mirror of
https://github.com/holub/mame
synced 2025-04-19 23:12:11 +03:00
hd44102: add intermediate render buffer
This commit is contained in:
hap
parent
0055a33e81
commit
9d08937608
@ -30,7 +30,7 @@ license:CC0
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</software>
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<software name="pokemahj">
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<description>Pokekon Mahjongg</description>
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<description>Pokekon Mahjong</description>
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<year>1984</year>
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<publisher>Epoch</publisher>
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<info name="serial" value="3" />
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@ -54,7 +54,7 @@ license:CC0
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</software>
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<software name="sokoban">
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<description>Soukoban - Store Keepers</description>
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<description>Sokoban - Store Keepers</description>
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<year>1985</year>
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<publisher>Epoch</publisher>
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<info name="serial" value="5" />
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@ -2,7 +2,17 @@
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// copyright-holders:Curt Coder
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/**********************************************************************
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HD44102 Dot Matrix Liquid Crystal Graphic Display Column Driver emulation
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HD44102 Dot Matrix Liquid Crystal Graphic Display Column Driver
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Not to be confused with HD44100.
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Includes 4*50*8bit RAM.
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TODO:
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- properly emulate CS pins if needed? (there's 3, for enabling read and/or write)
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- add BS pin when needed (4-bit mode)
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- busy flag
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- reset state
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- what happens if Y address is invalid? (set to > 49)
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**********************************************************************/
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@ -26,7 +36,6 @@
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#define CONTROL_X_ADDRESS_MASK 0xc0
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#define CONTROL_DISPLAY_START_PAGE 0x3e
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#define STATUS_BUSY 0x80 /* not supported */
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#define STATUS_COUNT_UP 0x40
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#define STATUS_DISPLAY_OFF 0x20
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@ -37,28 +46,6 @@
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DEFINE_DEVICE_TYPE(HD44102, hd44102_device, "hd44102", "Hitachi HD44102 LCD Controller")
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//**************************************************************************
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// INLINE HELPERS
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//**************************************************************************
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//-------------------------------------------------
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// count_up_or_down -
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//-------------------------------------------------
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inline void hd44102_device::count_up_or_down()
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{
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if (m_status & STATUS_COUNT_UP)
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{
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if (++m_y > 49) m_y = 0;
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}
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else
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{
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if (--m_y < 0) m_y = 49;
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}
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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@ -67,13 +54,10 @@ inline void hd44102_device::count_up_or_down()
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// hd44102_device - constructor
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//-------------------------------------------------
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hd44102_device::hd44102_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: device_t(mconfig, HD44102, tag, owner, clock),
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device_video_interface(mconfig, *this),
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m_cs2(0),
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m_page(0),
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m_x(0),
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m_y(0)
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hd44102_device::hd44102_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) :
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device_t(mconfig, HD44102, tag, owner, clock),
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m_sx(0),
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m_sy(0)
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{
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}
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@ -84,17 +68,26 @@ hd44102_device::hd44102_device(const machine_config &mconfig, const char *tag, d
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void hd44102_device::device_start()
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{
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// zerofill
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m_status = 0;
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m_output = 0;
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m_page = 0;
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m_x = 0;
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m_y = 0;
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memset(m_ram, 0, sizeof(m_ram));
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memset(m_render_buf, 0, sizeof(m_render_buf));
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// register for state saving
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save_item(NAME(m_ram[0]));
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save_item(NAME(m_ram[1]));
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save_item(NAME(m_ram[2]));
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save_item(NAME(m_ram[3]));
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save_item(NAME(m_ram));
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save_item(NAME(m_render_buf));
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save_item(NAME(m_status));
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save_item(NAME(m_output));
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save_item(NAME(m_cs2));
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save_item(NAME(m_page));
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save_item(NAME(m_x));
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save_item(NAME(m_y));
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save_item(NAME(m_sx));
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save_item(NAME(m_sy));
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}
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@ -112,16 +105,9 @@ void hd44102_device::device_reset()
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// read - register read
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//-------------------------------------------------
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uint8_t hd44102_device::read(offs_t offset)
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u8 hd44102_device::read(offs_t offset)
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{
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uint8_t data = 0;
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if (m_cs2)
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{
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data = (offset & 0x01) ? data_r() : status_r();
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}
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return data;
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return (offset & 0x01) ? data_r() : status_r();
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}
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@ -129,12 +115,9 @@ uint8_t hd44102_device::read(offs_t offset)
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// write - register write
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//-------------------------------------------------
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void hd44102_device::write(offs_t offset, uint8_t data)
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void hd44102_device::write(offs_t offset, u8 data)
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{
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if (m_cs2)
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{
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(offset & 0x01) ? data_w(data) : control_w(data);
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}
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(offset & 0x01) ? data_w(data) : control_w(data);
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}
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@ -142,7 +125,7 @@ void hd44102_device::write(offs_t offset, uint8_t data)
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// status_r - status read
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//-------------------------------------------------
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uint8_t hd44102_device::status_r()
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u8 hd44102_device::status_r()
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{
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return m_status;
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}
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@ -152,7 +135,7 @@ uint8_t hd44102_device::status_r()
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// control_w - control write
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//-------------------------------------------------
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void hd44102_device::control_w(uint8_t data)
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void hd44102_device::control_w(u8 data)
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{
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if (m_status & STATUS_BUSY) return;
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@ -209,16 +192,31 @@ void hd44102_device::control_w(uint8_t data)
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}
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//-------------------------------------------------
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// count_up_or_down -
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//-------------------------------------------------
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void hd44102_device::count_up_or_down()
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{
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if (m_status & STATUS_COUNT_UP)
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{
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if (++m_y > 49) m_y = 0;
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}
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else
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{
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if (--m_y < 0) m_y = 49;
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}
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}
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//-------------------------------------------------
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// data_r - data read
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//-------------------------------------------------
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uint8_t hd44102_device::data_r()
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u8 hd44102_device::data_r()
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{
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uint8_t data = m_output;
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u8 data = m_output;
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m_output = m_ram[m_x][m_y];
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count_up_or_down();
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return data;
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@ -229,21 +227,36 @@ uint8_t hd44102_device::data_r()
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// data_w - data write
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//-------------------------------------------------
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void hd44102_device::data_w(uint8_t data)
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void hd44102_device::data_w(u8 data)
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{
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m_ram[m_x][m_y] = data;
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count_up_or_down();
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}
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//-------------------------------------------------
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// cs2_w - chip select 2 write
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// render - render the pixels
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//-------------------------------------------------
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void hd44102_device::cs2_w(int state)
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const u8 *hd44102_device::render()
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{
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m_cs2 = state;
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memset(m_render_buf, 0, sizeof(m_render_buf));
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if (!(m_status & STATUS_DISPLAY_OFF))
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{
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for (int x = 0; x < 50; x++)
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{
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int z = m_page << 3;
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for (int y = 0; y < 32; y++)
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{
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m_render_buf[z * 50 + x] = BIT(m_ram[z >> 3][x], z & 7);
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z = (z + 1) & 0x1f;
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}
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}
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}
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return m_render_buf;
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}
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@ -251,29 +264,21 @@ void hd44102_device::cs2_w(int state)
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// update_screen - update screen
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//-------------------------------------------------
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uint32_t hd44102_device::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
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u32 hd44102_device::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
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{
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for (int y = 0; y < 50; y++)
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const u8 *src = render();
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for (int x = 0; x < 50; x++)
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{
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int z = m_page << 3;
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for (int x = 0; x < 32; x++)
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for (int y = 0; y < 32; y++)
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{
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uint8_t data = m_ram[z / 8][y];
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int sy = m_sy + z;
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int sx = m_sx + y;
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int sx = m_sx + x;
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int sy = m_sy + y;
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if (cliprect.contains(sx, sy))
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{
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int color = (m_status & STATUS_DISPLAY_OFF) ? 0 : BIT(data, z % 8);
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bitmap.pix(sy, sx) = color;
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}
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z++;
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z %= 32;
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bitmap.pix(sy, sx) = src[y * 50 + x];
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}
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}
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return 0;
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}
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@ -2,7 +2,7 @@
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// copyright-holders:Curt Coder
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/**********************************************************************
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HD44102 Dot Matrix Liquid Crystal Graphic Display Column Driver emulation
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HD44102 Dot Matrix Liquid Crystal Graphic Display Column Driver
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**********************************************************************/
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@ -18,30 +18,20 @@
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// ======================> hd44102_device
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class hd44102_device : public device_t,
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public device_video_interface
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class hd44102_device : public device_t
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{
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public:
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// construction/destruction
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template <typename T>
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hd44102_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&screen_tag, int sx, int sy)
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:hd44102_device(mconfig, tag, owner, clock)
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{
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set_screen(std::forward<T>(screen_tag));
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set_offsets(sx, sy);
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}
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hd44102_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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hd44102_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
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// inline configuration helpers
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void set_offsets(int sx, int sy) { m_sx = sx; m_sy = sy; }
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void set_screen_offsets(int sx, int sy) { m_sx = sx; m_sy = sy; } // when using screen_update
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uint8_t read(offs_t offset);
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void write(offs_t offset, uint8_t data);
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u8 read(offs_t offset);
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void write(offs_t offset, u8 data);
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void cs2_w(int state);
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uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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const u8 *render();
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u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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protected:
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// device-level overrides
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@ -49,23 +39,22 @@ protected:
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virtual void device_reset() override;
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private:
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uint8_t status_r();
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void control_w(uint8_t data);
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u8 status_r();
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void control_w(u8 data);
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uint8_t data_r();
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void data_w(uint8_t data);
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void count_up_or_down();
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u8 data_r();
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void data_w(u8 data);
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inline void count_up_or_down();
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u8 m_ram[4][50]; // display memory
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u8 m_render_buf[32 * 50]; // intermediate pixel buffer
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uint8_t m_ram[4][50]; // display memory
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u8 m_status; // status register
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u8 m_output; // output register
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uint8_t m_status; // status register
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uint8_t m_output; // output register
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int m_cs2; // chip select
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int m_page; // display start page
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int m_x; // X address
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int m_y; // Y address
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u8 m_page; // display start page
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int m_x; // X address
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int m_y; // Y address
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int m_sx;
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int m_sy;
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@ -2,12 +2,12 @@
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// copyright-holders:Sandro Ronco
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/***************************************************************************
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Hitachi HD44780 LCD controller
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Hitachi HD44780 LCD controller
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TODO:
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- dump internal CGROM
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- emulate osc pin, determine video timings and busy flag duration from it,
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and if possible, remove m_busy_factor
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TODO:
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- dump internal CGROM
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- emulate osc pin, determine video timings and busy flag duration from it,
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and if possible, remove m_busy_factor
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***************************************************************************/
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@ -2,7 +2,7 @@
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// copyright-holders:Sandro Ronco
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/***************************************************************************
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Hitachi HD44780 LCD controller
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Hitachi HD44780 LCD controller
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***************************************************************************/
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@ -273,7 +273,7 @@ void as12_state::felega(machine_config &config)
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ROM Definitions
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******************************************************************************/
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ROM_START( feleg ) // model 6085
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ROM_START( feleg ) // model 6085, serial 613623xx
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ROM_REGION( 0x10000, "maincpu", 0 )
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ROM_LOAD("feleg.8000", 0x8000, 0x2000, CRC(e9df31e8) SHA1(31c52bb8f75580c82093eb950959c1bc294189a8) ) // TMM2764, no label
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ROM_LOAD("feleg.c000", 0xc000, 0x1000, CRC(bed9c84b) SHA1(c12f39765b054d2ad81f747e698715ad4246806d) ) // "
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@ -25,7 +25,7 @@ Known releases:
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I presume it's an anonymous Hong Kong production. Most of the games too,
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they have no copyright/company info in them. Some of the later games have
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a copyright by Bon Treasure (a Hong Kong company that's also involved with
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Watara SuperVision), so perhaps it's them.
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Watara Supervision), so perhaps it's them.
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TODO:
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- does port B do anything?
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@ -69,6 +69,7 @@ on Joerg Woerner's datamath.org: http://www.datamath.org/IC_List.htm
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@MP0905B TMS0970 1977, Parker Brothers Codename Sector
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*MP0027 TMS1000 1977, Texas Instruments OEM melody chip (used in eg. Chromatronics Chroma-Chime)
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*MP0057 TMS1000 1978, APH Student Speech+ (same ROM contents as TSI Speech+?)
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*MP0121 TMS1000 1979, Waddingtons Compute-A-Tune
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@MP0154 TMS1000 1979, Fonas 2 Player Baseball
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@MP0158 TMS1000 1979, Entex Soccer (6003)
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@MP0163 TMS1000 1979, A-One LSI Match Number/LJN Electronic Concentration
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@ -534,7 +534,8 @@ uint8_t kc85_state::lcd_r(offs_t offset)
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uint8_t data = 0;
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for (uint8_t i = 0; i < 10; i++)
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data |= m_lcdc[i]->read(offset);
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if (BIT(m_keylatch, i))
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data |= m_lcdc[i]->read(offset);
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return data;
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}
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@ -542,7 +543,8 @@ uint8_t kc85_state::lcd_r(offs_t offset)
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void kc85_state::lcd_w(offs_t offset, uint8_t data)
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{
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for (uint8_t i = 0; i < 10; i++)
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m_lcdc[i]->write(offset, data);
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if (BIT(m_keylatch, i))
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m_lcdc[i]->write(offset, data);
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}
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/* Memory Maps */
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@ -949,12 +951,8 @@ void kc85_state::i8155_pa_w(uint8_t data)
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*/
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/* keyboard */
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m_keylatch = (m_keylatch & 0x100) | data;
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/* LCD */
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for (uint8_t i = 0; i < 8; i++)
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m_lcdc[i]->cs2_w(BIT(data, i));
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/* LCD, keyboard */
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m_keylatch = (m_keylatch & 0x300) | data;
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/* RTC */
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m_rtc->c0_w(BIT(data, 0));
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@ -981,12 +979,8 @@ void kc85_state::i8155_pb_w(uint8_t data)
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*/
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/* keyboard */
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m_keylatch = (BIT(data, 0) << 8) | (m_keylatch & 0xff);
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/* LCD */
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m_lcdc[8]->cs2_w(BIT(data, 0));
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m_lcdc[9]->cs2_w(BIT(data, 1));
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/* LCD, keyboard */
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m_keylatch = (data << 8 & 0x300) | (m_keylatch & 0xff);
|
||||
|
||||
/* beeper */
|
||||
m_buzzer = BIT(data, 2);
|
||||
|
||||
@ -45,21 +45,13 @@ void kc85_state::kc85_video(machine_config &config)
|
||||
screen.set_refresh_hz(44);
|
||||
screen.set_screen_update(FUNC(kc85_state::screen_update));
|
||||
screen.set_size(240, 64);
|
||||
screen.set_visarea(0, 240-1, 0, 64-1);
|
||||
screen.set_visarea_full();
|
||||
screen.set_palette("palette");
|
||||
|
||||
PALETTE(config, "palette", FUNC(kc85_state::kc85_palette), 2);
|
||||
|
||||
HD44102(config, m_lcdc[0], 0, SCREEN_TAG, 0, 0);
|
||||
HD44102(config, m_lcdc[1], 0, SCREEN_TAG, 50, 0);
|
||||
HD44102(config, m_lcdc[2], 0, SCREEN_TAG, 100, 0);
|
||||
HD44102(config, m_lcdc[3], 0, SCREEN_TAG, 150, 0);
|
||||
HD44102(config, m_lcdc[4], 0, SCREEN_TAG, 200, 0);
|
||||
HD44102(config, m_lcdc[5], 0, SCREEN_TAG, 0, 32);
|
||||
HD44102(config, m_lcdc[6], 0, SCREEN_TAG, 50, 32);
|
||||
HD44102(config, m_lcdc[7], 0, SCREEN_TAG, 100, 32);
|
||||
HD44102(config, m_lcdc[8], 0, SCREEN_TAG, 150, 32);
|
||||
HD44102(config, m_lcdc[9], 0, SCREEN_TAG, 200, 32);
|
||||
for (int i = 0; i < 10; i++)
|
||||
HD44102(config, m_lcdc[i]).set_screen_offsets((i % 5) * 50, (i / 5) * 32);
|
||||
|
||||
// MCFG_HD44103_MASTER_ADD("m11", SCREEN_TAG, CAP_P(18), RES_K(100), HD44103_FS_HIGH, HD44103_DUTY_1_32)
|
||||
// MCFG_HD44103_SLAVE_ADD( "m12", "m11", SCREEN_TAG, HD44103_FS_HIGH, HD44103_DUTY_1_32)
|
||||
@ -71,7 +63,7 @@ void tandy200_state::tandy200_video(machine_config &config)
|
||||
screen.set_refresh_hz(80);
|
||||
screen.set_screen_update(FUNC(tandy200_state::screen_update));
|
||||
screen.set_size(240, 128);
|
||||
screen.set_visarea(0, 240-1, 0, 128-1);
|
||||
screen.set_visarea_full();
|
||||
screen.set_palette("palette");
|
||||
|
||||
PALETTE(config, "palette", FUNC(tandy200_state::tandy200_palette), 2);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user