
to setup:

check what mode the CPU is running in (0x82 or 0x83):
d fffffde7 1

enable ram emulation over reset vectors:
m fffffedb 8

setup CS1 to 16-bit
m fffffed0 fd

setup port G, bit 3 to CS1, DDR=1
m fffffe3f 8

setup WCRL to reflect 00 for CS1
m fffffed3 f9

setup PCDDR to make A[7..0] address-outputs
m fffffe3b ff

setup PBDDR to make A[15..8] address-outputs
m fffffe3a ff

setup PADDR to make A[17..16] address-outputs
m fffffe3a 3

setup PFCR (max 9, because of serial port)
m fffffdeb 9

