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duet16: palette (nw)

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This commit is contained in:
cracyc 2018-02-20 10:17:21 -06:00
parent 1a19ef98fe
commit 1b14b550b5
1 changed files with 35 additions and 2 deletions
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37
src/mame/drivers/duet16.cpp
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@ -27,6 +27,7 @@ public:
m_fdc(*this, "fdc"), m_fdc(*this, "fdc"),
m_dmac(*this, "dmac"), m_dmac(*this, "dmac"),
m_fd(*this, "fdc:%u", 0), m_fd(*this, "fdc:%u", 0),
m_pal(*this, "palette"),
m_chrrom(*this, "char"), m_chrrom(*this, "char"),
m_vram(*this, "vram") m_vram(*this, "vram")
{ } { }
@ -41,6 +42,7 @@ private:
DECLARE_READ8_MEMBER(dmapg_r); DECLARE_READ8_MEMBER(dmapg_r);
DECLARE_WRITE8_MEMBER(dmapg_w); DECLARE_WRITE8_MEMBER(dmapg_w);
DECLARE_WRITE8_MEMBER(fdcctrl_w); DECLARE_WRITE8_MEMBER(fdcctrl_w);
DECLARE_WRITE8_MEMBER(pal_w);
DECLARE_WRITE_LINE_MEMBER(hrq_w); DECLARE_WRITE_LINE_MEMBER(hrq_w);
MC6845_UPDATE_ROW(crtc_update_row); MC6845_UPDATE_ROW(crtc_update_row);
void duet16_io(address_map &map); void duet16_io(address_map &map);
@ -50,6 +52,7 @@ private:
required_device<upd765a_device> m_fdc; required_device<upd765a_device> m_fdc;
required_device<am9517a_device> m_dmac; required_device<am9517a_device> m_dmac;
required_device_array<floppy_connector, 2> m_fd; required_device_array<floppy_connector, 2> m_fd;
required_device<palette_device> m_pal;
required_memory_region m_chrrom; required_memory_region m_chrrom;
required_shared_ptr<u16> m_vram; required_shared_ptr<u16> m_vram;
u8 m_dmapg; u8 m_dmapg;
@ -119,6 +122,7 @@ ADDRESS_MAP_START(duet16_state::duet16_mem)
AM_RANGE(0xf80c0, 0xf80c1) AM_DEVREADWRITE8("crtc", h46505_device, status_r, address_w, 0x00ff) AM_RANGE(0xf80c0, 0xf80c1) AM_DEVREADWRITE8("crtc", h46505_device, status_r, address_w, 0x00ff)
AM_RANGE(0xf80c2, 0xf80c3) AM_DEVREADWRITE8("crtc", h46505_device, register_r, register_w, 0x00ff) AM_RANGE(0xf80c2, 0xf80c3) AM_DEVREADWRITE8("crtc", h46505_device, register_r, register_w, 0x00ff)
AM_RANGE(0xf8100, 0xf8103) AM_DEVICE8("fdc", upd765a_device, map, 0x00ff) AM_RANGE(0xf8100, 0xf8103) AM_DEVICE8("fdc", upd765a_device, map, 0x00ff)
AM_RANGE(0xf8160, 0xf818f) AM_WRITE8(pal_w, 0xffff)
AM_RANGE(0xf8220, 0xf8221) AM_WRITE8(fdcctrl_w, 0x00ff) AM_RANGE(0xf8220, 0xf8221) AM_WRITE8(fdcctrl_w, 0x00ff)
AM_RANGE(0xfe000, 0xfffff) AM_ROM AM_REGION("rom", 0) AM_RANGE(0xfe000, 0xfffff) AM_ROM AM_REGION("rom", 0)
ADDRESS_MAP_END ADDRESS_MAP_END
@ -126,9 +130,15 @@ ADDRESS_MAP_END
ADDRESS_MAP_START(duet16_state::duet16_io) ADDRESS_MAP_START(duet16_state::duet16_io)
ADDRESS_MAP_END ADDRESS_MAP_END
WRITE8_MEMBER(duet16_state::pal_w)
{
int entry = (BIT(offset, 0) ? 2 : 0) | (BIT(offset, 5) ? 0 : 4);
m_pal->set_pen_color(entry, pal1bit(BIT(data, 1)), pal1bit(BIT(data, 2)), pal1bit(BIT(data, 0)));
m_pal->set_pen_color(entry + 1, pal1bit(BIT(data, 5)), pal1bit(BIT(data, 6)), pal1bit(BIT(data, 4)));
}
MC6845_UPDATE_ROW(duet16_state::crtc_update_row) MC6845_UPDATE_ROW(duet16_state::crtc_update_row)
{ {
const rgb_t fg = 0xffffffff;
const rgb_t bg = 0; const rgb_t bg = 0;
u32 *p = &bitmap.pix32(y); u32 *p = &bitmap.pix32(y);
@ -136,8 +146,9 @@ MC6845_UPDATE_ROW(duet16_state::crtc_update_row)
{ {
u16 offset = (ma + i) & 0x1fff; u16 offset = (ma + i) & 0x1fff;
u8 chr = m_vram[offset] & 0xff; u8 chr = m_vram[offset] & 0xff;
//u8 attr = m_vram[offset] >> 8; u8 attr = m_vram[offset] >> 8;
u8 data = m_chrrom->base()[(chr * 16) + ra]; u8 data = m_chrrom->base()[(chr * 16) + ra];
rgb_t fg = m_pal->pen_color(attr & 7);
*p = (data & 0x80) ? fg : bg; p++; *p = (data & 0x80) ? fg : bg; p++;
*p = (data & 0x40) ? fg : bg; p++; *p = (data & 0x40) ? fg : bg; p++;
@ -150,6 +161,24 @@ MC6845_UPDATE_ROW(duet16_state::crtc_update_row)
} }
} }
static const gfx_layout duet16_charlayout =
{
8, 16, /* 8 x 16 characters */
512, /* 512 characters */
1, /* 1 bits per pixel */
{ 0 }, /* no bitplanes */
/* x offsets */
{ STEP8(0,1) },
/* y offsets */
{ STEP16(0,8) },
8*16 /* every char takes 8 bytes */
};
static GFXDECODE_START(duet16)
GFXDECODE_ENTRY( "char", 0x0000, duet16_charlayout, 0, 1 )
GFXDECODE_END
static SLOT_INTERFACE_START( duet16_floppies ) static SLOT_INTERFACE_START( duet16_floppies )
SLOT_INTERFACE( "525qd", FLOPPY_525_QD ) SLOT_INTERFACE( "525qd", FLOPPY_525_QD )
SLOT_INTERFACE_END SLOT_INTERFACE_END
@ -214,6 +243,10 @@ MACHINE_CONFIG_START(duet16_state::duet16)
MCFG_MC6845_CHAR_WIDTH(8) MCFG_MC6845_CHAR_WIDTH(8)
MCFG_MC6845_UPDATE_ROW_CB(duet16_state, crtc_update_row) MCFG_MC6845_UPDATE_ROW_CB(duet16_state, crtc_update_row)
MCFG_PALETTE_ADD("palette", 8)
MCFG_GFXDECODE_ADD("gfxdecode", "palette", duet16)
MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_SIZE(640, 480) MCFG_SCREEN_SIZE(640, 480)