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- STEVE'S DATALIGHT LIBRARY LIST OF FUNCTIONS
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- aabort Abort a program with character to stdout
- argval Extract a numerical value from a command line argument
- badext Report invalid filename extension and exit
- basename Split a string into path and/or filename
- blpr Low Level Write to Printer
- blprstat Low Level Status from Printer
- cant Report inability to open a file and exit
- cls Clear screen and home cursor
- common_exit Common exit point
- crc_clear Clear (initialize) crc value
- crc_finish Finish crc calculation
- crc_update Update crc calculation
- criterr Critical error interrupt installer
- ctlbrk Control-Break interrupt installer
- cursor_style Set the cursor style
- d_cls Clear current screen
- d_pos Position the cursor on a video page
- d_say Display a string at a specific location on current page
- d_saypag Display a string at a specific location on specified page
- daynum Find the number of a date within a year
- disp_box Display a box on the screen (Direct memory)
- disp_char_at Display a character at a position " "
- disp_char_atr same, with cursor return " "
- disp_cls Clear the display " "
- disp_say Display a string at a position " "
- disp_sayr same, with cursor return " "
- disp_enterdata Like enterdata, but for direct video access
- disp_enterfn Like enterfn, but for direct video access
- dstr_i Make an ASCII decimal string into an integer
- dup Duplicate a file handle
- enterdata Collect a string from the keyboard, TTY style
- enterfn Collect a filename from the keyboard, TTY style
- eraok Ask permission to erase an existing file
- error Display a message and exit
- exists See if a file exists
- exit2dos Request permission to exit to DOS
- exttyp Check a filename for a specified extension type
- fillch Fill a string with a specified character
- fopend fopen a file in a specified environment variable
- fopeng fopen a file in a specified environment variable or PATH
- fopenp fopen a file in the PATH
- get_code_adr get the segment and offset of a function address
- get_data_adr get the segment and offset of a data item
- _getdi Get device information from file handle
- getkey Extended keyboard fetch
- getpath Fetch and parse the environment PATH string
- getpos Get current cursor position
- gtodstr Report time and date to a string
- gtodsub Report time and date to output channel
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- i_dstr Make an integer from a decimal ASCII string
- ibmtype Find out the type of computer
- installtick (see ticker)
- iscons Check specified file descriptor to see if CON:
- isleap Check if a specified year is a leap year
- kbhit See if the keyboard has a character waiting
- lexcmp Lexical comparison of two strings
- mkbox Make a box on the screen
- mktone Make a tone to the speaker
- monthis Get a pointer to the name of a month
- newext Change a filename's extension to something else
- onexit Set a routine to be called by common_exit
- opend open a file in a specified environment variable
- openg open a file in a specified environment variable or PATH
- openp open a file in the PATH
- pr_carret send a carriage return to printer (low level)
- pr_eject send a formfeed to printer (low level)
- pr_nl send a carriage return and line feed to printer
- pr_putline print a string to printer, append cr/lf (low level)
- pr_puts print a string to printer (low level)
- pr_set select printer to use for low level access
- readchar Read a character from a serial port
- ready_rcv Check serial port for an available character
- ready_xmt See if serial port can accept a character
- removetick (see ticker)
- repchar Repeat a character to a file descriptor
- setport Set the parameters for a serial port
- soundoff Turn off the speaker
- soundon Turn on the speaker
- strip Strip a newline character from a string
- _stuff Get raw equipment report
- stuff Get equipment report (high level)
- ticker Real-time hardware clock interrupt services
- vidpage Set a video page as active page
- vmode Set video mode
- weekday Determine the day of the week from the true date
- wkdayname Get a pointer to the name of the day
- writechar Write a character to a serial port