Bottom_Estack; Estack Utilities - Texas Instruments TI-89 Developer's Manual
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Appendix B: Global Variables — EStack Utilities
bottom_estack
Declaration:
EStackIndex bottom_estack
Category(ies):
EStack Utilities
Description:
EStackIndex of the bottom (lowest address) of the expression stack. This is
a read-only variable. The estack resides in a fixed location, and
bottom_estack must not be changed. The value indexed by
bottom_estack is always END_OF_SEGMENT_TAG and must not be
changed.
Inputs:
Not applicable.
Outputs:
Not applicable.
Assumptions:
Access_AMS_Global_Variables must be defined.
Side Effects:
Not applicable.
Availability:
On AMS 2.00 and higher.
TI-89 / TI-92 Plus
None
Differences:
See Also:
top_estack, estack_max_index, reset_estack_size
Example:
EStackDisplacement used = top_estack - bottom_estack;
Computes the amount of estack in use and assigns it to the variable used.
EStackDisplacement esize = estack_max_index – bottom_estack;
Computes the amount of usable estack space and assigns it to the variable esize.
TI-89 / TI-92 Plus Developer Guide
Not for Distribution
1225
Beta Version January 26, 2001
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