// license:GPL-2.0+ // copyright-holders:Juergen Buchmueller, Dirk Best /*************************************************************************** * Sharp MZ700 * * video hardware * * Juergen Buchmueller , Jul 2000 * * Reference: http://sharpmz.computingmuseum.com * ***************************************************************************/ #include "emu.h" #include "includes/mz700.h" #ifndef VERBOSE #define VERBOSE 1 #endif #define LOG(N,M,A) \ do { \ if(VERBOSE>=N) \ { \ if( M ) \ logerror("%11.6f: %-24s",machine.time().as_double(),(char*)M ); \ logerror A; \ } \ } while (0) PALETTE_INIT_MEMBER(mz_state, mz) { int i; for (i = 0; i < 8; i++) m_palette->set_indirect_color(i, rgb_t((i & 2) ? 0xff : 0x00, (i & 4) ? 0xff : 0x00, (i & 1) ? 0xff : 0x00)); for (i = 0; i < 256; i++) { m_palette->set_pen_indirect(i*2, i & 7); m_palette->set_pen_indirect(i*2+1, (i >> 4) & 7); } } UINT32 mz_state::screen_update_mz700(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { UINT8 *videoram = m_videoram; int offs; bitmap.fill(m_palette->black_pen(), cliprect); for(offs = 0; offs < 40*25; offs++) { int sx, sy, code, color; sy = (offs / 40) * 8; sx = (offs % 40) * 8; color = m_colorram[offs]; code = videoram[offs] | (color & 0x80) << 1; m_gfxdecode->gfx(0)->opaque(bitmap,cliprect, code, color, 0, 0, sx, sy); } return 0; } /*************************************************************************** MZ-800 ***************************************************************************/ VIDEO_START_MEMBER(mz_state,mz800) { m_gfxdecode->gfx(0)->set_source(m_cgram); } UINT32 mz_state::screen_update_mz800(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { UINT8 *videoram = m_videoram; bitmap.fill(m_palette->black_pen(), cliprect); if (m_mz700_mode) return screen_update_mz700(screen, bitmap, cliprect); else { if (m_hires_mode) { } else { int x, y; UINT8 *start_addr = videoram; for (x = 0; x < 40; x++) { for (y = 0; y < 200; y++) { bitmap.pix16(y, x * 8 + 0) = BIT(start_addr[x * 8 + y], 0); bitmap.pix16(y, x * 8 + 1) = BIT(start_addr[x * 8 + y], 1); bitmap.pix16(y, x * 8 + 2) = BIT(start_addr[x * 8 + y], 2); bitmap.pix16(y, x * 8 + 3) = BIT(start_addr[x * 8 + y], 3); bitmap.pix16(y, x * 8 + 4) = BIT(start_addr[x * 8 + y], 4); bitmap.pix16(y, x * 8 + 5) = BIT(start_addr[x * 8 + y], 5); bitmap.pix16(y, x * 8 + 6) = BIT(start_addr[x * 8 + y], 6); bitmap.pix16(y, x * 8 + 7) = BIT(start_addr[x * 8 + y], 7); } } } return 0; } } /*************************************************************************** CGRAM ***************************************************************************/ WRITE8_MEMBER(mz_state::mz800_cgram_w) { m_cgram[offset] = data; m_gfxdecode->gfx(0)->mark_dirty(offset/8); }