TRD images on HDD

[VELESOFT]

It's pretty cool, but since nobody using cassette tapes in Russia, almost every piece of software existed was converted to TRD or SCL.

TRD and SCL is standard in Russia, but is very hard find games/files on more TRD images Each TAP/Z80/SNA file use true name and contain only one game/utility. This files sorted by name on HDD with FAT16 is very appropriate solution. With FAT browser you can very fast find any software on FAT16 (same as in ZX emulators on PC). Which way you use for software finding if you have on HDD only disk images ? One image for one game ?(= big size). TAP files is best for game loading. And TRDOS disk is best for work (load/save files)

May be somebody in Russia need to load TZX from HDD, but I never heard about such of thing.320 Kb? 160 Kb? I'm not sure it's standart anymore.

TR-DOS support 4 standard formats of disk.
40trk/ss
40trk/ds
80trk/ss
80trk/ds

TZX files can be used for custom tape loaders(fast loading) and for original speed. DEMFIR support only loading TZX files with standard tape speed.

P.S. BTW, what are you trying to tell me? What is this all about? It is some kind of advertisement?

I write TR-DOS emulator for real ZX machines with IDE support.
http://velesoft.speccy.cz/other/trdo...r_for_mb02.zip

VELESOFT

[Advertiser]

[Adramelek]

TRD and SCL is standard in Russia, but is very hard find games/files on more TRD images

Well, it's not hard for me. What you want to find? If it is not some crap or junk, you'll find it anyway.

Each TAP/Z80/SNA file use true name and contain only one game/utility. This files sorted by name on HDD with FAT16 is very appropriate solution. With FAT browser you can very fast find any software on FAT16 (same as in ZX emulators on PC). Which way you use for software finding if you have on HDD only disk images ? One image for one game ?(= big size). TAP files is best for game loading. And TRDOS disk is best for work (load/save files)

This way probably (OS TASiS):

TR-DOS support 4 standard formats of disk.
40trk/ss
40trk/ds
80trk/ss
80trk/ds

Yeah, but not so many peoples using 40trk/ss or something like that. AFAIK, the size of RAM disk in CP/M and TASiS -- 640 Kb. If you want original size of file (not 640 Kb), you can convert SCL image to IMG. Anyway, it all depends what kind of clone you own. Profi clone probably will not let you use something like SCL or IMG images since it's no software for such formats (but I'm not sure).

I write TR-DOS emulator for real ZX machines with IDE support.
http://velesoft.speccy.cz/other/trdo...r_for_mb02.zip

Sounds interesting. What you using it for?

P.S. If you load TAP file on your DEMFIR, can you save high score table in game?

[VELESOFT]

Well, it's not hard for me. What you want to find? If it is not some crap or junk, you'll find it anyway.

For example:
I download any archives of TRD images from internet. But I can see only names of one image always. And each TRD image contain more games/utilities. This is unusable for fast finding software. I must in emulator (or in spectrum navigator) open each TRD image and search file. Short TRD image is way ? If I choose support only TRD images, I can create new TRD with only one program/game and delete free unused space after last used sector (to end). This is best for using with HDD => size of each TRD image will similar as size of game(similar as TAP size).
ftp://ftp.worldofspectrum.org/pub/si...s/TRDCUT11.zip

Yeah, but not so many peoples using 40trk/ss or something like that. If you want original size (not 640 Kb), you can convert SCL image to IMG.

Where I find structure about IMG format ? TRD is better than SCL/HOBETA. Contain sector copy, no files data only

It depends what kind of clone you own.Sounds interesting. What you using it for?

This is software emulator of KR1818VG93 ( WD1793 ) controller !!! Original code of TRDOS is same, only instructions OUT and IN is replaced by JP EMUL. Emulation routine use software filter that detect command type for FDC controller. And low level routine read/write trdos sector from/to HDD/CF.
With this emulation method will work also russian software with incorrect trdos calling ( jp #3D2F ).

VELESOFT

Добавлено через 19 минут

P.S. If you load TAP file on your DEMFIR, can you save high score table in game?

No, this is very hard for implementation. If you use save to TAP file, each new saved file will add after last file (no rewrited, only add). This version of DEMFIR and FATWARE support only read from FAT. This is designed specially for game playing
DEMFIR = Desktop EMulator FIles Runner
Demfir is designed for using real CD-ROM(DVD), but can work also with any ISO image on HDD/CF. But exist new version of DEMFIR OS with write support !!! This version need 40kB (=more ram pages in low 16kB)

System FATWARE v0.12 is old version with read only FAT support (same as DEMFIR). Is usable only for game playing.
SAVE hi-score is supported in disk games only. This games is only for use with disk. 99.999 % of TAP/TZX games not use SAVE feature.
In development is new version of FATWARE OS with write support...