// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic /*************************************************************************** Mikro-80 video driver by Miodrag Milanovic 10/03/2008 Preliminary driver. ****************************************************************************/ #include "emu.h" #include "includes/mikro80.h" void mikro80_state::video_start() { } uint32_t mikro80_state::screen_update_mikro80(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { uint8_t *gfx = m_region_gfx1->base(); int x,y,b; for(y = 0; y < 32*8; y++ ) { for(x = 0; x < 64; x++ ) { int addr = x + (y / 8)*64; uint8_t code = gfx[m_video_ram [addr]*8+ (y % 8)]; uint8_t attr = m_cursor_ram[addr+1] & 0x80 ? 1 : 0; for (b = 7; b >= 0; b--) { uint8_t col = (code >> b) & 0x01; bitmap.pix16(y, x*8+(7-b)) = attr ? col ^ 1 : col; } } } return 0; }