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General Category => Programming => Topic started by: Joseman on 17:35, 14 April 15

Title: Bonny Dos, behaviour before reset roms
Post by: Joseman on 17:35, 14 April 15
Hi

Anyone knows how BDOS works when the roms are reset with this?

ld de,&0000
ld hl,&abff
call #BCCB

I use this code for multiload games that overwrite / erase the firmware block, when a level is going to load, i restore all the ROMS, the firmware and the last used drive (&be7d), with drive A & B it works, but from HD with BDOS it seems that something is wrong.

Perhaps BDOS store the HD path used in memory and when the roms are reset this path is reinitialized to something different where the game is stored hence the fail to load?

Thanks!

Jose
Title: Re: Bonny Dos, behaviour before reset roms
Post by: TFM on 17:41, 14 April 15
That thingy stores something in the expansion RAM, that should be considered. It's pretty incompatible anyway.
Title: Re: Bonny Dos, behaviour before reset roms
Post by: Joseman on 17:48, 14 April 15
Yes is a pain in the ass  ;D Just kidding!! :laugh:

I know that stores data in the expansion RAM (i have problems with that too with my shiny working HD copy of U.N.Squadron), but now i'm trying with another game "Sol Negro" that loads an ending part once you finish the game, i make all the operations in the first 64k's bank, but it doesn't work either!!  >:( .

Please @SyX (http://www.cpcwiki.eu/forum/index.php?action=profile;u=324) finish ACMEDOS soon please!!!  :P
Title: Re: Bonny Dos, behaviour before reset roms
Post by: Ast on 18:08, 14 April 15
Just to say you TotO is not programming the ACMEDos.... Tribute to SyX!
Title: Re: Bonny Dos, behaviour before reset roms
Post by: TFM on 18:30, 14 April 15
Patience is a virtue. Good things take it's time.  :)
Title: Re: Bonny Dos, behaviour before reset roms
Post by: robcfg on 22:09, 15 April 15
Syx is quite busy with exams at the moment, but will be back in 3-4 weeks.
Title: Re: Bonny Dos, behaviour before reset roms
Post by: Joseman on 22:37, 05 May 15
@Pentagon (http://www.cpcwiki.eu/forum/index.php?action=profile;u=562)

Do you know something about this or perhaps we can ask to Timo?

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