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symbolics.cpp: Added model list of the various Symbolics Inc. Lisp machines [Ian F./trintr0n]

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Lord-Nightmare 2016-03-21 04:30:21 -04:00
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src/mame/drivers/symbolics.cpp
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@ -1,9 +1,27 @@
// license:BSD-3-Clause
// copyright-holders:Jonathan Gevaryahu
// thanks to: Ian F./trinitr0n
/******************************************************************************
Symbolics 36x0 (really in this case, 3670; the original 3600 is considerably rarer, 3670 is backwards compatible for the most part)
TODO: add credits, backstory, history, etc here
Front-end Processor dumped only, so far, plds/proms/pals not dumped yet
Layout of all the Lisp machine models symbolics made, roughly in chronological order:
LM-2 - basically a CADR (i.e. a clone of the MIT CADR machine, but doesn't require an umbilical to a PDP-10 like CADR did? this needs more research)
3600 - precursor to the L-machine, 98% of the actual L machines- an extended and polished CADR. uses the pre-PE console
3670 / 3640 {large, small} L-machines, same architecture but the large cabinet has more slots for boards and can take larger disks like EAGLEs
3675 / 3645 - Faster L-machines; same core board set but they come with the later released FPA and instruction prefetch units; ~ 1.5x faster; this is the fastest pre-Ivory machine, faster than all the 36xx machines below
3620 - Small G-machine, no room for color graphics etc
3630 - Small G-machine with room for a color CADBUFFER (256 color). a "big" 3620
3650 - Big G-machine; same core boards as a 3620 / 3630 but more slots and can take bigger disks. The size of the "Small" L-machine (3640)
3653 - Basically 3 3620s in a 3650 case.
3610 - A gimped 3620- no difference but the ID PROM. Licensed for application deployment but not development
MacIvory - First gen ivory, basically a MacIvory II with worse cycle time
XL400 - First gen ivory (same as MacIvory II) chips in a standalone machine
XL1200 - Second gen ivory (same as MacIvory III) chips, faster, uses memory on the card itself, otherwise in the exact same setup as the XL400
NXP1000 - An ivory in a standalone pizzabox. No console connection, FEP prompt over serial, Genera access only over network (X11 forwarding for gui), has scsi disks
There were both 256 color (cad buffer) and true color w/framegrabber options for the 36xx family
3670 new version 'NFEP' Front-end Processor dumped only, so far, plds/proms/pals not dumped yet
TODO:
The entire lispcpu half (more like 3/4) of the machine
@ -13,7 +31,7 @@
2048x8bit SRAM @F7 and @G7
keyboard/mouse (a 68k based console dedicated to this machine; talks through one of the MPSC chips)
am9517a-50 DMA controller
'NanoFEP' i8749 mcu which runs the front panel and rtc clock (only on 3600, the 3670 lacks this)
'NanoFEP' i8749 mcu which runs the front panel and rtc clock (only on original 3600, the 3670 and all later machines lack this)
DONE:
ROM Loading
@ -133,6 +151,9 @@ a23 a22 a21 a20 a19 a18 a17 a16 a15 a14 a13 a12 a11 a10 a9 a8 a7 a6 a5 a4
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 1 0? W FEP-HSB-DATA
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 1 0 0? W FEP-HSB-POINTER
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0? W P-PORT
Now for stuff the 3670 nfep code actually accesses:
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 1 W ? 0x02 gets written here
| | | | | | hex
| | | | | | | | octal
@310: write