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(explain bad rom)

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This commit is contained in:
Michaël Banaan Ananas 2012-05-11 19:31:52 +00:00
parent 896a5793b0
commit cdd3c2de30
1 changed files with 7 additions and 1 deletions
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src/mame/drivers/40love.c
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@ -31,6 +31,12 @@ Game serial/model number : M4300006B ?
I dont have the wiring harness for this board, so dont know if it works.
One GFX ROM is bad though.
See A30-26.u23\A30-26.txt for details about the bad ROM.
To summarise:
Dumps from GFX ROM A30-26.u23 were inconsistent. Reads with checksums
41A3 and 415F occured a couple of times, and the difference is one byte
at offset $0004 (data $CC or $88). Maybe one of these reads is correct
or closest to the real ROM. We are using the one with checksum 415F,
the other one makes one sprite looks worse.
This is a four board system - Main, Video, ROM, and Sound boards.
@ -1196,7 +1202,7 @@ ROM_START( 40love )
ROM_REGION( 0x8000, "gfx1", 0 )
ROM_LOAD( "a30-25.u22", 0x0000, 0x2000, CRC(15e594cf) SHA1(d2d506a55f6ac2c191e5d5b3127021cde366c71c) )
ROM_LOAD( "415f.26", 0x2000, 0x2000, BAD_DUMP CRC(3a45a205) SHA1(0939ecaabbb9be2a0719ef252e3f244299734ba6) ) /* this actually seems good, but we need to find another one to verify */
ROM_LOAD( "a30-26.u23", 0x2000, 0x2000, BAD_DUMP CRC(3a45a205) SHA1(0939ecaabbb9be2a0719ef252e3f244299734ba6) ) /* this actually seems good, but we need to find another one to verify */
ROM_LOAD( "a30-27.u24", 0x4000, 0x2000, CRC(57c67f6f) SHA1(293e5bfa7c859886abd70f78fe2e4b13a3fce3f5) )
ROM_LOAD( "a30-28.u25", 0x6000, 0x2000, CRC(d581d067) SHA1(ce132cf2503917f0846b838c6ce4ad4183181bf9) )