Working on the Search function of MCAmiga, again try to get close to the function midnight commander is offering.
I put the search function into a thread that you easily can continue to work, even the search is still running, (as midnight commander also do it). Atm you can press F3 to view the file or F4 to edit or enter to jump to the file directly. It works already nicely but still needs a little bit work, especially the mouse control needs some care.
Because I got this question already some times, and I do not want to write it again and again, I just make this blog post that I can simple point to at any time 😉
Why my Programs does not work on AmigaOS4 X5000?
The problem is, that FreePascal itself does not know the X5000 CPU, and it seems to be not a normal PowerPC, but needs some special care. I heard something about special alignment problems. I don’t have a X5000, Charlie doesn’t have a X5000 and we do not know whats special about it to fix that issue. Besides, we both are not really using OS4, we both use Classic and MorphOS and I use additionally a big Part AROS (mainly i386 a bit ARM).
As some might notice, long time there was no working AmigaOS4 FreePascal, because I did not have any OS4 capable computer. I used mainly AROS, Charlie used mainly MorphOS and both we used some kind of Amiga68k and that was exactly the work shares we did in FreePascal. Charlie asked and explained some times that there could be an AmigaOS4 port (an older Version was still inside) if someone would step up as Maintainer for it. We didn’t want to do, we had AROS and Amiga68k and MorphOS already. Which is already much to work on. Besides OS4 is a completely different kind of fish (because of the Interfaces).
Then one day this thread came along and if you follow the thread you can see, Charlie decided to make the initial OS4 implementation and someone said, he will step up as maintainer, but sadly this didn’t happen. I’m too much of a FreePascal Amiga guy to let that port in such sorry state and started to implement the rest nevertheless, making me the maintainer for OS4, even I had no interest to be. Of course I’m a big fan, that all four platforms are now supported by FreePascal and due our continuing work on it, they are 99% compatible. (e.g we hid the OS4 Interfaces away, so you do not need to care about that when writing your software)
Recently I bought a AmigaOS4 computer (thanks again to the one sold me that, its working nicely), because in UAE it’s not really usable. But I only use it to test FreePascal, my programs the installer and so on. But for that a some thousands Euro machine would be overkill (and also waste of space). I try to keep the FreePascal AmigaOS4 at least somehow working but not more. In the end the message stays:
If you are interested in Pascal and Amiga(OS4) and want to help with the compiler doing a better job on X5000 (or any other computer as well) you can just do it, it’s open source, send us a patch. If you want to step up as maintainer for AmigaOS4, even better, contact ChainQ/Charlie or me, of course we will happily help. Do not fear, you will not be left alone.
Due to multiple questions, yes it is possible to compile MCAmiga for 68000 as well, even it would still need AmigaOS3.x to work. But because I got some requests also to supply such a binary a made a separate archive for a Version for 68000, it’s not really tests, at least it starts:
But no promises about the function. It is rather slow but somehow usable.
Finished a little bit more MCAmiga testing, especially on MorphOS and AmigaOS4 there where some serious problems. On AmigaOS4 the device view did not work at all, just crashed, reason was a bug in the AmigaDOS unit of FreePascal. I fixed that exact problem already for other platforms, and now also on AmigaOS4. On MorphOS only tiny changes are needed, mostly related to the supplied lha being a little bit different than the one on classic, but still very close. AROS was a bigger problem, the lha command here is completely different, very limited actually, for example you cannot extract a single file.
I got a hint from Charlie to use cad to unpack archives, because it supports many different formats and it’s available for at least classic and MorphOS, I found out for AROS there is also a version in contrib, that means at least Icaros even comes automatically with it. AmigaOS4 seems not to have it, at least I did not find it. It works very nicely, easy to operate, but sadly it’s only for unpacking archives, no way to pack them. That means the functionality is limited to read only access in MCAmiga. Therefore I gave xad a lower priority over the native lha/lzx programs, except on AROS because there xad is the better choice, the native lha command does not work at all.
Besides that big feature for handling archives, I added a lot of small stuff, like Shift cursor keys to select file, or Ctrl cursor keys to jump fast up and down or to first item (left) or to last item (right). Start programs with enter and wait for finish or with Shift Enter an do not wait for it, so effectively start it in a new shell.
The Source is now also available on GitHub completely. I did put it there on the first release but I forget to push the changed source. I committed locally only. But now the full source should be there, so take it an improve it and most importantly have fun with it.
For now that is already a very useful program for me, more or less finished. I do not really need more than that, maybe one day one could add an editor to it, especially an hex editor. But at the moment I don’t need it.
The requirements did not change, still Amiga 68020+, 4 MB, AmigaOS3.x, AmigaOS4 (except X5000), MorphOS 3.x, AROS i386 ABIv0, AROS ARM ABIv0, AROS x64 ABIv1 NonSMP
Looking beyond my nose, Charlie did update the Atari port of FreePascal a bit also added more example programs, the famous cube and a picture showing example. I added them to the Atari FPC Online Compiler as examples and updated the compiler as well. That should be very easy to everyone to try. Have Fun!
Working on the lha handling inside MCAmiga, would be nice to have it like in Midnight commander where you can directly browse inside archive, add, remove files, and even edit files inside.
I got it somehow to work, still with some limitations, for example, LHA you cant create an empty directory, so I create the directory with a ‘delete_me’ file inside. Also when the directory is created “merged” on adding (usually means added together with its parent directory) you cant remove it, if will stay there, even empty. But still it works already very nicely. Until now you can copy files to archive, copy file from archive, make a new directory, rename files. View and edit files (also with external tools, file is extracted to temp dir). Also introduced the Tools menu (F2) well known from midnight commander.
I did not try on AROS/MorphOS or so until now, hmm curious if all LHA versions are the same, I should try some different versions 😉
Thanks to some hints/wishes in amiga.org forum I spend some time to optimize the use of MCAmiga on lowest possible setting, thats means a high res, no interlace screen with 4 colors, like starting without startup-sequence. It works quite nicely, one still can see activated entries, so it’s somehow usable, but of course on a real Amiga will be quite slow.
Worked a little bit on the mouse control for MCAmiga, the mouse/video unit combination makes it very easy, exactly the same mechanisms than the keyboard events. So now you can also use the mouse to click on buttons or select files. The search and jump function was already included in the last version but I did not show them in a video, so I included them here.
The second part was to activate app window functionality, that you can drag and drop a file onto one of the two panels and the program will automatically jump to that directory and file. I did give me some headache though, because initially it did not work on Classic Amiga and MorphOS, and I found out that the FreePascal workbench unit had a big bug. The syscall offset of the needed Function AddAppWindowA was wrong. Now thats fixed as well.
Download as always for all Amiga systems on the programs page.
MCAmiga work continues, move now completely works (also with the fast move when source and destination are on the same harddisk). I build in a little text viewer also with hex display which I use very often, and for editor you can define yourself which editor you want to use, ed, editpad or what else you like. Already works very nicely and I use it frequently now, and hopefully that motivates me to improve it further. 😉
There where some little changes needed to make it compile for other Amiga Systems (AROS, MorphOS, AmigaOS4) but not serious changes, but I did not try them, so be careful when using it.