diff options
Diffstat (limited to 'src/mame/drivers/novag_savant.cpp')
-rw-r--r-- | src/mame/drivers/novag_savant.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/mame/drivers/novag_savant.cpp b/src/mame/drivers/novag_savant.cpp index f422b4504fb..f0e37bb471d 100644 --- a/src/mame/drivers/novag_savant.cpp +++ b/src/mame/drivers/novag_savant.cpp @@ -89,6 +89,7 @@ private: void mcu_io(address_map &map); // I/O handlers + DECLARE_WRITE8_MEMBER(nvram_w); DECLARE_READ8_MEMBER(nvram_r); DECLARE_READ8_MEMBER(stall_r); DECLARE_WRITE8_MEMBER(stall_w); @@ -136,9 +137,14 @@ void savant_state::machine_start() // Z80 side -READ8_MEMBER(savant_state::nvram_r) +WRITE8_MEMBER(savant_state::nvram_w) { // nvram is only d0-d3 + m_nvram[offset] = data & 0xf; +} + +READ8_MEMBER(savant_state::nvram_r) +{ return m_nvram[offset] & 0xf; } @@ -273,7 +279,7 @@ void savant_state::main_map(address_map &map) { map(0x0000, 0x5fff).rom(); map(0xc000, 0xcfff).ram(); - map(0xd000, 0xd0ff).mirror(0x0300).ram().r(FUNC(savant_state::nvram_r)).share("nvram"); + map(0xd000, 0xd0ff).mirror(0x0300).ram().rw(FUNC(savant_state::nvram_r), FUNC(savant_state::nvram_w)).share("nvram"); } void savant_state::main_io(address_map &map) |