mirror of
https://github.com/holub/mame
synced 2025-06-05 12:26:35 +03:00
84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/**********************************************************************
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RCA VIP Tiny BASIC VP-700 emulation
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Copyright MESS Team.
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Visit http://mamedev.org for licensing and usage restrictions.
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**********************************************************************/
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#include "vp700.h"
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//**************************************************************************
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// DEVICE DEFINITIONS
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//**************************************************************************
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const device_type VP700 = &device_creator<vp700_device>;
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//-------------------------------------------------
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// ROM( vp700 )
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//-------------------------------------------------
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ROM_START( vp700 )
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ROM_REGION( 0x1000, "vp700", 0 )
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ROM_LOAD( "vp700.bin", 0x0000, 0x1000, CRC(3f2b8524) SHA1(8fa88740cae82d8d62ea34891a657d3ca1fb732a) )
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ROM_END
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//-------------------------------------------------
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// rom_region - device-specific ROM region
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//-------------------------------------------------
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const rom_entry *vp700_device::device_rom_region() const
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{
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return ROM_NAME( vp700 );
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// vp700_device - constructor
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//-------------------------------------------------
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vp700_device::vp700_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
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device_t(mconfig, VP700, "VP700", tag, owner, clock),
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device_vip_expansion_card_interface(mconfig, *this)
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void vp700_device::device_start()
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{
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// find memory regions
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m_rom = memregion("vp700")->base();
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}
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//-------------------------------------------------
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// vip_program_r - program read
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//-------------------------------------------------
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UINT8 vp700_device::vip_program_r(address_space &space, offs_t offset, int cs, int cdef, int *minh)
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{
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UINT8 data = 0xff;
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if (offset < 0x1000)
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{
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*minh = 1;
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data = m_rom[offset & 0xfff];
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}
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return data;
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}
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