--- BasiliskII/src/disk.cpp	1999/10/03 14:16:25	1.1
+++ BasiliskII/src/disk.cpp	2000/07/14 21:29:08	1.6
@@ -1,7 +1,7 @@
 /*
  *  disk.cpp - Generic disk driver
  *
- *  Basilisk II (C) 1997-1999 Christian Bauer
+ *  Basilisk II (C) 1997-2000 Christian Bauer
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -90,6 +90,9 @@ static DriveInfo *first_drive_info;
 // Icon address (Mac address space, set by PatchROM())
 uint32 DiskIconAddr;
 
+// Flag: Control(accRun) has been called, interrupt routine is now active
+static bool acc_run_called = false;
+
 
 /*
  *  Get pointer to drive info, NULL = invalid drive number
@@ -184,6 +187,39 @@ bool DiskMountVolume(void *fh)
 
 
 /*
+ *  Mount volumes for which the to_be_mounted flag is set
+ *  (called during interrupt time)
+ */
+
+static void mount_mountable_volumes(void)
+{
+	DriveInfo *info = first_drive_info;
+	while (info != NULL) {
+
+		// Disk in drive?
+		if (!ReadMacInt8(info->status + dsDiskInPlace)) {
+
+			// No, check if disk was inserted
+			if (SysIsDiskInserted(info->fh))
+				DiskMountVolume(info->fh);
+		}
+
+		// Mount disk if flagged
+		if (info->to_be_mounted) {
+			D(bug(" mounting drive %d\n", info->num));
+			M68kRegisters r;
+			r.d[0] = info->num;
+			r.a[0] = 7;	// diskEvent
+			Execute68kTrap(0xa02f, &r);		// PostEvent()
+			info->to_be_mounted = false;
+		}
+
+		info = info->next;
+	}
+}
+
+
+/*
  *  Driver Open() routine
  */
 
@@ -193,6 +229,7 @@ int16 DiskOpen(uint32 pb, uint32 dce)
 
 	// Set up DCE
 	WriteMacInt32(dce + dCtlPosition, 0);
+	acc_run_called = false;
 
 	// Install drives
 	for (DriveInfo *info = first_drive_info; info; info = info->next) {
@@ -228,7 +265,7 @@ int16 DiskOpen(uint32 pb, uint32 dce)
 				info->num_blocks = SysGetFileSize(info->fh) / 512;
 				info->to_be_mounted = true;
 			}
-			D(bug(" %ld blocks\n", info->num_blocks));
+			D(bug(" %d blocks\n", info->num_blocks));
 			WriteMacInt16(info->status + dsDriveSize, info->num_blocks & 0xffff);
 			WriteMacInt16(info->status + dsDriveS1, info->num_blocks >> 16);
 
@@ -306,30 +343,10 @@ int16 DiskControl(uint32 pb, uint32 dce)
 		case 1:		// KillIO
 			return noErr;
 
-		case 65: {	// Periodic action ("insert" disks on startup and check for disk changes)
-			DriveInfo *info = first_drive_info;
-			while (info != NULL) {
-
-				// Disk in drive?
-				if (!ReadMacInt8(info->status + dsDiskInPlace)) {
-
-					// No, check if disk was inserted
-					if (SysIsDiskInserted(info->fh))
-						DiskMountVolume(info->fh);
-				}
-
-				// Mount disk if flagged
-				if (info->to_be_mounted) {
-					D(bug(" mounting drive %d\n", info->num));
-					M68kRegisters r;
-					r.d[0] = info->num;
-					r.a[0] = 7;	// diskEvent
-					Execute68kTrap(0xa02f, &r);		// PostEvent()
-					info->to_be_mounted = false;
-				}
-
-				info = info->next;
-			}
+		case 65: {	// Periodic action (accRun, "insert" disks on startup)
+			mount_mountable_volumes();
+			WriteMacInt16(dce + dCtlFlags, ReadMacInt16(dce + dCtlFlags) & ~0x2000);	// Disable periodic action
+			acc_run_called = true;
 			return noErr;
 		}
 	}
@@ -464,7 +481,7 @@ int16 DiskStatus(uint32 pb, uint32 dce)
 	// Drive-specific codes
 	switch (code) {
 		case 8:		// Get drive status
-			memcpy(Mac2HostAddr(pb + csParam), Mac2HostAddr(info->status), 22);
+			Mac2Mac_memcpy(pb + csParam, info->status, 22);
 			return noErr;
 
 		default:
@@ -472,3 +489,16 @@ int16 DiskStatus(uint32 pb, uint32 dce)
 			return statusErr;
 	}
 }
+
+
+/*
+ *  Driver interrupt routine (1Hz) - check for volumes to be mounted
+ */
+
+void DiskInterrupt(void)
+{
+	if (!acc_run_called)
+		return;
+
+	mount_mountable_volumes();
+}