--- uae/include/custom.h	2018/04/24 16:37:54	1.1.1.1
+++ uae/include/custom.h	2018/04/24 16:38:33	1.1.1.2
@@ -9,14 +9,14 @@
 extern void custom_init(void);
 extern void customreset(void);
 extern int intlev(void);
-extern bool dmaen(UWORD dmamask);
+extern int dmaen(UWORD dmamask);
 extern void dumpcustom(void);
 
 extern void do_disk(void);
 extern void do_blitter(void);
 
-extern bool inhibit_frame;
-extern bool bogusframe;
+extern int inhibit_frame;
+extern int bogusframe;
 
 extern unsigned long specialflags;
 
@@ -29,5 +29,34 @@ extern unsigned long specialflags;
 #define SPCFLAG_TRACE 64
 #define SPCFLAG_DOTRACE 128
 #define SPCFLAG_DOINT 256
+#define SPCFLAG_BLTNASTY 512
 
 extern int dskdmaen;
+extern UWORD adkcon;
+
+extern int max_diwstop, prev_max_diwstop;
+
+extern UWORD joy0dir;
+extern int joy0button;
+
+extern void pfield_sprite_l (int, int, UWORD, UWORD);
+extern void pfield_sprite_h (int, int, UWORD, UWORD);
+
+struct bltinfo {
+    int blitzero;
+    UWORD blitpreva,blitprevb,blitashift,blitbshift;
+    UWORD bltadat,bltbdat,bltcdat,bltddat,bltafwm,bltalwm;
+    UWORD vblitsize,hblitsize;
+    WORD  bltamod,bltbmod,bltcmod,bltdmod;
+};
+
+typedef void blitter_func(UWORD *, UWORD *, UWORD *, UWORD *, struct bltinfo *);
+
+extern blitter_func *blitfunc_dofast[256];
+extern blitter_func *blitfunc_dofast_desc[256];
+
+#define maxhpos 227
+#define maxvpos 312
+#define minfirstline 29
+#define numscrlines (maxvpos+1-minfirstline+1)
+