cbm kernal vs jiffy dos compatability
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From: bluebirdpod on 3 Dec 2008 17:25 > > No I didn't but stop shouting at me ;) > > The reason I asked is that I'm trying to get Pool of Radiance working > on my uIEC. I've found you can dump all 6 disks into one directory and > it will load everything fine for the most part with the regular kernal > (I think it wouldn't save the game) but with the uIEC and jd it > crashes at 3 important points - create a character, begin adventuring > and view character. I guess it depends on how the character data is stored and read back into the 64. On Legacy of the Ancients, it does not write a file to your character disk, but instead it does sector writes onto the disk, which would make it hard to make it file copieable., But on nostalgia's website they nosdos'd it, and made the game one sided, and it stores your character onto the game disk, guess they reverse engineered it and moved stuff around and the like. Maybe this game can be converted to dream load or nosdos and that might fix it. http://cosine.org.uk/n0s/games/200_LegacyOfTheAncients_1987_ElectronicArts.d64.zip http://nostalgia.c64.org/ -BBP
From: bluebirdpod on 3 Dec 2008 17:27 one more thing, look at the .txt file in the zip archive, and it explains problems with JD and what JD does when it is attempting to access the IEC bus. the following is from the Legacy of Ancients release txt file. +-------------------+---------------------------------------- +------------------+ |Why this Re- release ? | |--------------------- | |We originally released this game in december 2006. | |Then sometime later we found out there was a couple of bugs with the loader: | | | |* The scanner only detected 1541 drives properly from device #8 - FIXED! | | | | This bug was caused by Action Replay and Retro Replay. Those carts set | | register $1802 to $7a, but doesnt put the original value back ($1a) | | So when I send "UI" the drive chokes and forces the 1541 to device number #8 | | So if you ran it from device #9 you suddenly loose connection. | | This bug only happened if you loaded the boot file with AR/RR fastloader ON. | | Turning drive on and off after loading boot file would set $1802 properly. | | | |* The loader on CMD HD didnt work - Fixed! | | | | It was a tiny patch bug. | | | |* The loader for 1541 drives only worked as device #8 - Fixed! | | | | We forgot to mask the device number bits of $1800 in the source code. | | | |* Some people with jiffydos had problmes running this game. It turns out that | | even my disk original doesnt work with jiffydos. The reason is the "load" | | basic calls. When a Load is called from basic, Jiffydos jumps in and pre- | | sniffs on the device line. It tries to communicate with the drive. | | Or should i say, It tries to communicate with N0SD0S. | | That won't work! So disable Jiffydos on your C64/C128 or you won't be able | | to run this game. | | | | Requirements: | |------------- | |C64/C128(D) with a 1541 drive. | | | |If wanted you can play this game using: | |1570,1571 (must run in 1541 formatted disk) | |Oceanic and other 1541 clones. | |1581, CMD FD 2000, CMD FD 4000, CMD HD | |IDE64 with idedios v0.9x + | |REU with 256 kb (use the transfer option) | |REU with 512 kb (use the decrunch option) | | | |How to load: | |------------ | |Insert the boot disk. | |Load and run the boot file, then insert the game disk | |Characters will be saved onto the game disk. | | | |How to copy: | |------------ | |You can use filecopy on all files or backup complete disks. | |You can use maverick's 1541/1581 copier to copy the game to a 1581 disk | |Use fcopy (from cmd) to copy the game to cmd devices. | |Do not use cmd with 1581 formatted disks, it must run in native mode. | |When copying to 1581 or cmd, remember to place the boot file and game file | |in the same dir. | | | +------------------------------------------------------------------------------- + |n 0 S t A l G i a .:[ t H e w A y W e R e m E m B e r I t ]:. n 0 S t A l G i a| +------------------------------------------------------------------------------- +
From: christianlott1 on 3 Dec 2008 19:00 On Dec 3, 4:27 pm, bluebirdpod <bluebird...(a)gmail.com> wrote: > | > |* Some people with jiffydos had problmes running this game. It turns > out that | > | even my disk original doesnt work with jiffydos. The reason is the > "load" | > | basic calls. When a Load is called from basic, Jiffydos jumps in > and pre- | > | sniffs on the device line. It tries to communicate with the > drive. | > | Or should i say, It tries to communicate with > N0SD0S. | > | That won't work! So disable Jiffydos on your C64/C128 or you won't > be able | > | to run this > game. | That might be it. I'll have to replace the load call with acptr etc.. i guess? Thanks for the help. I'm pretty sure there are just two load routines in the program so that shouldn't be too hard.
From: christianlott1 on 3 Dec 2008 20:09
On Dec 3, 6:00 pm, christianlott1 <christianlo...(a)yahoo.com> wrote: > That might be it. I'll have to replace the load call with acptr etc.. > i guess? > > Thanks for the help. I'm pretty sure there are just two load routines > in the program so that shouldn't be too hard. No, that doesn't make sense. That would mean it couldn't load a character or a saved game which it can. |