Thomas Harte
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58b98267fc
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Formally transferred ownership of PIO accesses to an incoming template, and decided to start being explicit about how to specify the interfaces and provide fallbacks for optional behaviour for the new, clean generation of interfaces. A full-project sweep will inevitably occur but I'll try to tie off this branch first.
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2017-08-01 16:15:19 -04:00 |
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Thomas Harte
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ace71280a0
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Removed implementation file; this is only ever going to be a template.
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2017-08-01 16:00:17 -04:00 |
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Thomas Harte
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1d99c116e7
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Actually, this is probably more correct: increment and then compare, but increment the refresh address once more after the final character, to avoid repeating it.
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2017-08-01 15:29:37 -04:00 |
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Thomas Harte
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ee27e16fb1
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Switched to post-tests increment. Seems to give proper screen width, but also eliminates that 'compare to +1' step that felt unlikely.
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2017-08-01 15:19:25 -04:00 |
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Thomas Harte
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3b1db14817
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Made a quick attempt at properly updating the refresh address.
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2017-08-01 07:36:03 -04:00 |
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Thomas Harte
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e3f677fa37
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I was under-counting row lines. Adjusted comparison. The emulator now produces a solid white square of approximately correct proportions. I'm sure that filling in pixels will reveal the next set of bugs.
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2017-07-31 22:21:46 -04:00 |
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Thomas Harte
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5c68b6cc21
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Fixed display enable reset when there's no adjustment area. A practical lesson in failure to factor.
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2017-07-31 22:16:08 -04:00 |
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Thomas Harte
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ffaa627820
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Fixed frame restart when there is no adjustment period.
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2017-07-31 22:13:45 -04:00 |
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Thomas Harte
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5a396f6787
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Added an explicit cast.
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2017-07-31 22:04:31 -04:00 |
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Thomas Harte
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cb0dc7b434
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I'm sure it's not going to be this easy, but this is a genuine attempt at full horizontal and vertical timing.
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2017-07-31 22:01:54 -04:00 |
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Thomas Harte
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e28829bd1b
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Corrected CRTC timing, gave it someone to talk to and a means with which to talk.
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2017-07-31 20:14:46 -04:00 |
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Thomas Harte
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68ceeab610
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Created a 6845 class and started pushing data at it and clocking it. It doesn't currently have the concept of a bus but will do, hence the in-header implementation.
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2017-07-31 19:56:59 -04:00 |
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