3722e8ff14
(MESS) c64: Fixed IDE64 cartridge video corruption. (nw) (MESS) Added paddles and light pen VCS control devices. [Curt Coder]
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/**********************************************************************
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Commodore VIC-20 Standard 8K/16K ROM Cartridge 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 "vic20std.h"
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//**************************************************************************
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// DEVICE DEFINITIONS
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//**************************************************************************
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const device_type VIC20_STD = &device_creator<vic20_standard_cartridge_device>;
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// vic20_standard_cartridge_device - constructor
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//-------------------------------------------------
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vic20_standard_cartridge_device::vic20_standard_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
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: device_t(mconfig, VIC20_STD, "VIC-20 Standard Cartridge", tag, owner, clock),
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device_vic20_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 vic20_standard_cartridge_device::device_start()
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{
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}
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//-------------------------------------------------
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// vic20_cd_r - cartridge data read
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//-------------------------------------------------
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UINT8 vic20_standard_cartridge_device::vic20_cd_r(address_space &space, offs_t offset, UINT8 data, int ram1, int ram2, int ram3, int blk1, int blk2, int blk3, int blk5, int io2, int io3)
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{
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if (!blk1 && (m_blk1 != NULL))
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{
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data = m_blk1[offset];
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}
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else if (!blk2 && (m_blk2 != NULL))
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{
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data = m_blk2[offset];
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}
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else if (!blk3 && (m_blk3 != NULL))
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{
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data = m_blk3[offset];
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}
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else if (!blk5 && (m_blk5 != NULL))
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{
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data = m_blk5[offset];
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}
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return data;
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}
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