Source: OS/2 ORG

DaniS506.ADD r1.3.0 (Posted by Achim Hasenmueller) (js)

Beyond zillions of minor fixes, enhancements, and other changes, some big steps forward could be made. Have a look at the current feature sets:

-(supports the Intel PIIX, just like IBM1S506 does) plus some PIIX4 variants unsupported by IBM1S506 supports the Intel i8xx ICH/ICH0/ICH2 (Whitney/Camino/Carmel/Solano)
-supports the VIA 571 IDE controller (improved)
-supports the ALi 5229 IDE controller (improved)
-supports the SiS 5513 IDE controller
-supports the CMD 643/646/648/649 IDE controllers (this includes OEMs like AMI)
-supports the Promise Ultra33/66/100 IDE controllers
-supports the Cyrix 5530 IDE controller (Cyrix MediaGX)
-supports the HighPoint HPT366/368/370 IDE controller
-supports the AMD756 IDE controller (Athlon 'Irongate' chipset)
-supports the Artop ATP850UF and ATP860 IDE controllers (experimental)
-generic busmaster support for SFF-8038i compliant controllers
-supports PCCard (formerly: PCMCIA) ATA/ATAPI controllers
-no need for chipset initialization by the BIOS (Intel, VIA, ALi, SiS, CMD, Promise, and HighPoint)
-Ultra33-DMA on all of the above chipsets which can do Ultra-DMA
-Ultra ATA-66 on AMD, VIA, SiS, Promise, HighPoint, Intel, CMD and ALi
-Ultra ATA-100 on Promise, HighPoint, Intel, CMD, and ALi (all of these experimental).
-faster PIO due to 32bit IO
-sets device inactivity timers (POWERSV.SYS is no longer needed)
-adjustable SMS length
-adjustable drive noise level
-improved support for removable media drives (in particular Castlewood ORB EIDE)
-can change removable media drives to fixed media drives and vice-versa
-supports devices which don't spin up automatically
-optional limit data transfer rates for more reliability
-adapts/auto-adapts chip timings to PCI clock
-supposed to work with drive capacities up to 128GB (ATA limit),
-tested with drives up to 61GB now
-improved compatibility with current BIOSes (IBM1S506.ADD fails on an increasing number of recent BIOS implementations)
-performance and feature tuning options

http://hobbes.nmsu.edu/cgi-bin/h-search?key=danis506.zip

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