blob: 835a5551b92998acda48e4a1175dd2dc1cbd0b76 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
// license:BSD-3-Clause
// copyright-holders:Wilbert Pol
#include "emu.h"
#include "ram.h"
DEFINE_DEVICE_TYPE(MSX_SLOT_RAM, msx_slot_ram_device, "msx_slot_ram", "MSX Internal RAM")
msx_slot_ram_device::msx_slot_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, MSX_SLOT_RAM, tag, owner, clock)
, msx_internal_slot_interface(mconfig, *this)
{
}
void msx_slot_ram_device::device_start()
{
m_ram.resize(m_size);
save_item(NAME(m_ram));
}
uint8_t msx_slot_ram_device::read(offs_t offset)
{
if ( offset >= m_start_address && offset < m_end_address )
{
return m_ram[ offset - m_start_address ];
}
return 0xFF;
}
void msx_slot_ram_device::write(offs_t offset, uint8_t data)
{
if ( offset >= m_start_address && offset < m_end_address )
{
m_ram[offset - m_start_address] = data;
}
}
|