summaryrefslogtreecommitdiffstatshomepage
diff options
context:
space:
mode:
author R. Belmont <rb6502@users.noreply.github.com>2009-10-22 05:01:14 +0000
committer R. Belmont <rb6502@users.noreply.github.com>2009-10-22 05:01:14 +0000
commit86ddc0cdc7887c0a1de733646794983df11d0d4c (patch)
tree75bf02cc8e9fca8e8f2cfeb5fda8ec2d81071c63
parent20765c0fe24ddb521dc877523fcf5965c27555c1 (diff)
naomi: added 18 Wheeler JVS I/O and motor controller dumps [Gerald (COY)]
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?)
-rw-r--r--src/mame/drivers/naomi.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mame/drivers/naomi.c b/src/mame/drivers/naomi.c
index c6a4e0c2c66..6c4feded4b2 100644
--- a/src/mame/drivers/naomi.c
+++ b/src/mame/drivers/naomi.c
@@ -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