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allow rp5c01 without battery (mame core still writes a 0-byte file tho)

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This commit is contained in:
Michaël Banaan Ananas 2014-08-07 12:14:33 +00:00
parent 35d214ebf3
commit 5015b8bb9d
3 changed files with 14 additions and 9 deletions
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13
src/emu/machine/rp5c01.c
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@ -66,10 +66,6 @@ static const int register_write_mask[2][16] =
};
// days per month
//static const int DAYS_PER_MONTH[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
// modes
enum
{
@ -179,6 +175,7 @@ rp5c01_device::rp5c01_device(const machine_config &mconfig, const char *tag, dev
device_rtc_interface(mconfig, *this),
device_nvram_interface(mconfig, *this),
m_out_alarm_cb(*this),
m_battery_backed(true),
m_mode(0),
m_reset(0),
m_alarm(1),
@ -231,7 +228,7 @@ void rp5c01_device::device_reset()
// 24 hour mode
m_reg[MODE01][REGISTER_12_24_SELECT] = 1;
if (clock() > 0)
if (m_battery_backed && clock() > 0)
set_current_time(machine());
}
@ -299,7 +296,8 @@ void rp5c01_device::nvram_default()
void rp5c01_device::nvram_read(emu_file &file)
{
file.read(m_ram, RAM_SIZE);
if (m_battery_backed)
file.read(m_ram, RAM_SIZE);
}
@ -310,7 +308,8 @@ void rp5c01_device::nvram_read(emu_file &file)
void rp5c01_device::nvram_write(emu_file &file)
{
file.write(m_ram, RAM_SIZE);
if (m_battery_backed)
file.write(m_ram, RAM_SIZE);
}

8
src/emu/machine/rp5c01.h
View File

@ -37,6 +37,10 @@
#define MCFG_RP5C01_OUT_ALARM_CB(_devcb) \
devcb = &rp5c01_device::set_out_alarm_callback(*device, DEVCB_##_devcb);
// include this macro if the chip is not battery backed
#define MCFG_RP5C01_REMOVE_BATTERY() \
rp5c01_device::remove_battery(*device);
//**************************************************************************
// TYPE DEFINITIONS
@ -53,6 +57,7 @@ public:
rp5c01_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
template<class _Object> static devcb_base &set_out_alarm_callback(device_t &device, _Object object) { return downcast<rp5c01_device &>(device).m_out_alarm_cb.set_callback(object); }
static void remove_battery(device_t &device) { downcast<rp5c01_device &>(device).m_battery_backed = false; }
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
@ -83,7 +88,8 @@ private:
static const device_timer_id TIMER_CLOCK = 0;
static const device_timer_id TIMER_16HZ = 1;
devcb_write_line m_out_alarm_cb;
devcb_write_line m_out_alarm_cb;
bool m_battery_backed;
UINT8 m_reg[2][13]; // clock registers
UINT8 m_ram[13]; // RAM

2
src/mame/drivers/punchout.c
View File

@ -12,7 +12,6 @@ driver by Nicola Salmoria
TODO:
- add useless driver config to choose between pink and white color proms
- video raw params - pixel clock is derived from 20.16mhz xtal
- spnchout rtc doesn't have a battery
- money bag placement might not be 100% correct in Arm Wrestling
@ -681,6 +680,7 @@ static MACHINE_CONFIG_DERIVED( spnchout, punchout )
MCFG_CPU_IO_MAP(spnchout_io_map)
MCFG_DEVICE_ADD("rtc", RP5C01, 0) // OSCIN -> Vcc
MCFG_RP5C01_REMOVE_BATTERY()
MCFG_RP5H01_ADD("rp5h01")
MCFG_MACHINE_RESET_OVERRIDE(punchout_state, spnchout)