edtasm and things

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3 total messages Started by misra@matt.ksu.k Fri, 14 Feb 1992 20:33

#3906

Author: misra@matt.ksu.k
Date: Fri, 14 Feb 1992 20:33

19 lines
953 bytes

help me out people. I have a model one with the expansion interface and things
and am running newdos80. Now, i *finally* got a little hang of EDTASM
and DEBUG and things. I have actually gotten as far as make object files
and things like that(arent you impressed?) well.. now i would want to load
the assembly program into memory and run it hopefully. So far
everytime i load the file, it tell me that it has been trying to read/write
ROM. Humm.. can any one help me out with the free memory space and things
like that? and what should the ORG be for most programs? I guess
that would come under FREE MEMORY SPACE. And once you go into
debug is there anyway to come back to EDTASM and not end up in
NEWDOS again. Going around in circles does become tireing after awhile..
Well.. any help would be helpful. I am sure many of you are wondering
why i am so much after the model I. But just bear with me..
I will tell you later. Thanks.

						-Boo

Re: edtasm and things

#3912

Author: qbarnes@urbana.m
Date: Mon, 17 Feb 1992 17:34

33 lines
1615 bytes

In <kpo9sqINNlbh@matt.ksu.ksu.edu> misra@matt.ksu.ksu.edu (Boo!) writes:

>help me out people. I have a model one with the expansion interface and things
>and am running newdos80. Now, i *finally* got a little hang of EDTASM
>and DEBUG and things. I have actually gotten as far as make object files
>and things like that(arent you impressed?) well.. now i would want to load
>the assembly program into memory and run it hopefully. So far
>everytime i load the file, it tell me that it has been trying to read/write
>ROM. Humm.. can any one help me out with the free memory space and things
>like that? and what should the ORG be for most programs? I guess
>that would come under FREE MEMORY SPACE. And once you go into
>debug is there anyway to come back to EDTASM and not end up in
>NEWDOS again. Going around in circles does become tireing after awhile..
>Well.. any help would be helpful. I am sure many of you are wondering
>why i am so much after the model I. But just bear with me..
>I will tell you later. Thanks.

You're getting the error message because the loader has figured out
some address in your binary would attempt to overwrite ROM.  For
example, you don't have an ORG statement so it defaults to 0000H
or the ORG statement you have is too low.

If you don't care about BASIC, then it becomes simplier.  My TRS-80
Assembly-Language Programming book from RS has all the ORGs at "4A00H"

If you're still having problems, send me some e-mail and I'll mail
you an example ASM file that works under NEWDOS/80 2.0.

>						-Boo
--
Quentin Barnes
qbarnes@urbana.mcd.mot.com | ..!uiucuxc!udc!qbarnes

Re: edtasm and things

#3927

Author: siebeck@infoac.r
Date: Thu, 20 Feb 1992 09:30

16 lines
449 bytes

qbarnes@urbana.mcd.mot.com (Quentin Barnes) writes:
>If you don't care about BASIC, then it becomes simplier.  My TRS-80
>Assembly-Language Programming book from RS has all the ORGs at "4A00H"

If you want to play safe, and keep NewDos80 from being overwritten,
use

	org	5200h

since memory below this address is used by DOS.

Wolfgang
--
siebeck@infoac.rmi.de (Wolfgang Siebeck)
[Hold your horses, the TRS80 Model I emulator is on it's way ...]

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