diff options
Diffstat (limited to 'src/emu/bus/vip/exp.c')
-rw-r--r-- | src/emu/bus/vip/exp.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/src/emu/bus/vip/exp.c b/src/emu/bus/vip/exp.c new file mode 100644 index 00000000000..511dd0814e0 --- /dev/null +++ b/src/emu/bus/vip/exp.c @@ -0,0 +1,211 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + RCA Cosmac VIP Expansion Interface emulation + + Copyright MESS Team. + Visit http://mamedev.org for licensing and usage restrictions. + +**********************************************************************/ + +#include "exp.h" + + + +//************************************************************************** +// MACROS/CONSTANTS +//************************************************************************** + +#define LOG 0 + + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +const device_type VIP_EXPANSION_SLOT = &device_creator<vip_expansion_slot_device>; + + + +//************************************************************************** +// DEVICE VIP_EXPANSION CARD INTERFACE +//************************************************************************** + +//------------------------------------------------- +// device_vip_expansion_card_interface - constructor +//------------------------------------------------- + +device_vip_expansion_card_interface::device_vip_expansion_card_interface(const machine_config &mconfig, device_t &device) + : device_slot_card_interface(mconfig, device) +{ + m_slot = dynamic_cast<vip_expansion_slot_device *>(device.owner()); +} + + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// vip_expansion_slot_device - constructor +//------------------------------------------------- + +vip_expansion_slot_device::vip_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : + device_t(mconfig, VIP_EXPANSION_SLOT, "VIP expansion port", tag, owner, clock, "vip_expansion_slot", __FILE__), + device_slot_interface(mconfig, *this), + m_write_irq(*this), + m_write_dma_out(*this), + m_write_dma_in(*this) +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void vip_expansion_slot_device::device_start() +{ + m_card = dynamic_cast<device_vip_expansion_card_interface *>(get_card_device()); + + // resolve callbacks + m_write_irq.resolve_safe(); + m_write_dma_out.resolve_safe(); + m_write_dma_in.resolve_safe(); +} + + +//------------------------------------------------- +// program_r - program read +//------------------------------------------------- + +UINT8 vip_expansion_slot_device::program_r(address_space &space, offs_t offset, int cs, int cdef, int *minh) +{ + UINT8 data = 0; + + if (m_card != NULL) + { + data = m_card->vip_program_r(space, offset, cs, cdef, minh); + } + + return data; +} + + +//------------------------------------------------- +// program_w - program write +//------------------------------------------------- + +void vip_expansion_slot_device::program_w(address_space &space, offs_t offset, UINT8 data, int cdef, int *minh) +{ + if (m_card != NULL) + { + m_card->vip_program_w(space, offset, data, cdef, minh); + } +} + + +//------------------------------------------------- +// io_r - io read +//------------------------------------------------- + +UINT8 vip_expansion_slot_device::io_r(address_space &space, offs_t offset) +{ + UINT8 data = 0; + + if (m_card != NULL) + { + data = m_card->vip_io_r(space, offset); + } + + return data; +} + + +//------------------------------------------------- +// io_w - io write +//------------------------------------------------- + +void vip_expansion_slot_device::io_w(address_space &space, offs_t offset, UINT8 data) +{ + if (m_card != NULL) + { + m_card->vip_io_w(space, offset, data); + } +} + + +//------------------------------------------------- +// dma_r - dma read +//------------------------------------------------- + +UINT8 vip_expansion_slot_device::dma_r(address_space &space, offs_t offset) +{ + UINT8 data = 0; + + if (m_card != NULL) + { + data = m_card->vip_dma_r(space, offset); + } + + return data; +} + + +//------------------------------------------------- +// dma_w - dma write +//------------------------------------------------- + +void vip_expansion_slot_device::dma_w(address_space &space, offs_t offset, UINT8 data) +{ + if (m_card != NULL) + { + m_card->vip_dma_w(space, offset, data); + } +} + + +//------------------------------------------------- +// screen_update - +//------------------------------------------------- + +UINT32 vip_expansion_slot_device::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) +{ + bool value = false; + + if (m_card != NULL) + { + value = m_card->vip_screen_update(screen, bitmap, cliprect); + } + + return value; +} + +READ_LINE_MEMBER( vip_expansion_slot_device::ef1_r ) { int state = CLEAR_LINE; if (m_card != NULL) state = m_card->vip_ef1_r(); return state; } +READ_LINE_MEMBER( vip_expansion_slot_device::ef3_r ) { int state = CLEAR_LINE; if (m_card != NULL) state = m_card->vip_ef3_r(); return state; } +READ_LINE_MEMBER( vip_expansion_slot_device::ef4_r ) { int state = CLEAR_LINE; if (m_card != NULL) state = m_card->vip_ef4_r(); return state; } +void vip_expansion_slot_device::sc_w(int data) { if (m_card != NULL) m_card->vip_sc_w(data); } +WRITE_LINE_MEMBER( vip_expansion_slot_device::q_w ) { if (m_card != NULL) m_card->vip_q_w(state); } +WRITE_LINE_MEMBER( vip_expansion_slot_device::run_w ) { if (m_card != NULL) m_card->vip_run_w(state); } + + + +//------------------------------------------------- +// SLOT_INTERFACE vip_expansion_cards ) +//------------------------------------------------- + +SLOT_INTERFACE_START( vip_expansion_cards ) + SLOT_INTERFACE("super", VP550) + //SLOT_INTERFACE("eprom", VP560) + //SLOT_INTERFACE("eprommer", VP565) + SLOT_INTERFACE("ram", VP570) + SLOT_INTERFACE("exp", VP575) + //SLOT_INTERFACE("exp2", VP576_EXP) + SLOT_INTERFACE("keypad", VP585) + SLOT_INTERFACE("color", VP590) + SLOT_INTERFACE("simple", VP595) + SLOT_INTERFACE("basic", VP700) +SLOT_INTERFACE_END |