diff options
Diffstat (limited to 'src/mame/drivers/segas32.c')
-rw-r--r-- | src/mame/drivers/segas32.c | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/src/mame/drivers/segas32.c b/src/mame/drivers/segas32.c index a92d195e589..9e809fe6ff7 100644 --- a/src/mame/drivers/segas32.c +++ b/src/mame/drivers/segas32.c @@ -2503,26 +2503,26 @@ MACHINE_CONFIG_END requires 2 linked system32 pcbs requires additional math DSP to be emulated - The link PCB attaches 2 System 32 mainboards together, then ROM boards for each mainboard attaches to the link PCB. - This provides a direct connection between the PCBs (NOT a network link) so they effectively operate as a single boardset - sharing RAM (we should emulate it as such) - - Link PCB is a single sparsely populated romless PCB but contains - - Left side - 1x MB8431-12LP (IC2) - 2x HD74LS74AP (IC6, IC7) - 2x GAL16V8A-25LP (stamped 315-5545) (IC3) - - Right side - 1x MB8421-12LP (IC1) - 1x GAL16V8A-25LP (stamped xxx-xxxx) (IC5) - 1x HD74LS74AP (IC8) - 1x GAL16V8A-25LP (stamped 315-5545) (IC4) - - (todo, full layout) - - The left Rom PCB (master?) contains a sub-board on the ROM board with the math DSP, the right Rom PCB does not have this. + The link PCB attaches 2 System 32 mainboards together, then ROM boards for each mainboard attaches to the link PCB. + This provides a direct connection between the PCBs (NOT a network link) so they effectively operate as a single boardset + sharing RAM (we should emulate it as such) + + Link PCB is a single sparsely populated romless PCB but contains + + Left side + 1x MB8431-12LP (IC2) + 2x HD74LS74AP (IC6, IC7) + 2x GAL16V8A-25LP (stamped 315-5545) (IC3) + + Right side + 1x MB8421-12LP (IC1) + 1x GAL16V8A-25LP (stamped xxx-xxxx) (IC5) + 1x HD74LS74AP (IC8) + 1x GAL16V8A-25LP (stamped 315-5545) (IC4) + + (todo, full layout) + + The left Rom PCB (master?) contains a sub-board on the ROM board with the math DSP, the right Rom PCB does not have this. */ ROM_START( arescue ) |