--- hatari/src/uae-cpu/hatari-glue.c	2019/04/01 07:09:47	1.1.1.3
+++ hatari/src/uae-cpu/hatari-glue.c	2019/04/01 07:10:05	1.1.1.4
@@ -23,45 +23,45 @@
 
 
 int illegal_mem = FALSE;
-int address_space_24 = 1;
+int address_space_24 = TRUE;
 int cpu_level = 0;              /* 68000 (default) */
-int cpu_compatible = 0;
+int cpu_compatible = FALSE;
 
-long STmem_size = 0x100000;  /* 1MB */
+long STmem_size = 0x400000;     /* 4MB */
 long TTmem_size = 0;
 
 
 /* Reset custom chips */
 void customreset(void)
 {
- /* Taken from Reset_ST in reset.c: */
- Int_Reset();                           /* Reset interrupts */
- MFP_Reset();                           /* Setup MFP chip */
- Video_Reset();                         /* Reset video */
- PSG_Reset();                           /* Reset PSG */
- Sound_Reset();                         /* Reset Sound */
- IKBD_Reset(FALSE);                     /* Keyboard */
- Screen_Reset();                        /* Reset screen */
-
- /* And VBL interrupt, MUST always be one interrupt ready to trigger */
- Int_AddAbsoluteInterrupt(CYCLES_ENDLINE,INTERRUPT_VIDEO_ENDLINE);
- Int_AddAbsoluteInterrupt(CYCLES_HBL,INTERRUPT_VIDEO_HBL);
- Int_AddAbsoluteInterrupt(CYCLES_PER_FRAME,INTERRUPT_VIDEO_VBL);
+#if 0    /* Disabled since WinSTon ignores the RESET instruction, too */
+  /* Taken from Reset_ST in reset.c: */
+  Int_Reset();                           /* Reset interrupts */
+  MFP_Reset();                           /* Setup MFP chip */
+  Video_Reset();                         /* Reset video */
+  PSG_Reset();                           /* Reset PSG */
+  Sound_Reset();                         /* Reset Sound */
+  IKBD_Reset(FALSE);                     /* Keyboard */
+  Screen_Reset();                        /* Reset screen */
+
+  /* And VBL interrupt, MUST always be one interrupt ready to trigger */
+  Int_AddAbsoluteInterrupt(CYCLES_ENDLINE,INTERRUPT_VIDEO_ENDLINE);
+  Int_AddAbsoluteInterrupt(CYCLES_HBL,INTERRUPT_VIDEO_HBL);
+  Int_AddAbsoluteInterrupt(CYCLES_PER_FRAME,INTERRUPT_VIDEO_VBL);
+#endif
 }
 
 
-/* Initialize 680x0 emulation, CheckROM() must have been called first */
+/* Initialize 680x0 emulation */
 int Init680x0(void)
 {
- memory_init();
-fprintf(stderr, "TOS version: %x.%x\n", STMemory_ReadByte(2), STMemory_ReadByte(3));
-fprintf(stderr, "PC start: $%lx\n", STMemory_ReadLong(4));
+  memory_init();
 
- init_m68k();
+  init_m68k();
 #ifdef USE_COMPILER
- compiler_init();
+  compiler_init();
 #endif
- return TRUE;
+  return TRUE;
 }
 
 
@@ -74,24 +74,41 @@ void Exit680x0(void)
 /* Reset and start 680x0 emulation */
 void Start680x0(void)
 {
- m68k_reset();
- m68k_go(TRUE);
+  m68k_reset();
+  m68k_go(TRUE);
 }
 
 
+/* Check if the CPU type has been changed */
+void check_prefs_changed_cpu(int new_level, int new_compatible)
+{
+  if(cpu_level!=new_level || cpu_compatible!=new_compatible)
+  {
+    cpu_level = new_level;
+    cpu_compatible = new_compatible;
+    build_cpufunctbl ();
+  }
+}
+
+
+
 /* ----------------------------------------------------------------------- */
 /*
-  We use an illegal opcode to set ConnectedDrives, as TOS clears this
-  value we cannot set it on init.
+  We use an illegal opcode to set ConnectedDrives, as TOS (or an HD driver)
+  alters this value we cannot set it on init.
+  This opcode replaces the RTS at the end of the DMA bus boot routine
 */
 unsigned long OpCode_ConnectedDrive(uae_u32 opcode)
 {
- /*fprintf(stderr, "OpCode_ConnectedDrive handled\n");*/
- /* Set connected drives */
- STMemory_WriteWord(0x4c2, ConnectedDriveMask); 
- m68k_incpc(2);
- fill_prefetch_0();
- return 4;
+  fprintf(stderr, "OpCode_ConnectedDrive handled (%x)\n",ConnectedDriveMask );
+  /* Set connected drives */
+  STMemory_WriteLong(0x4c2, ConnectedDriveMask); 
+  /* do an RTS (the opcode we replaced) */
+  m68k_setpc(longget(m68k_areg(regs, 7)));
+  m68k_areg(regs, 7) += 4;
+
+  fill_prefetch_0();
+  return 4;
 }
 
 /* ----------------------------------------------------------------------- */