// 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" uint32_t vector06_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { uint8_t const *const ram = m_ram->pointer(); u16 const width = (m_video_mode) ? 512 : 256; rectangle screen_area(0,width+64-1,0,256+64-1); // fill border color bitmap.fill(m_color_index, screen_area); // draw image for (int x = 0; x < 32; x++) { for (int y = 0; y < 256; y++) { // port A of 8255 also used as scroll int const draw_y = ((255-y-m_keyboard_mask) & 0xff) +32; uint8_t const code1 = ram[0x8000 + x*256 + y]; uint8_t const code2 = ram[0xa000 + x*256 + y]; uint8_t const code3 = ram[0xc000 + x*256 + y]; uint8_t const code4 = ram[0xe000 + x*256 + y]; for (int b = 0; b < 8; b++) { uint8_t const col = BIT(code1, b) * 8 + BIT(code2, b) * 4 + BIT(code3, b)* 2+ BIT(code4, b); if (!m_video_mode) bitmap.pix(draw_y, x*8+(7-b)+32) = col; else { bitmap.pix(draw_y, x*16+(7-b)*2+1+32) = BIT(code2, b) * 2; bitmap.pix(draw_y, x*16+(7-b)*2+32) = BIT(code3, b) * 2; } } } } return 0; }