Borderline
| dumper | f205v, Corrado Tomaselli |
| date | 13/05/2005 |
| emulator | MAME 0.96u3 |
| dev | Pierpaolo Prazzoli |
| name | brdrline on Arcade Database |
| description | Borderline |
| year | 1981 |
| manufacturer | Sidam |
Technical references
CPUs
| QTY | Type | clock | position | function |
|---|---|---|---|---|
| 1x | MK3880-Z80CPU | main PCB 16 | 8-bit Microprocessor - main | |
| 1x | AMI S50241 | sound PCB | 13-Note Top Octave Generator - sound | |
| 1x | LM380N | sound PCB | Audio Amplifier - sound | |
| 1x | oscillator | 10.000MHz | main PCB |
ROMs
| QTY | Type | position | status |
|---|---|---|---|
| 16x | F2708 | main PCB | dumped |
| 1x | F2708 | sound PCB | dumped |
| 3x | 5610 | main PCB | dumped |
| 2x | 93427 | sound PCB | dumped |
| 1x | 82S123 | sound PCB | dumped |
RAMs
| QTY | Type | position |
|---|---|---|
| 8x | TMS4027-20NL | 69-76 |
PLDs
| QTY | Type | position | status |
|---|---|---|---|
| 0x |
Others
1x 22x2 edge connector (main PCB)
1x 16 pins flat cable connector from main PCB to sound PCB
1x soldered cable from pin16 ic64 main PCB to resistor on sound PCB
1x soldered cable from trace on main PCB to resistor on sound PCB
8x trimmers (sound PCB)
1x 8 DIP switches bank (main PCB SW1)
Notes
I have recorded all the sounds during gameplay since there is no test. I hope I haven't missed any.
I have used 44100hz/16bit resolution and didn't apply any filters or effects. The sounds were recorded straight from the pcb.
There are 8 pots on the pcb, one is for the overall volume and others are used to change drastically the sounds of each sound effect: speed, pitch and so on.
I have used the "settings" I like more ;-)
Unfortunately, the end of level sound can't be triggered without destroying the last energy plant, so the "crash" sound is always playing with the first part of the end of level sound.
The boot sound is when you turn on the pcb and it's the same as when you start the game after inserting a coin.
The "field" sound is when the jeep is moving in the brush.
Engine noise play when the jeeps moves (so in the first level is always looping).
If the jeep is in the brush, only field sound plays.
update 20050522: dumped all PROMs
update 20170909: better description and notes
main PCB is marked: "BLC200681"
sound PCB is marked: "BLC300681 MADE IN ITALY"
The gameplay shows "SEGA 1981" on the bottom right corner of the palyfield, therefore this is a 1:1 clone of the original Sega game, but it is not the original hardware! This should be noted in the MAME driver for sake of completeness.
This also means that Borderline (Sidam bootleg) is a later version, when Sidam took the pain to modify the ROMs and remove the original manufacturer copyright from the screen.
Files
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assembled PCBs component side
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Readme
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samples
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