Offscrpt - Revision history

Runer112 at 19:30, 30 January 2016

2016-01-30T19:30:10Z

Runer112: Documented important copying bug

2016-01-30T19:25:37Z

Documented important copying bug

Souvik1997 at 17:48, 21 June 2010

2010-06-21T17:48:59Z

Souvik1997 at 17:48, 21 June 2010

2010-06-21T17:48:11Z

Souvik1997: OFFSCRPT is an appvar that runs code on shutdown of the calculator, or it can be modified to run code when the calculator powers on.

2010-06-21T17:45:55Z

OFFSCRPT is an appvar that runs code on shutdown of the calculator, or it can be modified to run code when the calculator powers on.

New page

OFFSCRPT is an appvar used by the TI-OS to run an assembly program when the calculator turns off. There is also another appvar called ONSCRPT that runs code when the calculator powers on. ONSCRPT is less stable than OFFSCRPT, nad it is possible to do what ONSCRPT does using an OFFSCRPT appvar. The TI-OS runs the code in the appvar from $8001.

Some applications that use this appvar are:
* CalcUtil
* DoorsCS
* TI's Startup App
* zStart
* Krolypto
These applications use a getKey hook to run something on startup (like the ONSCRPT appvar, but more stable).

To install an OFFSCRPT appvar, a program or application must create the appvar with bcall(_createappvar) and set bit 1 of (iy+33h) to indicate that an OFFSCRPT appvar is installed. To uninstall the OFFSCRPT, the OFFSCRPT appvar must be deleted or bit 1 of (iy+33h) must be reset, or both.

@@ Line 1: / Line 1: @@
-OFFSCRPT is an appvar used by the TI-OS to run an assembly program when the calculator turns off. There is also another appvar called ONSCRPT that runs code when the calculator powers on. ONSCRPT is less stable than OFFSCRPT, and it is possible to do what ONSCRPT does using an OFFSCRPT appvar. The TI-OS runs the code in the appvar from $8001.
+OFFSCRPT is an appvar used by the TI-OS to run an assembly program when the calculator turns off. There is also another appvar called ONSCRPT that runs code when the calculator powers on. ONSCRPT is less stable than OFFSCRPT, and it is possible to do what ONSCRPT does using an OFFSCRPT appvar.
 Some applications that use this appvar are:
@@ Line 10: / Line 10: @@
 To install an OFFSCRPT appvar, a program or application must create the appvar with bcall(_createappvar) and set bit 1 of (iy+33h) to indicate that an OFFSCRPT appvar is installed. To uninstall the OFFSCRPT, the OFFSCRPT appvar must be deleted or bit 1 of (iy+33h) must be reset, or both.
 [[Category:83Plus:OS Information|Offscrpt]]

← Older revision		Revision as of 17:48, 21 June 2010
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		+
	OFFSCRPT is an appvar used by the TI-OS to run an assembly program when the calculator turns off. There is also another appvar called ONSCRPT that runs code when the calculator powers on. ONSCRPT is less stable than OFFSCRPT, nad it is possible to do what ONSCRPT does using an OFFSCRPT appvar. The TI-OS runs the code in the appvar from $8001.		OFFSCRPT is an appvar used by the TI-OS to run an assembly program when the calculator turns off. There is also another appvar called ONSCRPT that runs code when the calculator powers on. ONSCRPT is less stable than OFFSCRPT, nad it is possible to do what ONSCRPT does using an OFFSCRPT appvar. The TI-OS runs the code in the appvar from $8001.

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	To install an OFFSCRPT appvar, a program or application must create the appvar with bcall(_createappvar) and set bit 1 of (iy+33h) to indicate that an OFFSCRPT appvar is installed. To uninstall the OFFSCRPT, the OFFSCRPT appvar must be deleted or bit 1 of (iy+33h) must be reset, or both.		To install an OFFSCRPT appvar, a program or application must create the appvar with bcall(_createappvar) and set bit 1 of (iy+33h) to indicate that an OFFSCRPT appvar is installed. To uninstall the OFFSCRPT, the OFFSCRPT appvar must be deleted or bit 1 of (iy+33h) must be reset, or both.
		+	[[Category:83Plus:OS Information\|Offscrpt]]

@@ Line 1: / Line 1: @@
-OFFSCRPT is an appvar used by the TI-OS to run an assembly program when the calculator turns off. There is also another appvar called ONSCRPT that runs code when the calculator powers on. ONSCRPT is less stable than OFFSCRPT, and it is possible to do what ONSCRPT does using an OFFSCRPT appvar.
+OFFSCRPT is an appvar used by the TI-OS to run an assembly program when the calculator turns off. There is also another appvar called ONSCRPT that runs code when the calculator powers on. However, ONSCRPT only triggers after turning on after APD/power loss, not a manual power off.
-Some applications that use this appvar are:
+Some applications that use the OFFSCRPT appvar are:
 * CalcUtil
 * DoorsCS
@@ Line 7: / Line 7: @@
 * zStart
 * Krolypto
-These applications use a getKey hook to run something on startup (like the ONSCRPT appvar, but more stable).
+These applications install a getKey hook with OFFSCRPT to run something on startup (like the ONSCRPT appvar, but more reliable).
 To install an OFFSCRPT appvar, a program or application must create the appvar with bcall(_createappvar) and set bit 1 of (iy+33h) to indicate that an OFFSCRPT appvar is installed. To uninstall the OFFSCRPT, the OFFSCRPT appvar must be deleted or bit 1 of (iy+33h) must be reset, or both.