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seicopbl.cpp: not making sense lalala (nw)

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This commit is contained in:
angelosa 2018-05-14 19:09:47 +02:00
parent ff3f396611
commit 4d27f9c00c
2 changed files with 43 additions and 15 deletions
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55
src/mame/machine/seicopbl.cpp
View File

@ -142,7 +142,7 @@ WRITE16_MEMBER(seibu_cop_bootleg_device::cmd_trigger_w)
int sx = (m_host_space->read_dword(m_reg[0]+8) >> 16);
int dy = (m_host_space->read_dword(m_reg[target_reg]+4) >> 16);
int dx = (m_host_space->read_dword(m_reg[target_reg]+8) >> 16);
#if 0
if(data == 0xe30e)
{
@ -152,7 +152,7 @@ WRITE16_MEMBER(seibu_cop_bootleg_device::cmd_trigger_w)
#endif
dy -= sy;
dx -= sx;
#if 0
if(data == 0xe30e)
{
@ -160,7 +160,7 @@ WRITE16_MEMBER(seibu_cop_bootleg_device::cmd_trigger_w)
printf("%08x %08x\n",dx,dy);
}
#endif
//m_status = 7;
if(!dx)
{
@ -170,19 +170,23 @@ WRITE16_MEMBER(seibu_cop_bootleg_device::cmd_trigger_w)
else
{
m_status = 0;
m_angle = atan(double(dy)/double(dx)) * 128.0 / M_PI;
m_angle = atan(double(dy)/double(dx)) * 128.0 / M_PI;
//printf("%f\n",atan(double(dy)/double(dx)));
if(dx<0)
{
m_angle += 0x80;
}
}
m_dy = dy;
m_dx = dx;
// TODO: for some reason tackling go in inverted direction with this on
if(data == 0x118e)
// TODO: for some reason with 0x118e tackling go in inverted direction with this on
// TODO: even worse, calculating 0xe18e makes the game pretty slow
if(data == 0x118e || data == 0xe18e)
{
return;
}
@ -212,13 +216,14 @@ WRITE16_MEMBER(seibu_cop_bootleg_device::cmd_trigger_w)
if (!div)
{
//m_status |= 0x8000;
m_host_space->write_dword(m_reg[0] + (0x38), 0);
m_status |= 0x8000;
m_host_space->write_word(m_reg[0] + (0x38), 0);
break;
}
// TODO: scaling is wrong
m_host_space->write_dword(m_reg[0] + (0x38), m_dist / (div << 10));
m_host_space->write_word(m_reg[0] + (0x38), (m_dist << (5 - m_scale)) / div);
//m_host_space->write_dword(m_reg[0] + (0x38), m_dist / (div << 10));
break;
}
@ -277,7 +282,7 @@ WRITE16_MEMBER(seibu_cop_bootleg_device::cmd_trigger_w)
if(raw_angle == 0xc0)
amp*=2;
res = int(amp*sin(angle)) << 1;//m_raiden2cop->cop_scale;
res = int(amp*sin(angle)) << m_scale;
m_host_space->write_dword(m_reg[0] + 0x10, res);
@ -295,16 +300,24 @@ WRITE16_MEMBER(seibu_cop_bootleg_device::cmd_trigger_w)
if(raw_angle == 0x80)
amp*=2;
res = int(amp*cos(angle)) << 1;//m_raiden2cop->cop_scale;
res = int(amp*cos(angle)) << m_scale;
m_host_space->write_dword(m_reg[0] + 20, res);
break;
}
/*
sub32 4(r2)
write16h (r3)
addmem32 4(r1)
outputs to 0x046/0x047 (d104_move_offset ?)
*/
case 0xd104:
{
//m_host_space->write_dword(m_reg[0] + 4 + offs, 0x04000000);
int val = m_host_space->read_dword(m_reg[2]);
val += m_host_space->read_word(m_reg[3] + 8);
m_host_space->write_dword(m_reg[1] + 4,val);
break;
}
}
@ -354,6 +367,17 @@ READ16_MEMBER(seibu_cop_bootleg_device::prng_r)
return m_host_cpu->total_cycles() % (m_prng_max + 1);
}
READ16_MEMBER(seibu_cop_bootleg_device::scale_r)
{
return m_scale;
}
WRITE16_MEMBER(seibu_cop_bootleg_device::scale_w)
{
COMBINE_DATA(&m_scale);
m_scale &= 3;
}
// 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)
@ -361,7 +385,8 @@ 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(0x040, 0x043).ram(); // n/a
map(0x044, 0x045).rw(this, FUNC(seibu_cop_bootleg_device::scale_r), FUNC(seibu_cop_bootleg_device::scale_w));
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

3
src/mame/machine/seicopbl.h
View File

@ -28,6 +28,8 @@ public:
DECLARE_READ16_MEMBER( prng_max_r );
DECLARE_WRITE16_MEMBER( prng_max_w );
DECLARE_READ16_MEMBER( prng_r );
DECLARE_READ16_MEMBER( scale_r );
DECLARE_WRITE16_MEMBER( scale_w );
void seibucopbl_map(address_map &map);
protected:
@ -48,6 +50,7 @@ private:
int m_dx,m_dy;
uint32_t m_d104_move_offset;
uint16_t m_prng_max;
uint16_t m_scale;
//required_device<raiden2cop_device> m_raiden2cop;
};