diff options
Diffstat (limited to 'src/mame/drivers/megatech.cpp')
-rw-r--r-- | src/mame/drivers/megatech.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/mame/drivers/megatech.cpp b/src/mame/drivers/megatech.cpp index eea2c85f0f2..75b8bc9a6f0 100644 --- a/src/mame/drivers/megatech.cpp +++ b/src/mame/drivers/megatech.cpp @@ -120,6 +120,7 @@ public: DECLARE_WRITE8_MEMBER(bios_port_7f_w); DECLARE_READ8_MEMBER(vdp1_count_r); DECLARE_READ8_MEMBER(sms_count_r); + DECLARE_WRITE8_MEMBER(sms_sn_w); DECLARE_READ8_MEMBER(sms_ioport_dc_r); DECLARE_READ8_MEMBER(sms_ioport_dd_r); DECLARE_WRITE8_MEMBER(mt_sms_standard_rom_bank_w); @@ -320,6 +321,11 @@ READ8_MEMBER(mtech_state::sms_count_r) return m_vdp->vcount_read(prg, offset); } +WRITE8_MEMBER(mtech_state::sms_sn_w) +{ + address_space &prg = m_z80snd->space(AS_PROGRAM); + m_vdp->vdp_w(prg, 0x10 >> 1, data, 0x00ff); +} READ8_MEMBER (mtech_state::sms_ioport_dc_r) { @@ -383,7 +389,7 @@ void mtech_state::set_genz80_as_sms() // ports io.install_read_handler (0x40, 0x41, 0, 0x3e, 0, read8_delegate(FUNC(mtech_state::sms_count_r),this)); - io.install_write_handler (0x40, 0x41, 0, 0x3e, 0, write8_delegate(FUNC(sn76496_device::command_w),(sn76496_base_device *)m_snsnd)); + io.install_write_handler (0x40, 0x41, 0, 0x3e, 0, write8_delegate(FUNC(mtech_state::sms_sn_w),this)); io.install_readwrite_handler (0x80, 0x80, 0, 0x3e, 0, read8_delegate(FUNC(sega315_5124_device::vram_read),(sega315_5124_device *)m_vdp), write8_delegate(FUNC(sega315_5124_device::vram_write),(sega315_5124_device *)m_vdp)); io.install_readwrite_handler (0x81, 0x81, 0, 0x3e, 0, read8_delegate(FUNC(sega315_5124_device::register_read),(sega315_5124_device *)m_vdp), write8_delegate(FUNC(sega315_5124_device::register_write),(sega315_5124_device *)m_vdp)); |