[MIGRATED] Delete .\BUGS\VGA emulation errors.txt

NOTE: file deleted after being migrated with original history

BUGS/VGA emulation errors.txt

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-VGA BUG: Color palette error, last color of the palette, usually if it's white,
-         instead usually comes out black.
-
- - Surprise! productions, The Good, The Bad, & The Ugly
-     - Happens at the demo part with the gargoyle demon art thing that warps
-       vertially: the failure appears as black splotches on his wings that SHOULD
-       be white.
-
-       NOTE: I'm not certain but I wonder if it has anything to do with the
-             previous demo effect and possible palette animation involved for
-             the "fading" effect as it renders. If I'm right, then whether or
-             not the error happens depends entirely on when the previous demo
-             effect ended and the state the color palette was left in.
-
-================================================================================
-  THE FOLLOWING BUGS ARE FIXED!
-================================================================================
-
-VGA BUG: Exotic VRAM clearing tricks do not work, leaving "garbage" on the screen
-
- - Abaddon: Cycling!
-     - Failure to clear the screen is visible when the VGA split-screen pans upward.
-       The "loading" graphic and other garbage contents are visible below the
-       animated VU meters where on real hardware that part of the screen would be
-       blank.
-
-       NOTE: This is still a problem with machine=svga_s3, but fixable by setting
-             machine=svga_et4000 instead. I'm not sure at this time whether the
-             demo has the same problems on real hardware or not.
-
- - Surprise! productions, The Good, The Bad, & The Ugly
-     - There are two parts with rotating wireframe meshes that make use of VGA
-       palette trickry to create "motion blur". Failure to clear the screen results
-       in a wireframe mesh with a border of garbage pixels that flicker.
-
- - Optic Nerve (demo)
-     - At the start of each demo part, when displaying the title of that part, the
-       demo fails to clear the screen. Result: demo title with contents of the
-       previous screen or title screen around it, garbled due to palette mismatch.
-
-       NOTE: This is still an issue with machine=svga_s3, but you can
-             eliminate the problem by setting machine=svga_et4000 or running
-             the demo from an MS-DOS 5.0 or 6.0 bootdisk. MS-DOS 6.22 may cause
-             stability issues. Windows 95/98 DOS mode is certain to cause the
-             demo to crash.
-
- - Impact Studios: Legend
-     - Failure to clear the screen causes 3D dot fields to overdraw into an orange
-       flickering ball.
-
-VGA BUG: Failure to save and restore VGA text screen contents
-
- - Microsoft Windows 95 boot logo
-     - Windows 95 is able to show the boot logo, but when restoring the VGA text
-       console, the contents are all messed up. Why?
-
- - Microsoft Windows 3.0/3.1/95/98
-     - Running the DOS prompt in a window works, until you move the mouse cursor
-       over or near the DOS window. If you go back to fullscreen, the extended
-       character set is missing. If you go back and forth 2 or more times, the
-       character font is missing entirely.
-     - If any DOS program writes to the screen the contents appear as garbage at
-       the top of the Windows desktop. Whatever normally prevents the DOS program
-       from affecting the screen by Windows is not triggering in DOSBox and it
-       may be the source of corrupted VGA states.
-     - Weird crashes when you move the mouse cursor over the window do NOT happen
-       in Windows 3.11 Windows for Workgroups if 32-bit disk and file access is
-       enabled.
-
-VGA BUG: Switching to the DOSBox keymapper, then back, results in failure to redraw
-         emulated VGA output.
-
-VGA BUG: Active display area cuts off right margin for Do Whacka Do
-
- - Do Whacka Do works perfectly except that the rightmost 8-10 pixels are cut off,
-   which makes it a bit difficult to read the scroller at the bottom of the screen.
-
-