Last Modified: July 20, 1998
Article: TA46745
Old Article: 829

Below is a table for the Cursor commands required when using CP/M 2.21 on the Apple III.
Note: All of the commands are offset by 128 decimal. This prevents CP/M BDOS from interpreting control codes (Tab for example) in the cursor command sequences.

Command					AIII Dec	AIII Hex	CP/M Dec	CP/M Hex
Turn Screen ON				15		0F		143		8F
Turn Screen OFF				14		0E		142		8E
Normal Video (White on Black)		17		11		45		91
Inverse Video (Black on White)		18		12		146		92
Lead-in, Cursor Addressing		26		A		154		9A
Horizontal (X-Axis) Offset		0		0		128		80
Vertical (Y-Axis) Offset		0		0		128		80
Clear Screen (& Home Cursor)		28		1C		156		9C
Clear to End of Screen (From Cursor)	29		1D		157		9D
Clear to End of Line (From Cursor)	31		1E		159		9E
Clear line				30		1E		158		9E
Setup - Initialize Screen to 80x24	16 03		10 03		144 03		90 03
Home Cursor (Do Not Clear)		2		0C		140		8C

Note: The Setup command; this places the console in 80x24 text format if it is not already there.

For additional information on the subject, refer to the Standard Device Drivers Manual supplied with the Apple III.