On Wed, Feb 07, 2001 at 10:02:11PM +0100, Alex Wulms wrote:
] Following bit table is applicable for the two drive number bits:
] B1 B0
] 0 0 : drive A selected
] 1 0 : drive A selected
] 0 1 : drive B selected
] 1 1 : no drive selected
]
] Uhm once I connected two external
] On Wed, Feb 07, 2001 at 10:02:11PM +0100, Alex Wulms wrote:
] ] Following bit table is applicable for the two drive number bits:
] ] B1 B0
] ] 0 0 : drive A selected
] ] 1 0 : drive A selected
] ] 0 1 : drive B selected
] ] 1 1 : no drive selected
] ]
] ] Uhm once I
On Tue, Feb 06, 2001 at 10:31:42PM +0100, Alex Wulms wrote:
In Sony machines and in NMS8245, some wd2793 registers (track, sector) are
write only. In first version of fastcopy I mantained track number and sector
number by just looking at the registers. This version did not work on Sony or
On Wed, 7 Feb 2001, Sean Young wrote:
Alex, IIRC you had the datasheet for the Panasonic disk controller (TC8566),
do you happened to have scanned it?
Sometime ago, Alex Wulms sent a hardcopy of the TC8566AF datasheet to me
by snail mail. One of my goals was to create a digital version of the
I'm working in disk emulation via the wd2793 in mess. This will have far more
authentic emulation. First of all I'm working on emulating the Philips diskrom,
I've found the following:
Write:
7FF8: wd2793 command register
7FF9: wd2793 track register
7FFA: wd2793 sector register
7FFB: wd2793
On Tuesday 06 February 2001 16:12, you wrote:
Can someone verify the correctness of this?
I'll look into it in more detail later.
I noticed you missed the motor on signal. It's bit 6 of #7FFD.
Also does anyone know if the Sony machines use the same layout?
There is a small difference in
Hi,
In Sony machines and in NMS8245, some wd2793 registers (track, sector) are
write only. In first version of fastcopy I mantained track number and sector
number by just looking at the registers. This version did not work on Sony or
NMS8245. Later, I corrected by maintaining track number and
