Changes
/* Main Chipset */
1 UM6845 6845 CRTC (D25=sheet2)
1 AY-3-8910 AY3-8910 PSG, Dual I/O (D18=sheet2) (with TWO I/O ports, unlike as in CPC)
4 KR1802IR1 AM29705 ? RAM 2x16x4 16x4 (D60,D61=sheet2=palette, D62,D63=sheet4=keyboard)
1 KR1810WG72 uPD765 FDC (D70=sheet3)
1 KR580WI53 8253 baudrate timer (D33=sheet4) (/CS=/CS53, A0,A1=A0,A1, D0-D7=AY0-AY7=PPIpa) (/WR only, no /RD) (CLK0,CLK1=WGPTCLK=16MHz/n, see sheet3)
