83Plus:BCALLs:49F0

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.