trunk/src/emu/video/pc_vga.c
| r18005 | r18006 | |
|---|
| 621 | 621 | int yi; |
| 622 | 622 | int xi; |
| 623 | 623 | UINT8 start_shift; |
| 624 | UINT16 line_length; |
| 624 | 625 | |
| 625 | 626 | /* line compare is screen sensitive */ |
| 626 | 627 | mask_comp = 0x3ff; |
| 627 | 628 | curr_addr = 0; |
| 628 | 629 | |
| 630 | if(vga.crtc.dw) |
| 631 | line_length = vga.crtc.offset << 3; // doubleword mode |
| 632 | else |
| 633 | { |
| 634 | line_length = vga.crtc.offset << 4; |
| 635 | } |
| 636 | |
| 629 | 637 | start_shift = (!(vga.sequencer.data[4] & 0x08)) ? 2 : 0; |
| 630 | 638 | |
| 631 | 639 | { |
| 632 | | for (addr = VGA_START_ADDRESS << start_shift, line=0; line<LINES; line+=height, addr+=VGA_LINE_LENGTH, curr_addr+=VGA_LINE_LENGTH) |
| 640 | for (addr = VGA_START_ADDRESS << start_shift, line=0; line<LINES; line+=height, addr+=line_length |
| 633 | 641 | { |
| 634 | 642 | for(yi = 0;yi < height; yi++) |
| 635 | 643 | { |
| r18005 | r18006 | |
|---|
| 1214 | 1222 | printf("Unhandled CRTC reg r %02x\n",index); |
| 1215 | 1223 | break; |
| 1216 | 1224 | } |
| 1217 | | |
| 1218 | 1225 | return res; |
| 1219 | 1226 | } |
| 1220 | 1227 | |