Difference between revisions of "83Plus:BCALLs:49F0"
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Latest revision as of 15:41, 16 April 2008
Synopsis
Official Name: CheckSplitFlag
BCALL Address: 49F0
Checks if either horizontal or G-T split screen modes are active.
Inputs
None
Outputs
Z = 1 if no split screen mode is active = 0 if a split screen mode is active
Registers Destroyed
none
Comments
grfSplitOverride, (IY + sGrFlags) = 1 to ignore split mode settings This flag is set to make system routines draw to the full screen even when in a split screen mode.
