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mazerbla.c: add notes about the game pcbs [Lord Nightmare, Quarterarcade]

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Jonathan Gevaryahu 2013-05-23 01:24:19 +00:00
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src/mame/drivers/mazerbla.c
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@ -5,8 +5,57 @@ Great Guns by Stern Electronics (c) 1983
Driver by Jarek Burczynski
Added notes by Lord Nightmare
2003.03.19
Notes:
======
Mazer blazer consists of four boards in a cage:
ZPU-2000 - main cpu board
- this board has the main cpu on it and four roms (seven sockets for roms, three empty)
- roms in sockets "ROM0"@H1 "ROM1"@H2 "ROM2"@H3 "ROM3"@H4
- "ROM4"@H5 "ROM5"@H6 "ROM6"@H7 are empty
- roms are marked "MAZER BLAZER // ZPU <rom#> RA<revision#> // 1983 STERN"
- 32 dipswitches in 4 banks of 8
- four 'test button' style switches
- one 4Mhz xtal @A1
- this same board is shared with cliff hanger (clifhgr.c)
CFB-1000 - video/subcpu board
- this board has a sub-cpu on it and four roms (six sockets for roms, two empty)
- the roms go in sockets "ROM0"@G8, "ROM2"@K8, "ROM3"@K10, "ROM4"@K11
- "ROM1"@G6 and "ROM5"@K12 are empty
- roms are marked "MAZER BLAZER // CFB <rom#> RA<revision#> // 1983 STERN"
- "shared ram" ?6116? SRAM @G3
- DIP64 custom framebuffer controller "Video Controller"@E11
- "Parameter ram" ?6116? SRAM @K13
- "Frame buffer" 16x ?4116? DRAM @ right edge of pcb
- "Erase PROM" @A16 (UNDUMPED)
- 22.1164Mhz xtal @K14
- 8 dipswitches in 2 banks of 4, @B5 and @B7
- LED @B7
VSB-2000 - sound/speech/subcpu board
- this board has a sub-cpu on it, a digitalker speech chip, 4 roms (2 dumped, 2 undumped) and 4 PROMs (all dumped)
- Z80 CPU @E6
- Roms at "ROM0"@D2, "ROM1"@D4
- MM54104 Digitalker "SPU" @A6
- Roms at "ROM2"@A2, "ROM3"@A4 (UNDUMPED)
- roms are marked "MAZER BLAZER // VSB <rom#> RA<revision#> // 1983 STERN"
- Sound section
- PROMS: 82s123: @B8 @B9; 82s129: @G8 @G9 (all dumped)
CRF-1001 - RF Filter board for video/audio output
- this same board is shared with cliff hanger (clifhgr.c)
Versions:
======
Mazer blazer's zpu-2000 roms are known to exist in at least the following versions:
RA3
and probably exist in versions RA1 and RA2 as well.
It is currently unknown what versions the two sets correspond to.
The other roms are likely always version RA1, as the RA3-zpu-2000 board has RA1
roms for all roms except the zpu-2000 board.
Issues:
======