diff options
Diffstat (limited to 'src/devices/bus/hp_dio/hp98544.cpp')
-rw-r--r-- | src/devices/bus/hp_dio/hp98544.cpp | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/src/devices/bus/hp_dio/hp98544.cpp b/src/devices/bus/hp_dio/hp98544.cpp index 339499a96c0..c038be06208 100644 --- a/src/devices/bus/hp_dio/hp98544.cpp +++ b/src/devices/bus/hp_dio/hp98544.cpp @@ -134,17 +134,26 @@ WRITE_LINE_MEMBER(dio16_98544_device::vblank_w) uint32_t dio16_98544_device::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { int startx, starty, endx, endy; - m_topcat->get_cursor_pos(startx, starty, endx, endy); + + + if (!m_topcat->has_changed()) + return UPDATE_HAS_NOT_CHANGED; for (int y = 0; y < m_v_pix; y++) { uint32_t *scanline = &bitmap.pix32(y); - for (int x = 0; x < 1024; x++) { + for (int x = 0; x < m_h_pix; x++) { uint8_t tmp = m_vram[y * m_h_pix + x]; - if (y >= starty && y <= endy && x >= startx && x <= endx) - tmp |= 0xff; *scanline++ = tmp ? rgb_t(255,255,255) : rgb_t(0, 0, 0); } } + + m_topcat->get_cursor_pos(startx, starty, endx, endy); + + for(int y = starty; y <= endy; y++) { + uint32_t *scanline = &bitmap.pix32(y); + memset(scanline + startx, 0xff, (endx - startx) << 2); + } + return 0; } |