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[Core/MCD] disabled Z80 write access to PRG-RAM (fixes Dungeon Explorer USA version)

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This commit is contained in:
EkeEke 2015-01-26 01:05:25 +01:00
parent bb53892956
commit d11e0166fa
2 changed files with 3 additions and 3 deletions
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4
core/cd_hw/scd.c
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@ -2,7 +2,7 @@
* Genesis Plus
* Mega CD / Sega CD hardware
*
* Copyright (C) 2012-2014 Eke-Eke (Genesis Plus GX)
* Copyright (C) 2012-2015 Eke-Eke (Genesis Plus GX)
*
* Redistribution and use of this code or any derivative works are permitted
* provided that the following conditions are met:
@ -1094,7 +1094,7 @@ void scd_init(void)
m68k.memory_map[i].write8 = NULL;
m68k.memory_map[i].write16 = NULL;
zbank_memory_map[i].read = NULL;
zbank_memory_map[i].write = NULL;
zbank_memory_map[i].write = zbank_unused_w; /* Z80 cannot write to PRG-RAM (Dungeon Explorer USA version) */
}
else

2
core/cd_hw/scd.h
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@ -2,7 +2,7 @@
* Genesis Plus
* Mega CD / Sega CD hardware
*
* Copyright (C) 2012-2014 Eke-Eke (Genesis Plus GX)
* Copyright (C) 2012-2015 Eke-Eke (Genesis Plus GX)
*
* Redistribution and use of this code or any derivative works are permitted
* provided that the following conditions are met: