Texas Instruments TI-83 Plus Silver Edition - Entry Points, Variables, and Flags; Additional B_CALLs for OS and Speed Control

TI-83 Plus
SILVER EDITION
TI-83 Plus Developer Guide
2
Beta Version May 16, 2001
Addr Page(s) Size Notes
OS
00h – 07h 00 – 07 128K (8 pages) Same as TI-83 Plus
SWAP/USER DATA
08h – 0Bh 08 – 11 64K (4 pages) Same as TI-83 Plus
SWAP/USER APPS/DATA
0Ch – 0Fh 12 – 15 64K (4 pages) Same as TI-83 Plus
USER APPS/DATA
10h – 13h 16 – 19 64K (4 pages) Same as TI-83 Plus
USER APPS/DATA
14h – 67h 20 – 103 1344K (84 pages) Many more user pages
USER APPS/DATA
68h – 69h 104 – 105 32K (2 pages) Pages 14h, 15h on TI-83 Plus
CERTIFICATE LIST
6Ah – 6Bh 106 – 107 32K (2 pages) Pages 16h, 17h on TI-83 Plus
FUTURE OS USE
6Ch – 77h 108 – 119 192K (12 pages)
OS
78h – 7Fh 120 – 127 32K (8 pages) Pages 18h . . . 1Fh on TI-83 Plus
Legend
SWAP and/or User APPS Area
Update System (OS) Area
Fixed Area — changeable only by TI
Because of the additional Flash memory, the first App loaded will be placed at page 69h
(105 decimal) and downward from there (versus 15h for the TI-83 Plus).
E
NTRY
P
OINTS
, V
ARIABLE
T
YPES
,
AND
S
YSTEM
F
LAGS
The TI-83 Plus
SILVER EDITION
uses the same entry points, variable types, and system
flags as the TI-83 Plus.
A
DDITIONAL
B_CALL
S FOR
D
ETERMINING
OS
AND
S
PEED
The TI-83 Plus
SILVER EDITION
and TI-83 Plus OS version 1.13 includes new B_CALL
entry points that allow an application to set the processor speed (SetExSpeed) and to
determine the current speed and OS (GetSysInfo).
The ti83plus.inc has the following entries:
SetExSpeed EQU 50BFh
GetSysInfo EQU 50DDh
NzIf83Plus EQU 50E0h
See the entry point documentation in Appendix A for additional information.