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* Updated license textMike Stirling2011-09-181-2/+5
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* Added license notice to the top of all source filesMike Stirling2011-08-211-0/+33
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* Clamp line_counter to an even number when in interlace sync+video mode. ↵Mike Stirling2011-08-061-2/+3
| | | | Fixes bug where vsync would disappear half the time when switching into this mode.
* Added cursor support and teletext pass-through to video ULA. Fixed a couple ↵Mike Stirling2011-08-041-1/+5
| | | | of cursor bugs in the CRTC.
* Fixed missing gate in DISEN which meant that blank lines in modes 3 and 6 ↵Mike Stirling2011-08-021-5/+26
| | | | weren't blank. Hopefully fixed handling of interlaced sync+video mode in CRTC ready for SAA5050 implementation.
* Initial commit. Some modules imported from experimental 6502 platform. ↵Mike Stirling2011-07-121-0/+419
Project added for Quartus 9.1