1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
// license:BSD-3-Clause
// copyright-holders:Wilbert Pol
#include "emu.h"
#include "majutsushi.h"
#include "sound/dac.h"
#include "speaker.h"
namespace {
class msx_cart_majutsushi_device : public device_t, public msx_cart_interface
{
public:
msx_cart_majutsushi_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, MSX_CART_MAJUTSUSHI, tag, owner, clock)
, msx_cart_interface(mconfig, *this)
, m_dac(*this, "dac")
, m_rombank(*this, "rombank%u", 0U)
{ }
virtual std::error_condition initialize_cartridge(std::string &message) override;
protected:
// device_t implementation
virtual void device_start() override { }
virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
private:
template <int Bank> void bank_w(u8 data);
required_device<dac_8bit_r2r_device> m_dac;
memory_bank_array_creator<3> m_rombank;
};
void msx_cart_majutsushi_device::device_add_mconfig(machine_config &config)
{
DAC_8BIT_R2R(config, m_dac, 0); // unknown DAC
if (parent_slot())
m_dac->add_route(ALL_OUTPUTS, soundin(), 0.15);
}
std::error_condition msx_cart_majutsushi_device::initialize_cartridge(std::string &message)
{
if (!cart_rom_region())
{
message = "msx_cart_majutsushi_device: Required region 'rom' was not found.";
return image_error::INTERNAL;
}
if (cart_rom_region()->bytes() != 0x20000)
{
message = "msx_cart_majutsushi_device: Region 'rom' has unsupported size.";
return image_error::INVALIDLENGTH;
}
for (int i = 0; i < 3; i++)
m_rombank[i]->configure_entries(0, 16, cart_rom_region()->base(), 0x2000);
page(0)->install_rom(0x0000, 0x1fff, cart_rom_region()->base());
page(0)->install_read_bank(0x2000, 0x3fff, m_rombank[0]);
page(1)->install_rom(0x4000, 0x5fff, cart_rom_region()->base());
page(1)->install_write_handler(0x5000, 0x5000, 0, 0x0fff, 0, emu::rw_delegate(m_dac, FUNC(dac_8bit_r2r_device::write)));
page(1)->install_read_bank(0x6000, 0x7fff, m_rombank[0]);
page(1)->install_write_handler(0x6000, 0x6000, 0, 0x1fff, 0, emu::rw_delegate(*this, FUNC(msx_cart_majutsushi_device::bank_w<0>)));
page(1)->install_write_handler(0x6000, 0x6000, 0, 0x1fff, 0, emu::rw_delegate(*this, FUNC(msx_cart_majutsushi_device::bank_w<0>)));
page(1)->install_write_handler(0x6000, 0x6000, 0, 0x1fff, 0, emu::rw_delegate(*this, FUNC(msx_cart_majutsushi_device::bank_w<0>)));
page(2)->install_read_bank(0x8000, 0x9fff, m_rombank[1]);
page(2)->install_write_handler(0x8000, 0x8000, 0, 0x1fff, 0, emu::rw_delegate(*this, FUNC(msx_cart_majutsushi_device::bank_w<1>)));
page(2)->install_write_handler(0x8000, 0x8000, 0, 0x1fff, 0, emu::rw_delegate(*this, FUNC(msx_cart_majutsushi_device::bank_w<1>)));
page(2)->install_write_handler(0x8000, 0x8000, 0, 0x1fff, 0, emu::rw_delegate(*this, FUNC(msx_cart_majutsushi_device::bank_w<1>)));
page(2)->install_read_bank(0xa000, 0xbfff, m_rombank[2]);
page(2)->install_write_handler(0xa000, 0xa000, 0, 0x1fff, 0, emu::rw_delegate(*this, FUNC(msx_cart_majutsushi_device::bank_w<2>)));
page(2)->install_write_handler(0xa000, 0xa000, 0, 0x1fff, 0, emu::rw_delegate(*this, FUNC(msx_cart_majutsushi_device::bank_w<2>)));
page(2)->install_write_handler(0xa000, 0xa000, 0, 0x1fff, 0, emu::rw_delegate(*this, FUNC(msx_cart_majutsushi_device::bank_w<2>)));
page(3)->install_read_bank(0xc000, 0xdfff, m_rombank[1]);
page(3)->install_read_bank(0xe000, 0xffff, m_rombank[2]);
return std::error_condition();
}
template <int Bank>
void msx_cart_majutsushi_device::bank_w(u8 data)
{
m_rombank[Bank]->set_entry(data & 0x0f);
}
} // anonymous namespace
DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_MAJUTSUSHI, msx_cart_interface, msx_cart_majutsushi_device, "msx_cart_majutsushi", "MSX Cartridge - Majutsushi")
|