CDROM: allow to boot from MacOS 7.6 CDROM

Reading one sector from the CDROM is always reading several (4)
from the SD card, so always set multBlock to one in this case.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>

diff --git a/software/SCSI2SD/src/disk.c b/software/SCSI2SD/src/disk.c
index edda97e58fa394ada4bac71a1e097827e6bd6328..7a599390eb95bc76790af478451eb25b34dfdc45 100755 (executable)
--- a/software/SCSI2SD/src/disk.c
+++ b/software/SCSI2SD/src/disk.c
@@ -244,7 +244,7 @@ static void doRead(uint32 lba, uint32 blocks)
                scsiDev.phase = DATA_IN;\r
                scsiDev.dataLen = 0; // No data yet\r
 \r
-               if ((blocks == 1) ||\r
+               if ((blocks * SDSectorsPerSCSISector(scsiDev.target->liveCfg.bytesPerSector) == 1) ||\r
                        unlikely(((uint64) lba) + blocks == capacity)\r
                        )\r
                {\r