diff options
author | 2013-03-07 11:09:57 +0000 | |
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committer | 2013-03-07 11:09:57 +0000 | |
commit | 7e0b63efa9978e8611337c4ac80ffc293bb527ee (patch) | |
tree | ea07d4755edebcd5bb6778abb0ac947def3d6916 /src/mess/machine/sns_slot.h | |
parent | 452c1a885124494ad458022dd19dfe11a9bfbbda (diff) |
split ROM/RAM accesses to cart in SNES slot implementation in order to simplify the code. nw.
Diffstat (limited to 'src/mess/machine/sns_slot.h')
-rw-r--r-- | src/mess/machine/sns_slot.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/mess/machine/sns_slot.h b/src/mess/machine/sns_slot.h index da1510a112c..8f17950b04d 100644 --- a/src/mess/machine/sns_slot.h +++ b/src/mess/machine/sns_slot.h @@ -58,10 +58,12 @@ public: virtual ~device_sns_cart_interface(); // reading and writing - virtual DECLARE_READ8_MEMBER(read_l) { return 0xff; } - virtual DECLARE_READ8_MEMBER(read_h) { return 0xff; } - virtual DECLARE_WRITE8_MEMBER(write_l) {} - virtual DECLARE_WRITE8_MEMBER(write_h) {} + 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_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_READ8_MEMBER(chip_read) { return 0xff; } virtual DECLARE_WRITE8_MEMBER(chip_write) {} @@ -137,8 +139,10 @@ public: // reading and writing virtual DECLARE_READ8_MEMBER(read_l); virtual DECLARE_READ8_MEMBER(read_h); + virtual DECLARE_READ8_MEMBER(read_ram); virtual DECLARE_WRITE8_MEMBER(write_l); virtual DECLARE_WRITE8_MEMBER(write_h); + virtual DECLARE_WRITE8_MEMBER(write_ram); virtual DECLARE_READ8_MEMBER(chip_read); virtual DECLARE_WRITE8_MEMBER(chip_write); |