Thomas Harte
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616dc0b57c
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Okay, so this is the absolute bare minimum about of refactoring and wiring necessary to get the [unimplemented] Electron machine pumping.
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2016-01-04 23:40:43 -05:00 |
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Thomas Harte
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43ab8bbad5
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Okay, so then here's a first shot at the Objective-C -> C++ bridge for the Electron.
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2016-01-04 23:16:37 -05:00 |
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Thomas Harte
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ab45c1d530
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Started working on a shell for the Electron emulation, including factoring out the common CRT delegate -> Objective-C bridging, serial dispatch queue and frameskipping logic from the Atari 2600 shell.
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2016-01-04 23:12:47 -05:00 |
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Thomas Harte
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aa0714fe27
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Started sketching out an Acorn Electron emulation, as it's a platform I'm familiar with and will force me to figure out PAL decoding. Factored out NTSC-specific parts of the display decoding logic and hence added RGB output mode.
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2016-01-03 20:41:43 -05:00 |
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Thomas Harte
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bc805a90fe
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Wired up joystick directions, at least, and fire button presses get as far as the C++. But there's some latching to figure out before they'll work.
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2015-08-18 20:33:24 -04:00 |
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Thomas Harte
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a693c081f8
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Switched on the appropriate compiler warnings re: signed comparisons and implicit conversions. Fixed all less-than-explicit calls.
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2015-08-16 16:08:29 -04:00 |
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Thomas Harte
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d19f8ed507
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Removed the implicit reset upon 6502 startup, adding a reset line. Hence all tests now pass again. Added an empty shell for timing tests, the all-RAM 6502 now counting bus cycles.
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2015-08-13 00:51:06 +01:00 |
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Thomas Harte
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3c25ead1f3
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Started working out some of my retain cycles and general failures to release. Switched .mm filename so that Xcode will stop getting confused when I try to switch between implementation and interface files.
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2015-07-27 21:15:10 -04:00 |
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Thomas Harte
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6252f6030f
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Switched to idiomatic source name, ensured latest project name is in all appropriate header places, threw texture coordinates slightly into the shader mix.
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2015-07-26 15:25:11 -04:00 |
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Thomas Harte
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ecb2898bd5
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The overall architecture of who has responsibility for what is now very askew but: the CRT now outputs a tightly packed short buffer, with the probable OpenGL destination in mind. So it's now all fixed arithmetic internally. CRTFrame is reduced to a plain C struct with the intention that the OpenGL view will take responsibility for it and stop doing the back-and-forth sprint on getting buffer data. The Atari 2600 now outputs explicit blanks rather than level blacks for its border, so that it's easier visually to debug the CRT in its form as far as it has currently progressed: to drawing lines where the cathode ray gun would run while outputting pixel. I note that I'm still not quite getting vertical sync right yet — I'm just accepting it anywhere in teh frame — but that should be an easy fix.
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2015-07-24 23:29:45 -04:00 |
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Thomas Harte
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2d0f861474
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Incoming: a 'CRT' class, to receive information intended for a cathode ray tube. To decode sync, etc.
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2015-07-19 13:36:27 -04:00 |
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Thomas Harte
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e0aa1e9f19
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Minor project rearrangement to aid findability.
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2015-07-17 09:10:23 -04:00 |
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Thomas Harte
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1df2c48668
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Introduced my GL view as the window content.
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2015-07-16 21:01:49 -04:00 |
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Thomas Harte
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5160b6bbb8
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Separated out different test suites into different XCTest subclasses.
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2015-07-16 20:52:16 -04:00 |
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Thomas Harte
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3e0679235a
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This now goes just far enough to create an instance of Atari2600::Machine and push a ROM to it. Next jobs are to get a basic CRT emulation wired up, outputting to the window.
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2015-07-16 20:40:46 -04:00 |
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Thomas Harte
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24c0579b94
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Shuffled things and guessed at things until the Xcode project was happy being subservient to the project proper.
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2015-07-16 20:27:31 -04:00 |
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