Ami-Express Question

[don27dog]

Does anyone know of a way around the 2 GIG barrier. If I assign upload directory to any Partition larger than 2 GIG Ami-Express said No free Space for uploading. If I use a small partition Upload works fine. There doesn't seem to any problem with downloads. I have 100Gig partition and everything downloads fine.

[Methanoid]

Real Amiga or WinUAE?

WinUAE make a hardfile under 2Gb, upload to that, have a script run on logoff (or even on filecheck!) that moves all the files to your 100 Gb partition?

[Toni Wilen]

Probably much easier to patch the size check, should be really easy for anyone who has done similar stuff

[hit]

Originally Posted by Toni Wilen

Probably much easier to patch the size check, should be really easy for anyone who has done similar stuff

had a look for some suspicious code fragments, but my skill are limited.
but i found some "#7fffffff" and "#80000000" entries ( which means size of 2GB ).
anyone more luck, skills?

[Toni Wilen]

Problem is 32-bit overflow and also using signed variables when calculating free space. There won't be any 0x7fffffff's or similar..

[hit]

Originally Posted by Toni Wilen

Problem is 32-bit overflow and also using signed variables when calculating free space. There won't be any 0x7fffffff's or similar..

there is one SUBI.L #7fffffff,... but i dont understand the context. seems they didnt wrote AmiTCP in asm - many obscure offsets, which doesnt make disassembling easier - once i'll give ida a run.
i can see the "No space left on device" message on a certain offset, but no reference to it, in the code. thats too bad. :/

[StingRay]

Since /X is coded in C the compiler most probably used a base register such as a4 and accesses all data relative to this base. IDA Pro won't help you here either if you don't tell it which base register to use.

[hit]

Originally Posted by StingRay

Since /X is coded in C the compiler most probably used a base register such as a4 and accesses all data relative to this base. IDA Pro won't help you here either if you don't tell it which base register to use.

indeed. "D0,($4B70,A4)", thats dosbase. and i edited these entries manualy, since i cant find a way to replace them all (resource). ida must be sort of more intuitive. anyway, the other day.

[StingRay]

Scroll to the line where the base register is initialised, should be one of the first things you see in the disassembly. Once you found that, select 'Convert (xx,a4) EA's -> This operand' from the "*" (SPECIAL FUNCTIONS) menu.

[hit]

Originally Posted by StingRay

Scroll to the line where the base register is initialised, should be one of the first things you see in the disassembly. Once you found that, select 'Convert (xx,a4) EA's -> This operand' from the "*" (SPECIAL FUNCTIONS) menu.

thats did the trick. thanks. saw this funktion and played with it, but of no use. now more readable

[don27dog]

Methanoid,

I am running it on a real A3000T. I had the board up from 88-97 then shut it down and didn't touch an amiga until a year and a half or so. I was home at my parents for x-mas and found my old Amiga in the attic and brought it home with me. After buying some parts from Amigakit I got it back up and running. Wasn't much longer and I put the board back up. A logoff script should do the trick until someone can change the code.

[StingRay]

Originally Posted by don27dog

A logoff script should do the trick until someone can change the code.

Shouldn't be very hard to do but I let Hit try his luck first. I don't have /X here anyway else I would have already checked.

[hit]

Originally Posted by StingRay

Shouldn't be very hard to do but I let Hit try his luck first. I don't have /X here anyway else I would have already checked.

i do my best. managed to find/assign some lables and library bases.
now its even more readable and I try to find the realtion to the "no space left" message

Edit: is there a way to stop a running search operation (resource) - this makes me sick :/

[StingRay]

Originally Posted by hit

Edit: is there a way to stop a running search operation (resource) - this makes me sick :/

Of course there is. Just press right Amiga+A (for abort).

[hit]

Originally Posted by StingRay

Of course there is. Just press right Amiga+A (for abort).

ah, hmm, thnx. winuae only, and keys are not maped (missing Amiga-Keys). but found the menu-entry on the most left, this works too

Edit: after some learning procedures, I've fiddled with AmiExpress ($VER: Version v4.4 (Aug 21 1994, 19:42:44) - size: 323588 bytes) and here is a problem:
the code is relative to A4, first occurance is right at the start: "LEA (START+$04FA58).L,A4" but the biggest offset is $48A1E. so i cant jump to the "$04FA58" offset and use the Special menu (convert ...,A4). :/
are there some unsupported hunks, resource cannot handle?

Edit: *some days later* does really noone know, how to cope with this?

[hit]

*bumP* where are the resource experts?