Difference between revisions of "83Plus:BCALLs:4549"
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== Synopsis == | == Synopsis == | ||
| − | '''Official Name:''' | + | '''Official Name:''' ClrScrn |
'''BCALL Address:''' 4549 | '''BCALL Address:''' 4549 | ||
Revision as of 15:34, 16 April 2008
Synopsis
Official Name: ClrScrn
BCALL Address: 4549
Clears the display. If textShadow is in use clears it also.
Inputs
None
Outputs
None
Registers Destroyed
- DE,HL
Comments
appTextSave,(IY + appFlags) = 1 if the textShadow is to be cleared also G-T and HORIZ split screen modes will affect how this routine maps the coordinates specified. To avoid this turn off the split screen modes. grfSplit, (IY + sGrFlags) = 1 if horizontal split mode set vertSplit, (IY + sGrFlags) = 1 if graph-table split mode set grfSplitOverride, (IY + sGrFlags) = 1 to ignore split modes
