diff options
Diffstat (limited to 'src/devices/bus/bbc/internal/stlswr.h')
-rw-r--r-- | src/devices/bus/bbc/internal/stlswr.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/devices/bus/bbc/internal/stlswr.h b/src/devices/bus/bbc/internal/stlswr.h new file mode 100644 index 00000000000..db7e263ce28 --- /dev/null +++ b/src/devices/bus/bbc/internal/stlswr.h @@ -0,0 +1,108 @@ +// license:BSD-3-Clause +// copyright-holders:Nigel Barnes +/********************************************************************** + + Solidisk Sideways RAM + + http://chrisacorns.computinghistory.org.uk/8bit_Upgrades/Solidisk_128KSWE.html + +**********************************************************************/ + + +#ifndef MAME_BUS_BBC_INTERNAL_STLSWR_H +#define MAME_BUS_BBC_INTERNAL_STLSWR_H + +#include "internal.h" + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class bbc_stlswr_device : + public device_t, + public device_bbc_internal_interface +{ +public: + // construction/destruction + bbc_stlswr_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + +protected: + bbc_stlswr_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); + + // device-level overrides + virtual void device_start() override; + + // optional information overrides + virtual const tiny_rom_entry *device_rom_region() const override; + + virtual bool overrides_rom() override { return true; } + virtual void romsel_w(offs_t offset, uint8_t data) override { m_romsel = data & 0x0f; } + virtual uint8_t paged_r(offs_t offset) override; + virtual void paged_w(offs_t offset, uint8_t data) override; + virtual void latch_fe60_w(uint8_t data) override { m_ramsel = (data & 0x07) | 0x08; } + + optional_device_array<bbc_romslot_device, 16> m_rom; + + uint8_t m_romsel; + uint8_t m_ramsel; +}; + + +class bbc_stlswr16_device : public bbc_stlswr_device +{ +public: + // construction/destruction + bbc_stlswr16_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + +protected: + // optional information overrides + virtual void device_add_mconfig(machine_config &config) override; +}; + + +class bbc_stlswr32_device : public bbc_stlswr_device +{ +public: + // construction/destruction + bbc_stlswr32_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + +protected: + // optional information overrides + virtual void device_add_mconfig(machine_config &config) override; +}; + + +class bbc_stlswr64_device : public bbc_stlswr_device +{ +public: + // construction/destruction + bbc_stlswr64_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + +protected: + // optional information overrides + virtual void device_add_mconfig(machine_config &config) override; +}; + + +class bbc_stlswr128_device : public bbc_stlswr_device +{ +public: + // construction/destruction + bbc_stlswr128_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + +protected: + // optional information overrides + virtual void device_add_mconfig(machine_config &config) override; +}; + + +// device type definition +DECLARE_DEVICE_TYPE(BBC_STLSWR16, bbc_stlswr16_device); +DECLARE_DEVICE_TYPE(BBC_STLSWR32, bbc_stlswr32_device); +DECLARE_DEVICE_TYPE(BBC_STLSWR64, bbc_stlswr64_device); +DECLARE_DEVICE_TYPE(BBC_STLSWR128, bbc_stlswr128_device); + + + +#endif /* MAME_BUS_BBC_INTERNAL_STLSWR_H */ |