Texas Instruments TI-89 Developer's Guide

150
Chapter 14: Data Types
TI
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89 / TI
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92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
14.4. Data Variable
Description Bytes
Length of Data Variable 2
Column Width (# chars -2) 1
Number of Columns (0-99, 0 = no column data) 1
Column Number 1
Length of Column List (MSB, then LSB) 2
List Contents variable
LIST_TAG 1
. . . repeat above section for each column variable
Number of Formulas (0-99, 0 = no formulas) 1
Column Number 1
Data Length (MSB, then LSB) 2
Formula Contents variable
Expression (any) Tag 1
. . . repeat above section for each formula variable
Number of Titles (0-99, 0 = no titles) 1
Column Number 1
Data Length (MSB, then LSB) 2
Title Contents (STRING) variable
STR Tag 1
. . . repeat above section for each title variable
DATA_VAR_TAG 1
Table 14.7: Data Object for a Data Variable
These blocks are repeated from zero to 99 times, depending upon the
corresponding Number field immediately preceding the block.

Texas Instruments TI-89 Specifications

General

Display size (HxV)	100 x 160 mm
Memory type	639K FLASH ROM, 188K bytes RAM
Compatible operating systems	Operating System 2.09
Battery type	AAA