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bus/nes: Added emulation for A Winner is You homebrew cart. (#8582)

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0kmg 2021-10-02 12:21:34 -08:00 committed by GitHub
parent 4ba9d35e35
commit f8a45bd24f
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6 changed files with 81 additions and 4 deletions
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1
src/devices/bus/nes/nes_carts.cpp
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@ -460,6 +460,7 @@ void nes_cart(device_slot_interface &device)
device.option_add_internal("cufrom", NES_CUFROM);
device.option_add_internal("unrom512", NES_UNROM512);
device.option_add_internal("2a03pur", NES_2A03PURITANS);
device.option_add_internal("dpcmcart", NES_DPCMCART);
// other unsupported...
device.option_add_internal("unl_dance", NES_NROM); // UNSUPPORTED
device.option_add_internal("onebus", NES_NROM); // UNSUPPORTED

25
src/devices/bus/nes/nes_ines.hxx
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@ -444,7 +444,7 @@ static const nes_mmc mmc_list[] =
// 406 homebrew game Haradius Zero
// 407 VT03 PnP
// 408 Konami PnP
// 409 (Sealie) homebrew game A Winner is You, 64MB music cart, easy to support if dump is available
{ 409, UNL_DPCMCART }, // A Winner is You homebrew music cart
// 410 Unused or JY?
{ 411, BMC_A88S1 },
// 412 INTV 10-in-1 PnP 2nd edition
@ -643,8 +643,27 @@ void nes_cart_slot_device::call_load_ines()
mapper |= (header[8] & 0x0f) << 8;
// read submappers (based on 20140116 specs)
submapper = (header[8] & 0xf0) >> 4;
prg_size += ((header[9] & 0x0f) << 8) * 0x4000;
vrom_size += ((header[9] & 0xf0) << 4) * 0x2000;
// NES 2.0's extended exponential sizes, needed for loading PRG >= 64MB, CHR >= 32MB. These bizarrely go up to 7 * 2^63!
auto expsize = [] (u8 byte) { return (2*(byte & 0x03) + 1) << (byte >> 2); };
if ((header[9] & 0x0f) == 0x0f)
{
prg_size = expsize(header[4]);
if (prg_size == 0) // 0 only on overflow
fatalerror("NES 2.0 PRG size >= 4GB is unsupported.\n");
}
else
prg_size += ((header[9] & 0x0f) << 8) * 0x4000;
if ((header[9] & 0xf0) == 0xf0)
{
vrom_size = expsize(header[5]);
if (vrom_size == 0) // 0 only on overflow
fatalerror("NES 2.0 CHR size >= 4GB is unsupported.\n");
}
else
vrom_size += ((header[9] & 0xf0) << 4) * 0x2000;
}
ines_mapr_setup(mapper, &pcb_id);

1
src/devices/bus/nes/nes_pcb.hxx
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@ -370,6 +370,7 @@ static const nes_pcb pcb_list[] =
{ "cufrom", UNL_CUFROM },
{ "unrom512", UNL_UNROM512 },
{ "2a03pur", UNL_2A03PURITANS },
{ "dpcmcart", UNL_DPCMCART },
{ "ffe3", FFE3_BOARD },
{ "ffe4", FFE4_BOARD },
{ "ffe8", FFE8_BOARD },

6
src/devices/bus/nes/nes_slot.h
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@ -143,7 +143,11 @@ enum
// homebrew PCBs
NOCASH_NOCHR, // homebrew PCB design which uses NTRAM for CHRRAM
UNL_ACTION53, // homebrew PCB for homebrew multicarts
BATMAP_000, BATMAP_SRRX, UNL_CUFROM, UNL_UNROM512, UNL_2A03PURITANS,
UNL_2A03PURITANS,
// Batlab Electronics
BATMAP_000, BATMAP_SRRX,
// Sealie
UNL_CUFROM, UNL_UNROM512, UNL_DPCMCART,
// FFE boards, for mappers 6, 8, 17
FFE3_BOARD, FFE4_BOARD, FFE8_BOARD, TEST_BOARD,
// Unsupported (for place-holder boards, with no working emulation) & no-board (at init)

37
src/devices/bus/nes/sealie.cpp
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@ -9,6 +9,7 @@
Here we emulate the following homebrew PCBs
* SEALIE RET-CUFROM [mapper 29]
* SEALIE DPCMcart [mapper 409]
* SEALIE UNROM 512 [mapper 30]
***********************************************************************************************************/
@ -32,6 +33,7 @@
//-------------------------------------------------
DEFINE_DEVICE_TYPE(NES_CUFROM, nes_cufrom_device, "nes_cufrom", "NES Cart Sealie RET-CUFROM PCB")
DEFINE_DEVICE_TYPE(NES_DPCMCART, nes_dpcmcart_device, "nes_dpcmcart", "NES Cart Sealie DPCMcart PCB")
DEFINE_DEVICE_TYPE(NES_UNROM512, nes_unrom512_device, "nes_unrom512", "NES Cart Sealie UNROM 512 PCB")
@ -40,6 +42,11 @@ nes_cufrom_device::nes_cufrom_device(const machine_config &mconfig, const char *
{
}
nes_dpcmcart_device::nes_dpcmcart_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: nes_nrom_device(mconfig, NES_DPCMCART, tag, owner, clock)
{
}
nes_unrom512_device::nes_unrom512_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: nes_nrom_device(mconfig, NES_UNROM512, tag, owner, clock)
{
@ -54,6 +61,13 @@ void nes_cufrom_device::pcb_reset()
chr8(0, CHRRAM);
}
void nes_dpcmcart_device::pcb_reset()
{
prg16_89ab(0);
prg16_cdef(m_prg_chunks - 1);
chr8(0, CHRRAM);
}
void nes_unrom512_device::pcb_reset()
{
prg16_89ab(0);
@ -93,6 +107,29 @@ void nes_cufrom_device::write_h(offs_t offset, u8 data)
chr8(data & 0x03, CHRRAM);
}
/*-------------------------------------------------
Sealie DPCMcart board
Games: A Winner is You
This homebrew mapper supports a whopping 64MB which
is paged in 16K chucks at 0x8000. 0xc000 is fixed.
NES 2.0: mapper 409
In MAME: Partially supported.
TODO: Controls other than 'next track' don't work.
-------------------------------------------------*/
void nes_dpcmcart_device::write_h(offs_t offset, u8 data)
{
LOG_MMC(("dpcmcart write_h, offset: %04x, data: %02x\n", offset, data));
prg16_89ab(offset & 0x0fff);
}
/*-------------------------------------------------
Sealie UNROM 512 board

15
src/devices/bus/nes/sealie.h
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@ -22,6 +22,20 @@ public:
};
// ======================> nes_dpcmcart_device
class nes_dpcmcart_device : public nes_nrom_device
{
public:
// construction/destruction
nes_dpcmcart_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
virtual void write_h(offs_t offset, u8 data) override;
virtual void pcb_reset() override;
};
// ======================> nes_unrom512_device
class nes_unrom512_device : public nes_nrom_device
@ -38,6 +52,7 @@ public:
// device type definition
DECLARE_DEVICE_TYPE(NES_CUFROM, nes_cufrom_device)
DECLARE_DEVICE_TYPE(NES_DPCMCART, nes_dpcmcart_device)
DECLARE_DEVICE_TYPE(NES_UNROM512, nes_unrom512_device)
#endif // MAME_BUS_NES_SEALIE_H