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i8355: Use required_region_ptr instead of device_memory_interface for internal ROM (nw)

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This commit is contained in:
AJR 2017-03-25 09:24:52 -04:00
parent 50a81e25fc
commit 02f476fc1e
2 changed files with 5 additions and 26 deletions
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22
src/devices/machine/i8355.cpp
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@ -41,11 +41,6 @@ enum
// device type definition // device type definition
const device_type I8355 = device_creator<i8355_device>; const device_type I8355 = device_creator<i8355_device>;
// default address map
static ADDRESS_MAP_START( i8355, AS_0, 8, i8355_device )
AM_RANGE(0x000, 0x7ff) AM_ROM
ADDRESS_MAP_END
//************************************************************************** //**************************************************************************
@ -94,12 +89,11 @@ inline void i8355_device::write_port(int port, uint8_t data)
i8355_device::i8355_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) i8355_device::i8355_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, I8355, "Intel 8355", tag, owner, clock, "i8355", __FILE__), : device_t(mconfig, I8355, "Intel 8355", tag, owner, clock, "i8355", __FILE__),
device_memory_interface(mconfig, *this),
m_in_pa_cb(*this), m_in_pa_cb(*this),
m_out_pa_cb(*this), m_out_pa_cb(*this),
m_in_pb_cb(*this), m_in_pb_cb(*this),
m_out_pb_cb(*this), m_out_pb_cb(*this),
m_space_config("ram", ENDIANNESS_LITTLE, 8, 11, 0, nullptr, *ADDRESS_MAP_NAME(i8355)) m_rom(*this, DEVICE_SELF, 0x800)
{ {
} }
@ -133,18 +127,6 @@ void i8355_device::device_reset()
} }
//-------------------------------------------------
// memory_space_config - return a description of
// any address spaces owned by this device
//-------------------------------------------------
const address_space_config *i8355_device::memory_space_config(address_spacenum spacenum) const
{
return (spacenum == AS_0) ? &m_space_config : nullptr;
}
//------------------------------------------------- //-------------------------------------------------
// io_r - register read // io_r - register read
//------------------------------------------------- //-------------------------------------------------
@ -206,5 +188,5 @@ WRITE8_MEMBER( i8355_device::io_w )
READ8_MEMBER( i8355_device::memory_r ) READ8_MEMBER( i8355_device::memory_r )
{ {
return this->space().read_byte(offset); return m_rom[offset];
} }

9
src/devices/machine/i8355.h
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@ -67,8 +67,7 @@
// ======================> i8355_device // ======================> i8355_device
class i8355_device : public device_t, class i8355_device : public device_t
public device_memory_interface
{ {
public: public:
// construction/destruction // construction/destruction
@ -89,9 +88,6 @@ protected:
virtual void device_start() override; virtual void device_start() override;
virtual void device_reset() override; virtual void device_reset() override;
// device_memory_interface overrides
virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const override;
inline uint8_t read_port(int port); inline uint8_t read_port(int port);
inline void write_port(int port, uint8_t data); inline void write_port(int port, uint8_t data);
@ -106,7 +102,8 @@ private:
uint8_t m_output[2]; // output latches uint8_t m_output[2]; // output latches
uint8_t m_ddr[2]; // DDR latches uint8_t m_ddr[2]; // DDR latches
const address_space_config m_space_config; // internal ROM
required_region_ptr<uint8_t> m_rom;
}; };