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seicopbl.cpp: 0905 (jump around!) (nw)

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This commit is contained in:
angelosa 2018-05-13 12:09:43 +02:00
parent d2b60e2e1b
commit ab44abe2cc
2 changed files with 53 additions and 1 deletions
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48
src/mame/machine/seicop.cpp
View File

@ -70,6 +70,8 @@ WRITE16_MEMBER(seibu_cop_bootleg_device::cmd_trigger_w)
m_host_space->write_word((m_reg[6] + offs + 4), ((m_host_space->read_word(m_reg[5] + offs + 4) + dir_offset) / div));
break;
}
case 0x0205:
{
int ppos = m_host_space->read_dword(m_reg[0] + 4 + offs);
@ -80,7 +82,24 @@ WRITE16_MEMBER(seibu_cop_bootleg_device::cmd_trigger_w)
m_host_space->write_word(m_reg[0] + 0x1c + offs, m_host_space->read_word(m_reg[0] + 0x1c + offs) + delta);
break;
}
// jumping is done with this
case 0x0905:
{
//printf("%08x %08x\n",m_reg[0],offs);
int val = m_host_space->read_dword(m_reg[0] + 16 + offs);
int delta = m_host_space->read_dword(m_reg[0] + 0x28 + offs);
//printf("%08x + %08x = ",val,delta);
val += delta;
//printf("%08x\n",val);
m_host_space->write_dword(m_reg[0] + 16 + offs, val);
break;
}
case 0x130e:
case 0x138e:
case 0xe30e:
@ -232,15 +251,40 @@ WRITE16_MEMBER(seibu_cop_bootleg_device::d104_move_w)
m_d104_move_offset = (m_d104_move_offset & 0xffff) | (data << 16);
}
READ16_MEMBER(seibu_cop_bootleg_device::prng_max_r)
{
return m_prng_max;
}
WRITE16_MEMBER(seibu_cop_bootleg_device::prng_max_w)
{
COMBINE_DATA(&m_prng_max);
}
READ16_MEMBER(seibu_cop_bootleg_device::prng_r)
{
return m_host_cpu->total_cycles() % (m_prng_max + 1);
}
// anything that is read thru ROM range 0xc**** is replacement code, therefore on this HW they are latches.
void seibu_cop_bootleg_device::seibucopbl_map(address_map &map)
{
map(0x01e, 0x01f).ram(); // angle step, PC=0xc0186
map(0x028, 0x02b).ram(); // DMA fill latches
map(0x02c, 0x02d).rw(this, FUNC(seibu_cop_bootleg_device::prng_max_r), FUNC(seibu_cop_bootleg_device::prng_max_w));
map(0x040, 0x045).ram(); // n/a
map(0x046, 0x049).rw(this, FUNC(seibu_cop_bootleg_device::d104_move_r), FUNC(seibu_cop_bootleg_device::d104_move_w));
map(0x04a, 0x04f).ram(); // n/a
map(0x050, 0x05f).ram(); // n/a
map(0x070, 0x07f).ram(); // DMA registers, PC=0xc0034
map(0x0a0, 0x0af).rw(this, FUNC(seibu_cop_bootleg_device::reg_hi_addr_r), FUNC(seibu_cop_bootleg_device::reg_hi_addr_w));
map(0x0b0, 0x0b3).ram(); // unknown, not in original COP
map(0x0c0, 0x0cf).rw(this, FUNC(seibu_cop_bootleg_device::reg_lo_addr_r), FUNC(seibu_cop_bootleg_device::reg_lo_addr_w));
map(0x100, 0x105).w(this, FUNC(seibu_cop_bootleg_device::cmd_trigger_w));
map(0x1a0, 0x1a7).r(this, FUNC(seibu_cop_bootleg_device::prng_r));
map(0x1b0, 0x1b1).r(this, FUNC(seibu_cop_bootleg_device::status_r));
map(0x1b2, 0x1b3).r(this, FUNC(seibu_cop_bootleg_device::dist_r));
map(0x1b4, 0x1b5).r(this, FUNC(seibu_cop_bootleg_device::angle_r));
@ -282,6 +326,10 @@ void seibu_cop_bootleg_device::device_reset()
m_host_space = &m_host_cpu->space(AS_PROGRAM);
}
//-------------------------------------------------
// read_word - read a word at the given address
//-------------------------------------------------
inline uint16_t seibu_cop_bootleg_device::read_word(offs_t address)
{
return space().read_word(address << 1);

6
src/mame/machine/seicop.h
View File

@ -27,7 +27,10 @@ public:
DECLARE_WRITE16_MEMBER( cmd_trigger_w );
DECLARE_READ16_MEMBER( d104_move_r );
DECLARE_WRITE16_MEMBER( d104_move_w );
DECLARE_READ16_MEMBER( prng_max_r );
DECLARE_WRITE16_MEMBER( prng_max_w );
DECLARE_READ16_MEMBER( prng_r );
void seibucopbl_map(address_map &map);
protected:
// device-level overrides
@ -46,6 +49,7 @@ private:
uint16_t m_angle,m_dist,m_status;
int m_dx,m_dy;
uint32_t m_d104_move_offset;
uint16_t m_prng_max;
//required_device<raiden2cop_device> m_raiden2cop;
};