diff options
author | arbee <rb6502@users.noreply.github.com> | 2018-09-10 23:15:08 -0400 |
---|---|---|
committer | arbee <rb6502@users.noreply.github.com> | 2018-09-10 23:15:08 -0400 |
commit | a4dd8e6be05b69edc80acbe49fc6ce7160c291fb (patch) | |
tree | 80400a3bcc9f4b74b5dcba4d48c7bde073ce939a /src/mame/drivers/decstation.cpp | |
parent | 7aa561acd86c7ce1da7e30122118c7ace4562914 (diff) |
decstation: added LANCE controller, started IRQ handling in gate array. [R. Belmont]
Diffstat (limited to 'src/mame/drivers/decstation.cpp')
-rw-r--r-- | src/mame/drivers/decstation.cpp | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/src/mame/drivers/decstation.cpp b/src/mame/drivers/decstation.cpp index a1e5d6a7834..f74e430c0b7 100644 --- a/src/mame/drivers/decstation.cpp +++ b/src/mame/drivers/decstation.cpp @@ -67,6 +67,7 @@ #include "machine/nscsi_cd.h" #include "machine/nscsi_hd.h" #include "machine/dec_lk201.h" +#include "machine/am79c90.h" #include "bus/rs232/rs232.h" #include "screen.h" #include "video/bt459.h" @@ -85,7 +86,8 @@ public: m_scc1(*this, "scc1"), m_asc(*this, "scsibus:7:asc"), m_vrom(*this, "gfx"), - m_bt459(*this, "bt459") + m_bt459(*this, "bt459"), + m_lance(*this, "am79c90") { } void kn02ba(machine_config &config); @@ -94,6 +96,7 @@ public: protected: DECLARE_READ_LINE_MEMBER(brcond0_r) { return ASSERT_LINE; } + DECLARE_WRITE_LINE_MEMBER(ioga_irq_w); DECLARE_READ32_MEMBER(cfb_r); DECLARE_WRITE32_MEMBER(cfb_w); @@ -107,7 +110,7 @@ private: uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); - required_device<cpu_device> m_maincpu; + required_device<r3041_device> m_maincpu; required_device<screen_device> m_screen; required_device<lk201_device> m_lk201; required_device<dec_ioga_device> m_ioga; @@ -116,6 +119,7 @@ private: required_device<ncr53c94_device> m_asc; required_memory_region m_vrom; required_device<bt459_device> m_bt459; + required_device<am79c90_device> m_lance; void threemin_map(address_map &map); @@ -298,6 +302,12 @@ WRITE32_MEMBER(decstation_state::cfb_w) MACHINE FUNCTIONS ***************************************************************************/ +WRITE_LINE_MEMBER(decstation_state::ioga_irq_w) +{ + // not sure this is correct + m_maincpu->set_input_line(R3000_IRQ3, state); +} + void decstation_state::machine_start() { m_vrom_ptr = m_vrom->base(); @@ -321,6 +331,7 @@ void decstation_state::threemin_map(address_map &map) map(0x10000000, 0x13ffffff).rw(FUNC(decstation_state::cfb_r), FUNC(decstation_state::cfb_w)); map(0x101c0000, 0x101c000f).m("bt459", FUNC(bt459_device::map)).umask32(0x000000ff); map(0x1c000000, 0x1c07ffff).m(m_ioga, FUNC(dec_ioga_device::map)); + map(0x1c0c0000, 0x1c0c0007).rw(m_lance, FUNC(am79c90_device::regs_r), FUNC(am79c90_device::regs_w)).umask32(0x0000ffff); map(0x1c100000, 0x1c100003).rw(m_scc0, FUNC(z80scc_device::ca_r), FUNC(z80scc_device::ca_w)).umask32(0x0000ff00); map(0x1c100004, 0x1c100007).rw(m_scc0, FUNC(z80scc_device::da_r), FUNC(z80scc_device::da_w)).umask32(0x0000ff00); map(0x1c100008, 0x1c10000b).rw(m_scc0, FUNC(z80scc_device::cb_r), FUNC(z80scc_device::cb_w)).umask32(0x0000ff00); @@ -364,19 +375,23 @@ MACHINE_CONFIG_START(decstation_state::kn02ba) BT459(config, m_bt459, 83'020'800); + AM79C90(config, m_lance, XTAL(12'500'000)); + m_lance->irq_out().set("ioga", FUNC(dec_ioga_device::lance_irq_w)); + DECSTATION_IOGA(config, m_ioga, XTAL(12'500'000)); + m_ioga->irq_out().set(FUNC(decstation_state::ioga_irq_w)); MC146818(config, m_rtc, XTAL(32'768)); m_rtc->irq().set("ioga", FUNC(dec_ioga_device::rtc_irq_w)); m_rtc->set_binary(true); SCC85C30(config, m_scc0, XTAL(14'745'600)/2); - //m_scc0->out_int_callback().set("ioga", FUNC(dec_ioga_device::scc0_irq_w)); + m_scc0->out_int_callback().set("ioga", FUNC(dec_ioga_device::scc0_irq_w)); m_scc0->out_txda_callback().set("rs232a", FUNC(rs232_port_device::write_txd)); m_scc0->out_txdb_callback().set("rs232b", FUNC(rs232_port_device::write_txd)); SCC85C30(config, m_scc1, XTAL(14'745'600)/2); - //m_scc1->out_int_callback().set("ioga", FUNC(dec_ioga_device::scc1_irq_w)); + m_scc1->out_int_callback().set("ioga", FUNC(dec_ioga_device::scc1_irq_w)); m_scc1->out_txdb_callback().set("lk201", FUNC(lk201_device::rx_w)); MCFG_DEVICE_ADD("lk201", LK201, 0) |