Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-25 09:50:04 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

osborne1nv: scroll fix (nw)

Browse Source
This commit is contained in:
Robbbert 2017-02-09 00:50:16 +11:00
parent 773e541626
commit 9b48fc922c
2 changed files with 4 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/devices/video/mc6845.cpp
View File

@ -954,7 +954,7 @@ uint8_t mc6845_device::draw_scanline(int y, bitmap_rgb32 &bitmap, const rectangl
uint8_t cr = y / (m_max_ras_addr + (MODE_INTERLACE_AND_VIDEO ? m_interlace_adjust : m_noninterlace_adjust));
uint16_t ma = (cr << 8) | cc;
m_update_row_cb(bitmap, cliprect, ma, ra, y, m_horiz_disp, cursor_x, de, hbp, vbp);
m_update_row_cb(bitmap, cliprect, ma + m_disp_start_addr, ra, y, m_horiz_disp, cursor_x, de, hbp, vbp);
}
else
{

7
src/mame/machine/osborne1.cpp
View File

@ -515,14 +515,13 @@ void osborne1_state::update_acia_rxc_txc()
MC6845_UPDATE_ROW(osborne1nv_state::crtc_update_row)
{
// TODO: work out how the scroll offset actually gets here
rgb_t const *const palette = m_palette->palette()->entry_list_raw();
uint16_t const base = (((m_pia1->b_output() & 0x1F) << 7) + ((ma & 0x3F00) >> 1)) & 0xF80;
ma = (ma >> 1) | 0xf000;
uint32_t *p = &bitmap.pix32(y);
for (uint8_t x = 0; x < x_count; ++x)
{
uint8_t const chr = m_ram->pointer()[0xF000 | base | ((ma + x) & 0x7f)];
uint8_t const clr = (m_ram->pointer()[0x10000 | base | ((ma + x) & 0x7f)] & 0x80) ? 2 : 1;
uint8_t const chr = m_ram->pointer()[ma + x];
uint8_t const clr = BIT(m_ram->pointer()[ma + x + 0x1000], 7) ? 2 : 1;
uint8_t const gfx = ((chr & 0x80) && (ra == 9)) ? 0xFF : m_p_nuevo[(ra << 7) | (chr & 0x7F)];