RSC file formats

[joska]

There seems to be three RSC formats:

- Original format.
- TOS >= 4 format (colour icons, > 64k)
- "long" format (Interface, RSM, ORCS, > 64k)

I would expect the original format to be supported by all AES-es, and the TOS 4 format supported by TOS 4, MagiC, N.AES, XaAES and MyAES.

But what is the "long" format for? I understand the benefits over the TOS 4 format, but who uses it?

https://freemint.github.io/tos.hyp/en/a ... tml#RSXHDR

Is this supported by any AES directly, or does it require custom loading code?

[ThorstenOtto]

The ">64k" of TOS 4.04 is only because of the extra data needed for color icons. The actual resource data (OBJECTs, TEDINFOs etc) must still fit in the the first 64k, because all the offsets in the header are 16bit. The "long format" avoids this restriction by changing all offsets to 32bit. Sure, there may be not many applications that will need this (but ORCS is one of them

AFAIK, only XaAES supports that format via rsrc_load(), but it can be detected using appl_getinfo(2).

[Moulinaie]

Where can one find the documentation about the Long format?

Guillaume

[joska]

The TOS formats:

https://bus-error.nokturnal.pl/atari_co ... dc.htm#rsc

Interface/RSM/ORCS format:

https://freemint.github.io/tos.hyp/en/a ... tml#RSXHDR

There's a library "xrsrc" in the Interface archives for loading and using RSC files in this format.

[OL]

As I know, the long format come from INTERFACE and source code was provide to use it.

MyAES support this for ever with rscr_load().

[Eero Tamminen]

I would expect the original format to be supported by all AES-es, and the TOS 4 format supported by TOS 4, MagiC, N.AES, XaAES and MyAES.

TOS 4 format is supported also be (newer versions of) EmuTOS.