// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic /*************************************************************************** Vector06c driver by Miodrag Milanovic 10/07/2008 Preliminary driver. ****************************************************************************/ #include "emu.h" #include "includes/vector06.h" void vector06_state::video_start() { } uint32_t vector06_state::screen_update_vector06(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { uint8_t code1,code2,code3,code4; uint8_t col; int y, x, b,draw_y; uint8_t *ram = m_ram->pointer(); int width = (m_video_mode==0x00) ? 256 : 512; rectangle screen_area(0,width+64-1,0,256+64-1); // fill border color bitmap.fill(m_color_index, screen_area); // draw image for (x = 0; x < 32; x++) { for (y = 0; y < 256; y++) { // port A of 8255 also used as scroll draw_y = ((255-y-m_keyboard_mask) & 0xff) +32; code1 = ram[0x8000 + x*256 + y]; code2 = ram[0xa000 + x*256 + y]; code3 = ram[0xc000 + x*256 + y]; code4 = ram[0xe000 + x*256 + y]; for (b = 0; b < 8; b++) { col = ((code1 >> b) & 0x01) * 8 + ((code2 >> b) & 0x01) * 4 + ((code3 >> b) & 0x01)* 2+ ((code4 >> b) & 0x01); if (m_video_mode==0x00) { bitmap.pix16(draw_y, x*8+(7-b)+32) = col; } else { bitmap.pix16(draw_y, x*16+(7-b)*2+1+32) = ((code2 >> b) & 0x01) * 2; bitmap.pix16(draw_y, x*16+(7-b)*2+32) = ((code3 >> b) & 0x01) * 2; } } } } return 0; }