diff options
Diffstat (limited to 'src/devices/bus/coco/coco_fdc.cpp')
-rw-r--r-- | src/devices/bus/coco/coco_fdc.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/devices/bus/coco/coco_fdc.cpp b/src/devices/bus/coco/coco_fdc.cpp index 6e434ea3e0a..a5ee7a6d689 100644 --- a/src/devices/bus/coco/coco_fdc.cpp +++ b/src/devices/bus/coco/coco_fdc.cpp @@ -45,12 +45,12 @@ 2007-02-22, P.Harvey-Smith - Began implementing the Dragon Delta Dos controler, this was actually the first - Dragon disk controler to market, beating Dragon Data's by a couple of months, + Began implementing the Dragon Delta Dos controller, this was actually the first + Dragon disk controller to market, beating Dragon Data's by a couple of months, it is based around the WD2791 FDC, which is compatible with the WD1793/WD2797 used - by the standard CoCo and Dragon disk controlers except that it used an inverted + by the standard CoCo and Dragon disk controllers except that it used an inverted data bus, which is the reason the read/write handlers invert the data. This - controler like, the DragonDos WD2797 is mapped at $FF40-$FF43, in the normal + controller like, the DragonDos WD2797 is mapped at $FF40-$FF43, in the normal register order. The Delta cart also has a register (74LS174 hex flipflop) at $FF44 encoded as |