From edd08a30a4b09ae435efa8f4553319280754b7e4 Mon Sep 17 00:00:00 2001 From: AJR Date: Thu, 12 Mar 2020 23:13:47 -0400 Subject: canons80: Hook up LCDC and some RAM; work around undumped internal ROM this most likely boots from (nw) --- src/mame/drivers/canon_s80.cpp | 47 +++++++++++++++++++++++++++++++++++------- 1 file changed, 40 insertions(+), 7 deletions(-) diff --git a/src/mame/drivers/canon_s80.cpp b/src/mame/drivers/canon_s80.cpp index 50ba5881c03..7e2aa68a4dc 100644 --- a/src/mame/drivers/canon_s80.cpp +++ b/src/mame/drivers/canon_s80.cpp @@ -11,14 +11,15 @@ * known issues: * - memory-map is uncertain * - maincpu clock is guessed - * - still need to hookup the Hitachi HD44780 LCD Controller * - still lacks description of the keyboard inputs * - as well as a "paper" device to plot the output of the dot matrix print head */ #include "emu.h" #include "cpu/m6800/m6801.h" -//#include "video/hd44780.h" +#include "video/hd44780.h" +#include "emupal.h" +#include "screen.h" class canons80_state : public driver_device { @@ -27,16 +28,30 @@ public: : driver_device(mconfig, type, tag) { } - void init_canons80(); void canons80(machine_config &config); + void init_canons80(); + +private: + HD44780_PIXEL_UPDATE(pixel_update); + void canons80_map(address_map &map); }; +HD44780_PIXEL_UPDATE(canons80_state::pixel_update) +{ + if (pos < 16) + bitmap.pix16(line * 8 + y, pos * 6 + x) = state; +} + void canons80_state::canons80_map(address_map &map) { - map(0x0000, 0x7fff).ram(); - map(0x8000, 0xffff).rom(); + map(0x0000, 0x001f).m("maincpu", FUNC(hd6301x0_cpu_device::m6801_io)); + map(0x0040, 0x00ff).ram(); + map(0x0100, 0x07ff).ram(); + map(0x2000, 0x2001).rw("lcdc", FUNC(hd44780_device::read), FUNC(hd44780_device::write)); + map(0x4000, 0x7fff).rom().region("external", 0x4000); + map(0xf000, 0xffff).rom().region("maincpu", 0); } void canons80_state::canons80(machine_config &config) @@ -44,6 +59,19 @@ void canons80_state::canons80(machine_config &config) /* basic machine hardware */ hd6301x0_cpu_device &maincpu(HD6301X0(config, "maincpu", 5000000)); /* hd63a01xop 5 MHz guessed: TODO: check on PCB */ maincpu.set_addrmap(AS_PROGRAM, &canons80_state::canons80_map); + + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD)); + screen.set_refresh_hz(50); + screen.set_screen_update("lcdc", FUNC(hd44780_device::screen_update)); + screen.set_size(16*6, 16); + screen.set_visarea(0, 16*6-1, 0, 16-1); + screen.set_palette("palette"); + + hd44780_device &hd44780(HD44780(config, "lcdc")); + hd44780.set_lcd_size(2, 16); + hd44780.set_pixel_update_cb(FUNC(canons80_state::pixel_update)); + + PALETTE(config, "palette").set_entries(2); } void canons80_state::init_canons80() @@ -51,8 +79,13 @@ void canons80_state::init_canons80() } ROM_START( canons80 ) - ROM_REGION( 0x10000, "maincpu", 0 ) /* 6800 code */ - ROM_LOAD( "canon_8735kx_nh4-0029_064.ic6", 0x8000, 0x8000, CRC(b6cd2ff7) SHA1(e47a136300c826e480fac1be7fc090523078a2a6) ) + ROM_REGION( 0x1000, "maincpu", 0 ) + ROM_LOAD( "hd63a1x0p.bin", 0x0000, 0x1000, NO_DUMP ) + ROM_FILL( 0xffe, 1, 0x40 ) + ROM_FILL( 0xfff, 1, 0x00 ) + + ROM_REGION( 0x8000, "external", 0 ) + ROM_LOAD( "canon_8735kx_nh4-0029_064.ic6", 0x0000, 0x8000, CRC(b6cd2ff7) SHA1(e47a136300c826e480fac1be7fc090523078a2a6) ) ROM_END /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ -- cgit v1.2.3