Ram disk is not large enough for Xcopy.adf

[AmigaEd]

Hello,
I'm still struggling with this.

I've aquired the xcopy.adf. I compressed the file and have transfered the xcopy.lzh over to the A1000 from my PC using Wartrans.

I try to decompress the xcopy.lzh to the ram disk and it seems to run out of memory. I have a 2meg Microbotics Starboard attached, so I am surprised to find that the ram disk tops out at +512K.

So my question is, what is the best way to get the adf's extracted on to a1000 so that I can use adfblitzer or something similar to put these images back on to a floppy?

Thank you,
AmigaEd
 
 

[SHADES]

Why can't you just transfer the adf file non compressed?
surely a terminal program could do that via the serial port.
thenu could just save it to RAM and do what you like. wouldn't be over 900K for a Low density disk. If it's a high density image, you may have problems. My AMIGA has a highdensity drive that stores 1.96Mb per floppy.

[Varthall]

Try zipping the adf, instead of compressing it with lha/lzh. Adfblitzer should (or an equivalent program) support zipped adfs (the so-called adz files).

Varthall

[delshay]

@SHADES


your drive does 1.96MB per disk..what type of drive is this & does it need any software?

[AmigaEd]

by SHADES on 2005/2/3 0:40:18

Why can't you just transfer the adf file non compressed?
surely a terminal program could do that via the serial port.

The A1000 running the Wartrans AmigaBasic program will apparently only do 9600 baud reliably. I compressed the file because the uncompressed version would take hours to transfer.

thenu could just save it to RAM and do what you like. wouldn't be over 900K for a Low density disk.

As I stated above the the RAM: disk device appears to run out of memory at or just above 512K.

If it's a high density image, you may have problems. My AMIGA has a highdensity drive that stores 1.96Mb per floppy.

The xcopy adf image is a standard image of 880k.

There just has to be a way to make this work... It sure seems simple... extract an 880k adf image from an archive and then put it on a floppy disk using ADF2DISK or ADFBlitzer.

-AmigaEd

[AmigaEd]

by Varthall on 2005/2/3 3:42:20

Try zipping the adf, instead of compressing it with lha/lzh. Adfblitzer should (or an equivalent program) support zipped adfs (the so-called adz files).

I started looking into your idea...

I have since discovered that I can't get adfblitzer to run on the A1000. It crashes the whole system and I mean in an ugly way. Even kills the video output.

Anyway, I'll checkout ADF2Disk later tonight and see if that will work with adz files.

Or perhaps, someone reading this thread has this knowledge anf can guide me in what i need to do.

-AmigaEd

[TheMagicM]

instead of extracting the whole thing..why dont you use unadf.. it extracts files out of the adf..so if you run out of memory..maybe you can at least get the executable out of it?

btw, .adz files are .ADF files in gzip format...

if you want..email me the .ADZ file..I'll decompress it and send you back the exe or exe + whatever folder it needs.


When you're saying you're tryin to extract it.. do you have the compressed image in ram already, then trying to extract it also? cause 880k + 880k = 1.7 megs or so...(+- a few K since its compressed.)

-alex

[adolescent]

@AmigaEd

I'd suggest Amiga Explorer from Cloanto (also comes with the Amiga Forever pack).  It works on older Amigas (IIRC, Workbench 1.2+) and allows you to write ADF files directly from your PC to the Amiga's floppy.

[Atheist]

Hi AmigaEd,

Try and make a text file that is 950K in your ram: disk.

Use the "join" command in the shell to make a big ascii file.

Or use Memacs, and copy block, until it exceeds 900K, and then save it to ram:.

Be careful to not go much above 900K though, as a copy of the file is in regular ram, as well as OS overhead and the program itself, using up ram.

This is to test if there is a glitch in your ram handling by the OS.

Maybe it's not configured properly, not a contigous address space, from motherboard ram to the ram card? But what do I know, never had an A1000. Which version of AOS are you using?

When you say 2 Megs., is it 2 Megs + 256K? Do you have 256 K or 512 K of chip ram?

[Atheist]

AmigaEd wrote:

The A1000 running the Wartrans AmigaBasic program will apparently only do 9600 baud reliably. I compressed the file because the uncompressed version would take hours to transfer.

Hi AmigaEd,

I've had the higher than 9600 baud, data loss, problem before, on my A2000 @ 7.12 MHz.

I was able to get data at 19,200, only when transferring a file, but NOT displaying the text on the screen, as I was receiving it (through a modem, on a phone line). Oh wait, it was at 14,400. I never had a 19,200 baud modem, but I think it would work. What I was doing was getting all the text messages from usenet, from the last time I was on, and it was displaying them on screen, and saving to ram. It couldn't display, and save fast enough. But when I requested it transfer as a file, to be opened later, I had no problem. The program I was using (Ncomm) was compiled, not Basic. Probably, basic is too slow, Amiga Basic, is uncompiled, to boot.


Maybe Amiga Basic hits a barrier at 512 K (who needs more than 640, right?)! It's another fine crap ms-dos product, after all!!!!


.adf files can be broken down into pieces, when they're made, I believe. Make 2 440K files, and use the "join" command to put them back together.

[drHirudo]

If you are running out of RAM you can try splitting the adf image in two or more parts, the first containg the tracks from 0 to 39 and the second from 40 to 79. To do this you can use TransADF (under UAE) and the following commandline:
> TransADF df0: ram:XCopy0-39.adf S=0 E=39
> TransADF df0: ram:XCopy40-79.adf S=40 E=79

TransADF also supports gzipped adfs, the so called adzs, also zlib and pkzip.

[AmigaEd]

Try and make a text file that is 950K in your ram: disk.

I gave your idea a try... it freezes the machine right up when I get up in the 650K range.

Which version of AOS are you using?

I am using Workbench 1.3

When you say 2 Megs., is it 2 Megs + 256K? Do you have 256 K or 512 K of chip ram?

I beleive that I have 512k of chip ram in this system. I have an attached Microbotics Starboard expansion module on the side of it. I believe that this is populate to 2 meg.

I can't beelive how much I have forgotten about all of this!

Does anyone remember if there is a command that I can run to see what the ram config is?

Regards,
AmigaEd

[DethKnight]

Does anyone remember if there is a command that I can run to see what the ram config is?

AVAIL

[AmigaEd]

Thanks DethKnight. I actually had just figured that out about two minutes before I read your post.

I think I'm going to have to try to find a utility to test the ram. I'm starting to think that I've got a bit stuck somewhere.

Regards,
AmigaEd