[Jun/17/98]

               VASTAR      SESAME

USES TWO Z80 CPU'S W/AY-3-8910 SOUND

NAME    LOCATION     TYPE
---------------------------
1        2F          2732
2        2J           "
3        4H           "
3        4F           "
4        4H           "
5        4J           "
6        4K           "
7        4L           "
8        4N           "
9        5N           "
10       6N           "
5        4S          2764
6        4N           "
8        7F           "
9        9C           "
10       9F           "
TBP24S10 6M          PROM
TBP24S10 6P           "
TBP24S10 6S           "
TBP24S10 8N           "
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[MAME]

Vastar memory map (preliminary)


CPU #1:

0000-7fff ROM
8000-83ff bg #1 attribute RAM
8800-8bff bg #1 video RAM
8c00-8fff bg #1 color RAM
9000-93ff bg #2 attribute RAM
9800-9bff bg #2 video RAM
9c00-9fff bg #2 color RAM
a000-a3ff used only during startup - it's NOT a part of the RAM test
c400-c7ff fg color RAM
c800-cbff fg attribute RAM
cc00-cfff fg video RAM
f000-f7ff RAM (f000-f0ff is shared with CPU #2)

read:
e000      ???

write:
c410-c41f sprites
c430-c43f sprites
c7c0-c7df bg #2 scroll
c7e0-c7ff bg #1 scroll
c810-c81f sprites
c830-c83f sprites
cc10-cc1f sprites
cc30-cc3f sprites
e000      ???

I/O:
read:

write:
02        0 = hold CPU #2?

CPU #2:

0000-1fff ROM
4000-43ff RAM (shared with CPU #1)

read:
8000      IN1
8040      IN0
8080      IN2

write:

I/O:
read:
02        8910 read (port A = DSW0 port B = DSW1)

write:
00        8910 control
01        8910 write


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