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author braintro <briantro@users.noreply.github.com>2020-08-02 01:14:59 -0500
committer braintro <briantro@users.noreply.github.com>2020-08-02 01:14:59 -0500
commit116caaef7cd0d4b65b3bacd747b45f1662e43694 (patch)
tree6f7fa7a0150d98dd0be888b5d81fd6db91519e0c
parente7697364dded3511a0f0e478db4816ea5951f19b (diff)
midvunit.cpp: Document Cruis'n World mask ROM format.
-rw-r--r--src/mame/drivers/midvunit.cpp13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/mame/drivers/midvunit.cpp b/src/mame/drivers/midvunit.cpp
index 34234fbd365..5db2802f8e7 100644
--- a/src/mame/drivers/midvunit.cpp
+++ b/src/mame/drivers/midvunit.cpp
@@ -1450,6 +1450,19 @@ ROM_START( crusnusa21 ) /* Version 2.1, Wed Nov 09 1994 - 16:28:10 */
ROM_END
+/*
+Some Cruis'n World PCBs have mask ROMs for the data ROMs
+
+Mask ROMs are in the following format:
+-------------------------------- --------------------------------
+| MIDWAY GAMES INC | | MIDWAY GAMES INC |
+| CRUISN WORLD | | CRUISN WORLD |
+) 5341-15282-01 | ) 5341-15287-01 |
+| U3 SOUND | | U14 VIDEO IMAGE |
+| (C)1996 MIDWAY GAMES | | (C)1996 MIDWAY GAMES |
+-------------------------------- --------------------------------
+
+*/
ROM_START( crusnwld ) /* Version 2.5, Wed Nov 04 1998 - 15:50:52 */
ROM_REGION16_LE( 0x1000000, "dcs", ROMREGION_ERASEFF ) /* sound data */
ROM_LOAD16_BYTE( "1.0_cruisn_world_u2_sound.u2", 0x000000, 0x80000, CRC(7a233c89) SHA1(ecfad4bc48a69cd3399e3b3266c81574082e0169) )