/*************************************************************************** PP-01 driver by Miodrag Milanovic 08/09/2008 Preliminary driver. ****************************************************************************/ #include "emu.h" #include "includes/pp01.h" #include "machine/ram.h" VIDEO_START( pp01 ) { } SCREEN_UPDATE_IND16( pp01 ) { pp01_state *state = screen.machine().driver_data(); UINT8 code_r,code_g,code_b; UINT8 col; int y, x, b; UINT8 *ram = screen.machine().device(RAM_TAG)->pointer(); for (y = 0; y < 256; y++) { for (x = 0; x < 32; x++) { code_r = ram[0x6000 + ((y+state->m_video_scroll)&0xff)*32 + x]; code_g = ram[0xa000 + ((y+state->m_video_scroll)&0xff)*32 + x]; code_b = ram[0xe000 + ((y+state->m_video_scroll)&0xff)*32 + x]; for (b = 0; b < 8; b++) { col = (((code_r >> b) & 0x01) ? 4 : 0) + (((code_g >> b) & 0x01) ? 2 : 0) + (((code_b >> b) & 0x01) ? 1 : 0); bitmap.pix16(y, x*8+(7-b)) = col; } } } return 0; } static const rgb_t pp01_palette[8] = { MAKE_RGB(0x00, 0x00, 0x00), // 0 MAKE_RGB(0x00, 0x00, 0x80), // 1 MAKE_RGB(0x00, 0x80, 0x00), // 2 MAKE_RGB(0x00, 0x80, 0x80), // 3 MAKE_RGB(0x80, 0x00, 0x00), // 4 MAKE_RGB(0x80, 0x00, 0x80), // 5 MAKE_RGB(0x80, 0x80, 0x00), // 6 MAKE_RGB(0x80, 0x80, 0x80), // 7 }; PALETTE_INIT( pp01 ) { palette_set_colors(machine, 0, pp01_palette, ARRAY_LENGTH(pp01_palette)); }