diff options
Diffstat (limited to 'src/mame/machine/esqvfd.c')
-rw-r--r-- | src/mame/machine/esqvfd.c | 405 |
1 files changed, 405 insertions, 0 deletions
diff --git a/src/mame/machine/esqvfd.c b/src/mame/machine/esqvfd.c new file mode 100644 index 00000000000..e103ef6e972 --- /dev/null +++ b/src/mame/machine/esqvfd.c @@ -0,0 +1,405 @@ +// license:BSD-3-Clause +// copyright-holders:R. Belmont +/* + Ensoniq Vacuum Fluorescent Displays (VFDs) + Emulation by R. Belmont +*/ + +#include "esqvfd.h" +#include "esq1by22.lh" +#include "esq2by40.lh" + +const device_type ESQ1x22 = &device_creator<esq1x22_t>; +const device_type ESQ2x40 = &device_creator<esq2x40_t>; +const device_type ESQ2x40_SQ1 = &device_creator<esq2x40_sq1_t>; + +// adapted from bfm_bd1, rearranged to work with ASCII data used by the Ensoniq h/w +static const UINT16 font[]= +{ // FEDC BA98 7654 3210 + 0x0000, // 0000 0000 0000 0000 (space) + 0x0000, // 0000 0000 0000 0000 ! (not defined) + 0x0009, // 0000 0000 0000 1001 ". + 0xC62A, // 1100 0110 0010 1010 #. + 0xC62D, // 1100 0110 0010 1101 $. + 0x0000, // 0000 0000 0000 0000 % (not defined) + 0x0000, // 0000 0000 0000 0000 & (not defined) + 0x0040, // 0000 0000 1000 0000 '. + 0x0880, // 0000 1000 1000 0000 (. + 0x0050, // 0000 0000 0101 0000 ). + 0xCCD8, // 1100 1100 1101 1000 *. + 0xC408, // 1100 0100 0000 1000 +. + 0x0000, // 0000 0000 0000 0000 , (not defined) + 0xC000, // 1100 0000 0000 0000 -. + 0x1000, // 0001 0000 0000 0000 . + 0x0090, // 0000 0000 1001 0000 / + 0x22B7, // 0010 0010 1011 0111 0. + 0x0408, // 0000 0100 0000 1000 1. + 0xE206, // 1110 0010 0000 0110 2. + 0x4226, // 0100 0010 0010 0110 3. + 0xC023, // 1100 0000 0010 0011 4. + 0xC225, // 1100 0010 0010 0101 5. + 0xE225, // 1110 0010 0010 0101 6. + 0x0026, // 0000 0000 0010 0110 7. + 0xE227, // 1110 0010 0010 0111 8. + 0xC227, // 1100 0010 0010 0111 9. + 0x0000, // 0000 0000 0000 0000 : (not defined) + 0x0000, // 0000 0000 0000 0000 ; (not defined) + 0x0290, // 0000 0010 1001 0000 <. + 0xC200, // 1100 0010 0000 0000 =. + 0x0A40, // 0000 1010 0100 0000 >. + 0x0000, // 0000 0000 0000 0000 ? (not defined) + 0xA626, // 1010 0110 0010 0110 @. + 0xE027, // 1110 0000 0010 0111 A. + 0x462E, // 0100 0110 0010 1110 B. + 0x2205, // 0010 0010 0000 0101 C. + 0x062E, // 0000 0110 0010 1110 D. + 0xA205, // 1010 0010 0000 0101 E. + 0xA005, // 1010 0000 0000 0101 F. + 0x6225, // 0110 0010 0010 0101 G. + 0xE023, // 1110 0000 0010 0011 H. + 0x060C, // 0000 0110 0000 1100 I. + 0x2222, // 0010 0010 0010 0010 J. + 0xA881, // 1010 1000 1000 0001 K. + 0x2201, // 0010 0010 0000 0001 L. + 0x20E3, // 0010 0000 1110 0011 M. + 0x2863, // 0010 1000 0110 0011 N. + 0x2227, // 0010 0010 0010 0111 O. + 0xE007, // 1110 0000 0000 0111 P. + 0x2A27, // 0010 1010 0010 0111 Q. + 0xE807, // 1110 1000 0000 0111 R. + 0xC225, // 1100 0010 0010 0101 S. + 0x040C, // 0000 0100 0000 1100 T. + 0x2223, // 0010 0010 0010 0011 U. + 0x2091, // 0010 0000 1001 0001 V. + 0x2833, // 0010 1000 0011 0011 W. + 0x08D0, // 0000 1000 1101 0000 X. + 0x04C0, // 0000 0100 1100 0000 Y. + 0x0294, // 0000 0010 1001 0100 Z. + 0x2205, // 0010 0010 0000 0101 [. + 0x0840, // 0000 1000 0100 0000 \. + 0x0226, // 0000 0010 0010 0110 ]. + 0x0810, // 0000 1000 0001 0000 ^. + 0x0200, // 0000 0010 0000 0000 _ + 0x0040, // 0000 0000 0100 0000 ` + 0xE027, // 1110 0000 0010 0111 A. + 0x462E, // 0100 0110 0010 1110 B. + 0x2205, // 0010 0010 0000 0101 C. + 0x062E, // 0000 0110 0010 1110 D. + 0xA205, // 1010 0010 0000 0101 E. + 0xA005, // 1010 0000 0000 0101 F. + 0x6225, // 0110 0010 0010 0101 G. + 0xE023, // 1110 0000 0010 0011 H. + 0x060C, // 0000 0110 0000 1100 I. + 0x2222, // 0010 0010 0010 0010 J. + 0xA881, // 1010 1000 1000 0001 K. + 0x2201, // 0010 0010 0000 0001 L. + 0x20E3, // 0010 0000 1110 0011 M. + 0x2863, // 0010 1000 0110 0011 N. + 0x2227, // 0010 0010 0010 0111 O. + 0xE007, // 1110 0000 0000 0111 P. + 0x2A27, // 0010 1010 0010 0111 Q. + 0xE807, // 1110 1000 0000 0111 R. + 0xC225, // 1100 0010 0010 0101 S. + 0x040C, // 0000 0100 0000 1100 T. + 0x2223, // 0010 0010 0010 0011 U. + 0x2091, // 0010 0000 1001 0001 V. + 0x2833, // 0010 1000 0011 0011 W. + 0x08D0, // 0000 1000 1101 0000 X. + 0x04C0, // 0000 0100 1100 0000 Y. + 0x0294, // 0000 0010 1001 0100 Z. + 0x2205, // 0010 0010 0000 0101 [. + 0x0408, // 0000 0100 0000 1000 | + 0x0226, // 0000 0010 0010 0110 ]. + 0x0810, // 0000 1000 0001 0000 ~. + 0x0000, // 0000 0000 0000 0000 (DEL) +}; + +esqvfd_t::esqvfd_t(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source) : + device_t(mconfig, type, name, tag, owner, clock, shortname, source) +{ +} + +void esqvfd_t::device_start() +{ +} + +void esqvfd_t::device_reset() +{ + m_cursx = m_cursy = 0; + m_savedx = m_savedy = 0; + m_curattr = AT_NORMAL; + m_lastchar = 0; + memset(m_chars, 0, sizeof(m_chars)); + memset(m_attrs, 0, sizeof(m_attrs)); + memset(m_dirty, 1, sizeof(m_attrs)); +} + +void esqvfd_t::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) +{ +} + +// why isn't the font just stored in this order? +UINT32 esqvfd_t::conv_segments(UINT16 segin) +{ + UINT32 segout = 0; + + if ( segin & 0x0004 ) segout |= 0x0001; + if ( segin & 0x0002 ) segout |= 0x0002; + if ( segin & 0x0020 ) segout |= 0x0004; + if ( segin & 0x0200 ) segout |= 0x0008; + if ( segin & 0x2000 ) segout |= 0x0010; + if ( segin & 0x0001 ) segout |= 0x0020; + if ( segin & 0x8000 ) segout |= 0x0040; + if ( segin & 0x4000 ) segout |= 0x0080; + if ( segin & 0x0008 ) segout |= 0x0100; + if ( segin & 0x0400 ) segout |= 0x0200; + if ( segin & 0x0010 ) segout |= 0x0400; + if ( segin & 0x0040 ) segout |= 0x0800; + if ( segin & 0x0080 ) segout |= 0x1000; + if ( segin & 0x0800 ) segout |= 0x2000; + if ( segin & 0x1000 ) segout |= 0x4000; + + return segout; +} + +// generic display update; can override from child classes if not good enough +void esqvfd_t::update_display() +{ + for (int row = 0; row < m_rows; row++) + { + for (int col = 0; col < m_cols; col++) + { + if (m_dirty[row][col]) + { + UINT32 segdata = conv_segments(font[m_chars[row][col]]); + + // force bottom bar on all underlined chars + if (m_attrs[row][col] & AT_UNDERLINE) + { + segdata |= 0x0008; + } + + output_set_indexed_value("vfd", (row*m_cols) + col, segdata); + + m_dirty[row][col] = 0; + } + } + } +} + +/* 2x40 VFD display used in the ESQ-1, VFX-SD, SD-1, and others */ + +static MACHINE_CONFIG_FRAGMENT(esq2x40) + MCFG_DEFAULT_LAYOUT(layout_esq2by40) +MACHINE_CONFIG_END + +machine_config_constructor esq2x40_t::device_mconfig_additions() const +{ + return MACHINE_CONFIG_NAME( esq2x40 ); +} + +void esq2x40_t::write_char(int data) +{ + // ESQ-1 sends (cursor move) 0xfa 0xYY to mark YY characters as underlined at the current cursor location + if (m_lastchar == 0xfa) + { + for (int i = 0; i < data; i++) + { + m_attrs[m_cursy][m_cursx + i] |= AT_UNDERLINE; + m_dirty[m_cursy][m_cursx + i] = 1; + } + + m_lastchar = 0; + update_display(); + return; + } + + m_lastchar = data; + + if ((data >= 0x80) && (data < 0xd0)) + { + m_cursy = ((data & 0x7f) >= 40) ? 1 : 0; + m_cursx = (data & 0x7f) % 40; + } + else if (data >= 0xd0) + { + switch (data) + { + case 0xd0: // blink start + m_curattr = AT_BLINK; + break; + + case 0xd1: // blink stop (cancel all attribs on VFX+) + m_curattr = 0; //&= ~AT_BLINK; + break; + + case 0xd3: // start underline + m_curattr |= AT_UNDERLINE; + break; + + case 0xd6: // clear screen + m_cursx = m_cursy = 0; + memset(m_chars, 0, sizeof(m_chars)); + memset(m_attrs, 0, sizeof(m_attrs)); + memset(m_dirty, 1, sizeof(m_dirty)); + break; + + case 0xf5: // save cursor position + m_savedx = m_cursx; + m_savedy = m_cursy; + break; + + case 0xf6: // restore cursor position + m_cursx = m_savedx; + m_cursy = m_savedy; + m_curattr = m_attrs[m_cursy][m_cursx]; + break; + + default: +// printf("Unknown control code %02x\n", data); + break; + } + } + else + { + if ((data >= 0x20) && (data <= 0x5f)) + { + m_chars[m_cursy][m_cursx] = data - ' '; + m_attrs[m_cursy][m_cursx] = m_curattr; + m_dirty[m_cursy][m_cursx] = 1; + m_cursx++; + + if (m_cursx >= 39) + { + m_cursx = 39; + } + } + } + + update_display(); +} + +esq2x40_t::esq2x40_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : esqvfd_t(mconfig, ESQ2x40, "Ensoniq 2x40 VFD", tag, owner, clock, "esq2x40", __FILE__) +{ + m_rows = 2; + m_cols = 40; +} + +/* 1x22 display from the VFX (not right, but it'll do for now) */ + +static MACHINE_CONFIG_FRAGMENT(esq1x22) + MCFG_DEFAULT_LAYOUT(layout_esq1by22) +MACHINE_CONFIG_END + +machine_config_constructor esq1x22_t::device_mconfig_additions() const +{ + return MACHINE_CONFIG_NAME( esq1x22 ); +} + +void esq1x22_t::write_char(int data) +{ + if (data >= 0x60) + { + switch (data) + { + case 'f': // clear screen + m_cursx = m_cursy = 0; + memset(m_chars, 0, sizeof(m_chars)); + memset(m_attrs, 0, sizeof(m_attrs)); + memset(m_dirty, 1, sizeof(m_dirty)); + break; + + default: + printf("Unhandled control code %02x\n", data); + break; + } + } + else + { + if ((data >= 0x20) && (data <= 0x5f)) + { + m_chars[0][m_cursx] = data - ' '; + m_dirty[0][m_cursx] = 1; + m_cursx++; + + if (m_cursx >= 23) + { + m_cursx = 23; + } + } + } + + update_display(); +} + +esq1x22_t::esq1x22_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : esqvfd_t(mconfig, ESQ1x22, "Ensoniq 1x22 VFD", tag, owner, clock, "esq1x22", __FILE__) +{ + m_rows = 1; + m_cols = 22; +} + +/* SQ-1 display, I think it's really an LCD but we'll deal with it for now */ +machine_config_constructor esq2x40_sq1_t::device_mconfig_additions() const +{ + return MACHINE_CONFIG_NAME( esq2x40 ); // we use the normal 2x40 layout +} + +void esq2x40_sq1_t::write_char(int data) +{ + if (data == 0x09) // musical note + { + data = '^'; // approximate for now + } + + if (m_Wait87Shift) + { + m_cursy = (data >> 4) & 0xf; + m_cursx = data & 0xf; + m_Wait87Shift = false; + } + else if (m_Wait88Shift) + { + m_Wait88Shift = false; + } + else if ((data >= 0x20) && (data <= 0x7f)) + { + m_chars[m_cursy][m_cursx] = data - ' '; + m_attrs[m_cursy][m_cursx] = m_curattr; + m_dirty[m_cursy][m_cursx] = 1; + m_cursx++; + + if (m_cursx >= 39) + { + m_cursx = 39; + } + + update_display(); + } + else if (data == 0x83) + { + m_cursx = m_cursy = 0; + memset(m_chars, 0, sizeof(m_chars)); + memset(m_attrs, 0, sizeof(m_attrs)); + memset(m_dirty, 1, sizeof(m_dirty)); + } + else if (data == 0x87) + { + m_Wait87Shift = true; + } + else if (data == 0x88) + { + m_Wait88Shift = true; + } + else + { +// printf("SQ-1 unhandled display char %02x\n", data); + } +} + +esq2x40_sq1_t::esq2x40_sq1_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : esqvfd_t(mconfig, ESQ2x40_SQ1, "Ensoniq 2x40 VFD (SQ-1 variant)", tag, owner, clock, "esq2x40_sq1", __FILE__) +{ + m_rows = 2; + m_cols = 40; + m_Wait87Shift = false; + m_Wait88Shift = false; +} |