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I have modified DDOS12A and renamed the result as DDOS12B Now it KILLs any file and restores all the sectors of every extent in the FAT So, presumably is a bit better than version 12A, but needs more tests to be done You can find it attached here regards pere PS. The modified version with the patch ...

Hi, I attach here the P G Scott's document about how to solve the DDOS1.0 problems and a document I have written with the differences that I have found comparing the two ROM files I will modify DDOS12A to restore the part of KILL destroyed by the b patch for Problem 2 (was not needed) At the same ti...

Hi Sixxie,

in fact the files I had were all of them 16132 bytes long, so no n x 256 bytes.
Once Stew has shortened them by the end to just 16128 (exactly n x 256) they work flawlessly

cheers
pere

sorry,

I forgot to mention that DDOS12dir has the same problem that DDOS12 and DDOS12A with respect to the KILL command

cheers
pere

Ps. I am going to post a document with the diffrences between DDOS11C and DDOS12A and the PG Scott's patches doc in the other thread

Hi Stew, good point! You are right, if we want to use a 16k ROM we should deduct the range FF00 to FFFF that cannot be used (it's SAM domain) So $4000-$100 = $3F00 => 16128 exactly as you have said. No problem deleting from the end, because there is Nothing there ... Well, now we could use these bet...

Reading Philip Scott's patch document and referred to Problem2, he says that there are two ways to solve it: patch a) that impies solving Problem 1 too, and patch b) that implies reserving some RAM from $7FEF to store the patch there (code is PIC so could be allocated anywhere) In DDOS12A, Problem1 ...

Hi, Steve I will give a peek at the whole document. The code area that conflicts is this: From $CFEE to $D000 is different code. DDOS11C works OK, DDOS12A doesn't I attach here a VDK image to be used as test with both DOS You can KILL any file that just uses an extent: DONKEY, BTRACK, ASTRO (this on...

I am just copying here the text included in some messages of the thread "XRoar and 16k DOS" where I mixed two different problems: ============================================================================================================================== I have noticed that DDOS12A has a flaw in t...

Hi Stew! all DOS files 8192 bytes long do load flawlessly in XRoar. The problem I have found, happens when I try to load the special modified DOS files to give them a very nice DIR function. I can use them going MAP1, and copying them from RAM to ROM area, but wanted to use them with XRoar ... fail ...

Reading Philip Scott's patch document and referred to Problem2, he says that there are two ways to solve it: patch a) that impies solving Problem 1 too, and patch b) that implies reserving some RAM from $7FEF to store the patch there (code is PIC so could be allocated anywhere) In DDOS12A, Problem1 ...