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(nw) unior: cleaned

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This commit is contained in:
Robbbert 2020-06-07 02:25:57 +10:00
parent 8b021e8bf3
commit 4bc23448b0
1 changed files with 73 additions and 41 deletions
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114
src/mame/drivers/unior.cpp
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@ -56,59 +56,64 @@ public:
unior_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_rom(*this, "maincpu")
, m_ram(*this, "mainram")
, m_pit(*this, "pit")
, m_dma(*this, "dma")
, m_uart(*this, "uart")
, m_cass(*this, "cassette")
, m_palette(*this, "palette")
, m_p_chargen(*this, "chargen")
, m_p_vram(*this, "vram")
, m_io_keyboard(*this, "X%d", 0)
{ }
void unior(machine_config &config);
private:
void vram_w(offs_t offset, uint8_t data);
void scroll_w(uint8_t data);
uint8_t ppi0_b_r();
void ppi0_b_w(uint8_t data);
uint8_t ppi1_a_r();
uint8_t ppi1_b_r();
uint8_t ppi1_c_r();
void ppi1_a_w(uint8_t data);
void ppi1_c_w(uint8_t data);
void vram_w(offs_t offset, u8 data);
void scroll_w(u8 data);
u8 ppi0_b_r();
void ppi0_b_w(u8 data);
u8 ppi1_a_r();
u8 ppi1_b_r();
u8 ppi1_c_r();
void ppi1_a_w(u8 data);
void ppi1_c_w(u8 data);
DECLARE_WRITE_LINE_MEMBER(hrq_w);
DECLARE_WRITE_LINE_MEMBER(ctc_z1_w);
void unior_palette(palette_device &palette) const;
uint8_t dma_r(offs_t offset);
u8 dma_r(offs_t offset);
I8275_DRAW_CHARACTER_MEMBER(display_pixels);
TIMER_DEVICE_CALLBACK_MEMBER(kansas_r);
void io_map(address_map &map);
void mem_map(address_map &map);
uint8_t m_4c;
uint8_t m_4e;
u8 m_4c;
u8 m_4e;
bool m_txe, m_txd, m_rts, m_casspol;
u8 m_cass_data[4];
virtual void machine_reset() override;
virtual void machine_start() override;
std::unique_ptr<u8[]> m_vram;
memory_passthrough_handler *m_rom_shadow_tap;
required_device<cpu_device> m_maincpu;
required_region_ptr<u8> m_rom;
required_shared_ptr<u8> m_ram;
required_device<pit8253_device> m_pit;
required_device<i8257_device> m_dma;
required_device<i8251_device> m_uart;
required_device<cassette_image_device> m_cass;
required_device<palette_device> m_palette;
required_region_ptr<u8> m_p_chargen;
required_region_ptr<u8> m_p_vram;
required_ioport_array<11> m_io_keyboard;
};
void unior_state::mem_map(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0xf7ff).ram();
map(0xf800, 0xffff).rom().w(FUNC(unior_state::vram_w)); // main video
map(0x0000, 0xf7ff).ram().share("mainram");
map(0xf800, 0xffff).rom().region("maincpu", 0).w(FUNC(unior_state::vram_w)); // main video
}
void unior_state::io_map(address_map &map)
@ -245,7 +250,7 @@ INPUT_PORTS_END
*************************************************/
/* F4 Character Displayer */
static const gfx_layout unior_charlayout =
static const gfx_layout charlayout =
{
8, 8, /* 8 x 8 characters */
256, /* 256 characters */
@ -259,25 +264,25 @@ static const gfx_layout unior_charlayout =
};
static GFXDECODE_START( gfx_unior )
GFXDECODE_ENTRY( "chargen", 0x0000, unior_charlayout, 0, 1 )
GFXDECODE_ENTRY( "chargen", 0x0000, charlayout, 0, 1 )
GFXDECODE_END
void unior_state::vram_w(offs_t offset, uint8_t data)
void unior_state::vram_w(offs_t offset, u8 data)
{
m_p_vram[offset] = data;
m_vram[offset] = data;
}
// pulses a 1 to scroll
void unior_state::scroll_w(uint8_t data)
void unior_state::scroll_w(u8 data)
{
if (data)
memmove(m_p_vram, m_p_vram+80, 24*80);
memmove(m_vram.get(), m_vram.get()+80, 24*80);
}
I8275_DRAW_CHARACTER_MEMBER(unior_state::display_pixels)
{
const rgb_t *palette = m_palette->palette()->entry_list_raw();
uint8_t gfx = m_p_chargen[(linecount & 7) | (charcode << 3)];
u8 gfx = m_p_chargen[(linecount & 7) | (charcode << 3)];
if (vsp)
gfx = 0;
@ -288,7 +293,7 @@ I8275_DRAW_CHARACTER_MEMBER(unior_state::display_pixels)
if (rvv)
gfx ^= 0xff;
for(uint8_t i=0;i<6;i++)
for(u8 i=0;i<6;i++)
bitmap.pix32(y, x + i) = palette[BIT(gfx, 5-i) ? (hlgt ? 2 : 1) : 0];
}
@ -322,7 +327,7 @@ TIMER_DEVICE_CALLBACK_MEMBER( unior_state::kansas_r )
m_cass_data[1]++;
m_cass_data[2]++;
uint8_t cass_ws = (m_cass->input() > +0.04) ? 1 : 0;
u8 cass_ws = (m_cass->input() > +0.04) ? 1 : 0;
if (cass_ws != m_cass_data[0])
{
@ -353,22 +358,22 @@ WRITE_LINE_MEMBER(unior_state::ctc_z1_w)
}
uint8_t unior_state::ppi0_b_r()
u8 unior_state::ppi0_b_r()
{
return 0;
}
// Bit 4 - cassette relay?
void unior_state::ppi0_b_w(uint8_t data)
void unior_state::ppi0_b_w(u8 data)
{
}
uint8_t unior_state::ppi1_a_r()
u8 unior_state::ppi1_a_r()
{
return m_4c;
}
uint8_t unior_state::ppi1_b_r()
u8 unior_state::ppi1_b_r()
{
u8 t = m_4c & 15;
if (t < 11)
@ -377,12 +382,12 @@ uint8_t unior_state::ppi1_b_r()
return 0xff;
}
uint8_t unior_state::ppi1_c_r()
u8 unior_state::ppi1_c_r()
{
return m_4e;
}
void unior_state::ppi1_a_w(uint8_t data)
void unior_state::ppi1_a_w(u8 data)
{
m_4c = data;
}
@ -394,7 +399,7 @@ d5 = unknown
d6 = connect to A7 of the palette prom
d7 = not used
*/
void unior_state::ppi1_c_w(uint8_t data)
void unior_state::ppi1_c_w(u8 data)
{
m_4e = data;
m_pit->write_gate2(BIT(data, 4));
@ -406,12 +411,12 @@ void unior_state::ppi1_c_w(uint8_t data)
*************************************************/
uint8_t unior_state::dma_r(offs_t offset)
u8 unior_state::dma_r(offs_t offset)
{
if (offset < 0xf800)
return m_maincpu->space(AS_PROGRAM).read_byte(offset);
else
return m_p_vram[offset & 0x7ff];
return m_vram[offset & 0x7ff];
}
WRITE_LINE_MEMBER( unior_state::hrq_w )
@ -429,11 +434,40 @@ WRITE_LINE_MEMBER( unior_state::hrq_w )
void unior_state::machine_reset()
{
m_maincpu->set_state_int(i8080_cpu_device::I8085_PC, 0xF800);
m_uart->write_cts(0);
m_uart->write_dsr(0);
m_casspol = 0;
m_cass_data[0] = m_cass_data[1] = 0;
address_space &program = m_maincpu->space(AS_PROGRAM);
program.install_rom(0x0000, 0x07ff, m_rom); // do it here for F3
m_rom_shadow_tap = program.install_read_tap(0xf800, 0xffff, "rom_shadow_r",[this](offs_t offset, u8 &data, u8 mem_mask)
{
if (!machine().side_effects_disabled())
{
// delete this tap
m_rom_shadow_tap->remove();
// reinstall ram over the rom shadow
m_maincpu->space(AS_PROGRAM).install_ram(0x0000, 0x07ff, m_ram);
}
// return the original data
return data;
});
}
void unior_state::machine_start()
{
m_vram = make_unique_clear<u8[]>(0x0800);
save_pointer(NAME(m_vram), 0x0800);
save_item(NAME(m_4c));
save_item(NAME(m_4e));
save_item(NAME(m_txe));
save_item(NAME(m_txd));
save_item(NAME(m_rts));
save_item(NAME(m_casspol));
save_item(NAME(m_cass_data));
}
void unior_state::unior(machine_config &config)
@ -502,18 +536,16 @@ void unior_state::unior(machine_config &config)
/* ROM definition */
ROM_START( unior )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "unior.rom.d30", 0xf800, 0x0800, CRC(23a347e8) SHA1(2ef3134e2f4a696c3b52a145fa5a2d4c3487194b))
ROM_REGION( 0x0800, "maincpu", 0 )
ROM_LOAD( "unior.rom.d30", 0x0000, 0x0800, CRC(23a347e8) SHA1(2ef3134e2f4a696c3b52a145fa5a2d4c3487194b))
ROM_REGION( 0x0840, "chargen", ROMREGION_ERASEFF )
ROM_REGION( 0x0840, "chargen", 0 )
ROM_LOAD( "unior.fnt.d5", 0x0000, 0x0800, CRC(4f654828) SHA1(8c0ac11ea9679a439587952e4908940b67c4105e))
// according to schematic this should be 256 bytes
ROM_LOAD( "palette.rom.d9", 0x0800, 0x0040, BAD_DUMP CRC(b4574ceb) SHA1(f7a82c61ab137de8f6a99b0c5acf3ac79291f26a))
ROM_REGION( 0x0800, "vram", ROMREGION_ERASEFF )
ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 19??, unior, 0, 0, unior, unior, unior_state, empty_init, "<unknown>", "Unior", MACHINE_WRONG_COLORS )
COMP( 19??, unior, 0, 0, unior, unior, unior_state, empty_init, "<unknown>", "Unior", MACHINE_WRONG_COLORS | MACHINE_SUPPORTS_SAVE )