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Added basic 3d FIFO understanding and hooked up FIFO irq processed to Hyper Neo Geo 64, meaning a far better 3d display in all games [Angelo Salese]

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This commit is contained in:
Angelo Salese 2013-12-14 02:56:29 +00:00
parent 21a89dcf8b
commit c2f7d28f60
2 changed files with 32 additions and 14 deletions
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41
src/mame/drivers/hng64.c
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@ -30,6 +30,9 @@ Notes:
* The Japanese text on the Roads Edge network screen says : "waiting to connect network... please wait without touching machine"
* Xrally and Roads Edge have a symbols table at respectively 0xb2f30 and 0xe10c0
Also, to enter into service mode you need to change value of 0xa2363 / 0xcfb53 to 1 during gameplay (of course, if you put into free play mode games are playable)
ToDo:
* Buriki One / Xrally and Roads Edge doesn't coin it up, irq issue?
* Sprite garbage in Beast Busters 2nd Nightmare, another irq issue?
@ -477,13 +480,13 @@ READ32_MEMBER(hng64_state::hng64_random_read)
READ32_MEMBER(hng64_state::hng64_com_r)
{
logerror("com read (PC=%08x): %08x %08x = %08x\n", space.device().safe_pc(), (offset*4)+0xc0000000, mem_mask, m_com_ram[offset]);
//logerror("com read (PC=%08x): %08x %08x = %08x\n", space.device().safe_pc(), (offset*4)+0xc0000000, mem_mask, m_com_ram[offset]);
return m_com_ram[offset];
}
WRITE32_MEMBER(hng64_state::hng64_com_w)
{
logerror("com write (PC=%08x): %08x %08x = %08x\n", space.device().safe_pc(), (offset*4)+0xc0000000, mem_mask, data);
//logerror("com write (PC=%08x): %08x %08x = %08x\n", space.device().safe_pc(), (offset*4)+0xc0000000, mem_mask, data);
COMBINE_DATA(&m_com_ram[offset]);
}
@ -841,11 +844,11 @@ WRITE32_MEMBER(hng64_state::hng64_3d_2_w)
WRITE32_MEMBER(hng64_state::dl_w)
{
UINT32 *hng64_dl = m_dl;
int i;
UINT16 packet3d[16];
//UINT16 packet3d[16];
COMBINE_DATA(&hng64_dl[offset]);
#if 0
if (offset == 0x08 || offset == 0x7f || // Special buggers.
offset == 0x10 || offset == 0x18 ||
offset == 0x20 || offset == 0x28 ||
@ -868,6 +871,7 @@ WRITE32_MEMBER(hng64_state::dl_w)
// Send it off to the 3d subsystem.
hng64_command3d(machine(), packet3d);
}
#endif
}
#if 0
@ -879,10 +883,16 @@ READ32_MEMBER(hng64_state::dl_r)
}
#endif
TIMER_CALLBACK_MEMBER(hng64_state::hng64_3dfifo_processed )
{
// ...
m_set_irq(0x0008);
}
/* TODO: different param for both Samurai games, less FIFO to process? */
WRITE32_MEMBER(hng64_state::dl_upload_w)
{
// this handles 3d to fb upload
#if 0
UINT16 packet3d[16];
for(int packetStart=0;packetStart<0x200/4;packetStart+=8)
@ -900,7 +910,8 @@ WRITE32_MEMBER(hng64_state::dl_upload_w)
// Send it off to the 3d subsystem.
hng64_command3d(machine(), packet3d);
}
#endif
machine().scheduler().timer_set(m_maincpu->cycles_to_attotime(0x200*8), timer_expired_delegate(FUNC(hng64_state::hng64_3dfifo_processed),this));
}
WRITE32_MEMBER(hng64_state::dl_control_w) // This handles framebuffers
@ -910,7 +921,9 @@ WRITE32_MEMBER(hng64_state::dl_control_w) // This handles framebuffers
clear3d();
}
// if(data & 1) // swap buffers
// printf("%02x\n",data);
// if(data & 1) // swap buffers?
// if(data & 4) // reset buffer count
}
@ -966,10 +979,13 @@ READ32_MEMBER(hng64_state::tcram_r)
unknown purpose (vblank? related to the display list?).
bit 1 needs to be off, otherwise Fatal Fury WA locks up (FIFO full?)
bit 0 is likely to be fifo empty (active low)
*/
READ32_MEMBER(hng64_state::unk_vreg_r)
{
return ++m_unk_vreg_toggle;
return 0;
// return ++m_unk_vreg_toggle;
}
/***** I don't think there is a soundram2, having it NOT hooked up causes xrally to copy the sound program to the expected location, see memory map note *****/
@ -1835,9 +1851,9 @@ void hng64_state::m_set_irq(UINT32 irq_vector)
This is written with irqs DISABLED
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000001. (PC=80009b54) 0 vblank irq
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000002. (PC=80009b5c) 1
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000004. (PC=80009b64) 2
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000008. (PC=80009b6c) 3 (actually this is cleared even if it isn't fired?)
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000002. (PC=80009b5c) 1 <empty>
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000004. (PC=80009b64) 2 <empty>
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000008. (PC=80009b6c) 3 3d fifo processed irq
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000200. (PC=80009b70) 9
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000400. (PC=80009b78) 10
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00020000. (PC=80009b80) 17
@ -1876,7 +1892,8 @@ TIMER_DEVICE_CALLBACK_MEMBER(hng64_state::hng64_irq)
{
case 224*2: m_set_irq(0x0001); break; // lv 0 vblank irq
// case 0*2: m_set_irq(0x0002); break; // lv 1
//case 64*2: m_set_irq(0x0004); break; // lv 2
// case 32*2: m_set_irq(0x0008); break; // lv 2
// case 64*2: m_set_irq(0x0008); break; // lv 2
case 128*2: m_set_irq(0x0800); break; // lv 11 network irq?
}
}

1
src/mame/includes/hng64.h
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@ -215,6 +215,7 @@ public:
DECLARE_CUSTOM_INPUT_MEMBER(acc_down_r);
DECLARE_CUSTOM_INPUT_MEMBER(brake_down_r);
void clear3d();
TIMER_CALLBACK_MEMBER(hng64_3dfifo_processed);
};
/*----------- defined in video/hng64.c -----------*/