Prehistoric Isle in 1930 (World)
Also known as: Genshitou 1930's, Wonsido 1930's, Prehistoric Isle
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Display
Type: raster Horizontal
Resolution: 256 x 224
Refresh: 59.19 Hz
Processors
Motorola MC68000 @ 9 MHz
Zilog Z80 @ 4 MHz
Audio
YM3812 OPL2 @ 4 MHz
NEC uPD7759 @ 640 kHz
Channels: 1
Controls
Players: 2
Coin slots: 2
joy, 8-way, 3 buttons
joy, 8-way, 3 buttons
Components (from manual)
68000 CPU · Main processor
Z80 Sound CPU · Sound processor
27C301 Memory · EPROM
6264 Memory · 8KB SRAM
74LS139 Logic · Multiple locations · Dual 2-to-4 decoder
74LS374 Logic · Multiple locations · Octal D-type flip-flop
74LS273 Logic · Multiple locations · Octal D-type flip-flop
74LS245 Logic · Multiple locations · Octal bus transceiver
74LS157 Logic · Multiple locations · Quad 2-to-1 multiplexer
74LS04 Logic · Multiple locations · Hex inverter
74LS00 Logic · Multiple locations · Quad NAND gate
74LS32 Logic · Multiple locations · Quad OR gate
74LS74 Logic · Multiple locations · Dual D-type flip-flop
74LS14 Logic · Multiple locations · Hex Schmitt trigger inverter
74LS138 Logic · Multiple locations · 3-to-8 decoder
74LS161 Logic · Multiple locations · 4-bit counter
74LS08 Logic · Multiple locations · Quad AND gate
74LS86 Logic · Multiple locations · Quad XOR gate
74LS393 Logic · Multiple locations · Dual 4-bit counter
74LS368 Logic · Multiple locations · Hex buffer
PAL16L8 PLD · Multiple locations · Programmable logic device
SNK Custom Video · Video processing chip
PCBs (from manual)
CPU Board ALPHA-68K96V
Main processor board
Main processor board
CUB Board
Secondary processing board
Secondary processing board
PAL Board
Palette/video processing board
Palette/video processing board
Clock Board
Clock generation circuitry
Clock generation circuitry
DIP Switch Settings
Data from MAME. On later hardware, game settings are typically in the Test/Service Menu, not DIP switches. Learn more
| Switch | Setting | Options | Default |
|---|---|---|---|
| SW1:1 | Flip Screen | OFF Off ✱ON On | Off |
| SW1:2 | Level Select | OFF Off ✱ON On | Off |
| SW1:3 | Bonus Life | OFF Only Twice ✱ON Always | Only Twice |
| SW1:4 | Unknown | OFF Off ✱ON On | Off |
| SW1:5, SW1:6 | Coinage | SW1:5 SW1:6ON ON A 4C/1C B 1C/4COFF ON A 3C/1C B 1C/3CON OFF A 2C/1C B 1C/2COFF OFF 1 Coin/1 Credit ✱ | 1 Coin/1 Credit |
| SW1:7, SW1:8 | Lives | SW1:7 SW1:8ON OFF 2OFF OFF 3 ✱OFF ON 4ON ON 5 | 3 |
| SW2:1, SW2:2 | Difficulty | SW2:1 SW2:2ON OFF EasyOFF OFF Standard ✱OFF ON MiddleON ON Difficult | Standard |
| SW2:3, SW2:4 | Game Mode | SW2:3 SW2:4ON OFF Demo Sounds OffOFF OFF Demo Sounds On ✱ON ON FreezeOFF ON Infinite Lives | Demo Sounds On |
| SW2:5, SW2:6 | Bonus Life | SW2:5 SW2:6OFF OFF 100K 200K ✱ON OFF 150K 300KOFF ON 300K 500KON ON None | 100K 200K |
| SW2:7 | Allow Continue | ON NoOFF Yes ✱ | Yes |