bus/nes: Improved support for BMC-64IN1NR boards. (#9586)

New working software list additions (nes.xml)
-----------------------------------
76 in 1 Y2K [superretrogamer2741]
Super HiK 42 in 1 (K-42001) [Consolethinks]
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0kmg 2022-04-17 16:49:57 -08:00 committed by GitHub
parent 8b2ee49845
commit ab79550425
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 68 additions and 49 deletions

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@ -84139,6 +84139,21 @@ be better to redump them properly. -->
</part> </part>
</software> </software>
<software name="mc_76y2k">
<description>76 in 1 Y2K</description>
<year>19??</year>
<publisher>&lt;pirate&gt;</publisher>
<part name="cart" interface="nes_cart">
<feature name="slot" value="bmc_64y2k" />
<dataarea name="prg" size="2097152">
<rom name="y2k 76-in-1.prg" size="2097152" crc="736dd9e1" sha1="d666c646342fd5c72630d989d3f633c53143ef33" />
</dataarea>
<!-- 8k VRAM on cartridge -->
<dataarea name="vram" size="8192">
</dataarea>
</part>
</software>
<software name="mc_77"> <software name="mc_77">
<description>77 in 1 (NT141)</description> <description>77 in 1 (NT141)</description>
<year>19??</year> <year>19??</year>
@ -85882,6 +85897,21 @@ be better to redump them properly. -->
</part> </part>
</software> </software>
<software name="mc_sh42">
<description>Super HiK 42 in 1 (K-42001)</description>
<year>1998</year>
<publisher>&lt;pirate&gt;</publisher>
<part name="cart" interface="nes_cart">
<feature name="slot" value="bmc_64y2k" />
<dataarea name="prg" size="1048576">
<rom name="super hik 42-in-1 (k-42001).prg" size="1048576" crc="ad97266b" sha1="a10bd03f1e125fa1d39b1c9db2b49b783de3dd45" />
</dataarea>
<!-- 8k VRAM on cartridge -->
<dataarea name="vram" size="8192">
</dataarea>
</part>
</software>
<software name="mc_sh6ek"> <software name="mc_sh6ek">
<description>1994 Super HIK 6 in 1 (EK-601)</description> <description>1994 Super HIK 6 in 1 (EK-601)</description>
<year>19??</year> <year>19??</year>

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@ -357,8 +357,8 @@ nes_bmc_22games_device::nes_bmc_22games_device(const machine_config &mconfig, co
{ {
} }
nes_bmc_64y2k_device::nes_bmc_64y2k_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) nes_bmc_64y2k_device::nes_bmc_64y2k_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: nes_nrom_device(mconfig, NES_BMC_64Y2K, tag, owner, clock) : nes_nrom_device(mconfig, NES_BMC_64Y2K, tag, owner, clock), m_reg_mask(0)
{ {
} }
@ -986,14 +986,11 @@ void nes_bmc_64y2k_device::device_start()
void nes_bmc_64y2k_device::pcb_reset() void nes_bmc_64y2k_device::pcb_reset()
{ {
m_chr_source = m_vrom_chunks ? CHRROM : CHRRAM; m_reg_mask = m_chr_source == CHRROM ? 0x03 : 0x01;
chr8(0, m_chr_source);
m_reg[0] = 0x80; m_reg[0] = 0x80;
m_reg[1] = 0x43; m_reg[1] = 0x43;
m_reg[2] = m_reg[3] = 0; m_reg[2] = m_reg[3] = 0;
set_prg(); update_banks();
set_nt_mirroring(PPU_MIRROR_VERT);
} }
void nes_bmc_420y2k_device::device_start() void nes_bmc_420y2k_device::device_start()
@ -2652,54 +2649,45 @@ void nes_bmc_22games_device::write_h(offs_t offset, u8 data)
Games: 64-in-1 Y2K Games: 64-in-1 Y2K
In MESS: Supported NES 2.0: mapper 314
In MAME: Supported.
-------------------------------------------------*/ -------------------------------------------------*/
void nes_bmc_64y2k_device::set_prg() void nes_bmc_64y2k_device::update_banks()
{ {
uint8_t helper1 = m_reg[1] & 0x1f; if (BIT(m_reg[0] & m_reg[1], 7))
uint8_t helper2 = (helper1 << 1) | BIT(m_reg[1], 6); prg32(m_reg[1]);
if (m_reg[0] & 0x80)
{
if (m_reg[1] & 0x80)
prg32(helper1);
else
{
prg16_89ab(helper2);
prg16_cdef(helper2);
}
}
else else
prg16_cdef(helper2);
}
void nes_bmc_64y2k_device::write_l(offs_t offset, uint8_t data)
{
LOG_MMC(("bmc64y2k write_l, offset: %04x, data: %02x\n", offset, data));
offset += 0x100;
switch (offset)
{ {
case 0x1000: u8 bank = m_reg[1] << 1 | BIT(m_reg[1], 6);
case 0x1001: prg16_89ab(bank);
case 0x1002: prg16_cdef(bank | (BIT(m_reg[0], 7) ? 0 : 7));
case 0x1003:
m_reg[offset & 0x03] = data;
set_prg();
chr8(BIT(m_reg[0], 1, 2) | (m_reg[2] << 2), CHRROM);
break;
} }
if (offset == 0x1000) /* write to reg[0] also sets mirroring */
set_nt_mirroring(BIT(data, 5) ? PPU_MIRROR_HORZ : PPU_MIRROR_VERT); chr8(BIT(m_reg[0], 1, 2) | (m_reg[2] << 2), m_chr_source);
set_nt_mirroring(BIT(m_reg[0], 5) ? PPU_MIRROR_HORZ : PPU_MIRROR_VERT);
} }
void nes_bmc_64y2k_device::write_h(offs_t offset, uint8_t data) void nes_bmc_64y2k_device::write_l(offs_t offset, u8 data)
{ {
LOG_MMC(("bmc64y2k write_h, offset: %04x, data: %02x\n", offset, data)); LOG_MMC(("bmc_64y2k write_l, offset: %04x, data: %02x\n", offset, data));
m_reg[3] = data; // reg[3] is currently unused?!? offset += 0x100;
if (offset >= 0x1000)
{
m_reg[offset & m_reg_mask] = data;
update_banks();
}
}
void nes_bmc_64y2k_device::write_h(offs_t offset, u8 data)
{
LOG_MMC(("bmc_64y2k write_h, offset: %04x, data: %02x\n", offset, data));
if (!BIT(m_reg[0], 7))
prg16_89ab(((m_reg[1] << 1) & ~0x07) | (data & 0x07));
} }
/*------------------------------------------------- /*-------------------------------------------------

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@ -798,10 +798,10 @@ class nes_bmc_64y2k_device : public nes_nrom_device
{ {
public: public:
// construction/destruction // construction/destruction
nes_bmc_64y2k_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); nes_bmc_64y2k_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
virtual void write_l(offs_t offset, uint8_t data) override; virtual void write_l(offs_t offset, u8 data) override;
virtual void write_h(offs_t offset, uint8_t data) override; virtual void write_h(offs_t offset, u8 data) override;
virtual void pcb_reset() override; virtual void pcb_reset() override;
@ -810,8 +810,9 @@ protected:
virtual void device_start() override; virtual void device_start() override;
private: private:
void set_prg(); void update_banks();
uint8_t m_reg[4]; u8 m_reg[4];
u8 m_reg_mask;
}; };