diff options
Diffstat (limited to 'src/mame/machine/nycaptor.cpp')
-rw-r--r-- | src/mame/machine/nycaptor.cpp | 94 |
1 files changed, 2 insertions, 92 deletions
diff --git a/src/mame/machine/nycaptor.cpp b/src/mame/machine/nycaptor.cpp index 8a3f61311bf..4bb6e21a394 100644 --- a/src/mame/machine/nycaptor.cpp +++ b/src/mame/machine/nycaptor.cpp @@ -12,105 +12,15 @@ #include "emu.h" #include "includes/nycaptor.h" -READ8_MEMBER(nycaptor_state::nycaptor_68705_port_a_r) -{ - return (m_port_a_out & m_ddr_a) | (m_port_a_in & ~m_ddr_a); -} - -WRITE8_MEMBER(nycaptor_state::nycaptor_68705_port_a_w) -{ - m_port_a_out = data; -} - -WRITE8_MEMBER(nycaptor_state::nycaptor_68705_ddr_a_w) -{ - m_ddr_a = data; -} - -/* - * Port B connections: - * - * all bits are logical 1 when read (+5V pullup) - * - * 1 W when 1->0, enables latch which brings the command from main CPU (read from port A) - * 2 W when 0->1, copies port A to the latch for the main CPU - */ - -READ8_MEMBER(nycaptor_state::nycaptor_68705_port_b_r) -{ - return (m_port_b_out & m_ddr_b) | (m_port_b_in & ~m_ddr_b); -} - -WRITE8_MEMBER(nycaptor_state::nycaptor_68705_port_b_w) -{ - if (BIT(m_ddr_b, 1) && BIT(~data, 1) && BIT(m_port_b_out, 1)) - { - m_port_a_in = m_from_main; - - if (m_main_sent) - m_mcu->set_input_line(0, CLEAR_LINE); - m_main_sent = 0; - - } - - if (BIT(m_ddr_b, 2) && BIT(data, 2) && BIT(~m_port_b_out, 2)) - { - m_from_mcu = m_port_a_out; - m_mcu_sent = 1; - } - - m_port_b_out = data; -} - -WRITE8_MEMBER(nycaptor_state::nycaptor_68705_ddr_b_w) -{ - m_ddr_b = data; -} - - -READ8_MEMBER(nycaptor_state::nycaptor_68705_port_c_r) -{ - m_port_c_in = 0; - - if (m_main_sent) - m_port_c_in |= 0x01; - if (!m_mcu_sent) - m_port_c_in |= 0x02; - - return (m_port_c_out & m_ddr_c) | (m_port_c_in & ~m_ddr_c); -} - -WRITE8_MEMBER(nycaptor_state::nycaptor_68705_port_c_w) -{ - m_port_c_out = data; -} - -WRITE8_MEMBER(nycaptor_state::nycaptor_68705_ddr_c_w) -{ - m_ddr_c = data; -} - -WRITE8_MEMBER(nycaptor_state::nycaptor_mcu_w) -{ - m_from_main = data; - m_main_sent = 1; - m_mcu->set_input_line(0, ASSERT_LINE); -} - -READ8_MEMBER(nycaptor_state::nycaptor_mcu_r) -{ - m_mcu_sent = 0; - return m_from_mcu; -} READ8_MEMBER(nycaptor_state::nycaptor_mcu_status_r1) { /* bit 1 = when 1, mcu has sent data to the main cpu */ - return m_mcu_sent ? 2 : 0; + return m_bmcu->get_mcu_sent() ? 2 : 0; } READ8_MEMBER(nycaptor_state::nycaptor_mcu_status_r2) { /* bit 0 = when 1, mcu is ready to receive data from main cpu */ - return m_main_sent ? 0 : 1; + return m_bmcu->get_main_sent() ? 0 : 1; } |