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attache: implemented some text attributes.

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This commit is contained in:
mahlemiut 2013-06-03 02:44:07 +00:00
parent 16e49c4c2b
commit cb34ca297b
1 changed files with 72 additions and 7 deletions
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79
src/mess/drivers/attache.c
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@ -217,23 +217,88 @@ private:
UINT8 m_memmap;
};
// Attributes (based on schematics):
// bit 0 = ALT
// bit 1 = RW
// bit 2 = BKG (reverse?)
// bit 3 = brightness
// bit 4 = double-size (width)
// bit 5 = underline
// bit 6 = superscript
// bit 7 = subscript (superscript and subscript combined produces strikethrough)
UINT32 attache_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
UINT8 x,y,bit,scan,data;
UINT8 dbl_mode = 0; // detemines which half of character to display when using double size attribute,
// as it can start on either odd or even character cells.
// TODO: Graphics RAM
for(y=0;y<bitmap.height()/10;y++) // lines
{
for(x=0;x<bitmap.width()/8;x++) // columns
{
UINT8 ch = m_char_ram[(y*128)+x];
if(m_attr_ram[(y*128)+x] & 0x10) // double-size
dbl_mode++;
else
dbl_mode = 0;
for(scan=0;scan<10;scan++) // 10 scanlines per line
{
data = m_char_rom->base()[ch*16+scan];
if((m_attr_ram[(y*128)+x] & 0xc0) != 0xc0) // if not strikethrough
{
if(m_attr_ram[(y*128)+x] & 0x40) // superscript
{
if(scan >= 5)
data = 0;
else
data = m_char_rom->base()[ch*16+(scan*2)+1];
}
if(m_attr_ram[(y*128)+x] & 0x80) // subscript
{
if(scan < 5)
data = 0;
else
data = m_char_rom->base()[ch*16+((scan-5)*2)+1];
}
}
if((m_attr_ram[(y*128)+x] & 0x20) && scan == 9) // underline
data = 0xff;
if((m_attr_ram[(y*128)+x] & 0xc0) == 0xc0 && scan == 3) // strikethrough
data = 0xff;
if(m_attr_ram[(y*128)+x] & 0x04) // reverse
data = ~data;
if(m_attr_ram[(y*128)+x] & 0x10) // double-size
{
UINT8 newdata = 0;
if(dbl_mode & 1)
{
newdata = (data & 0x80) | ((data & 0x80) >> 1)
| ((data & 0x40) >> 1) | ((data & 0x40) >> 2)
| ((data & 0x20) >> 2) | ((data & 0x20) >> 3)
| ((data & 0x10) >> 3) | ((data & 0x10) >> 4);
}
else
{
newdata = ((data & 0x08) << 4) | ((data & 0x08) << 3)
| ((data & 0x04) << 3) | ((data & 0x04) << 2)
| ((data & 0x02) << 2) | ((data & 0x02) << 1)
| ((data & 0x01) << 1) | (data & 0x01);
}
data = newdata;
}
for(bit=0;bit<8;bit++) // 8 pixels per character
{
if(x >= cliprect.min_x && x < cliprect.max_x && y >= cliprect.min_y && y < cliprect.max_y)
bitmap.pix32(y*10+scan,x*8+bit) = (BIT(data,7-bit)) ? 0xffffff : 0x000000;
UINT16 xpos = x*8+bit;
UINT16 ypos = y*10+scan;
UINT32 fg = 0x7f7f7f;
UINT32 bg = 0x000000;
if(m_attr_ram[(y*128)+x] & 0x08) // brightness
fg = 0xffffff;
bitmap.pix32(ypos,xpos) = (BIT(data,7-bit)) ? fg : bg;
}
}
}
@ -340,11 +405,11 @@ READ8_MEMBER(attache_state::pio_portA_r)
break;
case PIO_SEL_5832_WRITE:
ret = m_rtc->data_r(space,0);
logerror("CMOS: read %02x (write)\n",ret);
logerror("RTC: read %02x (write)\n",ret);
break;
case PIO_SEL_5832_READ:
ret = m_rtc->data_r(space,0);
logerror("CMOS: read %02x\n",ret);
logerror("RTC: read %02x\n",ret);
break;
case PIO_SEL_5101_WRITE:
ret = m_cmos_ram[m_cmos_select] & 0x0f;
@ -389,11 +454,11 @@ void attache_state::operation_strobe(address_space& space, UINT8 data)
case PIO_SEL_5832_WRITE:
m_rtc->address_w((data & 0xf0) >> 4);
m_rtc->data_w(space,0,data & 0x0f);
logerror("CMOS: write %01x to %01x\n",data & 0x0f,(data & 0xf0) >> 4);
logerror("RTC: write %01x to %01x\n",data & 0x0f,(data & 0xf0) >> 4);
break;
case PIO_SEL_5832_READ:
m_rtc->address_w((data & 0xf0) >> 4);
logerror("CMOS: write %01x to %01x (read)\n",data & 0x0f,(data & 0xf0) >> 4);
logerror("RTC: write %01x to %01x (read)\n",data & 0x0f,(data & 0xf0) >> 4);
break;
case PIO_SEL_5101_WRITE:
m_cmos_select = (m_cmos_select & 0xf0) | ((data & 0xf0) >> 4);