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@@ -116,13 +116,13 @@ void cpu68k_map_all_ram(int start_addr, int end_addr, void *ptr, int is_sub)
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static u32 m68k_unmapped_read8(u32 a)
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{
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elprintf(EL_UIO, "m68k unmapped r8 [%06x] @%06x", a, SekPc);
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- return 0; // assume pulldown, as if MegaCD2 was attached
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+ return (PicoIn.AHW & PAHW_MCD) ? 0x00 : 0xff; // pulldown if MegaCD2 attached
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}
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static u32 m68k_unmapped_read16(u32 a)
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{
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elprintf(EL_UIO, "m68k unmapped r16 [%06x] @%06x", a, SekPc);
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- return 0;
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+ return (PicoIn.AHW & PAHW_MCD) ? 0x00 : 0xffff;
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}
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static void m68k_unmapped_write8(u32 a, u32 d)
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