diff options
Diffstat (limited to 'src/mess/video/vector06.c')
-rw-r--r-- | src/mess/video/vector06.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/mess/video/vector06.c b/src/mess/video/vector06.c new file mode 100644 index 00000000000..3446fbbaa37 --- /dev/null +++ b/src/mess/video/vector06.c @@ -0,0 +1,60 @@ +/*************************************************************************** + + Vector06c driver by Miodrag Milanovic + + 10/07/2008 Preliminary driver. + +****************************************************************************/ + + +#include "includes/vector06.h" + + +VIDEO_START( vector06 ) +{ +} + +SCREEN_UPDATE_IND16( vector06 ) +{ + vector06_state *state = screen.machine().driver_data<vector06_state>(); + UINT8 code1,code2,code3,code4; + UINT8 col; + int y, x, b,draw_y; + UINT8 *ram = screen.machine().device<ram_device>(RAM_TAG)->pointer(); + + int width = (state->m_video_mode==0x00) ? 256 : 512; + rectangle screen_area(0,width+64-1,0,256+64-1); + // fill border color + bitmap.fill(state->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-state->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 (state->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; +} + +PALETTE_INIT( vector06 ) +{ + for (UINT8 i=0; i<16; i++) + palette_set_color( machine, i, RGB_BLACK ); +} |