System Flags


This table lists the system flags that are of general interest. Use the table to determine the meaning of each system flag and the effects of setting or resetting the flag. For instructions on how to set, reset, or test flags, refer to Chapter 5 of this guide.


System Flags


Flag
Number

Meaning

Comments


240=F1-F5 are not defined
1=F1-F5 are defined
Flag 25 specifies which set of F1-F5 definitions to use.

250=F1-F5 are defined by system
1=F1-F5 are defined by user
Ignored unless flag 24=1.

330=Not radian mode
1=Radian mode
If flags 33 and 34 are both = 0, then degree mode. Controls RAD indicator

340=Not grad mode
1=Grad mode
Controls GRAD indicator

390=Not second function
1=Next key is a second function
Controls 2nd indicator

400=Not unformatted mode
1=Unformatted mode
If flags 40, 41, and 42 all = 0, then decimal mode.

410=Not octal mode
1=Octal mode
Controls OCT indicator

420=Not hexadecimal mode
1=Hexadecimal mode
Controls HEX indicator

430=Not engineering notation display mode
1=Engineering notation display mode

440=Not scientific notation display mode
1=Scientific notation display mode

490=System protected
1=System unprotected (SYS mode in effect)
Controls SYS indicator

500=Remove contents of display, t-register for [ INV ][ ∑+ ]
1=Remove last point for [ INV ][ ∑+ ]
Reset automatically if next sequence is not [ INV ][ ∑+ ]

510=Two-variable statistics mode
1=One-variable statistics mode

520=[ INV ] was not pressed before F1-F5
1=[ INV ] was pressed before F1-F5
Flag 52 is a copy of the status of the INV flag when F1-F5 was pressed. You can test this flag for an INV Fx sequence.

530=No error was detected
1=An error was detected
Controls ERROR indicator

540=Not word-break mode
1=Word-break mode

550=Fetch new key
1=Fetch last key pressed
System tests before next key scan (either KW or regular keyboard operation)

560=Do not scroll user-alpha message
1=Scroll user alpha message if more than 16 characters
Reset automatically each time a new alpha display is sent out.

610=Do not display a system alpha message
1=Display a system alpha message
If flags 61 and 62 both = 0, the numeric display is sent out.

620=Do not display a user alpha message
1=Display a user alpha message

630=Uppercase lock
1=Lowercase lock
Controls the LC indicator.

670=Not fixed-decimal mode
1=Fixed decimal mode
If flag 67=1, then byte 21A6 contains the number of digits to show after the decimal point.

680=Not trace mode
1=Trace mode

720=Not two's complement mode
1=Two's complement mode

730=Auto power-down enabled
1=Auto power-down disabled

740=Specified printer not connected
1=Specified printer connected
Set/reset after each print or advance.

750=Peripheral battery OK
1=Low battery in peripheral
Controls P indicator.

760=RPD-95 battery OK
1=Low battery in RPD-95
Controls LOW indicator.

770=No I/O activity
1=I/O activity on the I/O bus
Controls I/O indicator.


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