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(MESS) fc100 : added semigraphic6 mode, fixed shift for paste.

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This commit is contained in:
Robbbert 2014-04-21 13:13:25 +00:00
parent 39e73d5495
commit 879fd7d0c3
1 changed files with 25 additions and 12 deletions
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37
src/mess/drivers/fc100.c
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@ -6,10 +6,20 @@ Goldstar FC-100 (FC stands for Famicom)
2014/04/20 Skeleton driver.
Known chips: M5C6847P, AY-3-8910, 8251. XTALS 7.15909, 4.9152
No manuals or schematics available.
Shift-Run to BREAK out of CLOAD.
Cassette uses the uart.
Test of semigraphic 6
10 SCREEN 2:CLS
20 FOR I=0 TO 360
30 PSET(128+SIN(I)*90,91-COS(I)*90), 1
40 NEXT
TODO:
- Cassette frequencies are guesses, need to be verified
- Hookup Graphics modes and colours
@ -38,7 +48,7 @@ public:
fc100_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_s68047p(*this, "s68047p")
, m_vdg(*this, "vdg")
, m_p_videoram(*this, "videoram")
, m_cass(*this, "cassette")
, m_uart(*this, "uart")
@ -78,7 +88,7 @@ private:
UINT8 m_kbd_count;
required_device<cpu_device> m_maincpu;
required_device<s68047_device> m_s68047p;
required_device<mc6847_base_device> m_vdg;
required_shared_ptr<UINT8> m_p_videoram;
required_device<cassette_image_device> m_cass;
required_device<i8251_device> m_uart;
@ -126,7 +136,7 @@ ADDRESS_MAP_END
static INPUT_PORTS_START( fc100 )
PORT_START("00")
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LALT) PORT_NAME("Graph") // does nothing
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_NAME("Shift")
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_NAME("Shift") PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_NAME("Ctrl")
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE PORT_NAME("Caps")
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_NAME("[") PORT_CHAR('[') PORT_CHAR('{')
@ -255,12 +265,12 @@ WRITE8_MEMBER( fc100_state::ay_port_a_w )
m_gm0 = BIT(data, 3);
m_css = m_ag;
m_s68047p->ag_w( m_ag ? ASSERT_LINE : CLEAR_LINE );
m_s68047p->gm2_w( m_gm2 ? ASSERT_LINE : CLEAR_LINE );
m_s68047p->gm1_w( m_gm1 ? ASSERT_LINE : CLEAR_LINE );
m_s68047p->gm0_w( m_gm0 ? ASSERT_LINE : CLEAR_LINE );
m_s68047p->css_w( m_css ? ASSERT_LINE : CLEAR_LINE );
m_s68047p->hack_black_becomes_blue( BIT(data, 1) );
m_vdg->ag_w( m_ag ? ASSERT_LINE : CLEAR_LINE );
m_vdg->gm2_w( m_gm2 ? ASSERT_LINE : CLEAR_LINE );
m_vdg->gm1_w( m_gm1 ? ASSERT_LINE : CLEAR_LINE );
m_vdg->gm0_w( m_gm0 ? ASSERT_LINE : CLEAR_LINE );
m_vdg->css_w( m_css ? ASSERT_LINE : CLEAR_LINE );
m_vdg->hack_black_becomes_blue( BIT(data, 1) );
}
@ -305,7 +315,10 @@ READ8_MEMBER( fc100_state::mc6847_videoram_r )
UINT8 data = m_p_videoram[offset];
UINT8 attr = m_p_videoram[offset+0x200];
m_s68047p->inv_w( BIT( attr, 0 ));
// unknown bits 1,2,4,7
m_vdg->inv_w( BIT( attr, 0 ));
m_vdg->css_w( BIT( attr, 1)); // guess
m_vdg->as_w( BIT( attr, 6 ));
return data;
}
@ -468,8 +481,8 @@ static MACHINE_CONFIG_START( fc100, fc100_state )
MCFG_CPU_IO_MAP(fc100_io)
/* video hardware */
MCFG_MC6847_ADD("s68047p", S68047, XTAL_7_15909MHz/3, fc100_mc6847_interface ) // Clock not verified
MCFG_SCREEN_MC6847_NTSC_ADD("screen", "s68047p")
MCFG_MC6847_ADD("vdg", MC6847_NTSC, XTAL_7_15909MHz/3, fc100_mc6847_interface ) // Clock not verified
MCFG_SCREEN_MC6847_NTSC_ADD("screen", "vdg")
MCFG_GFXDECODE_ADD("gfxdecode", "f4palette", fc100)
MCFG_PALETTE_ADD_MONOCHROME_AMBER("f4palette")