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*/

==== Table of Contents ====

[[#procedure_for_installing_software_on_a_new_k80_cf_disk|Procedure for installing software on a new K80 CF disk]]

[[#introduction|Introduction]]

[[#format_the_new_cf_disk|Format the new CF disk]]

[[#installing_cp_m_22_bdos_ccp_bios|Installing CP/M 2.2 BDOS/CCP/BIOS]]

[[#installing_xmodem_on_cf_disk|Installing XMODEM on CF disk]]

[[#loading_software_on_cf_disk|Loading software on CF disk]]

[[#video_of_creating_a_new_cf_disk|Video of creating a new CF disk]]

====== Procedure for installing software on a new K80 CF disk ======

===== Introduction =====

This is step-by-step procedure for installing software on a new CF disk for K80. The CF disk must be have a capacity of 32Meg or larger.

===== Format the new CF disk =====

A new CF disk must be format to CP/M file system. //**Caution**: the formatting process will erase all files on the CF disk//. The formatting is done with the “xX” command of the K80 Monitor as follow: Power on the board or press reset to run the K80 monitor. At the '>' prompt, type:

//xA// to format drive A

//xB// to format drive B

//xC// to format drive C

//xD// to format dirve D

Please note the drive letter (A/B/C/D) must be in upper case.

===== Installing CP/M 2.2 BDOS/CCP/BIOS =====

CP/M 2.2 BDOS/CCP/BIOS is installed in track 0 of the CF disk. At the K80 monitor prompt, load the Intel hex file 'cpm22all.hex'; after the file load is completed, type 'c2' to copy CP/M2.2 to track 0 of the CF disk. The command 'b2' will boot CP/M 2.2, but there are no files on the CF disk right now.

===== Installing XMODEM on CF disk =====

XMODEM.COM will be the very first file on the new CF disk. At the K80 monitor prompt, load the Intel hex file 'xmodem.hex'; after the file load is completed, type 'b2' to boot up CP/M 2.2 and then type 'save 17 xmodem.com' at CP/M prompt. This will save the xmodem.hex that's in the memory as a executable CP/M file in CF disk.

===== Loading software on CF disk =====

Once xmodem is installed, it is used to load all subsequent files into the CF disk. At the CP/M 2.2 prompt, type:

//xmodem unarj.com /r/z1//

This will first load a decompressing software, unarj.com, to the new CF disk. Then type at the CP/M 2.2 prompt:

//xmodem cpm2.arj /r/z1//

This will load the compressed CP/M 2.2 distribution files. After cpm2.arj is loaded, type at the CP/M 2.2 prompt:

//unarj e cpm2//

This will decompress the CP/M 2.2 distribution files. The CF disk is now ready for use.

==== Video of creating a new CF disk ====

[[https://retrobrewcomputers.org/lib/exe/fetch.php?cache=&media=builderpages:plasmo:k80:pic_assembly_guide:create_new_cf_disk_in_k80.mp4|Creating new CF disk for K80]]