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sbrain: Add DP8350 CRTC (nw)

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This commit is contained in:
AJR 2018-09-25 01:36:58 -04:00
parent fad9283ecc
commit f675b78ae4
1 changed files with 6 additions and 7 deletions
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13
src/mame/drivers/sbrain.cpp
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@ -46,7 +46,7 @@ To Do:
#include "machine/wd_fdc.h" #include "machine/wd_fdc.h"
#include "machine/timer.h" #include "machine/timer.h"
#include "sound/beep.h" #include "sound/beep.h"
//#include "video/dp8350.h" #include "video/dp8350.h"
#include "emupal.h" #include "emupal.h"
#include "screen.h" #include "screen.h"
#include "speaker.h" #include "speaker.h"
@ -62,6 +62,7 @@ public:
, m_p_videoram(*this, "videoram") , m_p_videoram(*this, "videoram")
, m_p_chargen(*this, "chargen") , m_p_chargen(*this, "chargen")
, m_beep(*this, "beeper") , m_beep(*this, "beeper")
, m_crtc(*this, "crtc")
, m_u0(*this, "uart0") , m_u0(*this, "uart0")
, m_u1(*this, "uart1") , m_u1(*this, "uart1")
, m_ppi(*this, "ppi") , m_ppi(*this, "ppi")
@ -113,6 +114,7 @@ private:
required_shared_ptr<u8> m_p_videoram; required_shared_ptr<u8> m_p_videoram;
required_region_ptr<u8> m_p_chargen; required_region_ptr<u8> m_p_chargen;
required_device<beep_device> m_beep; required_device<beep_device> m_beep;
required_device<dp8350_device> m_crtc;
required_device<i8251_device> m_u0; required_device<i8251_device> m_u0;
required_device<i8251_device> m_u1; required_device<i8251_device> m_u1;
required_device<i8255_device> m_ppi; required_device<i8255_device> m_ppi;
@ -217,6 +219,8 @@ d7 : reverse video
*/ */
WRITE8_MEMBER( sbrain_state::ppi_pa_w ) WRITE8_MEMBER( sbrain_state::ppi_pa_w )
{ {
m_crtc->refresh_control(BIT(data, 6));
m_porta = data; m_porta = data;
} }
@ -516,7 +520,6 @@ u32 sbrain_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, con
} }
/* Display a scanline of a character */ /* Display a scanline of a character */
*p++ = BIT(gfx, 7);
*p++ = BIT(gfx, 6); *p++ = BIT(gfx, 6);
*p++ = BIT(gfx, 5); *p++ = BIT(gfx, 5);
*p++ = BIT(gfx, 4); *p++ = BIT(gfx, 4);
@ -546,16 +549,12 @@ MACHINE_CONFIG_START(sbrain_state::sbrain)
/* video hardware */ /* video hardware */
MCFG_SCREEN_ADD_MONOCHROME("screen", RASTER, rgb_t::amber()) MCFG_SCREEN_ADD_MONOCHROME("screen", RASTER, rgb_t::amber())
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
MCFG_SCREEN_UPDATE_DRIVER(sbrain_state, screen_update) MCFG_SCREEN_UPDATE_DRIVER(sbrain_state, screen_update)
MCFG_SCREEN_SIZE(640, 240)
MCFG_SCREEN_VISIBLE_AREA(0, 639, 0, 239)
MCFG_SCREEN_PALETTE("palette") MCFG_SCREEN_PALETTE("palette")
MCFG_PALETTE_ADD_MONOCHROME("palette") MCFG_PALETTE_ADD_MONOCHROME("palette")
//MCFG_DEVICE_ADD("crtc", DP8350, 10.92_MHz_XTAL) DP8350(config, m_crtc, 10.92_MHz_XTAL).set_screen("screen");
/* sound hardware */ /* sound hardware */
SPEAKER(config, "mono").front_center(); SPEAKER(config, "mono").front_center();