diff options
Diffstat (limited to 'src/devices/bus/ti99/peb/pcode.h')
-rw-r--r-- | src/devices/bus/ti99/peb/pcode.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/devices/bus/ti99/peb/pcode.h b/src/devices/bus/ti99/peb/pcode.h new file mode 100644 index 00000000000..088ca1ae4b3 --- /dev/null +++ b/src/devices/bus/ti99/peb/pcode.h @@ -0,0 +1,67 @@ +// license:LGPL-2.1+ +// copyright-holders:Michael Zapf +/**************************************************************************** + + TI-99 P-Code Card emulation. + See p_code.c for documentation + + Michael Zapf + July 2009 + Revised July 2010 + February 2012: Rewritten as class + +*****************************************************************************/ + +#ifndef MAME_BUS_TI99_PEB_PCODE_H +#define MAME_BUS_TI99_PEB_PCODE_H + +#pragma once + +#include "peribox.h" +#include "machine/tmc0430.h" + +DECLARE_DEVICE_TYPE(TI99_P_CODE, ti_pcode_card_device) + +class ti_pcode_card_device : public ti_expansion_card_device +{ +public: + ti_pcode_card_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + DECLARE_READ8Z_MEMBER(readz) override; + DECLARE_WRITE8_MEMBER(write) override; + DECLARE_READ8Z_MEMBER(crureadz) override; + DECLARE_WRITE8_MEMBER(cruwrite) override; + DECLARE_SETADDRESS_DBIN_MEMBER(setaddress_dbin) override; + + DECLARE_WRITE_LINE_MEMBER(clock_in) override; + + DECLARE_WRITE_LINE_MEMBER( ready_line ); + DECLARE_INPUT_CHANGED_MEMBER( switch_changed ); + +protected: + virtual void device_start() override; + virtual void device_reset() override; + virtual void device_config_complete() override; + virtual const tiny_rom_entry *device_rom_region() const override; + virtual machine_config_constructor device_mconfig_additions() const override; + virtual ioport_constructor device_input_ports() const override; + +private: + void debugger_read(address_space& space, uint16_t addr, uint8_t& value); + tmc0430_device* m_grom[8]; + uint8_t* m_rom; + int m_bank_select; + bool m_active; + int m_clock_count; + bool m_clockhigh; + + // Address in card area + bool m_inDsrArea; + bool m_isrom0; + bool m_isrom12; + bool m_isgrom; + + // Recent address + int m_address; +}; + +#endif // MAME_BUS_TI99_PEB_PCODE_H |