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Sega X-Board: gprider twin fixes.

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works, but needs cleanup
This commit is contained in:
Ariane Fugmann 2015-09-07 01:48:20 +02:00
parent 27f64fa967
commit 43947dd760
1 changed files with 39 additions and 13 deletions
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52
src/mame/drivers/segaxbd.c
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@ -371,26 +371,52 @@ public:
: segaxbd_new_state(mconfig, type, tag),
m_subpcb(*this, "subpcb")
{
for (int i = 0; i < 0x10; i++)
for (int i = 0; i < 0x800; i++)
{
shareram1[i] = 0x00;
shareram2[i] = 0x00;
shareram[i] = 0x0000;
}
rampage1 = 0x0000;
rampage2 = 0x0000;
}
required_device<segaxbd_state> m_subpcb;
DECLARE_READ16_MEMBER(shareram1_r) { return shareram1[offset]; }
DECLARE_WRITE16_MEMBER(shareram1_w) { COMBINE_DATA(&shareram1[offset]); }
DECLARE_READ16_MEMBER(shareram2_r) { return shareram2[offset]; }
DECLARE_WRITE16_MEMBER(shareram2_w) {COMBINE_DATA(&shareram2[offset]); }
DECLARE_READ16_MEMBER(shareram1_r) {
if (offset < 0x10) {
int address = (rampage1 << 4) + offset;
return shareram[address];
}
return 0xffff;
}
DECLARE_WRITE16_MEMBER(shareram1_w) {
if (offset < 0x10) {
int address = (rampage1 << 4) + offset;
COMBINE_DATA(&shareram[address]);
} else if (offset == 0x10) {
rampage1 = data & 0x00FF;
}
}
DECLARE_READ16_MEMBER(shareram2_r) {
if (offset < 0x10) {
int address = (rampage2 << 4) + offset;
return shareram[address];
}
return 0xffff;
}
DECLARE_WRITE16_MEMBER(shareram2_w) {
if (offset < 0x10) {
int address = (rampage2 << 4) + offset;
COMBINE_DATA(&shareram[address]);
} else if (offset == 0x10) {
rampage2 = data & 0x007F;
}
}
DECLARE_DRIVER_INIT(gprider_double);
UINT16 shareram1[0x20];
UINT16 shareram2[0x20];
UINT16 shareram[0x800];
UINT16 rampage1;
UINT16 rampage2;
};
//**************************************************************************
@ -3750,8 +3776,8 @@ DRIVER_INIT_MEMBER(segaxbd_new_state_double,gprider_double)
m_mainpcb->install_gprider();
m_subpcb->install_gprider();
m_mainpcb->m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x2F0000, 0x2F003f, read16_delegate(FUNC(segaxbd_new_state_double::shareram2_r), this), write16_delegate(FUNC(segaxbd_new_state_double::shareram1_w), this));
m_subpcb->m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x2F0000, 0x2F003f, read16_delegate(FUNC(segaxbd_new_state_double::shareram1_r), this), write16_delegate(FUNC(segaxbd_new_state_double::shareram2_w), this));
m_mainpcb->m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x2F0000, 0x2F003f, read16_delegate(FUNC(segaxbd_new_state_double::shareram1_r), this), write16_delegate(FUNC(segaxbd_new_state_double::shareram1_w), this));
m_subpcb->m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x2F0000, 0x2F003f, read16_delegate(FUNC(segaxbd_new_state_double::shareram2_r), this), write16_delegate(FUNC(segaxbd_new_state_double::shareram2_w), this));
}