This adds support for building the apple one design for mystorm Blackice II with attached Digilent Pmods for vga and ps2
VGA port is working through a Digilent VGA Pmod on Pmod 7/8/9/10
PS/2 keyboard uses a Digilent PS/2 Pmod on Pmod 12
Install a recent IceStorm toolchain, and:
$ cd yosys
$ make
To load BASIC type "E000R" with CAPS LOCK on.