *)a);
+  }
+
+int initmode32b()
+  {
+  getmodeinfo(&vesadata,0x110);
+  if (!(vesadata.modeattr & MA_SUPP)) return -1;
+  setvesamode(0x110,-1);
+  lbuffer=(word *)0xa0000;
+  screen=lbuffer;
+  linelen=640*2;
+  showview=showview32b;
+  screen=(void *)malloc(screen_buffer_size);
+  return 0;
+  }
+
+
+word *mapvesaadr1(word *a)
+  {
+  word bank;
+
+  bank=(long)a>>16;
+  if (bank!=lastbank)
+     {
+     lastbank=bank;
+     bank=bank;
+          {
+           union REGS regs;
+           regs.w.ax = 0x4f05;
+           regs.w.bx = 0;
+           regs.w.dx = bank;
+           int386 (0x10,&regs,&regs); // window A
+          }
+     }
+ return (word *)(((long)a & 0xffff)+0xa0000);
+}
+
+void switchvesabank(word bank)
+#pragma aux switchvesabank parm [eax]
+  {
+           union REGS regs;
+           regs.w.ax = 0x4f05;
+           regs.w.bx = 0;
+           regs.w.dx = bank;
+           int386 (0x10,&regs,&regs); // window A
+  }
+
+
+
+void vesatst()
+  {
+  int i,j;
+  word *a;
+
+  a=screen;
+  for (i=0;i<480;i++)
+     for(j=i;j<i+640;j++)
+       *(a++)=i+j;
+  showview(10,10,400,300);
+  }
+
+void main()
+  {
+  initmode32b();
+  getchar();
+  vesatst();
+  getchar();
+  }
+