From b3e581c8f958c43a39055ac5c50d630180a9b785 Mon Sep 17 00:00:00 2001 From: Brian Troha Date: Sun, 11 Apr 2021 15:13:19 -0500 Subject: midyunit.cpp: Add documentation about the known NARC sound program ROMs and sound data. --- src/mame/drivers/midyunit.cpp | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/src/mame/drivers/midyunit.cpp b/src/mame/drivers/midyunit.cpp index 4d244e28a3b..80eab046589 100644 --- a/src/mame/drivers/midyunit.cpp +++ b/src/mame/drivers/midyunit.cpp @@ -98,6 +98,16 @@ Revision history for NARC: No Mr. Big kills Players not able to find blue card in drug lab witnessed +NARC sound program and data ROMs: + +The REV1 ROMs have no known build date or revision code. +The REV2 ROMs have a Version 1.1 1/16/89 string in the U5 ROM starting at 0xC04C, which + coincides with the above released date of the 2.00 ROMs for the first production release. +In the source code archive that was released, there are sound ROMs with a Version 1.0 1/12/89 + string. It's not known which if any set these should be matched to. Maybe the missing v1.91? + +For each sound ROM set, both program ROMs as well as the 4 data ROMs are unique to that build. + ************************************************************************* TROG development based on notes in source code & dumped sets: -- cgit v1.2.3