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r24643 Friday 2nd August, 2013 at 04:32:00 UTC by David Haywood
manually fix table a bit, improve note (nw)
[src/mame/machine]pgmprot_igs027a_type1.c

trunk/src/mame/machine/pgmprot_igs027a_type1.c
r24642r24643
646646         it is clear the low bits of our xor table are wrong, and obvious why, it's based on the data, and a value of 0 is very rare
647647         because the data doesn't need to store blank space! the upper bits are more trusted because they're so rarely used
648648
649         
650         001387de: 31 000e | value 0e, after xor is 76  << UNKNOWN  (related to number of columns?)
651         ---- Column 1
652         001387de: 31 0098 | value 98, after xor is 40 << 4 = number of fish in ths column
653         001387de: 31 00a8 | value a8, after xor is 0e
649     
650         00138278: 31 00fd | (set xor table offset)
651     
652      UNKNOWN - related to depth / number of columns?
653         00138278: 31 0087 | value 87, after xor is 75 (table address,value fd,f2)
654      COLUMN 1
655         00138278: 31 0032 | value 32, after xor is 40 (table address,value fe,72) << 4 is the number of entries in this column
656         00138278: 31 0029 | value 29, after xor is 0f (table address,value ff,26) << 0x0f is a mask of 4 bits..
654657
655         001387de: 31 007c | value 7c, after xor is 02 | 4 entries here (builds 0x0103, 0x0101, 0x0102, 0x0102, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 )
656         001387de: 31 0043 | value 43, after xor is 01
657         001387de: 31 00e4 | value e4, after xor is 00
658         001387de: 31 00a2 | value a2, after xor is 00
659         ---- Column 2
660         001387de: 31 006a | value 6a, after xor is 41 << 4 = number of fish in ths column
661         001387de: 31 00e0 | value e0, after xor is 0f
658         00138278: 31 0031 | value 31, after xor is 03 (table address,value 00,32)  -> 0x0103
659         00138278: 31 003f | value 3f, after xor is 01 (table address,value 01,3e)  -> 0x0101
660         00138278: 31 00b0 | value b0, after xor is 02 (table address,value 02,b2)  -> 0x0102
661         00138278: 31 0035 | value 35, after xor is 02 (table address,value 03,37)  -> 0x0102
662        COLUMN 2
663         00138278: 31 0071 | value 71, after xor is 40 (table address,value 04,31) << 4 is the number of entries in this column
664         00138278: 31 002d | value 2d, after xor is 0f (table address,value 05,22) << 0x0f is a mask of 4 bits..
662665
663         001387de: 31 00ed | value ed, after xor is 00 | 4 entries here (builds 0x0103, 0x0100, 0x0101, 0x0105, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 )
664         001387de: 31 0024 | value 24, after xor is 00
665         001387de: 31 00bb | value bb, after xor is 01
666         001387de: 31 00bd | value bd, after xor is 05
667         ---- Column 3
668         001387de: 31 002e | value 2e, after xor is 50 << 5 = number of fish in ths column
669         001387de: 31 00d6 | value d6, after xor is 1f
666         00138278: 31 00d5 | value d5, after xor is 03 (table address,value 06,d6)  -> 0x0103
667         00138278: 31 000d | value 0d, after xor is 00 (table address,value 07,0d)  -> 0x0100
668         00138278: 31 0034 | value 34, after xor is 01 (table address,value 08,35)  -> 0x0101
669         00138278: 31 0059 | value 59, after xor is 05 (table address,value 09,5c)  -> 0x0105
670      COLUMN 3
671         00138278: 31 00dd | value dd, after xor is 50 (table address,value 0a,8d) << 5 is the number of entries in this column
672         00138278: 31 0023 | value 23, after xor is 1f (table address,value 0b,3c) << 0x1f is a mask of 5 bits..
673         
674         00138278: 31 007a | value 7a, after xor is 00 (table address,value 0c,7a)  -> 0x0100
675         00138278: 31 00f3 | value f3, after xor is 01 (table address,value fd,f2)  -> 0x0101
676         00138278: 31 0077 | value 77, after xor is 05 (table address,value fe,72)  -> 0x0105
677         00138278: 31 0022 | value 22, after xor is 04 (table address,value ff,26)  -> 0x0104
678         00138278: 31 0036 | value 36, after xor is 04 (table address,value 00,32)  -> 0x0104     
679      COLUMN 4
680         00138278: 31 002e | value 2e, after xor is 10 (table address,value 01,3e) << 1 is the number of entries in this column
681         00138278: 31 00b3 | value b3, after xor is 01 (table address,value 02,b2) << 0x01 is a mask of 1 bit..
670682
671         001387de: 31 002b | value 2b, after xor is 00 | 5 entries here (builds 0x0100, 0x0101, 0x0105, 0x0104, 0x0104, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 )
672         001387de: 31 007a | value 7a, after xor is 02
673         001387de: 31 00dd | value dd, after xor is 05
674         001387de: 31 00a3 | value a3, after xor is 05
675         001387de: 31 007b | value 7b, after xor is 05
676         ---- Column 4
677         001387de: 31 0052 | value 52, after xor is 10 << 1 = number of fish in ths column
678         001387de: 31 00e7 | value e7, after xor is 03
679
680         001387de: 31 00a2 | value a2, after xor is 00 | 1 entry here ( builds 0x0102, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 )
681         ---- Column 5
682         001387de: 31 005a | value 5a, after xor is 71 << 7 = number of fish in this column
683         001387de: 31 0090 | value 90, after xor is 7f
683         00138278: 31 0035 | value 35, after xor is 02 (table address,value 03,37)  -> 0x0102
684      COLUMN 5
685         00138278: 31 0041 | value 41, after xor is 70 (table address,value 04,31) << 7 is the number of entries in this column
686         00138278: 31 005d | value 5d, after xor is 7f (table address,value 05,22) << 0x7f is a mask of 7 bits..
684687         
685         001387de: 31 00ee | value ee, after xor is 03 | 7 entries here (builds 0x0100, 0x0101, 0x0103, 0x0102, 0x0104, 0x0100 ,0x0100, 0x0000, 0x0000, 0x0000 )
686         001387de: 31 0025 | value 25, after xor is 01
687         001387de: 31 00b9 | value b9, after xor is 03
688         001387de: 31 00ba | value ba, after xor is 02
689         001387de: 31 007a | value 7a, after xor is 04
690         001387de: 31 00c9 | value c9, after xor is 00
691         001387de: 31 002b | value 2b, after xor is 00
692         ---- Column 6
693         001387de: 31 002b | value 2b, after xor is 53 << 5 = number of fish in this column
694         001387de: 31 00c7 | value c7, after xor is 1f
688         00138278: 31 00d6 | value d6, after xor is 00 (table address,value 06,d6)  -> 0x0100
689         00138278: 31 000c | value 0c, after xor is 01 (table address,value 07,0d)  -> 0x0101
690         00138278: 31 0036 | value 36, after xor is 03 (table address,value 08,35)  -> 0x0103
691         00138278: 31 005e | value 5e, after xor is 02 (table address,value 09,5c)  -> 0x0102
692         00138278: 31 0089 | value 89, after xor is 04 (table address,value 0a,8d)  -> 0x0104
693         00138278: 31 003c | value 3c, after xor is 00 (table address,value 0b,3c)  -> 0x0100
694         00138278: 31 007a | value 7a, after xor is 00 (table address,value 0c,7a)  -> 0x0100
695      COLUMN 6
696         00138278: 31 00a2 | value a2, after xor is 50 (table address,value fd,f2) << 5 is the number of entries in this column
697         00138278: 31 006d | value 6d, after xor is 1f (table address,value fe,72) << 0x1f is a mask of 5 bits..
698         
699         00138278: 31 0023 | value 23, after xor is 05 (table address,value ff,26)  -> 0x0105
700         00138278: 31 0037 | value 37, after xor is 05 (table address,value 00,32)  -> 0x0105
701         00138278: 31 003f | value 3f, after xor is 01 (table address,value 01,3e)  -> 0x0101
702         00138278: 31 00b3 | value b3, after xor is 01 (table address,value 02,b2)  -> 0x0101
703         00138278: 31 0034 | value 34, after xor is 03 (table address,value 03,37)  -> 0x0103
704          ^ (end, returning 630006 as playfield width)
695705
696         001387de: 31 00a2 | value a2, after xor is 04 | 5 entries here (builds 0x0105, 0x0105, 0x0101, 0x0101, 0x0103, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 )
697         001387de: 31 007a | value 7a, after xor is 04
698         001387de: 31 0043 | value 43, after xor is 01
699         001387de: 31 00e7 | value e7, after xor is 03
700         001387de: 31 00a3 | value a3, after xor is 01 (end, returning 630006 as playfield width)
701706
702
703                   
707               
704708           
705           
706709         
707           
708         
709710
710711         */
711712
712713         // these table aren't accurate yet, generated with analysis of data sent, we never
713714         // see the direct results of this operation (happens inside the MCU)
714         /*
715         UINT8 puzzli2_level_decode[256] = {
716
717         0x31, 0x3e, 0xb2, 0x35, 0x31, 0x22, 0xd7, 0x0d, 0x35, 0x5c, 0x8d, 0x3c, 0x79, 0x5f, 0xd4, 0xad,
718         0x53, 0xff, 0xeb, 0x45, 0xec, 0x11, 0x68, 0x77, 0xd8, 0x34, 0x36, 0x45, 0xa6, 0xea, 0x1c, 0xc6,
719         0x3b, 0xbd, 0xad, 0x2e, 0x18, 0xde, 0xa0, 0xa8, 0xdd, 0x52, 0x57, 0xc2, 0xe5, 0x0b, 0x00, 0x6d,
720         0x67, 0x64, 0x14, 0x70, 0xb6, 0x39, 0x25, 0x79, 0x82, 0xd2, 0x70, 0xb9, 0x13, 0xf5, 0x92, 0x93,
721         0xfa, 0xe5, 0x5e, 0xb0, 0xf6, 0xaf, 0x95, 0x8b, 0x7d, 0x73, 0xf9, 0x63, 0x86, 0xcb, 0x1a, 0x56,
722         0xf1, 0x3a, 0xae, 0x62, 0x01, 0x29, 0x90, 0x22, 0x8f, 0x5c, 0x9a, 0x65, 0x74, 0x21, 0x20, 0x40,
723         0xd3, 0x05, 0xa2, 0xe2, 0xbc, 0x9e, 0x1e, 0x10, 0x15, 0x0c, 0x8a, 0x9c, 0xec, 0x38, 0xb6, 0x9d,
724         0x2a, 0xf5, 0x14, 0x0e, 0x85, 0xc7, 0x7d, 0xce, 0x94, 0x16, 0x48, 0xa8, 0x81, 0x6e, 0x7a, 0xd8,
725         0xa6, 0x7f, 0x42, 0xe4, 0xa0, 0x2a, 0xef, 0xed, 0x24, 0xba, 0xb8, 0x7c, 0xcb, 0x2b, 0x90, 0xcc,
726         0x59, 0xd1, 0xf3, 0xe2, 0x6f, 0xed, 0x9f, 0xf0, 0x4a, 0x54, 0x8d, 0x08, 0xf8, 0x51, 0x68, 0xc8,
727         0x03, 0x0b, 0xbb, 0xc0, 0xe3, 0x4c, 0x05, 0xc5, 0x8c, 0x09, 0x0e, 0xbf, 0x62, 0x48, 0x75, 0x59,
728         0x1d, 0x80, 0xdf, 0x60, 0x07, 0xe0, 0x1a, 0x67, 0xa5, 0xbf, 0xcd, 0x86, 0xdc, 0xc3, 0x6a, 0x4e,
729         0xd0, 0xfc, 0xd5, 0x3f, 0x98, 0x96, 0x2f, 0x4c, 0xb3, 0xea, 0x2d, 0x75, 0xe4, 0xc0, 0x6c, 0x69,
730         0x9b, 0xb7, 0x41, 0x8b, 0x41, 0x47, 0x02, 0xda, 0x99, 0x3d, 0xa3, 0x79, 0x10, 0x4f, 0xb4, 0x55,
731         0x5a, 0x25, 0xf4, 0xca, 0x58, 0x30, 0xc4, 0x12, 0xa9, 0x45, 0xda, 0x91, 0xa4, 0xaa, 0xfc, 0x84,
732         0xf8, 0x88, 0x06, 0xcf, 0xfe, 0x33, 0xd5, 0x28, 0x1c, 0x19, 0x4a, 0xb1, 0x83, 0xf3, 0x72, 0x26,
733715         
734         };
735         */
736         /* alt table created with other data set, some bits differ, verify bits */
716     
737717         UINT8 puzzli2_level_decode[256] = {
738         0x31, 0x3e, 0xb2, 0x35, 0x31, 0x22, 0xd6, 0x0d, 0x37, 0x5c, 0x8d, 0x3c, 0x79, 0x5f, 0xd4, 0xad,
718         0x32, 0x3e, 0xb2, 0x37, 0x31, 0x22, 0xd6, 0x0d, 0x35, 0x5c, 0x8d, 0x3c, 0x7a, 0x5f, 0xd4, 0xad,
739719         0x53, 0xff, 0xe9, 0x45, 0xed, 0x11, 0x68, 0x77, 0xd8, 0x34, 0x36, 0x45, 0xa6, 0xeb, 0x1c, 0xc7,
740720         0x3b, 0xbd, 0xad, 0x2f, 0x18, 0xde, 0xa1, 0xaa, 0xdd, 0x50, 0x57, 0xc2, 0xe5, 0x0a, 0x01, 0x6d,
741721         0x67, 0x65, 0x14, 0x70, 0xb7, 0x39, 0x24, 0x79, 0x83, 0xd2, 0x71, 0xb9, 0x10, 0xf5, 0x92, 0x93,
r24642r24643
750730         0xd0, 0xfc, 0xd5, 0x3f, 0x98, 0x96, 0x2e, 0x4c, 0xb3, 0xea, 0x2d, 0x75, 0xe6, 0xc0, 0x6c, 0x69,
751731         0x9b, 0xb7, 0x43, 0x8b, 0x41, 0x47, 0x02, 0xda, 0x98, 0x3d, 0xa3, 0x79, 0x10, 0x4f, 0xb4, 0x55,
752732         0x5a, 0x25, 0xf4, 0xc8, 0x58, 0x30, 0xc4, 0x12, 0xa9, 0x45, 0xda, 0x91, 0xa4, 0xaa, 0xfc, 0x84,
753         0xfa, 0x88, 0x06, 0xce, 0xfe, 0x32, 0xd5, 0x28, 0x1d, 0x19, 0x4b, 0xb1, 0x83, 0xf3, 0x72, 0x27,
733         0xfa, 0x88, 0x06, 0xce, 0xfe, 0x32, 0xd5, 0x28, 0x1d, 0x19, 0x4b, 0xb1, 0x83, 0xf2, 0x72, 0x26,
754734         };
755735     
756736         printf("%08x: %02x %04x | ",pc, m_ddp3lastcommand, m_value0);
r24642r24643
772752            // always d2 0000 when writing doing level data
773753            // but different for the writes on startup?
774754            m_valueresponse = 0x00d20000;
775            UINT8 xoredval = m_value0 ^ puzzli2_level_decode[(hack_31_table_offset + (hack_31_table_offset2&0xf))&0xff];
776            printf("value %02x, after xor is %02x\n", m_value0, xoredval);
755
756            UINT8 tableaddr = (hack_31_table_offset + (hack_31_table_offset2&0xf))&0xff;
757            UINT8 xoredval = m_value0 ^ puzzli2_level_decode[tableaddr];
758            printf("value %02x, after xor is %02x (table address,value %02x,%02x)\n", m_value0, xoredval, tableaddr, puzzli2_level_decode[tableaddr]);
777759           
778760            hackcount2++;
779761            hack_31_table_offset2++;
r24642r24643
785767            // 63 0006 after the last 31 write doing the how to play level data - the 06 is the width of the playfield, where does it come from?
786768            m_valueresponse = 0x00630006;
787769           
788            UINT8 xoredval = m_value0 ^ puzzli2_level_decode[(hack_31_table_offset + (hack_31_table_offset2&0xf))&0xff];
789            printf("value %02x, after xor is %02x (end, returning %02x as playfield width)\n", m_value0, xoredval, m_valueresponse);
770            UINT8 tableaddr = (hack_31_table_offset + (hack_31_table_offset2&0xf))&0xff;
771            UINT8 xoredval = m_value0 ^ puzzli2_level_decode[tableaddr];
772            printf("value %02x, after xor is %02x (table address,value %02x,%02x) (end, returning %02x as playfield width)\n", m_value0, xoredval, tableaddr, puzzli2_level_decode[tableaddr], m_valueresponse);
790773           
791774
792775         }

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