ROM Calls

This Appendix shows information about many ROM Calls that can be used when programming in TI 83 Plus Assembly.

Display

Bit_VertSplit

Tests if the TI−83 Plus is set to G-T (graph-table) display mode.
Output
NZ is set if G-T is set
Example

   B_Call(Bit_VertSplit)
   JR NZ,Screen_is_Split

CheckSplitFlag

Checks if either horizontal or G-T split screen modes are active.
Input
grfSplitOverride, (IY + sGrFlags) = 1 to ignore split mode settings
Output
NZ is set if split screen mode is active

Under construction... Please see this pdf [] for Texas Instrument's documentation on all B_Call's. TI's list is far from complete, consider looking at:

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