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ti99: Added new cartridge type paged7 for TI-CALC.
This commit is contained in:
Michael Zapf
parent
d28c2b807e
commit
9814aba49e
3 changed files with 103 additions and 2 deletions
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@ -5020,4 +5020,21 @@
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</part>
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</software>
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<!-- Softlist entry for TI-CALC. -->
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<software name="ticalc">
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<description>TI-CALC</description>
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<year>1983</year>
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<publisher>Texas Instruments</publisher>
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<info name="serial" value="PHM 3213"/>
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<part name="cart" interface="ti99_cart">
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<feature name="pcb" value="paged7" />
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<dataarea name="grom" size="0x2000">
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<rom name="phm3213_g3.bin" size="0x1800" crc="d68df037" sha1="fce2fb8928018492d30256588d3040ef5c654faa" offset="0x0000" />
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</dataarea>
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<dataarea name="rom" size="0x4000">
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<rom name="phm3213_r1.bin" size="0x2000" crc="0451b0f9" sha1="fce0f47d07cdda537ae5c9b9c831978423da854f" offset="0x0000" />
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<rom name="phm3213_r2.bin" size="0x2000" crc="80749ad6" sha1="018b9c847645dd682cad1113e3d7a4c9f231f685" offset="0x2000" />
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</dataarea>
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</part>
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</software>
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</softwarelist>
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@ -49,7 +49,8 @@ enum
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PCB_PAGED378,
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PCB_PAGED377,
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PCB_PAGEDCRU,
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PCB_GROMEMU
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PCB_GROMEMU,
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PCB_PAGED7
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};
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static const pcb_type pcbdefs[] =
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@ -65,6 +66,7 @@ static const pcb_type pcbdefs[] =
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{ PCB_PAGED377, "paged377" },
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{ PCB_PAGEDCRU, "pagedcru" },
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{ PCB_GROMEMU, "gromemu" },
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{ PCB_PAGED7, "paged7" },
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{ 0, nullptr}
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};
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@ -77,6 +79,7 @@ static const pcb_type sw_pcbdefs[] =
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{ PCB_SUPER, "super" },
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{ PCB_MBX, "mbx" },
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{ PCB_GROMEMU, "gromemu" },
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{ PCB_PAGED7, "paged7" },
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{ 0, nullptr}
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};
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@ -257,6 +260,10 @@ image_init_result ti99_cartridge_device::call_load()
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if (TRACE_CONFIG) logerror("Paged PCB 16K\n");
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m_pcb = std::make_unique<ti99_paged16k_cartridge>();
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break;
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case PCB_PAGED7:
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if (TRACE_CONFIG) logerror("Paged PCB 7000\n");
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m_pcb = std::make_unique<ti99_paged7_cartridge>();
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break;
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case PCB_MINIMEM:
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if (TRACE_CONFIG) logerror("Minimem PCB\n");
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m_pcb = std::make_unique<ti99_minimem_cartridge>();
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@ -860,7 +867,7 @@ WRITE8_MEMBER(ti99_super_cartridge::cruwrite)
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| |= RAM =| |
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|=== ROM bank 0 ==| |===== ROM bank 1 ====| 6ffe = 01
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| |
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|===== ROM bank 3 ====| 6ffe = 02
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|===== ROM bank 2 ====| 6ffe = 02
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|===== ROM bank 3 ====| 6ffe = 03
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@ -934,6 +941,74 @@ WRITE8_MEMBER(ti99_mbx_cartridge::write)
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}
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}
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/*****************************************************************************
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Cartridge type: paged7
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GROM: up to 5 GROMs (sockets for a maximum of 3 GROMs, but may be stacked)
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ROM: up to 16 KiB (in up to 2 banks of 8KiB each)
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ROM mapper: 7000, 7002, 7004, 7006
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GROM space
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6000 77ff 8000 97ff a000 b7ff c000 d7ff e000 f7ff
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|== GROM3 ==|...|== GROM4 ==|...|== GROM5 ==|...|== GROM6 ==|...|== GROM7 ==|
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ROM space
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6000 7000 7fff
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| | |
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| |===== ROM bank 0 ====| write to 7000
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| | |
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|=== ROM bank 0 =========|===== ROM bank 1 ====| write to 7002
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|===== ROM bank 2 ====| write to 7004
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|===== ROM bank 3 ====| write to 7006
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This is very similar to the MBX scheme, only that the bank switch is
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done by writing to the first words of the 7000 space. Also, there is no
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additional RAM.
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******************************************************************************/
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/* Read function for the paged7 cartridge. */
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READ8Z_MEMBER(ti99_paged7_cartridge::readz)
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{
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if (m_romspace_selected)
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{
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if (m_rom_ptr!=nullptr)
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{
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if ((offset & 0x1000)==0x0000) // 6000 area
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*value = m_rom_ptr[offset];
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else // 7000 area
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*value = m_rom_ptr[(offset & 0x0fff) | (m_rom_page << 12)];
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if (TRACE_READ) m_cart->logerror("%04x(%04x) -> %02x\n", offset + 0x6000, offset | (m_rom_page<<13), *value);
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}
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}
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else
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{
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gromreadz(space, offset, value, mem_mask);
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}
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}
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/* Write function for the paged7 cartridge. */
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WRITE8_MEMBER(ti99_paged7_cartridge::write)
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{
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if (m_romspace_selected)
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{
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// 0111 0000 0000 0110
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if ((offset & 0x1ff9) == 0x1000) // Mapper
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{
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// Valid values are 0, 1, 2, 3
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m_rom_page = (offset>>1) & 3;
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if (TRACE_BANKSWITCH) if ((offset & 1)==0) m_cart->logerror("Set ROM page = %d (writing to %04x)\n", m_rom_page, (offset | 0x6000));
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}
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}
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else
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{
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gromwrite(space, offset, data, mem_mask);
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}
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}
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/*****************************************************************************
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Cartridge type: paged379i
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This cartridge consists of one 16 KiB, 32 KiB, 64 KiB, or 128 KiB EEPROM
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@ -272,6 +272,15 @@ public:
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DECLARE_WRITE8_MEMBER(write) override;
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};
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/*********** Paged7 cartridge (late carts) ********************/
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class ti99_paged7_cartridge : public ti99_cartridge_pcb
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{
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public:
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DECLARE_READ8Z_MEMBER(readz) override;
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DECLARE_WRITE8_MEMBER(write) override;
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};
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/********************** Mini Memory ***********************************/
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class ti99_minimem_cartridge : public ti99_cartridge_pcb
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