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(mess) pc9801: ascii font reading (nw)

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upd7220: attempt to resolve apparent contradiction in window behavior (nw)
This commit is contained in:
cracyc 2014-10-26 11:15:14 -05:00
parent 218ea90606
commit 150bcf445e
2 changed files with 7 additions and 1 deletions
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2
src/emu/video/upd7220.c
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@ -1592,7 +1592,7 @@ void upd7220_device::update_graphics(bitmap_rgb32 &bitmap, const rectangle &clip
addr = ((sad << 1) & 0x3ffff) + (y * (m_pitch << (im ? 0 : 1)));
if (!m_display_cb.isnull())
draw_graphics_line(bitmap, addr, y + (im ? bsy : (bsy >> 1)), wd);
draw_graphics_line(bitmap, addr, y + (bsy / m_lr), wd);
}
}
else

6
src/mess/drivers/pc9801.c
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@ -1908,6 +1908,12 @@ READ8_MEMBER(pc9801_state::pc9801rs_knjram_r)
pcg_offset|= offset & 0x1e;
pcg_offset|= m_font_lr;
if(!(m_font_addr & 0xff))
{
int char_size = m_video_ff[FONTSEL_REG];
return m_char_rom[(m_font_addr >> 8) * (8 << char_size) + (char_size * 0x800) + ((offset >> 1) & 0xf)];
}
/* TODO: investigate on this difference */
if((m_font_addr & 0xff00) == 0x5600 || (m_font_addr & 0xff00) == 0x5700)
return m_kanji_rom[pcg_offset];