--- uae/src/include/custom.h	2018/04/24 16:42:34	1.1.1.4
+++ uae/src/include/custom.h	2018/04/24 16:49:08	1.1.1.8
@@ -6,16 +6,22 @@
   * (c) 1995 Bernd Schmidt
   */
 
-extern void custom_init(void);
-extern void customreset(void);
-extern int intlev(void);
-extern void dumpcustom(void);
+/* These are the masks that are ORed together in the chipset_mask option.
+ * If CSMASK_AGA is set, the ECS bits are guaranteed to be set as well.  */
+#define CSMASK_ECS_AGNUS 1
+#define CSMASK_ECS_DENISE 2
+#define CSMASK_AGA 4
+
+extern void custom_init (void);
+extern void customreset (void);
+extern int intlev (void);
+extern void dumpcustom (void);
 
-extern void do_disk(void);
+extern void do_disk (void);
 
 extern void notice_new_xcolors (void);
 extern void notice_screen_contents_lost (void);
-extern void init_row_map(void);
+extern void init_row_map (void);
 
 extern int picasso_requested_on;
 extern int picasso_on;
@@ -30,7 +36,7 @@ extern uae_u16 intena,intreq;
 extern int current_hpos (void);
 extern int vpos;
 
-static __inline__ int dmaen (unsigned int dmamask)
+STATIC_INLINE int dmaen (unsigned int dmamask)
 {
     return (dmamask & dmacon) && (dmacon & 0x200);
 }
@@ -52,19 +58,35 @@ extern uae_u16 adkcon;
 
 extern unsigned int joy0dir, joy1dir;
 extern int joy0button, joy1button;
-extern uae_u32 mousehack_helper (void);
 
 extern void INTREQ (uae_u16);
 extern uae_u16 INTREQR (void);
 
-#define maxhpos 227
-#define maxvpos 312
+/* maximums for statically allocated tables */
+
+#define MAXHPOS 227
+#define MAXVPOS 312
+
+/* PAL/NTSC values */
+
 /* The HRM says: The vertical blanking area (PAL) ranges from line 0 to line 29,
  * and no data can be displayed there. Nevertheless, we lose some overscan data
- * if this is set to 29. */
-#define minfirstline 21
-#define vblank_endline 29
-#define numscrlines (maxvpos+1-minfirstline+1)
+ * if minfirstline is set to 29. */
+
+#define MAXHPOS_PAL 227
+#define MAXHPOS_NTSC 227
+#define MAXVPOS_PAL 312
+#define MAXVPOS_NTSC 262
+#define MINFIRSTLINE_PAL 21
+#define MINFIRSTLINE_NTSC 18
+#define VBLANK_ENDLINE_PAL 29
+#define VBLANK_ENDLINE_NTSC 24
+#define VBLANK_HZ_PAL 50
+#define VBLANK_HZ_NTSC 60
+
+extern int maxhpos, maxvpos, minfirstline, vblank_endline, numscrlines, vblank_hz;
+extern unsigned long syncbase;
+#define NUMSCRLINES (maxvpos+1-minfirstline+1)
 
 #define DMA_AUD0      0x0001
 #define DMA_AUD1      0x0002
@@ -80,7 +102,7 @@ extern uae_u16 INTREQR (void);
 extern unsigned long frametime, timeframes;
 
 /* 50 words give you 800 horizontal pixels. An A500 can't do that, so it ought
- * to be enough. */
+ * to be enough.  Don't forget to update the definition in genp2c.c as well.  */
 #define MAX_WORDS_PER_LINE 50
 
 extern uae_u32 hirestab_h[256][2];