ROM_START( kof10th )
ROM_REGION( 0x900000, REGION_CPU1, 0 ) // Modified
ROM_LOAD16_WORD_SWAP( "kf10-p1.bin", 0x000000, 0x800000, CRC(b1fd0c43) SHA1(5f842a8a27be2d957fd4140d6431ae47154997bb) )
ROM_REGION( 0x20000, REGION_GFX1, 0 ) // modified
ROM_FILL( 0x000000, 0x20000, 0 ) // modified
ROM_REGION( 0x20000, REGION_GFX2, 0 )
ROM_LOAD( "sfix.sfx", 0x000000, 0x20000, CRC(354029fc) SHA1(4ae4bf23b4c2acff875775d4cbff5583893ce2a1) )
into this.
ROM_START( kof10th )
ROM_REGION( 0x900000, REGION_CPU1, 0 ) // Modified
ROM_LOAD16_WORD_SWAP( "kf10-p1.bin", 0x000000, 0x800000, CRC(b1fd0c43) SHA1(5f842a8a27be2d957fd4140d6431ae47154997bb) )
ROM_REGION( 0x20000, REGION_GFX1, 0 ) // modified
ROM_FILL( 0x000000, 0x20000, 0 ) // modified
ROM_REGION( 0x20000, REGION_GFX2, 0 )
ROM_LOAD( "sfix.sfx", 0x000000, 0x20000, CRC(354029fc) SHA1(4ae4bf23b4c2acff875775d4cbff5583893ce2a1) )
NEO_BIOS_SOUND_128K( "5008-m1.bin", CRC(5a47d9ad) SHA1(0197737934653acc6c97221660d789e9914f3578) )
ROM_REGION( 0x1000000, REGION_SOUND1, ROMREGION_SOUNDONLY )
ROM_LOAD( "265-v1d.bin", 0x000000, 0x800000, CRC(0fc9a58d) SHA1(9d79ef00e2c2abd9f29af5521c2fbe5798bf336f) )
ROM_LOAD( "265-v2d.bin", 0x800000, 0x800000, CRC(b8c475a4) SHA1(10caf9c69927a223445d2c4b147864c02ce520a8) )
NO_DELTAT_REGION
ROM_REGION( 0x4000000, REGION_GFX3, 0 )
ROM_LOAD16_BYTE( "275-c1a.bin", 0x0000000, 0x400000, CRC(3bbc0364) SHA1(e8aa7ff82f151ce1db56f259377b64cceef85af0) ) /* Plane 0,1 */
ROM_LOAD16_BYTE( "275-c2a.bin", 0x0000001, 0x400000, CRC(91230075) SHA1(d9098e05a7ba6008661147b6bf8bc2f494b8b72b) ) /* Plane 2,3 */
ROM_LOAD16_BYTE( "275-c1b.bin", 0x0800000, 0x400000, CRC(b5abfc28) SHA1(eabf60992bb3485c95330065294071ec155bfe7c) ) /* Plane 0,1 */
ROM_LOAD16_BYTE( "275-c2b.bin", 0x0800001, 0x400000, CRC(6cc4c6e1) SHA1(be824a944e745ee18efdc45c81fd496a4d624b9c) ) /* Plane 2,3 */
ROM_LOAD16_BYTE( "275-c3a.bin", 0x1000000, 0x400000, CRC(5b3d4a16) SHA1(93ac1cd7739100f8c32732644f81f2a19837b131) ) /* Plane 0,1 */
ROM_LOAD16_BYTE( "275-c4a.bin", 0x1000001, 0x400000, CRC(c6f3419b) SHA1(340c17a73aeb7bf8a6209f8459e6f00000075b50) ) /* Plane 2,3 */
ROM_LOAD16_BYTE( "275-c3b.bin", 0x1800000, 0x400000, CRC(9d2bba19) SHA1(5ebbd0af3f83a60e33c8ccb743e3d5f5a96f1273) ) /* Plane 0,1 */
ROM_LOAD16_BYTE( "275-c4b.bin", 0x1800001, 0x400000, CRC(5a4050cb) SHA1(8fd2291f349efa1ed5cd37ad4e273b60fe831a77) ) /* Plane 2,3 */
ROM_LOAD16_BYTE( "275-c5a.bin", 0x2000000, 0x400000, CRC(a289d1e1) SHA1(50c7d7ebde6e118a01036cc3e40827fcd9f0d3fd) ) /* Plane 0,1 */
ROM_LOAD16_BYTE( "275-c6a.bin", 0x2000001, 0x400000, CRC(e6494b5d) SHA1(18e064b9867ae0b0794065f8dbefd486620419db) ) /* Plane 2,3 */
ROM_LOAD16_BYTE( "275-c5b.bin", 0x2800000, 0x400000, CRC(404fff02) SHA1(56d1b32c87ea4885e49264e8b21846e465a20e1f) ) /* Plane 0,1 */
ROM_LOAD16_BYTE( "275-c6b.bin", 0x2800001, 0x400000, CRC(f2ccfc9e) SHA1(69db7fac7023785ab94ea711a72dbc2826cfe1a3) ) /* Plane 2,3 */
ROM_LOAD16_BYTE( "275-c7a.bin", 0x3000000, 0x400000, CRC(be79c5a8) SHA1(ded3c5eb3571647f50533eb682c2675372ace3fb) ) /* Plane 0,1 */
ROM_LOAD16_BYTE( "275-c8a.bin", 0x3000001, 0x400000, CRC(a5952ca4) SHA1(76dbb3cb45ce5a4beffa1ed29491204fc6617e42) ) /* Plane 2,3 */
ROM_LOAD16_BYTE( "275-c7b.bin", 0x3800000, 0x400000, CRC(3fdb3542) SHA1(7d2050752a2064cd6729f483a0da93808e2c6033) ) /* Plane 0,1 */
ROM_LOAD16_BYTE( "275-c8b.bin", 0x3800001, 0x400000, CRC(661b7a52) SHA1(0ae2ad2389134892f156337332b77adade3ddad1) ) /* Plane 2,3 */
ROM_END
I didn't know that is the way it need to be. How did you do that anyway?