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Symbolics 3670: add a lot more notes about the FEP/NFEP board PALs and PROMs noting where the equations for various PALs/PROMs are in the patent [Lord Nightmare]

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Lord-Nightmare 2016-03-24 08:13:44 -04:00
parent 3bd130ebce
commit c4a0a46e5c
1 changed files with 22 additions and 20 deletions
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42
src/mame/drivers/symbolics.cpp
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@ -175,6 +175,8 @@ Soft reset
[:maincpu] ':maincpu' (006B60): unmapped program memory write to FFFFFE = FFFF & FFFF "
[:maincpu] ':maincpu' (00A2AA): unmapped program memory read from FF00B0 & FF00
currently dies at context switch code loaded to ram around 38EE0, see patent 4887235 pages 441/442
*/
static ADDRESS_MAP_START(m68k_mem, AS_PROGRAM, 16, symbolics_state )
@ -276,31 +278,31 @@ ROM_START( s3670 )
/*
LBBUFA.4 mb7124 @A6
LBBUFB.4 mb7124 @A7
LBBUFC.4 mb7124 @A9
LBAAR.4 @A12
LBPAR.4A @A13
PROCA.4 pal16R8A @A25
HSADR.4 pal1???? @C4
DYNMEM.5 pal16R8A @C20
PCDYNCTL @C21
REQSEL.4A @C22
DY2ACK pal16L8A @C23
PROC.4 pal? @C25
UDMAHA.4 pal? @D3
LBBUFC.4 mb7124 @A9 <- 4887235 page 630 has LBBUFC.UCODE rev27
LBAAR.4 @A12 <- 4887235 page 625 has LBAAR rev4, pal16l8
LBPAR.4A @A13 <- 4887235 page 624 has LBPAR rev9, pal16l8
PROCA.4 pal16R8A @A25 <- 4887235 page 621 has PROCA rev8, pal16r8
HSADR.4 pal1???? @C4 <- 4887235 page 626 has LBPAR rev9, pal16r4
DYNMEM.5 pal16R8A @C20 <- 4887235 page 627 has DYNMEM rev15, pal16r8
PCDYNCTL @C21 <- 4887235 page 628 has DYNCTL rev7, pal16l8
REQSEL.4A @C22 <- 4887235 page 620 has REQSEL rev28, pal16l8
DV2ACK pal16L8A @C23 <- 4887235 page 629 has DEVACK rev?, pal16l8 <- controls fep mem map; this is DIFFERENT between FEP v24 (DEVACK) and NFEP v127 (DV2ACK)
PROC.4 pal? @C25 <- 4887235 page 622 has PROC rev4, pal16l8
UDMAHA.4 pal? @D3 <- 4887235 page 619 has UDMAHA rev2, pal16l8
FEP 4642 16pprom? @D5 <- this is the serial number of the FEP board stored in a prom, readable at one of the local-io addresses
HRSQ.4 pal @D6
HSRQ.4 pal @D6 <- 4887235 page 626 has HSRQ rev?, pal16l8
d7, d8, d10 are eproms, see above
d11 is empty socket marked 2764
d13, d14, d16 are eproms, see above
d17 is empty socket marked 2764
?DVZNUR? @E21 <- unreadable label, recheck!
LDBD.4 pal16L8A @G18
PAGTAG.5 @H20
UDMABC.4 pal @I4
SERDMA.4 @I8
SERIAB.4 @I9
LBARB.4 @I18
SERCTL.4 @K6
DV2NUM @E21 <- 4887235 page 629 has DEVNUM rev8, pal16l8 <- controls fep mem map; this is DIFFERENT between FEP v24 (DEVNUM) and NFEP v127 (DV2NUM)
LBBD.4 pal16L8A @G18 <- 4887235 page 624 has LBBD rev6, pal16l8
PAGTAG.5 @H20 <- 4887235 page 623 has PAGTAG rev5, pal16l8
UDMABC.4 pal @I4 <- 4887235 page 619 has UDMABC rev3, pal16l8
SERDMA.4 @I8 <- 4887235 page 620 has SERDMA rev8, pal16l8
SERIAB.4 @I9 <- 4887235 page 620 has SERIAB rev2, pal16l8
LBARB.4 @I18 <- 4887235 page 625 has LBARB rev1, pal16l8
SERCTL.4 @K6 <- 4887235 page 620 has SERCTL rev4, pal16l8
*/
ROM_REGION16_BE( 0x20000, "fepdram", ROMREGION_ERASEFF )
ROM_END