lidnariq wrote:
If you do NOT need CHR banking or mirroring control and just need 8+32F banking on a maximum of 128KiB of PRG... I think you could get away with just a 74'157, 74'161, and 74'85 or 74'10.
yes,only banking 8k prg at 6000-7FFF.
FOR read 8000-FFFF,
Code:
set prgce to romcs,
set prgoe to 0 or cpu_r/w.
prg_a13 = cpu_a13;
prg_a14 = cpu_a14
FOR write 8000-FFFF
Code:
save a banking number.
BUT for read 6000
I don't know how to.
I try to do the following ,but failed.
Code:
if(cpu_a13&cpu_a14&!romcs)
set prgce to 0 and set prgce to 0.