IIgs Super Hi-Res mode support & emulation on //e

[iolo]

IIgs SHR uses bank $E1 $2000..$9FFF as a framebuffer.
There're no way to support(emulate or physical) it on //e, I guess.

But if we can snoop //e AUX $2000..$9FFF and and render like IIgs SHR,
it might help porting IIgs programs to //e + AppleII-VGA.