It was definitely an issue with my failure to clear memory. By way of
confirmation, I did the following:
I cold started the M100 and used DL to get TEENY on the M100. I then
used TEENY to transfer ZBG.BA and ZBG.CO onto the M100. I also
transferred the test prog S.DO from the Assembler/Debugger Manual:
ORG 0CC00H
HOME: CALL 422DH
SCREEN: MVI A,0FFH
CALL 4B44H
ROW: LDA 0F639H
CPI 8H
JNZ SCREEN
COL: LDA 0F63AH
CPI 28H
JNZ SCREEN
WAIT: CALL 12CBH
EXIT: CALL 5797H
END HOME
Then I entered basic and typed:
RUN"ZBG"
ZBG.BA clears memory sufficiently to run ZBG and runs it...
at the # prompt, I typed:
ASM S.DO S.CO /WE
and watched it do it's magic with no errors. Then I ran the S.CO file
from the Menu and marveled at the speed with which it filled the screen
with pixels :).
Yay! It's just a bunch of calls to ROM functions, still, it's assembly
language and it works!
Wow, is it a memory hog though - after doing the assembly, I was left
with 500 bytes or so. I realized that a:
CLEAR 0,48000
and running it directly from the menu left me with about 6K, still! Now,
I have something to compare with when I run CZASM and BYTEIT...
Thanks for the assist Stephen.
xrefs:
M100ZBGASM/01.00.03 1985 and it's manual at
http://public.nachomountain.com/files/m100/
dlplus at https://github.com/bkw777/dlplus
Will
On 10/20/22 6:09 AM, Stephen Adolph wrote:
ZBUG runs uses 52472 to 62475
I think if you want to compile at, say CC00H = 52224 then you have to
have issued a clear command that makes that RAM available.
ex.
Clear 0, 48000
lets you compile at 48000 AND load/run ZBUG at 52472,
..Steve
On Thu, Oct 20, 2022 at 7:00 AM Stephen Adolph <[email protected]>
wrote:
where did you set the start of the assembly to compile to?
possible you are compiling to a protected memory space like the
lower 32k, or a space that overlaps the M100 OS, files, etc.?
On Thu, Oct 20, 2022 at 12:38 AM Will Senn <[email protected]>
wrote:
I get the impression that the TRS-80 Model 100
Assembler|Debugger, aka ZBUGASM can't really be run from RAM.
Has anyone tried it successfully?
I used TEENY and dl to get ZBUG.BA <http://ZBUG.BA> and
ZBUG.CO <http://ZBUG.CO> loaded onto my 32K RAM m100. I then
ran zbug.ba <http://zbug.ba> (which is a basic stub to clear
memory and run the assembler)... fine, it loaded up the
assembler no problem. I then typed in a small asm example into
TEXT from the book, saved it, and tried to assemble it from
ZBUG but got an out of memory OM ERROR. ZBUG.CO
<http://ZBUG.CO> is 8K on disk, after getting it on to the
disk, I'm left with about 12K. I deleted ZBUG.BA
<http://ZBUG.BA>, TEENY.CO <http://TEENY.CO> and every other
file, recleared memory and still get the OM ERROR when trying
to assemble. Seems like it ought to be enough to do an
assembly. The manual does make mention of loading it from tape
if memory's tight, but surely it would have said that it was
required to load it from tape and not provide instructions for
saving to and running from RAM if it could not be run from memory?
Thanks,
Will
