Dan Tobias: /* Other links and references */

2014-04-11T01:13:05Z

‎Other links and references

Dan Tobias at 16:23, 26 October 2013

2013-10-26T16:23:22Z

Dan Tobias at 03:09, 24 January 2013

2013-01-24T03:09:07Z

Dan Tobias: Created page with "{{FormatInfo |subcat=Source code |subcat2=Tokenized BASIC |released=1979 }} '''Texas Instruments''' (TI) is best known for its calculators (such as the programmable [[TI-59 m..."

2013-01-24T02:33:47Z

Created page with "{{FormatInfo |subcat=Source code |subcat2=Tokenized BASIC |released=1979 }} '''Texas Instruments''' (TI) is best known for its calculators (such as the programmable [[TI-59 m..."

New page

{{FormatInfo
|subcat=Source code
|subcat2=Tokenized BASIC
|released=1979
}}

'''Texas Instruments''' (TI) is best known for its calculators (such as the programmable [[TI-59 magnetic card|TI-59]]), but from 1979 through the mid-1980s they also produced computers for the home market. The TI 99/4A was their most popular model, but it still failed to outcompete other manufacturers' home computers such as the [[Commodore BASIC tokenized file|Commodore 64]], so the company ultimately left this market after losing a good deal of money.

There were two versions of BASIC for the TI 99/4A, a "standard" one and an "Extended BASIC" with additional commands. Both were stored in tokenized form. The tokenization was compatible between the two versions, with the added commands given token values that are unused in standard BASIC, and the standard commands keeping the same token values in both versions.

Program lines consisted of a two-byte line number followed by the tokens (byte values from 128-255) and literal characters (1-127), with a null byte (0) ending the line, and a byte 255 marking the end of the file.

TI BASIC was praised for having built-in commands to do things that in most other computer models of the time required complicated PEEKs, POKEs, and CALLs, but criticized for being particularly slow even by the standards of the day; it was "doubly-interpreted", with the BASIC interpreter itself being implemented in a mid-level interpreted language called [[Graphics Programming Language]].

== Tokens ==

Blank values indicate either that the token is unused or is used for something unknown.

{| class="wikitable"
! title="Hexadecimal code point" | Hex
! title="Decimal code point" | Dec
! title="BASIC element the token stands for" | Token meaning
|-
|80||128||
|-
|81||129||ELSE
|-
|82||130||:: (Extended)
|-
|83||131||! (Extended)
|-
|84||132||IF
|-
|85||133||GO
|-
|86||134||GOTO
|-
|87||135||GOSUB
|-
|88||136||RETURN
|-
|89||137||DEF
|-
|8A||138||DIM
|-
|8B||139||END
|-
|8C||140||FOR
|-
|8D||141||LET
|-
|8E||142||BREAK
|-
|8F||143||UNBREAK
|-
|90||144||TRACE
|-
|91||145||UNTRACE
|-
|92||146||INPUT
|-
|93||147||DATA
|-
|94||148||RESTORE
|-
|95||149||RANDOMIZE
|-
|96||150||NEXT
|-
|97||151||READ
|-
|98||152||STOP
|-
|99||153||DELETE
|-
|9A||154||REM
|-
|9B||155||ON
|-
|9C||156||PRINT
|-
|9D||157||CALL
|-
|9E||158||OPTION
|-
|9F||159||OPEN
|-
|A0||160||CLOSE
|-
|A1||161||SUB
|-
|A2||162||DISPLAY
|-
|A3||163||IMAGE (Extended)
|-
|A4||164||ACCEPT
|-
|A5||165||ERROR (Extended)
|-
|A6||166||WARNING (Extended)
|-
|A7||167||SUBEXIT (Extended)
|-
|A8||168||SUBEND (Extended)
|-
|A9||169||RUN
|-
|AA||170||LINPUT (Extended)
|-
|AB||171||
|-
|AC||172||
|-
|AD||173||
|-
|AE||174||
|-
|AF||175||
|-
|B0||176||THEN
|-
|B1||177||TO
|-
|B2||178||STEP
|-
|B3||179||,
|-
|B4||180||;
|-
|B5||181||:
|-
|B6||182||)
|-
|B7||183||(
|-
|B8||184||&
|-
|B9||185||
|-
|BA||186||OR (Extended)
|-
|BB||187||AND (Extended)
|-
|BC||188||XOR (Extended)
|-
|BD||189||NOT (Extended)
|-
|BE||190||=
|-
|BF||191||<
|-
|C0||192||>
|-
|C1||193||+
|-
|C2||194||-
|-
|C3||195||*
|-
|C4||196||/
|-
|C5||197||^
|-
|C6||198||
|-
|C7||199||"string"
|-
|C8||200||string
|-
|C9||201||Stmt #
|-
|CA||202||EOF
|-
|CB||203||ABS
|-
|CC||204||ATN
|-
|CD||205||COS
|-
|CE||206||EXP
|-
|CF||207||INT
|-
|D0||208||LOG
|-
|D1||209||SGN
|-
|D2||210||SIN
|-
|D3||211||SQR
|-
|D4||212||TAN
|-
|D5||213||LEN
|-
|D6||214||CHR$
|-
|D7||215||RND
|-
|D8||216||SEG$
|-
|D9||217||POS
|-
|DA||218||VAL
|-
|DB||219||STR$
|-
|DC||220||ASC
|-
|DD||221||PI (Extended)
|-
|DE||222||REC
|-
|DF||223||MAX (Extended)
|-
|E0||224||MIN (Extended)
|-
|E1||225||RPT$ (Extended)
|-
|E2||226||
|-
|E3||227||
|-
|E4||228||
|-
|E5||229||
|-
|E6||230||
|-
|E7||231||
|-
|E8||232||NUMERIC (Extended)
|-
|E9||233||DIGIT (Extended)
|-
|EA||234||UALPHA (Extended)
|-
|EB||235||SIZE (Extended)
|-
|EC||236||ALL (Extended)
|-
|ED||237||USING (Extended)
|-
|EE||238||BEEP (Extended)
|-
|EF||239||ERASE (Extended)
|-
|E0||240||AT (Extended)
|-
|F1||241||BASE
|-
|F2||242||
|-
|F3||243||VARIABLE
|-
|F4||244||RELATIVE
|-
|F5||245||INTERNAL
|-
|F6||246||SEQUENTIAL
|-
|F7||247||OUTPUT
|-
|F8||248||UPDATE
|-
|F9||249||APPEND
|-
|FA||250||FIXED
|-
|FB||251||PERMANENT
|-
|FC||252||TAB
|-
|FD||253||# (files)
|-
|FE||254||VALIDATE (Extended)
|-
|FF||255||end of file marker
|}

== Format documentation ==
* [http://www.99er.net/tifaq2.html#TIFAQ004 What are tokens?]
* [http://tech.groups.yahoo.com/group/ti99-4a/message/61252 Message about TI BASIC format]

== Other links and references ==
* [[Wikipedia:Texas Instruments TI-99/4A]]
* [[Wikipedia:TI BASIC (TI 99/4A)]]
* [http://www.pagetable.com/?p=288 TI 99/4a BASIC as a scripting language for Windows and Mac OS X]

← Older revision		Revision as of 16:23, 26 October 2013
Line 289:		Line 289:
	* [[Wikipedia:TI BASIC (TI 99/4A)]]		* [[Wikipedia:TI BASIC (TI 99/4A)]]
	* [http://www.pagetable.com/?p=288 TI 99/4a BASIC as a scripting language for Windows and Mac OS X]		* [http://www.pagetable.com/?p=288 TI 99/4a BASIC as a scripting language for Windows and Mac OS X]
		+
		+	[[Category:Texas Instruments]]

← Older revision		Revision as of 03:09, 24 January 2013
Line 12:		Line 12:

	TI BASIC was praised for having built-in commands to do things that in most other computer models of the time required complicated PEEKs, POKEs, and CALLs, but criticized for being particularly slow even by the standards of the day; it was "doubly-interpreted", with the BASIC interpreter itself being implemented in a mid-level interpreted language called [[Graphics Programming Language]].		TI BASIC was praised for having built-in commands to do things that in most other computer models of the time required complicated PEEKs, POKEs, and CALLs, but criticized for being particularly slow even by the standards of the day; it was "doubly-interpreted", with the BASIC interpreter itself being implemented in a mid-level interpreted language called [[Graphics Programming Language]].
		+
		+	A Japanese computer called the [http://en.wikipedia.org/wiki/Tomy_Tutor Tomy Tutor] used a version of BASIC that is reported to have had the same token values as TI BASIC.

	== Tokens ==		== Tokens ==

@@ Line 289: / Line 289: @@
 * [[Wikipedia:TI BASIC (TI 99/4A)]]
 * [http://www.pagetable.com/?p=288 TI 99/4a BASIC as a scripting language for Windows and Mac OS X]
 [[Category:Texas Instruments]]

TI BASIC tokenized file - Revision history

Dan Tobias: /* Other links and references */

Dan Tobias at 16:23, 26 October 2013

Dan Tobias at 03:09, 24 January 2013

Dan Tobias: Created page with "{{FormatInfo |subcat=Source code |subcat2=Tokenized BASIC |released=1979 }} '''Texas Instruments''' (TI) is best known for its calculators (such as the programmable [[TI-59 m..."