> Otherwise it's the RM05 at 256 Meg, if I remember right. But all those > disks are also expected to expose the actual geometry of the disk. While > fairly straight forward, it do expose you to a rather low level > interface, where you need to do a lot of calculations all the time.
All those old disk controllers expose the disk geometry. I've looked at it for the specific case of the RK11 and it doesn't look too bad. If it does turn into a problem, then we'll have a microcontroller on the board too and I'll punt the calculations to it rather than doing them in the FPGA. And my third option is to just do the trivial mapping of the sector/surface/cylinder numbers to LBA and waste space on the flash device. It's not we're so short of storage space in emulating any number of RK, RP, or RM class disk packs.
