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peoplepc: graphics (nw)

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This commit is contained in:
cracyc 2020-02-21 11:16:09 -06:00
parent 21dae89c14
commit efc6bca341
1 changed files with 21 additions and 12 deletions
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33
src/mame/drivers/peoplepc.cpp
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@ -30,6 +30,7 @@ public:
m_flop0(*this, "upd765:0"),
m_flop1(*this, "upd765:1"),
m_dmac(*this, "i8257"),
m_crtc(*this, "h46505"),
m_gfxdecode(*this, "gfxdecode"),
m_gvram(*this, "gvram"),
m_cvram(*this, "cvram"),
@ -48,6 +49,7 @@ private:
required_device<floppy_connector> m_flop0;
required_device<floppy_connector> m_flop1;
required_device<i8257_device> m_dmac;
required_device<hd6845s_device> m_crtc;
required_device<gfxdecode_device> m_gfxdecode;
required_shared_ptr<uint16_t> m_gvram;
required_shared_ptr<uint16_t> m_cvram;
@ -59,6 +61,7 @@ private:
DECLARE_WRITE_LINE_MEMBER(tty_clock_tick_w);
DECLARE_WRITE_LINE_MEMBER(kbd_clock_tick_w);
DECLARE_WRITE8_MEMBER(dmapg_w);
DECLARE_WRITE8_MEMBER(p7c_w);
DECLARE_WRITE_LINE_MEMBER(tc_w);
DECLARE_WRITE_LINE_MEMBER(hrq_w);
DECLARE_READ8_MEMBER(memory_read_byte);
@ -67,7 +70,7 @@ private:
image_init_result floppy_load(floppy_image_device *dev);
void floppy_unload(floppy_image_device *dev);
uint8_t m_dma0pg;
uint8_t m_dma0pg, m_p7c;
void peoplepc_io(address_map &map);
void peoplepc_map(address_map &map);
@ -95,13 +98,12 @@ MC6845_UPDATE_ROW(peoplepc_state::update_row)
for(i = 0; i < x_count; i++)
{
if(0)
if(BIT(m_p7c, 1))
{
uint16_t offset = ((ma | (ra << 1)) << 4) + i;
uint8_t data = m_gvram[offset] >> (offset & 1 ? 8 : 0);
uint16_t data = m_gvram[((((ma / 40) * 16) + ra) * 64) + i];
for(j = 8; j >= 0; j--)
bitmap.pix32(y, (i * 8) + j) = palette[( data & 1 << j ) ? 1 : 0];
for(j = 15; j >= 0; j--)
bitmap.pix32(y, (i * 16) + j) = palette[BIT(data, j)];
}
else
{
@ -112,7 +114,7 @@ MC6845_UPDATE_ROW(peoplepc_state::update_row)
if((data & 0x800) && (ra > 14))
chr = 0xff;
for(j = 0; j < 8; j++)
bitmap.pix32(y, (i * 8) + j) = palette[(chr & (1 << j)) ? 1 : 0];
bitmap.pix32(y, (i * 8) + j) = palette[BIT(chr, j)];
}
}
}
@ -148,6 +150,12 @@ WRITE8_MEMBER(peoplepc_state::dmapg_w)
m_dma0pg = data;
}
WRITE8_MEMBER(peoplepc_state::p7c_w)
{
m_p7c = data;
m_crtc->set_hpixels_per_column(BIT(data, 1) ? 16 : 8);
}
WRITE_LINE_MEMBER(peoplepc_state::tc_w)
{
m_fdc->tc_w(state);
@ -224,6 +232,7 @@ void peoplepc_state::peoplepc_io(address_map &map)
map(0x006c, 0x006c).w("h46505", FUNC(mc6845_device::address_w));
map(0x006e, 0x006e).rw("h46505", FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w));
map(0x0070, 0x0070).w(FUNC(peoplepc_state::dmapg_w));
map(0x007c, 0x007c).w(FUNC(peoplepc_state::p7c_w));
}
static void peoplepc_floppies(device_slot_interface &device)
@ -282,11 +291,11 @@ void peoplepc_state::olypeopl(machine_config &config)
GFXDECODE(config, m_gfxdecode, m_palette, gfxdecode_device::empty);
PALETTE(config, m_palette, palette_device::MONOCHROME);
mc6845_device &crtc(HD6845S(config, "h46505", XTAL(22'000'000)/8)); // HD46505SP according to User's Guide
crtc.set_screen("screen");
crtc.set_show_border_area(false);
crtc.set_char_width(8);
crtc.set_update_row_callback(FUNC(peoplepc_state::update_row));
HD6845S(config, m_crtc, XTAL(22'000'000)/8); // HD46505SP according to User's Guide
m_crtc->set_screen("screen");
m_crtc->set_show_border_area(false);
m_crtc->set_char_width(8);
m_crtc->set_update_row_callback(FUNC(peoplepc_state::update_row));
I8257(config, m_dmac, XTAL(14'745'600)/3);
m_dmac->out_hrq_cb().set(FUNC(peoplepc_state::hrq_w));