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author MetalliC <0vetal0@gmail.com>2016-12-08 00:20:13 +0200
committer GitHub <noreply@github.com>2016-12-08 00:20:13 +0200
commit3408ed0ae5525882f35e0f796e6d6c17e12fe849 (patch)
treed005e077ca37a3f97f3559b1e1de24ac6df4dfb6
parent02ba08bd2d7b59b3b1740265f1f13b8688e93f1c (diff)
parente97de5880db49f966f18533cb54963037e10aae4 (diff)
Merge pull request #1806 from mamehaze/071216
add dump of i8751 '317-0112' at location c2 to 'goldnaxe2' set. chip…
-rw-r--r--src/mame/drivers/segas16b.cpp10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/mame/drivers/segas16b.cpp b/src/mame/drivers/segas16b.cpp
index afa20a7541a..ff1c4b66d4d 100644
--- a/src/mame/drivers/segas16b.cpp
+++ b/src/mame/drivers/segas16b.cpp
@@ -6452,7 +6452,15 @@ ROM_START( goldnaxe2 )
ROM_LOAD( "mpr-12384.a11", 0x10000, 0x20000, CRC(6218d8e7) SHA1(5a745c750efb4a61716f99befb7ed14cc84e9973) )
ROM_REGION( 0x1000, "mcu", 0 ) // Intel i8751 protection MCU
- ROM_LOAD( "317-0112.c2", 0x00000, 0x1000, NO_DUMP )
+ /* NOT CURRENTLY USED
+
+ this chip was faulty, the internal checksum routine fails. actual code looks like it should be 99.99% the
+ same as the 'goldnaxe' set but unused areas have different garbage fill data, so finding the bad bits is
+ difficult.
+
+ Calculated checksum: 5F8F
+ File checksum: 5E8F */
+ ROM_LOAD( "317-0112.c2", 0x00000, 0x1000, BAD_DUMP CRC(d8f2f1c0) SHA1(04594ed5558af63cde62de6cc4020b35b8a5889e) )
ROM_END
//*************************************************************************************************************************