Changes
CP/M
,It was developed by [[Gary Kildall]] of [[Digital Research|Digital Research, Inc.]] as a private project from 1974 on, named '''''C'''ontrol '''P'''rogram/'''M'''onitor''. When it became commercial software in November 1977 it was renamed to '''''C'''ontrol '''P'''rogram for '''M'''icrocomputers''.
CP/M had a machine independent part is divided into 3 components:* BIOS (implemented by Digital ResearchBasic Input/Output System) : It consists of input/output routines. It manages data transfer between the CPU and a machine dependent part implemented by various peripherals.* BDOS (Basic Disk Operating System): It directs the vendor activities of the disk controller and manages the file allocation on the disk. It allocates memory space under a file name.* CCP (AmstradConsole Command Processor): It handles your input from the "A>" prompt.
* [http://gnuwin32.sourceforge.net/packages/arc.htm ARC extractor]* [http://www.seasip.info/Unix/Lar/index.html LBR extractor]* [http://www.gaby.de/cfx13.zip CFX extractor tool] == Amstrad CPC and CP/M == '''CP/M''' was shipped with the disk models of the Amstrad CPC and the [[DDI-1]] disc drive.See [[System_Disk]]. Other versions of CP/M were also available:* [[Vortex_CPM|Vortex]] also shipped their CP/M with their disc drives and their hard disk. This utilised their memory expansion and supported their disc format (which was widely used)* [[Dobbertin_CPM|Dobbertin]] shipped CP/M to be used with their hard disk.* [[Graduate Software]] provided a version of CP/M+ on ROM. Various utilities also patched CP/M to use extended disc formats and to support Amstrad peripheralswhich included:* [[DkTronics_CPM|Dk'Tronics CP/M]]* [[ROMDOS|RAMDOS/ROMDOS patched for CPM2.2 and CP/M+ to use RAMDOS/ROMDOS disc formats]]
CP/M versions relating to the Amstrad CPC
The following are requirements:
* MicroDOS formatted disc with boot sector.
The boot sequence on KC Compact is:
* |CPM from BASIC
* An ID is read from drive 0, track 0, side 0. Both C and N from the result phase of the ID command are checked. N must be 3 and not have a CPC id (4941/c9 c1 etc)* If ID is not MicroDOS then follow normal AMSDOS CP/M boot procedure(therefore allowing boot into Amstrad's CP/M on system format discs)
* If ID is MicroDOS then boot MicroDOS.
* execute &4000.
Therefore the you require a MicroDOS for KC Compact must be customized specifically for the KC Compact hardware compared to (i.e. a MicroDOS for KC85/4 or other KC computers which have will not work because the hardware is different ) because the code on the disc initialises the hardwareand configures the environment for MicroDOS specific to the computer booting it.
== Links ==
