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From: kwgst@unix.cis.pitt.edu (Filip Gieszczykiewicz)
Newsgroups: comp.os.cpm
Subject: CP/M & MBASIC question
Summary: how to clear screen and load binary into USR#
Message-ID: <77348@unix.cis.pitt.edu>
Date: 10 Jan 91 07:15:55 GMT
Reply-To: kwgst@unix.cis.pitt.edu (Filip Gieszczykiewicz)
Followup-To: comp.os.cpm
Organization: undecided
Lines: 50


	Greetings I have a Kaypro 10 and am starting to experiment
	with CP/M. (My first z80 machine)

	I have several questions:

	1) Is there a command in Miscrosoft BASIC (M-80) that will
	clear the screen and home the cursor? I have all docs but they
	say nothing.

	2) I have a simple CLS.COM program that is about 15 bytes long
	that clears the screen. Now, I DUMPed it and converted the
	hex to decimal and poked those values from within BASIC.
	When I CALL it, it clears the screen and does a "Warm Boot"
	[bummer]. Anyways, I got rid of the JMP 0000h (for the
	warm boot) but now in hangs. [bummer^2] Arghh... Good lord,
	even my Apple ][+ has a HOME command! ;-)

	3) How do I load a binary file so I can use it with the
	USR# function? I have an assembler (RMAC), a linker, a
	BASICLIB.REL (what is that <--- ?), and MBASIC. Is this
	all I need? Oh, yeah, I have a hard disk so space in not
	a problem.

	(I have the source for SAFETY.COM, which also clears the screen,
	but even that does not work when POKEed from BASIC. Can I use
	&HD000? I have no idea where empty space is in BASIC.)

	Anyone?

	I also don't have a text editor (WS died) so I wrote my own
	in basic.... can't use the "," with INPUT... it gives a
	"Redo from start" (or something similar).

	4) Anyone know how to read a text file using random-access?
	I tried every possible combination. I can create but I can't
	read it. (Remember, you can't read a file that contains ","s
	with the INPUT# statement)

	Maybe I should stick to assembly..... [grin]
	(Yeah, but you need an editor for that - Catch 22???)

	Take care.

	P.S. Please e-mail. I will archive everything. Before sending
	a "send everything to me", give me a few days to organize :-)
-- 
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Name: Karol Gieszczykiewicz Address: kwgst@unix.cis.pitt.edu
This message posted for: Filip Gieszczykiewicz (fmgst@unix.cis.pitt.edu)