JErrorNo

This routine displays a system error or calls an error handler, based on the value at errNo. To allow the “Goto” option for a system error, bit 7 of the error code should be set, and to prevent it, bit 7 should be reset. A list of system error codes is below. These are taken from ti84pceg.inc, and you should note that some allow “Goto” by default while others do not. However, this behavior can be changed by modifying bit 7.

Error Codes ...

Error	Default Code (Hex)
E_Mask (No error)	$7F
E_Overflow	$81
E_DivBy0	$82
E_SingularMat	$83
E_Domain	$84
E_Increment	$85
E_Break	$86
E_NonReal	$87
E_Syntax	$88
E_DataType	$89
E_Argument	$8A
E_DimMismatch	$8B
E_Dimension	$8C
E_Undefined	$8D
E_Memory	$8E
E_Invalid	$8F
E_IllegalNest	$90
E_Bound	$91
E_GraphRange	$92
E_Zoom	$93
E_Label	$14
E_Stat	$15
E_Solver	$96
E_Singularity	$97
E_SignChange	$98
E_Iterations	$99
E_BadGuess	$9A
E_StatPlo	$1B
E_TolTooSmall	$9C
E_Reserved	$9D
E_Mode	$9E
E_LnkErr	$9F
E_LnkMemErr	$A0
E_LnkTransErr	$A1
E_LnkDupErr	$A2
E_LnkMemFull	$A3
E_Unknown	$A4
E_Scale	$A5
E_IdNotFound	$26
E_NoMode	$A7
E_Validation	$28
E_Length	$A9
E_Application	$AA
E_AppErr1	$AB
E_AppErr2	$AC
E_ExpiredApp	$2D
E_BadAdd	$2E
E_Archived	$AF
E_Version	$30
E_ArchFull	$31
E_Variable	$B2
E_Duplicate	$B3
E_Date	$B4
E_UnknownCmd	$B5
E_OverLimit	$36
E_Disabled	$37
E_Xmit	$38
E_MemFull	$39

If this routine is called, it will not return.

Address: $02012C

Inputs:

Value at errNo contains error code.
Bit 7 of error code is set for “Goto” option, or reset if “Goto” is not allowed.

Outputs:

Displays system error or calls error handler.
If a custom error handler is called, the error code will be in a.

Destroys:

This routine does not return.