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Table of contents The zx-state file format
Block types
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ZXSTBETADISKEach disk drive connected to the Beta 128 disk interface will have one of these blocks, if a disk is inserted. They follow the ZXSTBETA128 block which identifies the number of drives. // Beta 128 disk image // Flags #define ZXSTBDF_EMBEDDED 1 #define ZXSTBDF_COMPRESSED 2 #define ZXSTBDF_WRITEPROTECT 4 // Disk image types #define ZXSTBDT_TRD 0 #define ZXSTBDT_SCL 1 #define ZXSTBDT_FDI 2 #define ZXSTBDT_UDI 3 typedef struct _tagZXSTBETADISK { ZXSTBLOCK blk; DWORD dwFlags; BYTE chDriveNum; BYTE chCylinder; BYTE chDiskType; union { CHAR szFileName[1]; BYTE chDiskImage[1]; }; } ZXSTBETADISK, *LPZXSTBETADISK; Membersblk
The block header. The block id is ZXSTBID_BETADISK ('B', 'D', 'S', 'K').
dwFlags
Various flags. This can be a combination of:
chDriveNum
Specifies the drive to insert this disk image into (0-3).
chCylinder
The cylinder the drive heads are currently over (0-86).
chDiskType
Specifies the type of disk image. This can be one of:
szFileName
The file name of the disk image which should be opened and inserted into this drive, if the disk image is not embedded.
chDiskImage
If the disk image is embedded, this member is the (possibly compressed) disk image to be inserted into this drive.
RemarksThese blocks follow the ZXSTBETA128 block which identifies the number of drives. When loading this block, you should use the chDiskType member to determine the disk image format, rather than the file extension of szFileName. Revision historyAvailable since version 1.2 |
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