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apple/macquadra700.cpp: Adjusted CPU interleave so PIC1654S ADB modem works correctly. [R. Belmont]

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Systems promoted to working
---------------------------
Apple Macintosh Quadra 700 [R. Belmont]
This commit is contained in:
arbee 2023-07-05 18:45:18 -04:00
parent eada43fdd4
commit c7ea009423
1 changed files with 11 additions and 39 deletions
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36
src/mame/apple/macquadra700.cpp
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@ -9,13 +9,9 @@
****************************************************************************/
//#define USE_ADBMODEM
#include "emu.h"
#ifdef USE_ADBMODEM
#include "adbmodem.h"
#endif
#include "dafb.h"
#include "macadb.h"
#include "macrtc.h"
@ -56,9 +52,7 @@ public:
m_via1(*this, "via1"),
m_via2(*this, "via2"),
m_macadb(*this, "macadb"),
#ifdef USE_ADBMODEM
m_adbmodem(*this, "adbmodem"),
#endif
m_ram(*this, RAM_TAG),
m_swim(*this, "fdc"),
m_floppy(*this, "fdc:%d", 0U),
@ -83,9 +77,7 @@ private:
required_device<m68040_device> m_maincpu;
required_device<via6522_device> m_via1, m_via2;
required_device<macadb_device> m_macadb;
#ifdef USE_ADBMODEM
required_device<adbmodem_device> m_adbmodem;
#endif
required_device<ram_device> m_ram;
required_device<applefdintf_device> m_swim;
required_device_array<floppy_connector, 2> m_floppy;
@ -453,12 +445,7 @@ u8 macquadra_state::mac_via_in_a()
u8 macquadra_state::mac_via_in_b()
{
#ifdef USE_ADBMODEM
u8 val = m_rtc->data_r();
#else
u8 val = m_macadb->get_adb_state()<<4;
val |= m_rtc->data_r();
#endif
if (!m_adb_irq_pending)
{
@ -486,11 +473,8 @@ void macquadra_state::mac_via_out_a(u8 data)
void macquadra_state::mac_via_out_b(u8 data)
{
// printf("%s VIA1 OUT B: %02x\n", machine().describe_context().c_str(), data);
#ifdef USE_ADBMODEM
m_adbmodem->set_via_state((data & 0x30) >> 4);
#else
m_macadb->mac_adb_newaction((data & 0x30) >> 4);
#endif
m_rtc->ce_w((data & 0x04)>>2);
m_rtc->data_w(data & 0x01);
m_rtc->clk_w((data >> 1) & 0x01);
@ -590,7 +574,7 @@ void macquadra_state::macqd700(machine_config &config)
adapter.drq_handler_cb().set(m_dafb, FUNC(dafb_device::turboscsi_drq_w<0>));
});
DP83932C(config, m_sonic, 40_MHz_XTAL / 2);
DP83932C(config, m_sonic, 40_MHz_XTAL / 2); // clock is C20M on the schematics
m_sonic->set_bus(m_maincpu, 0);
nubus_device &nubus(NUBUS(config, "nubus", 40_MHz_XTAL / 4));
@ -610,9 +594,6 @@ void macquadra_state::macqd700(machine_config &config)
m_via1->writepa_handler().set(FUNC(macquadra_state::mac_via_out_a));
m_via1->writepb_handler().set(FUNC(macquadra_state::mac_via_out_b));
m_via1->irq_handler().set(FUNC(macquadra_state::mac_via_irq));
#ifndef USE_ADBMODEM
m_via1->cb2_handler().set(m_macadb, FUNC(macadb_device::adb_data_w));
#endif
R65NC22(config, m_via2, C7M/10);
m_via2->readpa_handler().set(FUNC(macquadra_state::mac_via2_in_a));
@ -621,25 +602,16 @@ void macquadra_state::macqd700(machine_config &config)
m_via2->writepb_handler().set(FUNC(macquadra_state::mac_via2_out_b));
m_via2->irq_handler().set(FUNC(macquadra_state::mac_via2_irq));
#ifdef USE_ADBMODEM
ADBMODEM(config, m_adbmodem, C7M);
m_adbmodem->via_clock_callback().set(m_via1, FUNC(via6522_device::write_cb1));
m_adbmodem->via_data_callback().set(m_via1, FUNC(via6522_device::write_cb2));
m_adbmodem->linechange_callback().set(m_macadb, FUNC(macadb_device::adb_linechange_w));
m_adbmodem->irq_callback().set(FUNC(macquadra_state::adb_irq_w));
m_via1->cb2_handler().set(m_adbmodem, FUNC(adbmodem_device::set_via_data));
config.set_maximum_quantum(attotime::from_hz(1000000));
#endif
config.set_perfect_quantum(m_maincpu);
MACADB(config, m_macadb, C15M);
#ifdef USE_ADBMODEM
m_macadb->adb_data_callback().set(m_adbmodem, FUNC(adbmodem_device::set_adb_line));
#else
m_macadb->set_mcu_mode(false);
m_macadb->via_clock_callback().set(m_via1, FUNC(via6522_device::write_cb1));
m_macadb->via_data_callback().set(m_via1, FUNC(via6522_device::write_cb2));
m_macadb->adb_irq_callback().set(FUNC(macquadra_state::adb_irq_w));
#endif
SPEAKER(config, "lspeaker").front_left();
SPEAKER(config, "rspeaker").front_right();
@ -665,4 +637,4 @@ ROM_END
} // anonymous namespace
COMP( 1991, macqd700, 0, 0, macqd700, macadb, macquadra_state, init_macqd700, "Apple Computer", "Macintosh Quadra 700", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE)
COMP( 1991, macqd700, 0, 0, macqd700, macadb, macquadra_state, init_macqd700, "Apple Computer", "Macintosh Quadra 700", MACHINE_SUPPORTS_SAVE)