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upd7220: alternate drawing direction by line in gchrd (nw)

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vt240: error--
This commit is contained in:
cracyc 2016-07-10 21:19:15 -05:00
parent e04ed6de3f
commit e48008b516
2 changed files with 18 additions and 6 deletions
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23
src/devices/video/upd7220.cpp
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@ -993,22 +993,35 @@ void upd7220_device::draw_char(int x, int y)
LOG(("uPD7220 char check: %d %d %02x %08x %d %d %02x\n",x,y,m_figs.m_dir,m_ead,m_figs.m_d,m_figs.m_dc,m_figs.m_figure_type));
isize = m_figs.m_d & 0x3ff;
/* Guess: D has presumably upper bits for ysize, QX-10 relies on this (TODO: check this on any real HW) */
psize = ((m_figs.m_d & 0x400) + m_figs.m_dc) + 1;
/* QX10 may require upper bits for psize, VT240 requires the opposite */
isize = m_figs.m_d;
psize = m_figs.m_dc + 1;
for(int pi = 0; pi < psize; pi++)
{
tile_data = (m_ra[((psize-1-pi) & 7) | 8] << 8) | m_ra[((psize-1-pi) & 7) | 8];
for(int pz = 0; pz <= m_gchr; pz++)
{
for(int ii = 0, curpixel = 0; ii < isize; ii++)
int ii = 0, curpixel = 0;
if(pi & 1)
{
ii = isize - 1;
curpixel = (isize * (m_gchr + 1)) - 1;
}
while(pi & 1 ? ii >= 0 : ii < isize)
{
for(int iz = 0; iz <= m_gchr; iz++)
{
draw_pixel(x + (curpixel * x_dir[m_figs.m_dir]), y + (curpixel * y_dir[m_figs.m_dir]), ii, tile_data);
curpixel++;
if(pi & 1)
curpixel--;
else
curpixel++;
}
if(pi & 1)
ii--;
else
ii++;
}
if(m_figs.m_figure_type == 2)
{

1
src/mame/drivers/vt240.cpp
View File

@ -372,7 +372,6 @@ WRITE16_MEMBER(vt240_state::vram_w)
UINT8 out = 0, ifore = BIT(m_lu, (i ? 5 : 4)), iback = BIT(m_lu, (i ? 3 : 2));
for(int j = 0; j < 8; j++)
out |= BIT(chr, j) ? (ifore << j) : (iback << j);
logerror("%x %x %x %x %x\n", chr, out, data, ifore, iback);
if(!BIT(m_reg0, 3))
out = (out & ~m_mask) | (mem & m_mask);
else