ROM_START( defender ) ROM_REGION( 0x19000, "maincpu", 0 ) ROM_LOAD( "defend.1", 0x0d000, 0x0800, CRC(c3e52d7e) SHA1(a57f5278ffe44248fc73f9925d107f4024ad981a) ) ROM_LOAD( "defend.4", 0x0d800, 0x0800, CRC(9a72348b) SHA1(ed6ce796702ff32209ced3cb1ba3837dbafa526f) ) ROM_LOAD( "defend.2", 0x0e000, 0x1000, CRC(89b75984) SHA1(a9481478da38f99efb67f0ecf82d084e14b93b42) ) ROM_LOAD( "defend.3", 0x0f000, 0x1000, CRC(94f51e9b) SHA1(a24cfc55de56a72758c76fe2a55f1ec6c353b16f) ) ROM_LOAD( "defend.9", 0x10000, 0x0800, CRC(6870e8a5) SHA1(67ccc194b1753a18af0c85f5e603355549c4f727) ) ROM_LOAD( "defend.12", 0x10800, 0x0800, CRC(f1f88938) SHA1(26e48dfeefa0766837b1e762695b9532dbc8bc5e) ) ROM_LOAD( "defend.8", 0x11000, 0x0800, CRC(b649e306) SHA1(9d7bc3c89e5a53c575946f06702c722b864b1ff0) ) ROM_LOAD( "defend.11", 0x11800, 0x0800, CRC(9deaf6d9) SHA1(59b018ba0f3fe6eadfd387dc180ac281460358bc) ) ROM_LOAD( "defend.7", 0x12000, 0x0800, CRC(339e092e) SHA1(2f89951dbe55d80df43df8dcf497171f73e726d3) ) ROM_LOAD( "defend.10", 0x12800, 0x0800, CRC(a543b167) SHA1(9292b94b0d74e57e03aada4852ad1997c34122ff) ) ROM_LOAD( "defend.6", 0x16000, 0x0800, CRC(65f4efd1) SHA1(a960fd1559ed74b81deba434391e49fc6ec389ca) ) ROM_REGION( 0x10000, "soundcpu", 0 ) ROM_LOAD( "defend.snd", 0xf800, 0x0800, CRC(fefd5b48) SHA1(ceb0d18483f0691978c604db94417e6941ad7ff2) ) ROM_REGION( 0x0400, "proms", 0 ) ROM_LOAD( "decoder.2", 0x0000, 0x0200, CRC(8dd98da5) SHA1(da979604f7a2aa8b5a6d4a5debd2e80f77569e35) ) ROM_LOAD( "decoder.3", 0x0200, 0x0200, CRC(c3f45f70) SHA1(d19036cbc46b130548873597b44b8b70758f25c4) ) ROM_END defend.snd - sound CPU (0xF800) defend.1 - D000-D7FF defend.4 - D800-DFFF defend.2 - E000-EFFF defend.3 - F000-FFFF defend.9 - C000-C7FF (Bank 1) defend.12 - C800-CFFF (Bank 1) defend.8 - C000-C7FF (Bank 2) defend.11 - C800-CFFF (Bank 2) defend.7 - C000-C7FF (Bank 3) defend.10 - C7FF-CFFF (Bank 3) defend.6 - C000-C7FF (Bank 7)