Free Kick (bootleg set 4): Difference between revisions
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|4x || [[2k x 8|MCM2018]] || 4e,4l,4m,4q | |4x || [[SRAM 2k x 8|MCM2018]] || 4e,4l,4m,4q | ||
|- | |- | ||
|1x || [[8k x 8|TMM2063P-15]] || piggyback | |1x || [[8k x 8|TMM2063P-15]] || piggyback | ||
Revision as of 17:45, 21 September 2014
| dumper | ANY |
| date | 06/12/2012 |
| emulator | |
| dev |
| name | 1079 |
| description | Free Kick (bootleg set 4) |
| year | 1987 |
| manufacturer |
Technical references
CPUs
| QTY | Type | clock | position | function |
|---|---|---|---|---|
| 2x | P8255A | 4a,2b | Programmable Peripheral Interface | |
| 1x | Z8400AB1-Z80ACPU | piggyback | 8-bit Microprocessor - main | |
| 4x | 76489 | 9n,9p,9q,9s | Digital Complex Sound Generator - sound | |
| 1x | LM324N | 9c | Quad Operational Amplifier - sound | |
| 1x | oscillator | unmarked | 10s |
ROMs
| QTY | Type | position | status |
|---|---|---|---|
| 7x | 27256 | 1-7 | dumped |
| 1x | 27512 | 15 | dumped |
| 2x | N82S129N | 8h,8j | not dumped yet |
| 4x | D74S287N | 7h,7j,7k,8k | not dumped yet |
RAMs
| QTY | Type | position |
|---|---|---|
| 4x | MCM2018 | 4e,4l,4m,4q |
| 1x | TMM2063P-15 | piggyback |
PLDs
| QTY | Type | position | status |
|---|---|---|---|
| 3x | PAL16L8 | 0q,0s,piggyback | read protected |
Others
1x 28x2 JAMMA edge connector
1x trimmer (volume) (10b)
3x 8x2 switches DIP (6a,6b,6c)
Notes
Free Kick hardware
1 is sound
2-7 is gfx
15 is cpu
update 20130917: mail from Charles McDonald:
Another one! It feels like Christmas now.
This is nearly identical to Kevin's set, even the same NOP patches,
other than the external memory at D000-FFFF which shouldn't be
factored in. That memory is completely different since they dumped the
running game at a different point in time. Only 0000-CFFF corresponds
to the original game data, but the bootleggers in each case were lazy
and dumped all 64K like with other bootlegs.
The only differences to the game program/data area are:
119B -> LD A,2 changed to LD A,5
192C -> LD A,2 changed to LD A,5
4000/8000/8020 : Small changes in data
It's hard to say if these are real changes or just bad bits because
the values differ by a few bits in most cases.
Either these dumps (yours and Kevin's) are from the same version of
the game, and one (which one?) has a few bad bits which was the fault
of the bootleggers. Or, one is a very slight change to the other.
I have the feeling given the volatile nature of the RAM in the
original game modules, there will be a lot of bootlegs with a small
number of changes like this. Just a few bits here and there that are
different.
The daughterboard on your set is really cool, they went to some
trouble to recreate the hardware inside the original module.
Regards,
Charles
Files
-
PCB component side
-
Read me
-
ROMs
1079
