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-rw-r--r--src/devices/bus/cbm2/hrg.c231
1 files changed, 231 insertions, 0 deletions
diff --git a/src/devices/bus/cbm2/hrg.c b/src/devices/bus/cbm2/hrg.c
new file mode 100644
index 00000000000..cb489ec359f
--- /dev/null
+++ b/src/devices/bus/cbm2/hrg.c
@@ -0,0 +1,231 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ CBM 500/600/700 High Resolution Graphics cartridge emulation
+
+**********************************************************************/
+
+/*
+
+ TODO:
+
+ http://www.wfking.de/hires.htm
+
+ - version A (EF9365, 512x512 interlaced, 1 page)
+ - version B (EF9366, 512x256 non-interlaced, 2 pages)
+
+*/
+
+#include "hrg.h"
+
+
+
+//**************************************************************************
+// MACROS/CONSTANTS
+//**************************************************************************
+
+#define EF9365_TAG "ef9365"
+#define EF9366_TAG "ef9366"
+#define SCREEN_TAG "screen"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type CBM2_HRG_A = &device_creator<cbm2_graphic_cartridge_a_device>;
+const device_type CBM2_HRG_B = &device_creator<cbm2_graphic_cartridge_b_device>;
+
+
+//-------------------------------------------------
+// ROM( cbm2_hrg )
+//-------------------------------------------------
+
+ROM_START( cbm2_hrg )
+ ROM_REGION( 0x2000, "bank3", 0 )
+ ROM_LOAD( "324688-01 sw gr 600.bin", 0x0000, 0x2000, CRC(863e9ef8) SHA1(d75ffa97b2dd4e1baefe4acaa130daae866ab0e8) )
+ROM_END
+
+
+//-------------------------------------------------
+// rom_region - device-specific ROM region
+//-------------------------------------------------
+
+const rom_entry *cbm2_graphic_cartridge_device::device_rom_region() const
+{
+ return ROM_NAME( cbm2_hrg );
+}
+
+
+//-------------------------------------------------
+// MACHINE_CONFIG_FRAGMENT( cbm2_hrg_a )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_FRAGMENT( cbm2_hrg_a )
+/* MCFG_SCREEN_ADD(SCREEN_TAG, RASTER)
+ MCFG_SCREEN_UPDATE_DEVICE(EF9365_TAG, ef9365_device, screen_update)
+ MCFG_SCREEN_SIZE(512, 512)
+ MCFG_SCREEN_VISIBLE_AREA(0, 512-1, 0, 512-1)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500))
+ MCFG_SCREEN_REFRESH_RATE(50)
+
+ MCFG_EF9365_ADD(EF9365_TAG, gdp_intf)*/
+MACHINE_CONFIG_END
+
+
+//-------------------------------------------------
+// MACHINE_CONFIG_FRAGMENT( cbm2_hrg_b )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_FRAGMENT( cbm2_hrg_b )
+/* MCFG_SCREEN_ADD(SCREEN_TAG, RASTER)
+ MCFG_SCREEN_UPDATE_DEVICE(EF9366_TAG, ef9366_device, screen_update)
+ MCFG_SCREEN_SIZE(512, 256)
+ MCFG_SCREEN_VISIBLE_AREA(0, 512-1, 0, 256-1)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500))
+ MCFG_SCREEN_REFRESH_RATE(50)
+
+ MCFG_EF9366_ADD(EF9366_TAG, gdp_intf)*/
+MACHINE_CONFIG_END
+
+
+//-------------------------------------------------
+// machine_config_additions - device-specific
+// machine configurations
+//-------------------------------------------------
+
+machine_config_constructor cbm2_graphic_cartridge_a_device::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( cbm2_hrg_a );
+}
+
+machine_config_constructor cbm2_graphic_cartridge_b_device::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( cbm2_hrg_b );
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// cbm2_graphic_cartridge_device - constructor
+//-------------------------------------------------
+
+cbm2_graphic_cartridge_device::cbm2_graphic_cartridge_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source) :
+ device_t(mconfig, type, name, tag, owner, clock, shortname, source),
+ device_cbm2_expansion_card_interface(mconfig, *this),
+ m_bank3(*this, "bank3")
+{
+}
+
+cbm2_graphic_cartridge_a_device::cbm2_graphic_cartridge_a_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ cbm2_graphic_cartridge_device(mconfig, CBM2_HRG_A, "CBM 500/600/700 High Resolution Graphics (A)", tag, owner, clock, "cbm2_hrga", __FILE__)
+ //m_gdc(*this, EF9365_TAG)
+{
+}
+
+cbm2_graphic_cartridge_b_device::cbm2_graphic_cartridge_b_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ cbm2_graphic_cartridge_device(mconfig, CBM2_HRG_B, "CBM 500/600/700 High Resolution Graphics (B)", tag, owner, clock, "cbm2_hrgb", __FILE__)
+ //m_gdc(*this, EF9366_TAG)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void cbm2_graphic_cartridge_device::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void cbm2_graphic_cartridge_device::device_reset()
+{
+ //m_gdc->reset();
+}
+
+
+//-------------------------------------------------
+// cbm2_bd_r - cartridge data read
+//-------------------------------------------------
+
+UINT8 cbm2_graphic_cartridge_device::cbm2_bd_r(address_space &space, offs_t offset, UINT8 data, int csbank1, int csbank2, int csbank3)
+{
+ if (!csbank3)
+ {
+ if (offset < 0x7f80)
+ {
+ data = m_bank3->base()[offset & 0x1fff];
+ }
+ else if (offset == 0x7f90)
+ {
+ /*
+
+ bit description
+
+ 0 light pen
+ 1
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7
+
+ */
+ }
+ else if (offset == 0x7fb0)
+ {
+ // hard copy
+ }
+ else if (offset >= 0x7ff0)
+ {
+ //data = m_gdc->data_r(space, offset & 0x07);
+ }
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// cbm2_bd_w - cartridge data write
+//-------------------------------------------------
+
+void cbm2_graphic_cartridge_device::cbm2_bd_w(address_space &space, offs_t offset, UINT8 data, int csbank1, int csbank2, int csbank3)
+{
+ if (!csbank3)
+ {
+ if (offset == 0x7f80)
+ {
+ /*
+
+ bit description
+
+ 0 hard copy (0=active)
+ 1 operating page select (version B)
+ 2
+ 3 read-modify-write (1=active)
+ 4 display switch (1=graphic)
+ 5 display page select (version B)
+ 6
+ 7
+
+ */
+ }
+ else if (offset >= 0x7ff0)
+ {
+ //m_gdc->data_w(space, offset & 0x07, data);
+ }
+ }
+}