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hd6309: Create HD6309E variant that fixes ajax regression (nw)

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This commit is contained in:
AJR 2017-12-09 18:08:01 -05:00
parent 6c7c1e8a67
commit 7c0d984514
3 changed files with 28 additions and 4 deletions
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15
src/devices/cpu/m6809/hd6309.cpp
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@ -126,19 +126,30 @@ March 2013 NPW:
//**************************************************************************
DEFINE_DEVICE_TYPE(HD6309, hd6309_device, "hd6309", "HD6309")
DEFINE_DEVICE_TYPE(HD6309E, hd6309e_device, "hd6309e", "HD6309E")
//-------------------------------------------------
// hd6309_device - constructor
//-------------------------------------------------
hd6309_device::hd6309_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
m6809_base_device(mconfig, tag, owner, clock, HD6309, 4),
hd6309_device::hd6309_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, device_type type, int divider) :
m6809_base_device(mconfig, tag, owner, clock, type, divider),
m_md(0),
m_temp_im(0)
{
}
hd6309_device::hd6309_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
hd6309_device(mconfig, tag, owner, clock, HD6309, 4)
{
}
hd6309e_device::hd6309e_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
hd6309_device(mconfig, tag, owner, clock, HD6309E, 1)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------

15
src/devices/cpu/m6809/hd6309.h
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@ -20,8 +20,9 @@
// TYPE DEFINITIONS
//**************************************************************************
// device type definition
// device type definitions
DECLARE_DEVICE_TYPE(HD6309, hd6309_device)
DECLARE_DEVICE_TYPE(HD6309E, hd6309e_device)
// ======================> hd6309_device
@ -32,6 +33,9 @@ public:
hd6309_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// delegating constructor
hd6309_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, device_type type, int divider);
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
@ -138,6 +142,15 @@ enum
HD6309_ZERO_WORD
};
// ======================> hd6309e_device
class hd6309e_device : public hd6309_device
{
public:
// construction/destruction
hd6309e_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
#define HD6309_IRQ_LINE M6809_IRQ_LINE /* 0 - IRQ line number */
#define HD6309_FIRQ_LINE M6809_FIRQ_LINE /* 1 - FIRQ line number */

2
src/mame/drivers/ajax.cpp
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@ -173,7 +173,7 @@ static MACHINE_CONFIG_START( ajax )
MCFG_CPU_ADD("maincpu", KONAMI, XTAL_24MHz/2/4) /* 052001 12/4 MHz*/
MCFG_CPU_PROGRAM_MAP(ajax_main_map)
MCFG_CPU_ADD("sub", HD6309, 3000000) /* ? */
MCFG_CPU_ADD("sub", HD6309E, 3000000) /* ? */
MCFG_CPU_PROGRAM_MAP(ajax_sub_map)
MCFG_CPU_ADD("audiocpu", Z80, 3579545) /* 3.58 MHz */