Changes

'''by Dimitris Kefalas <d_kef@yahoo.gr> - 2022'''<br />

==Introduction==

HDCPM is an Amstrad CPC application that enables your computer to boot and run CP/M Plus from a mass storage device. A maximum of four 8MB partitions or virtual disks can be used to make the vast amount of 32MB of data available to CP/M Plus.<br />

HDCPM is not FAT aware. It utilizes code to search in the root directory of a FAT formatted medium in order to find the CP/M image files. Then it finds the LBA of the first sector of each file and passes it to the CP/M hard disk driver. The CP/M hard disk driver doesn't know anything about FAT or image files. It accesses the image file as if it was a real hard disk. It works on the sector level with LBA addressing so it expects the 'hard disk' to be a continuous block of sectors.<br />

A CP/M image file can easily become fragmented during its creation, especially if the hard disk is nearly full. I advice you to create/copy your CP/M image files to your FAT formatted hard disk/partition while it is still empty. HDCPM will never fragment a CP/M image file.<br />

==CP/M Plus disk/partitions==

You can also create one or more partitions in order to format them to CP/M file system and use them exclusively for CP/M. In such case you must make sure that the size of the partition is big enough to accommodate your file system.<br />

Use the command |HDDEF to find the exact length of the file system/partition. When you have created the partition use the HDMGR.COM utility in order to format it.<br />

This configuration is only to be used with [[SYMBiFACE II]] or [[uIDE 16]]. USB flash disks and SD cards should not be partitioned as they will not be detected by their interface ROM.<br />

==Installation==

Using the ROM:<br />