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super-paranoid check (to my knowledge nothing triggers these, if no nvram is available, but who knows if we need them in future). nw.

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This commit is contained in:
Fabio Priuli 2013-06-15 17:57:43 +00:00
parent 2d352e7e9d
commit e85a6675c9
1 changed files with 2 additions and 2 deletions
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4
src/mess/machine/sns_slot.h
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@ -110,10 +110,10 @@ public:
// reading and writing
virtual DECLARE_READ8_MEMBER(read_l) { return 0xff; } // ROM access in range [00-7f]
virtual DECLARE_READ8_MEMBER(read_h) { return 0xff; } // ROM access in range [80-ff]
virtual DECLARE_READ8_MEMBER(read_ram) { UINT32 mask = m_nvram_size - 1; return m_nvram[offset & mask]; } // NVRAM access
virtual DECLARE_READ8_MEMBER(read_ram) { if (m_nvram) { UINT32 mask = m_nvram_size - 1; return m_nvram[offset & mask]; } else return 0xff; } // NVRAM access
virtual DECLARE_WRITE8_MEMBER(write_l) {} // used by carts with subslots
virtual DECLARE_WRITE8_MEMBER(write_h) {} // used by carts with subslots
virtual DECLARE_WRITE8_MEMBER(write_ram) { UINT32 mask = m_nvram_size - 1; m_nvram[offset & mask] = data; return; } // NVRAM access
virtual DECLARE_WRITE8_MEMBER(write_ram) { if (m_nvram) { UINT32 mask = m_nvram_size - 1; m_nvram[offset & mask] = data; return; } } // NVRAM access
virtual DECLARE_READ8_MEMBER(chip_read) { return 0xff; }
virtual DECLARE_WRITE8_MEMBER(chip_write) {}
virtual void speedup_addon_bios_access() {};