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mccpm.cpp: Replace bankdev with memory view

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This commit is contained in:
AJR 2023-03-18 14:43:10 -04:00
parent f9898ed218
commit 02fe685a83
1 changed files with 7 additions and 20 deletions
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27
src/mame/skeleton/mccpm.cpp
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@ -31,7 +31,6 @@ No software to test with, so we'll never know if the FDC works.
#include "machine/z80pio.h"
#include "machine/z80sio.h"
#include "machine/f4702.h"
#include "machine/bankdev.h"
#include "machine/wd_fdc.h"
#include "bus/rs232/rs232.h"
#include "imagedev/floppy.h"
@ -45,10 +44,10 @@ public:
mccpm_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_bank(*this, "bankdev_map")
, m_fdc(*this, "fdc")
, m_fdd(*this, "fdc:%u", 0U)
, m_brg(*this, "brg%u", 1U)
, m_view(*this, "view")
{ }
void mccpm(machine_config &config);
@ -60,7 +59,6 @@ protected:
private:
void io_map(address_map &map);
void mem_map(address_map &map);
void bankdev_map(address_map &map);
void port44_w(u8);
u8 port44_r();
void fdc_irq(bool);
@ -70,25 +68,20 @@ private:
floppy_image_device *m_floppy = 0;
required_device<cpu_device> m_maincpu;
required_device<address_map_bank_device> m_bank;
required_device<fd1797_device> m_fdc;
required_device_array<floppy_connector, 2> m_fdd;
required_device_array<f4702_device, 2> m_brg;
memory_view m_view;
};
void mccpm_state::bankdev_map(address_map &map)
{
// bank 0
map(0x0000, 0x3fff).rom().region("maincpu", 0);
map(0x4000, 0x7fff).lr8(NAME([this] () { if (!machine().side_effects_disabled()) m_bank->set_bank(1); return 0xff; }));
// bank 1
map(0x8000, 0xffff).ram();
}
void mccpm_state::mem_map(address_map &map)
{
map(0x0000, 0x7fff).m(m_bank, FUNC(address_map_bank_device::amap8));
map(0x0000, 0x7fff).view(m_view);
m_view[0](0x0000, 0x3fff).rom().region("maincpu", 0);
m_view[0](0x4000, 0x7fff).lr8(NAME([this] () { if (!machine().side_effects_disabled()) m_view.select(1); return 0xff; }));
m_view[1](0x0000, 0x7fff).ram();
map(0x8000, 0xffff).ram();
}
@ -184,7 +177,7 @@ template <int N> void mccpm_state::bd_q_w(offs_t offset, u8 data)
void mccpm_state::machine_reset()
{
m_bank->set_bank(0);
m_view.select(0);
m_fdc_status = 0xfb;
m_floppy = nullptr;
}
@ -206,12 +199,6 @@ void mccpm_state::mccpm(machine_config &config)
m_maincpu->set_addrmap(AS_PROGRAM, &mccpm_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &mccpm_state::io_map);
ADDRESS_MAP_BANK(config, m_bank, 0);
m_bank->set_addrmap(0, &mccpm_state::bankdev_map);
m_bank->set_data_width(8);
m_bank->set_addr_width(16);
m_bank->set_stride(0x8000);
/* Devices */
// clock supplied by pair of HD4702 baud rate generators
F4702(config, m_brg[0], 2.4576_MHz_XTAL); // XTAL connected to Ix/Ox