Aha! At last you have found some utility to the extra FlashRom(512KB) space on the cartridge.

Here is the latest IS-DOS source, buildable with either Z80ASM or M80, both using the L80 linker.

Bruce's EXDOS3 changes are included, but currently disabled so that this corresponds exactly to version 1.0 of IS-DOS.SYS


For anyone that wants to track the differences, here is what I needed to change from the original files that Zozo posted ...

"FCB1" and "FCB2" were defined in both START.MAC and the private EXDOS CLIDATA.MAC.  I have renamed the IS-DOS ones, used in START.MAC/CLI.MAC/CMD.MAC.

"ORM" was defined in both CLIV.MAC and the private EXDOS CLIVAR.INC.  I have renamed the IS-DOS ones, used in CLIV.MAC/CMD.MAC.

All uses of the M80-specific "CODE" macro, which were used to either define self-modifying code addresses, or define single-byte opcodes used to skip over the next instruction (to avoid branch instructions), have  been removed and replaced with code and comments that work on both assemblers.

Most of the uses of "IF1" and "IF2" have been changed, since Z80ASM only needs a single pass to build the source.  There are a couple of files left that still use these, but they aren't critical to building a functioning IS-DOS.SYS.


I have included the Z80ASM.COM and SLRLNK1.COM in the archive, both configured (using their CONFIG programs) to default to ".MAC" source files and ".SLR" script files (which avoid the need to rename files to get around CP/M's 128-character line length limit).


There are also 32-bit and 64-bit Windows builds of the modified XCPM that works with Z80ASM, together with a patch file for the changes from the current version of lgb's "ReCPM" project on github.


Enjoy!

May be we could edit more intelligible texts with more space available.

I only miss directory management from ISDOS.

What do you mean exactly? You can use directories under IS-DOS

Pontosan mire gondolsz? Lehet könyvtárakat használni IS-DOS alatt.

I understood now: you talk about IS-DOS function calls (CALL 5)

Értem már, az IS-DOS funkcióhívásokra (CALL 5) gondolsz.

you can already accomplish nearly all of this extra functionality just by using native EXOS and EXDOS calls within an IS-DOS program, or you can just write a native EXOS application.

And you can make an EXOS/EXDOS program that can be run from IS-DOS or loaded as an EXOS program! https://enterpriseforever.com/programming/com-file-for-is-basic-and-is-dos/

Yes, this is something that can reasonably be done ... as long as they don't all get much longer, and so use up a lot of extra space.

Not much longer, only 1 or 2 characters could allow to put an article on the sentence that makes better sense. Also, sometimes other sentences are shorter on Spanish/Hungarian than in English, and that space can be put on other text line. But usually English is a more compact language.

Off-topic: In my opinion, English is more compact and schematic, but on the other side, Spanish or Hungarian languages are more accurate on expressing the thoughts.

A good example from Szipucsu today.

Ok.... maybe I offended somebody, so I am going to explain me.

Haha ... I don't think that any English speaker would be offended by what you said!

For some of us, the imprecision of the English language is one of its charms, and it is the source of a lot of British humour.