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(MESS) iqunlimz: fixed 80 columns mode. (nw)

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This commit is contained in:
Sandro Ronco 2014-02-02 16:19:23 +00:00
parent a1cf018fe5
commit d1adf78645
1 changed files with 15 additions and 4 deletions
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19
src/mess/drivers/socrates.c
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@ -811,11 +811,13 @@ UINT32 iqunlim_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap,
}
// text layer
bool mode_80 = m_video_regs[0x02] & 0x02; // 80 chars mode
int line_len = mode_80 ? 80 : 40;
for (int y=0; y<28; y++)
{
for (int x=0; x<40; x++)
for (int x=0; x<line_len; x++)
{
UINT8 c = m_videoram[0x8400 + (y - 1) * 0x40 + x];
UINT8 c = m_videoram[0x8400 + (y - 1) * (mode_80 ? 0x80 : 0x40) + x];
UINT8 *gfx = &m_videoram[0x8000 + (c & 0x7f) * 8];
for (int cy=0; cy<8; cy++)
@ -827,10 +829,12 @@ UINT32 iqunlim_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap,
UINT8 col1 = get_color(0x0f, py);
UINT8 data = 0;
if (y > 0 && y < 26)
if (BIT(m_video_regs[0x02],4) && m_video_regs[0x00] == x && m_video_regs[0x01] == ((y - 1) + (0x400 / (mode_80 ? 0x80 : 0x40)))) // cursor position start at 0x8000
data = 0xff;
else if (y > 0 && y < 26)
data = gfx[cy] ^ (c & 0x80 ? 0xff : 0);
if (x == 0) bitmap.plot_box(0, py, 8 + 40*6 + 8, 1, col0);
if (x == 0) bitmap.plot_box(0, py, 8 + line_len*6 + 8, 1, col0);
for (int cx=0; cx<6; cx++)
{
int px = 8 + x*6 + cx;
@ -860,6 +864,13 @@ READ8_MEMBER( iqunlim_state::video_regs_r )
WRITE8_MEMBER( iqunlim_state::video_regs_w )
{
if (offset == 2 && ((m_video_regs[offset] ^ data) & 0x02))
{
rectangle visarea = m_screen->visible_area();
visarea.set(0, (data & 0x02 ? 496 : 256) - 1, 0, 224 - 1);
m_screen->configure(data & 0x02 ? 496 : 256 , 224, visarea, m_screen->frame_period().attoseconds);
}
m_video_regs[offset] = data;
}