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naomi: added 18 Wheeler JVS I/O and motor controller dumps [Gerald (COY)]

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Both boards' code disassembles as Z80 even though the JVS board has no visible
CPU (must be inside the Sega ASIC).  Interestingly this is a slightly different
model JVS I/O board from what Guru documented previously, and the EPR number
is also different.  (Is the EPR-22082 listed by Guru dumped?)
This commit is contained in:
R. Belmont 2009-10-22 05:01:14 +00:00
parent 20765c0fe2
commit 86ddc0cdc7
1 changed files with 9 additions and 0 deletions
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9
src/mame/drivers/naomi.c
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@ -470,6 +470,7 @@ Notes: (most info taken from poor quality pics/scans, better info is needed)
IC6 - Sega 315-6146 custom IC (QFP176)
IC7 - 27C512 EPROM with label 'EPR-22082' (DIP28)
On plain 837-13844 (no -02) this is 'EPR-21868' (DIP28)
IC8 - Sharp LH52256 32k x8 SRAM (SOP28)
IC10 - Something by NEC? (QFP44)
OSC1 - 14.7456MHz
@ -3405,6 +3406,14 @@ ROM_START( 18wheelr )
ROM_REGION( 0x200000, "naomibd_prot", ROMREGION_ERASE00 )
ROM_LOAD( "00800000.bin", 0x000000, 0x002000, CRC(7fc42084) SHA1(7c7b9e7e0b8885e690f3edd25e6d26201c899f2f) )
// JVS I/O board 837-13844, code is for a Z80 of unknown type (it's inside the big Sega ASIC)
ROM_REGION( 0x10000, "jvsio", ROMREGION_ERASEFF)
ROM_LOAD( "epr-21868.ic7", 0x000000, 0x010000, CRC(c306a51f) SHA1(7833b73dc34c4c62401a30637968f46b949ceac0) )
// 18 Wheeler motor controller 838-13992, code is for a TMPZ84C015 which is Z80 compatible
ROM_REGION( 0x10000, "motorio", ROMREGION_ERASEFF)
ROM_LOAD( "epr-23000.ic8", 0x000000, 0x010000, CRC(e3b162f7) SHA1(52c7ad759c3c4a3148764e14d77ba5006bc8af48) )
ROM_END