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Diffstat (limited to 'src/devices/bus/svi3x8/expander/sv603.cpp')
-rw-r--r--src/devices/bus/svi3x8/expander/sv603.cpp119
1 files changed, 43 insertions, 76 deletions
diff --git a/src/devices/bus/svi3x8/expander/sv603.cpp b/src/devices/bus/svi3x8/expander/sv603.cpp
index fc8e8c86d96..a35b46e3f84 100644
--- a/src/devices/bus/svi3x8/expander/sv603.cpp
+++ b/src/devices/bus/svi3x8/expander/sv603.cpp
@@ -8,6 +8,7 @@
#include "emu.h"
#include "sv603.h"
+
#include "softlist.h"
#include "speaker.h"
@@ -36,20 +37,31 @@ const tiny_rom_entry *sv603_device::device_rom_region() const
// device_add_mconfig - add device configuration
//-------------------------------------------------
-void sv603_device::device_add_mconfig(machine_config &config)
-{
+MACHINE_CONFIG_START(sv603_device::device_add_mconfig)
SPEAKER(config, "mono").front_center();
- SN76489A(config, m_snd, XTAL(10'738'635) / 3).add_route(ALL_OUTPUTS, "mono", 1.00);
-
- // controller ports
- COLECOVISION_CONTROL_PORT(config, m_joy[0], colecovision_control_port_devices, "hand");
- m_joy[0]->irq().set(FUNC(sv603_device::joy_irq_w<0>));
- COLECOVISION_CONTROL_PORT(config, m_joy[1], colecovision_control_port_devices, nullptr);
- m_joy[1]->irq().set(FUNC(sv603_device::joy_irq_w<1>));
+ MCFG_DEVICE_ADD("snd", SN76489A, XTAL(10'738'635) / 3)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
// cartridge slot
- COLECOVISION_CARTRIDGE_SLOT(config, m_cart, colecovision_cartridges, nullptr);
- SOFTWARE_LIST(config, "cart_list").set_original("coleco");
+ MCFG_GENERIC_CARTSLOT_ADD("cartslot", generic_plain_slot, "coleco_cart")
+ MCFG_GENERIC_EXTENSIONS("bin,rom,col")
+ MCFG_GENERIC_LOAD(sv603_device, cartridge)
+ MCFG_SOFTWARE_LIST_ADD("cart_list", "coleco")
+MACHINE_CONFIG_END
+
+
+//**************************************************************************
+// CARTRIDGE
+//**************************************************************************
+
+DEVICE_IMAGE_LOAD_MEMBER( sv603_device, cartridge )
+{
+ uint32_t size = m_cart_rom->common_get_size("rom");
+
+ m_cart_rom->rom_alloc(size, GENERIC_ROM8_WIDTH, ENDIANNESS_LITTLE);
+ m_cart_rom->common_load_rom(m_cart_rom->get_rom_base(), size, "rom");
+
+ return image_init_result::PASS;
}
@@ -66,8 +78,7 @@ sv603_device::sv603_device(const machine_config &mconfig, const char *tag, devic
device_svi_expander_interface(mconfig, *this),
m_bios(*this, "bios"),
m_snd(*this, "snd"),
- m_joy{ {*this, "joy1"}, {*this, "joy2"} },
- m_cart(*this, COLECOVISION_CARTRIDGE_SLOT_TAG)
+ m_cart_rom(*this, "cartslot")
{
}
@@ -93,84 +104,40 @@ void sv603_device::device_reset()
// IMPLEMENTATION
//**************************************************************************
-template<int N>
-WRITE_LINE_MEMBER( sv603_device::joy_irq_w )
+READ8_MEMBER( sv603_device::mreq_r )
{
- m_expander->int_w(state);
-}
-
-uint8_t sv603_device::mreq_r(offs_t offset)
-{
- uint8_t data = 0xff;
-
- // ls138 (active low)
- int ccs1 = ((offset >> 13) == 0) ? 0 : 1;
- int ccs2 = ((offset >> 13) == 1) ? 0 : 1;
- int ccs3 = ((offset >> 13) == 2) ? 0 : 1;
- int ccs4 = ((offset >> 13) == 3) ? 0 : 1;
- int bios = ((offset >> 13) == 4) ? 0 : 1;
- // 5, 6, 7: not connected
-
m_expander->romdis_w(0);
- m_expander->ramdis_w(bios);
- data &= m_cart->bd_r(offset, data, ccs1, ccs2, ccs3, ccs4);
+ if (offset < 0x8000)
+ return m_cart_rom->read_rom(space, offset);
- if (bios == 0)
- data &= m_bios->as_u8(offset & 0x1fff);
+ if (offset >= 0x8000 && offset < 0xa000)
+ {
+ m_expander->ramdis_w(0);
+ return m_bios->as_u8(offset & 0x1fff);
+ }
- return data;
+ return 0xff;
}
-void sv603_device::mreq_w(offs_t offset, uint8_t data)
+WRITE8_MEMBER( sv603_device::mreq_w )
{
m_expander->romdis_w(0);
}
-uint8_t sv603_device::iorq_r(offs_t offset)
+READ8_MEMBER( sv603_device::iorq_r )
{
- uint8_t data = 0xff;
-
- switch (offset & 0xe0)
- {
- case 0xa0:
- data = m_expander->excs_r(offset);
- break;
-
- case 0xe0:
- data = m_joy[BIT(offset, 1)]->read();
- break;
- }
+ if (offset >= 0xa0 && offset <= 0xbf)
+ return m_expander->excs_r(space, offset);
- return data;
+ return 0xff;
}
-void sv603_device::iorq_w(offs_t offset, uint8_t data)
+WRITE8_MEMBER( sv603_device::iorq_w )
{
- switch (offset & 0xe0)
- {
- case 0x80:
- // keypad mode
- m_joy[0]->common0_w(1);
- m_joy[0]->common1_w(0);
- m_joy[1]->common0_w(1);
- m_joy[1]->common1_w(0);
- break;
-
- case 0xa0:
- m_expander->excs_w(offset, data);
- break;
-
- case 0xc0:
- // joystick mode
- m_joy[0]->common0_w(0);
- m_joy[0]->common1_w(1);
- m_joy[1]->common0_w(0);
- m_joy[1]->common1_w(1);
- break;
-
- case 0xe0:
+ if (offset >= 0xa0 && offset <= 0xbf)
+ m_expander->excs_w(space, offset, data);
+
+ if (offset >= 0xe0 && offset <= 0xff)
m_snd->write(data);
- break;
- }
}