Outerworld Arcade
Space Encounters

Space Encounters Technical Info


Progam starts at $0000
Ram $2000-$3FFF
$2000-$23FF Stratch Area, Stack adds backwards from $2400
$2400-$3FFF Video Memory

ROM_START( spcenctr )
ROM_REGION( 0x10000, REGION_CPU1, 0 )
ROM_LOAD( "4m33.h", 0x0000, 0x0800, CRC(7458b2db) SHA1(c4f41efb8a35fd8bebc75bff0111476affe2b34d) )
ROM_LOAD( "4m32.g", 0x0800, 0x0800, CRC(1b873788) SHA1(6cdf0d602a65c7efcf8abe149c6172b4c7ab87a1) )
ROM_LOAD( "4m31.f", 0x1000, 0x0800, CRC(d4319c91) SHA1(30830595c220f490fe150ad018fbf4671bb71e02) )
ROM_LOAD( "4m30.e", 0x1800, 0x0800, CRC(9b9a1a45) SHA1(8023a05c13e8b541f9e2fe4d389e6a2dcd4766ea) )
ROM_LOAD( "4m29.d", 0x4000, 0x0800, CRC(294d52ce) SHA1(0ee63413c5caf60d45ae8bef08f6c07099d30f79) )
ROM_LOAD( "4m28.c", 0x4800, 0x0800, CRC(ce44c923) SHA1(9d35908de3194c5fe6fc8495ae413fa722018744) )
ROM_LOAD( "4m27.b", 0x5000, 0x0800, CRC(098070ab) SHA1(72ae344591df0174353dc2e3d22daf5a70e2261f) )
ROM_LOAD( "4m26.a", 0x5800, 0x0800, CRC(7f1d1f44) SHA1(2f4951171a55e7ac072742fa24eceeee6aca7e39) )
ROM_END

Out $00 ($2043)
BRITE $02
NO PLANET $08
- $0E
COIN $0F

Out $09 ($21a1)
(ATTRACT) $00
WIND $02-0D
EXPLOSION $10
PLAYER SHOT $20

Out $11 ($21a2)
(ATTRACT) $00
SAUCER $00
-(NO SAUCER) $20
SCREECH $21
ENEMY SHOT $22
STROBE $24
LAMP $28 - Combined Strobe and Lamp $2C
(ATTRACT) LAMP $08
BONUS $30

Out $01 ($21a0)
(ATTRACT) $00
(GAME_ON) $01
CRASH $05

outs
0025:
out $00
$2043
ori $20

0108:
out $00
$2043
-

010f:
out $04
$2047 - ($00 unless flying in space)
-

04b2,4:
out $07
$2098

04bb:
out $00
$2043

0774!

0778:
out $01
$21a0

077c:
out $09
$21a1

0780:
out $11
$21a2