1. Add the original AMD 53c974 (AMD bios only and revision 0x00 compared to the A revision which is 0x10 in the PCI regs) as well as correcting the SCSI bus reset when prompted (ESP CMD 0x03), the latter fixes DawiControl 53c974 drivers on win9x.
2. Check if DMA length is not 0 for DMA transfers.
3. More logs for possible problem diagnostics.
1. Add working 16k AMD bios.
2. When the Message Accepted ESP command is issued, don't clear the Internal State/Read Sequence ESP reg to 0, this fixes the AMD bios devices detection.
Change "BIOS Address" -> "BIOS address"
Consistency for "KB" in Xi8088 configuration
Fix incorrect source strings and restore their correct translations
that were lost; apply trivial edits
Fix duplicate strings in the Polish translation
1. Implemented as best as possible the MDL S/G required by NeXTSTEP/OPENSTEP, fixes detection of storage devices.
2. Timer bits from the Clock registers are now implemented.
1. If the timer result is less than 10.0 microseconds, then adjust it to 10.0. Fixes some timing read issues with the T128 (and possibly PAS SCSI).
2. Remove unused variables.
1. The PAS SCSI controller driver mamv1.sys dislikes having bits 0-6 set when a transfer has completed, take account from this, fixes mamv1.sys incomplete CD transfers (bits 0-6 get re-enabled when the transfer is ongoing).
2. I now understand why the T128 doesn't have a block count register, it does the block count manually from the SCSI layer directly, this fixes Pseudo-DMA transfers when using, e.g.: CD transfers using a sector size of 2340 bytes.
1. Avoid audio stops when they don't need to be.
2. And improved the MMIO-based NCR 53c400 timings to be similar to the port I/O-based one (T130B).
3. Minor timing fixes to the T128/PAS as well (especially for the hdd, when entering Windows 1.x using a SCSI HDD).
1. Made as best as possible implementation of the status bits 1-2 of the Trantor 128 so to make a more accurate speed for SCSI devices (CD-ROM and HDD) without stalls.
2. Slightly reorganized the timer of the T128.
1. Make IRQ's more correct and per manual.
2. Only an adapter reset command should reset the SCSI devices connected to it.
3. Differentiate the two controllers by the connector bit (pos3 bit 12) in the CMD GET POS INFO SCB command.
4. Actually emulate bit 7 of pos4 in the pos writes so that selection between 16KB and 32KB rom loading is done properly.
5. Some cleanups.
PC Enterprises GameMaster, Resound jr (adlib)
MS Booster/PC Enterprises jrBus-Mouse, PC Enterprises GameMaster (bus mouse)
Various (generic) RTC
Corel LS2000 SCSI
1. Made logs more consistent.
2. Actually add Write and Verify command, used by IBM OS/2 1.2 Extended, and fixes a hang by said OS after inserting disk 6.