The Programmer's Guide to TRSDOS Version 6 - Tim Mann's Home ...

@DCRES SVC-43 Reset a disk controller
@DCSTAT SVC-40 Test disk controller status
@DEBUG SVC-27 Enter system DEBUG package
@DECHEX SVC-96 Convert decimal string to binary
@DIRRD SVC-87 Read a DEC's directory record
@DIRWR SVC-88 Write a DEC's directory record
@DIV16 SVC-94 16-bit by 8-bit unsigned division
@DIV8 SVC-93 8-bit by 8-bit unsigned division
@DODIR SVC-34 Obtain or display directory data
@DSP SVC-02 Character output to *DO (video display)
@DSPLY SVC-10 Line output to *DO (video display)
@ERROR SVC-26 Post an error message
@EXIT SVC-22 Exit program with return code
@FEXT SVC-79 Fetch a default file extension
@FLAGS$ SVC-101 Obtain system flags pointer
@FNAME SVC-80 Obtain filespec given DEC and drive
@FSPEC SVC-78 Fetch and parse a file specification
@GET SVC-03 Character input from a device/file
@GTDCB SVC-82 Obtain DCB pointer given devspec
@GTDCT SVC-81 Obtain DCT pointer given drive
@GTMOD SVC-83 Obtain entry point given module name
@HDFMT SVC-52 Pass "format device" to controller
@HEX16 SVC-99 Convert 16-bit binary to ASCII hex
@HEX8 SVC-98 Convert 8-bit binary to ASCII hex
@HEXDEC SVC-97 Convert 16-bit binary to ASCII decimal
@HIGH$ SVC-100 Obtain or alter HIGH$/LOW$
@INIT SVC-58 Open a new or existing file
@IPL SVC-00 Reboot the system
@KBD SVC-08 Scan the *KI device
@KEY SVC-01 Obtain a character from the *KI device
@KEYIN SVC-09 Obtain a line of characters from *KI (or JCL)
@KLTSK SVC-32 Remove task assignment during execution
@LOAD SVC-76 Load a program file
@LOC SVC-63 Return file's current record number
@LOF SVC-64 Return file's ending record number
@LOGER SVC-11 Send a message to the Job Log (*JL)
@LOGOT SVC-12 Display and log a message (*DO and *JL)
@MSG SVC-13 Send a message line to a device
@MUL16 SVC-91 16-bit by 8-bit into 24-bit multiplication
@MUL8 SVC-90 8-bit by 8-bit into 8-bit multiplication
@OPEN SVC-59 Open an existing file
@PARAM SVC-17 Parse a command line of parameters
@PAUSE SVC-16 Delay execution for a time period
@PEOF SVC-65 Position to the end of a file
@POSN SVC-66 Position to a designated record of a file
@PRINT SVC-14 Send a message line to *PR device
@PRT SVC-06 Send a character to *PR device
@PUT SVC-04 Send a character to a device/file
@RAMDIR SVC-35 Obtain directory information
@RDHDR SVC-48 Read ID field (where supported)
@RDSEC SVC-49 Read a disk sector
@RDSSC SVC-85 Read a disk's directory sector
@RDTRK SVC-51 Read a disk track (where supported)
@READ SVC-67 Read a file record
@REMOV SVC-57 Remove a file from disk
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