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pc100: boot dos (nw)

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This commit is contained in:
cracyc 2018-05-29 22:03:31 -05:00
parent 7582515ced
commit 0b64e08eac
1 changed files with 25 additions and 12 deletions
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37
src/mame/drivers/pc100.cpp
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@ -135,6 +135,7 @@ private:
struct{
uint8_t shift;
uint16_t mask;
uint16_t cmd;
uint16_t vstart;
uint8_t addr;
uint8_t reg[8];
@ -178,15 +179,25 @@ uint32_t pc100_state::screen_update_pc100(screen_device &screen, bitmap_ind16 &b
{
for(xi=0;xi<16;xi++)
{
for(pen_i=0;pen_i<4;pen_i++)
pen[pen_i] = (m_vram[count+pen_i*0x10000] >> xi) & 1;
if(m_crtc.cmd != 0xffff)
{
for(pen_i=0;pen_i<4;pen_i++)
pen[pen_i] = (m_vram[count+pen_i*0x10000] >> xi) & 1;
dot = 0;
for(pen_i=0;pen_i<4;pen_i++)
dot |= pen[pen_i]<<pen_i;
dot = 0;
for(pen_i=0;pen_i<4;pen_i++)
dot |= pen[pen_i]<<pen_i;
if(y < 512 && x*16+xi < 768) /* TODO: safety check */
bitmap.pix16(y, x*16+xi) = m_palette->pen(dot);
if(y < 512 && x*16+xi < 768) /* TODO: safety check */
bitmap.pix16(y, x*16+xi) = m_palette->pen(dot);
}
else
{
dot = (m_vram[count] >> xi) & 1;
if(y < 512 && x*16+xi < 768) /* TODO: safety check */
bitmap.pix16(y, x*16+xi) = m_palette->pen(dot ? 15 : 0);
}
}
count++;
@ -276,13 +287,13 @@ WRITE8_MEMBER( pc100_state::pc100_output_w )
{
m_timer_mode = (data & 0x18) >> 3;
m_beeper->set_state(((data & 0x40) >> 6) ^ 1);
printf("%02x\n",data & 0xc0);
//printf("%02x\n",data & 0xc0);
}
}
WRITE8_MEMBER( pc100_state::pc100_tc_w )
{
machine().device<upd765a_device>("upd765")->tc_w(data & 0x40);
m_fdc->tc_w(data & 0x40);
}
READ8_MEMBER( pc100_state::pc100_shift_r )
@ -319,7 +330,7 @@ WRITE8_MEMBER( pc100_state::pc100_crtc_addr_w )
WRITE8_MEMBER( pc100_state::pc100_crtc_data_w )
{
m_crtc.reg[m_crtc.addr] = data;
printf("%02x %02x\n",m_crtc.addr,data);
//printf("%02x %02x\n",m_crtc.addr,data);
}
@ -342,7 +353,8 @@ void pc100_state::pc100_io(address_map &map)
map(0x3a, 0x3a).w(this, FUNC(pc100_state::pc100_crtc_data_w)); //crtc data reg
map(0x3c, 0x3f).rw(this, FUNC(pc100_state::pc100_vs_vreg_r), FUNC(pc100_state::pc100_vs_vreg_w)).umask16(0x00ff); //crtc vertical start position
map(0x40, 0x5f).ram().w(m_palette, FUNC(palette_device::write16)).share("palette");
// AM_RANGE(0x60, 0x61) crtc command (16-bit wide)
map(0x60, 0x61).r(read16_delegate([this](address_space &s, offs_t o, u8 mm) { return m_crtc.cmd; }, "pc100_crtc_cmd_r")).
w(write16_delegate([this](address_space &s, offs_t o, u16 d, u8 mm) { m_crtc.cmd = d; }, "pc100_crtc_cmd_w"));
map(0x80, 0x81).rw(this, FUNC(pc100_state::pc100_kanji_r), FUNC(pc100_state::pc100_kanji_w));
map(0x82, 0x83).nopw(); //kanji-related?
map(0x84, 0x87).nopw(); //kanji "strobe" signal 0/1
@ -514,7 +526,8 @@ WRITE8_MEMBER( pc100_state::rtc_porta_w )
---- ---x write
*/
m_fdc->subdevice<floppy_connector>("0")->get_device()->mon_w(!(data & 0x20));
if(data != 0) // work around 8255 behavior that resets the whole chip on mode write
m_fdc->subdevice<floppy_connector>("0")->get_device()->mon_w(!(data & 0x20));
m_rtc->write_w((data >> 0) & 1);
m_rtc->read_w((data >> 1) & 1);
m_rtc->cs1_w((data >> 2) & 1);