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Old 27 December 2012, 17:44   #15
mark_k
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Join Date: Aug 2004
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Posts: 2,480
You can easily see the problem when half-rate CIAB TOD is not implemented. Boot a Workbench 1.x disk. Once it loads insert the attached disk image which contains four large icons.

Open the LargeIconsTest disk icon (it will take a while to open). Drag the Xmas_scaled icon out of the window, onto the Workbench backdrop. Close the disk window.

Now drag the Xmas_scaled icon around. With WinUAE 2.5.1 and "Genlock connected" enabled the icon flickers a lot because WinUAE isn't emulating the half-rate TOD. With Genlock connected disabled the icon moves smoothly. Compare with the recent winuae.zip which includes half-rate TOD support. With that the icon moves smoothly both with and without Genlock connected.

Update: I have attached a couple of AVI files to illustrate the difference. Warning: they unpack to about 800MB each!
Attached Files
File Type: zip LargeIconsTest.zip (27.6 KB, 44 views)
File Type: uae A500_1.2_genlock_test.uae (12.7 KB, 50 views)
File Type: 7z IconFlickerWinUAE2510.avi.7z (343.7 KB, 49 views)
File Type: 7z NoIconFlicker_latest_winuae.avi.7z (259.5 KB, 51 views)

Last edited by mark_k; 27 December 2012 at 18:02.
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