Various fixes to the IMD loader - 5.25" 2DD IMD images now work correctly in thin track drives;

A slight fix to TD0 loading;
Ported the small gameport bugfix from VARCem;
Disabled CD-ROM logging.

src/cdrom/cdrom.c

@@ -9,7 +9,7 @@
  *		Implementation of the CD-ROM drive with SCSI(-like)
  *		commands, for both ATAPI and SCSI usage.
  *
- * Version:	@(#)cdrom.c	1.0.41	2018/03/18
+ * Version:	@(#)cdrom.c	1.0.42	2018/03/19
  *
  * Author:	Miran Grca, <mgrca8@gmail.com>
  *
@@ -332,7 +332,6 @@ static const mode_sense_pages_t cdrom_mode_sense_pages_changeable =
 static mode_sense_pages_t cdrom_mode_sense_pages_saved[CDROM_NUM];
 
 
-#define ENABLE_CDROM_LOG 1
 #ifdef ENABLE_CDROM_LOG
 int cdrom_do_log = ENABLE_CDROM_LOG;
 #endif

src/floppy/fdd_imd.c

@@ -8,7 +8,7 @@
  *
  *		Implementation of the IMD floppy image format.
  *
- * Version:	@(#)fdd_imd.c	1.0.5	2018/03/17
+ * Version:	@(#)fdd_imd.c	1.0.6	2018/03/19
  *
  * Authors:	Fred N. van Kempen, <decwiz@yahoo.com>
  *		Miran Grca, <mgrca8@gmail.com>
@@ -590,6 +590,7 @@ imd_load(int drive, wchar_t *fn)
     uint32_t raw_tsize = 0;
     uint32_t minimum_gap3 = 0;
     uint32_t minimum_gap4 = 0;
+    uint8_t converted_rate;
 
     d86f_unregister(drive);
 
@@ -690,6 +691,7 @@ imd_load(int drive, wchar_t *fn)
 		dev->tracks[track][side].side_flags |= 0x20;
 	if ((dev->tracks[track][side].side_flags & 7) == 1)
 		dev->tracks[track][side].side_flags |= 0x20;
+	/* pclog("Side flags for (%02i)(%01i): %02X\n", track, side, dev->tracks[track][side].side_flags); */
 	dev->tracks[track][side].is_present = 1;
 	dev->tracks[track][side].file_offs = (buffer2 - buffer);
 	memcpy(dev->tracks[track][side].params, buffer2, 5);
@@ -748,6 +750,15 @@ imd_load(int drive, wchar_t *fn)
 	/* Not leaving even GAP1: 146 : 73 */
 	raw_tsize = get_raw_tsize(dev->tracks[track][side].side_flags, 0);
 	minimum_gap3 = 12 * track_spt;
+
+	if ((dev->tracks[track][side].side_flags == 0x0A) || (dev->tracks[track][side].side_flags == 0x29))
+		converted_rate = 2;
+	else if (dev->tracks[track][side].side_flags == 0x28)
+		converted_rate = 4;
+	else
+		converted_rate = dev->tracks[track][side].side_flags & 0x03;
+
+	if (gap3_sizes[converted_rate][sector_size][track_spt] == 0x00) {
 		if ((raw_tsize - track_total + (mfm ? 146 : 73)) < (minimum_gap3 + minimum_gap4)) {
 			/* If we can't fit the sectors with a reasonable minimum gap at perfect RPM, let's try 2% slower. */
 			raw_tsize = get_raw_tsize(dev->tracks[track][side].side_flags, 1);
@@ -765,13 +776,19 @@ imd_load(int drive, wchar_t *fn)
 		}
 
 		dev->tracks[track][side].gap3_len = (raw_tsize - track_total - minimum_gap4 + (mfm ? 146 : 73)) / track_spt;
+	} else if (gap3_sizes[converted_rate][sector_size][track_spt] != 0x00)
+		dev->tracks[track][side].gap3_len = gap3_sizes[converted_rate][sector_size][track_spt];
 
-	dev->track_count++;
+	/* pclog("GAP3 length for (%02i)(%01i): %i bytes\n", track, side, dev->tracks[track][side].gap3_len); */
+
+	if (track > dev->track_count)
+		dev->track_count = track;
 
 	if (last_offset >= fsize) break;
     }
 
     /* If more than 43 tracks, then the tracks are thin (96 tpi). */
+    dev->track_count++;
     dev->track_width = 0;
     if (dev->track_count > 43)
 	dev->track_width = 1;
@@ -780,6 +797,8 @@ imd_load(int drive, wchar_t *fn)
     if (dev->sides == 2)
 	dev->disk_flags |= 8;
 
+    /* pclog("%i tracks, %i sides\n", dev->track_count, dev->sides); */
+
     /* Attach this format to the D86F engine. */
     d86f_handler[drive].disk_flags = disk_flags;
     d86f_handler[drive].side_flags = side_flags;

src/floppy/fdd_td0.c

@@ -8,7 +8,7 @@
  *
  *		Implementation of the Teledisk floppy image format.
  *
- * Version:	@(#)fdd_td0.c	1.0.4	2018/03/17
+ * Version:	@(#)fdd_td0.c	1.0.5	2018/03/19
  *
  * Authors:	Fred N. van Kempen, <decwiz@yahoo.com>
  *		Miran Grca, <mgrca8@gmail.com>
@@ -784,6 +784,7 @@ td0_initialize(int drive)
 		track_size += (pre_sector + size + 2);
 	}
 
+	if (track > track_count)
 		track_count = track;
 
 	if (track_spt != 255) {

src/game/gameport.c

@@ -8,7 +8,7 @@
  *
  *		Implementation of a generic Game Port.
  *
- * Version:	@(#)gameport.c	1.0.3	2018/03/15
+ * Version:	@(#)gameport.c	1.0.4	2018/03/19
  *
  * Authors:	Miran Grca, <mgrca8@gmail.com>
  *		Sarah Walker, <tommowalker@tommowalker.co.uk>
@@ -193,7 +193,7 @@ gameport_write(uint16_t addr, uint8_t val, void *priv)
 static uint8_t
 gameport_read(uint16_t addr, void *priv)
 {
-    gameport_t *p = (gameport_t *)p;
+    gameport_t *p = (gameport_t *)priv;
     uint8_t ret;
 
     timer_clock();