mirror of https://github.com/bsnes-emu/bsnes.git
144 lines
2.5 KiB
C++
144 lines
2.5 KiB
C++
//Sony CXD1800Q
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//CD-ROM decoder
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auto SuperDisc::sonyPollIRQ() -> uint8 {
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return 0x00;
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}
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auto SuperDisc::sonyReadData() -> uint8 {
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uint8 command = sony.command++;
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auto match = [&](const string& compare) -> bool {
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char hi = compare[0];
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if(hi == '?') hi = 0;
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if(hi >= '0' && hi <= '9') hi -= '0';
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if(hi >= 'a' && hi <= 'f') hi -= 'a' - 10;
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if(hi != '?' && hi != command.bits(4,7)) return false;
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char lo = compare[1];
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if(lo == '?') lo = 0;
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if(lo >= '0' && lo <= '9') lo -= '0';
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if(lo >= 'a' && lo <= 'f') lo -= 'a' - 10;
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if(lo != '?' && lo != command.bits(0,3)) return false;
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return true;
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};
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//DMA
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if(match("00")) return 0x00;
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//INST
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if(match("01")) return 0x10;
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//STS
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if(match("02")) return 0x00;
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//HFLG
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if(match("03")) return 0x00;
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//HMIN
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if(match("?4")) return 0x00;
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//HSEC
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if(match("?5")) return 0x00;
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//HBLK
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if(match("?6")) return 0x00;
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//HMOD
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if(match("?7")) return 0x00;
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//SFIL
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if(match("08")) return 0x00;
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//SCH
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if(match("09")) return 0x00;
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//SMOD
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if(match("0a")) return 0x00;
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//SCI
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if(match("0b")) return 0x00;
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//CMAD
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if(match("0c")) return 0x00;
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if(match("0d")) return 0x00;
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//MDFM
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if(match("?e")) return 0x00;
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//ADPC
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if(match("?f")) return 0x00;
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//DMXF
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if(match("18")) return 0x00;
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if(match("19")) return 0x00;
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//DMAD
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if(match("1a")) return 0x00;
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if(match("1b")) return 0x00;
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//DRAD
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if(match("1c")) return 0x00;
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if(match("1d")) return 0x00;
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return 0x00;
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}
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auto SuperDisc::sonyWriteCommand(uint8 data) -> void {
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sony.command = data;
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}
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auto SuperDisc::sonyWriteData(uint8 data) -> void {
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uint8 command = sony.command++;
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auto match = [&](const string& compare) -> bool {
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char hi = compare[0];
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if(hi == '?') hi = 0;
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if(hi >= '0' && hi <= '9') hi -= '0';
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if(hi >= 'a' && hi <= 'f') hi -= 'a' - 10;
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if(hi != '?' && hi != command.bits(4,7)) return false;
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char lo = compare[1];
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if(lo == '?') lo = 0;
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if(lo >= '0' && lo <= '9') lo -= '0';
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if(lo >= 'a' && lo <= 'f') lo -= 'a' - 10;
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if(lo != '?' && lo != command.bits(0,3)) return false;
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return true;
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};
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//DRIF
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if(match("?1")) return;
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//CHCT
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if(match("?2")) return;
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//DECT
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if(match("?3")) return;
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//INMS
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if(match("?4")) return;
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//INCL
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if(match("?5")) return;
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//CI
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if(match("?6")) return;
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//DMAD
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if(match("?7")) return;
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if(match("?8")) return;
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//DMXF
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if(match("?9")) return;
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if(match("?a")) return;
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//DRAD
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if(match("?b")) return;
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if(match("?c")) return;
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//PLBA
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if(match("0d")) return;
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}
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