diff options
author | AJR <ajrhacker@users.noreply.github.com> | 2019-07-06 13:55:49 -0400 |
---|---|---|
committer | AJR <ajrhacker@users.noreply.github.com> | 2019-07-06 13:55:49 -0400 |
commit | 79892df49875d3e090d555c22423837617f3702c (patch) | |
tree | f26d8674f546826ec5cfb929e732c42d9ff9aaed | |
parent | d5f741d8a3dcb10333c837ddd356d08b55a72f3f (diff) |
is482: Add CRTC and screen devices (nw)
-rw-r--r-- | src/mame/drivers/is48x.cpp | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/src/mame/drivers/is48x.cpp b/src/mame/drivers/is48x.cpp index c3513f1dc17..0bdd2809890 100644 --- a/src/mame/drivers/is48x.cpp +++ b/src/mame/drivers/is48x.cpp @@ -10,8 +10,8 @@ #include "cpu/i86/i186.h" #include "cpu/bcp/dp8344.h" #include "machine/eeprompar.h" -//#include "video/mc6845.h" -//#include "screen.h" +#include "video/mc6845.h" +#include "screen.h" class is48x_state : public driver_device { @@ -20,11 +20,14 @@ public: : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_bcp(*this, "bcp") + , m_crtc(*this, "crtc") { } void is482(machine_config &config); private: + MC6845_UPDATE_ROW(update_row); + void mem_map(address_map &map); void io_map(address_map &map); void bcp_inst_map(address_map &map); @@ -32,8 +35,13 @@ private: required_device<cpu_device> m_maincpu; required_device<dp8344_device> m_bcp; + required_device<mc6845_device> m_crtc; }; +MC6845_UPDATE_ROW(is48x_state::update_row) +{ +} + void is48x_state::mem_map(address_map &map) { map(0x00000, 0x07fff).ram(); // W24257S-70LL @@ -47,8 +55,8 @@ void is48x_state::mem_map(address_map &map) void is48x_state::io_map(address_map &map) { map(0x8005, 0x8005).nopw(); - //map(0x8080, 0x8080).w("crtc", FUNC(mc6845_device::address_w)); - //map(0x8081, 0x8081).rw("crtc", FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w)); + map(0x8080, 0x8080).w(m_crtc, FUNC(mc6845_device::address_w)); + map(0x8081, 0x8081).rw(m_crtc, FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w)); map(0x8101, 0x8101).nopr(); map(0x8180, 0x8180).rw(m_bcp, FUNC(dp8344_device::cmd_r), FUNC(dp8344_device::cmd_w)); } @@ -78,7 +86,15 @@ void is48x_state::is482(machine_config &config) EEPROM_28256(config, "eeprom"); // AT28C256 - //HD6845S(config, "crtc", CRTC_CLOCK); // HD46505SP-1 + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); + screen.set_raw(60_MHz_XTAL / 2, 770, 0, 560, 532, 0, 475); // FIXME: vertical rate is supposed to be 75 Hz + screen.set_screen_update("crtc", FUNC(mc6845_device::screen_update)); + + HD6845S(config, m_crtc, 60_MHz_XTAL / 28); // HD46505SP-1 + m_crtc->set_char_width(14); // guess + m_crtc->set_screen("screen"); + m_crtc->set_show_border_area(false); + m_crtc->set_update_row_callback(FUNC(is48x_state::update_row), this); } ROM_START(is482) // "IS-488-A" on case |