32 & 16-bit RAM
21-Jun-93 21:58:32
Sb: #104331-32 & 16-bit RAM
Fm: Paul Higginbottom 74140,250
To: donnellan 100121,3133
You're right. I'm just saying we gave users the option of putting memory in or
out of the auto config space so that they'd have memory for Zorro II cards to
DMA into. In your case it's not a problem because you have "other" (16 bit)
memory in the autoconfig space, but for people without that, if they put all 32
bit memory out of the autoconfig space then a Zorro II card with DMA
capabilities could only DMA into SLOW chip RAM.
Of course, on a GVP Combo card it can DMA into its own 32 bit memory without
ever going through the Zorro bus, which is definitely a big performance win.