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OK, Kale

I have been sent a mail to the game programmer to ask for the Color/RAM/ROM bankswitch.

SMC-777 VIDEO is connected I/O, and only VIDEO ADDRESS is assigned 16bit.

--- I/O MAP ---
0000H-07FFH CHARACTER RAM (2Kbytes C=UPPER ADDRESS B=LOWER ADDRESS)
0800H-0FFFH ATTRIBUTE RAM (2Kbytes)
1000H-17FFH PCG (2Kbytes)
18H-19H CRT CONTROLLER
1AH-1BH KEYBOARD
1CH-1DH STATUS
20H GCW GRAPHIC CONTROLLER
21H 60H INTERRUPT CONTROLLER
23H BORDER AREA
30H-34H FLOPPY DISK
51H JOYSTICK
52H COLOR PALETTE
53H PSG
7EH-7FH KANJI ROM
8000H-FFFFH GRAPHIC RAM (32Kbytes C=UPPER B=LOWER)

--- Z80 GRAPHIC PROGRAM EXAMPLE ---
LD A,7CH <--- GRAPHIC COLOR DATA 2dot(4bit+4bit)
LD B,00H <--- VIDEO ADDRESS LOWER 8bit
LD C,80H <--- VIDEO ADDRESS UPPER 8bit
OUT (C),A
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