mirror of
https://github.com/holub/mame
synced 2025-06-03 11:26:56 +03:00
08b42aabaa
(MESS) vic20: Added floating bus read support to VIC and cartridge interface. (MESS) vic10: Added floating bus read support to VIC-II and cartridge interface. (MESS) c64: Added floating bus read support to cartridge interface. [Curt Coder] (MESS) plus4: Added floating bus read support to TED and cartridge interface. Implemented some Diag264 test cartridge loopback connectors. [Curt Coder] (MESS) c16: Added PAL/NTSC variants. (nw) (MESS) v364: Fixed speech ROM mapping. (nw) (MESS) compis: Separated keyboard to its own file. (nw) (MESS) huebler: Cleanup. (nw)
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/**********************************************************************
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Commodore Plus/4 standard 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 "plus4_std.h"
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//**************************************************************************
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// DEVICE DEFINITIONS
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//**************************************************************************
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const device_type PLUS4_STD = &device_creator<plus4_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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// plus4_standard_cartridge_device - constructor
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//-------------------------------------------------
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plus4_standard_cartridge_device::plus4_standard_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
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device_t(mconfig, PLUS4_STD, "Plus/4 standard cartridge", tag, owner, clock),
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device_plus4_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 plus4_standard_cartridge_device::device_start()
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{
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}
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//-------------------------------------------------
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// plus4_cd_r - cartridge data read
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//-------------------------------------------------
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UINT8 plus4_standard_cartridge_device::plus4_cd_r(address_space &space, offs_t offset, UINT8 data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h)
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{
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if (!c1l && m_c1l_mask)
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{
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data = m_c1l[offset & m_c1l_mask];
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}
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else if (!c1h && m_c1h_mask)
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{
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data = m_c1h[offset & m_c1h_mask];
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}
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else if (!c2l && m_c2l_mask)
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{
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data = m_c2l[offset & m_c2l_mask];
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}
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else if (!c2h && m_c2h_mask)
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{
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data = m_c2h[offset & m_c2h_mask];
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}
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return data;
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}
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