[ DOCS ] : JiffyDOS Command Reference

by cmack · Published February 15, 2025 · Updated March 17, 2025

Command	Action
`@`	Read the disk drive error channel
`@C:newfile=file`	Copy a file on the same diskette
`@I`	Initalize the disk drive
`@N:diskname,ID`	Format a NEW diskette
`@N:diskname`	Short NEW
`@Q`	Disable the JiffyDOS commands
`@R:[newname]=[oldname]`	Rename A File
`@S:[file1],[file2]...`	Scratch a file (files)
`@UJ`	Reset the disk drive
`@V`	Validate a disk
`@$`	Display a disk directory
`@#device`	Set the default device number
`/[filename]`	Load a BASIC program
`↑[filename]`	Load and run a BASIC program
`%[filename]`	Load an machine language program
`←[filename]`	Save a BASIC program
`@B`	Disable the 1541 head rattle
`@D:[filename]`	List a BASIC program from disk
`@F`	Disable the function keys
`@G`	Set interleave gap size
`@L:[filename]`	Lock/Unlock a file
`@O`	Un-NEW a BASIC program
`@P`	Toggle printer output
`@T:[filename]`	List an ASCII file from disk
`@X`	Set Destination device number
`*"filename"type`	Copy a file
`f[filename]`	Load and run an machine language file
`'[filename]`	Verify a file
CTRL + S	Stop / freeze LISTing
CTRL + A	Toggle all files for copy
CTRL + D	Default drive toggle
CTRL + P	Screen Dump
CTRL + W	Toggle single file for copy
SHIFT RUN/STOP	Load and run 1st program on disk
`SYS 58451`	Re-enable JiffyDOS commands
`SYS 58551`	Re-enable the JiffyDOS function keys
`SYS 65137`	Re-enable the JiffyDOS commands (C128 mode)
`SYS 58492`	Re-enable the JiffyDOS (VIC-20 mode)

When initialised with function key support, JiffyDOS assigns shortcuts:

Function Key	Command	Action
F1	`@$:* RETURN` or `@$ RETURN`	Display directory
F2	`%D[filename]`	List a BASIC program from disk
F3	`/[filename]`	Load a BASIC program
F4	`@T[filename]`	List an ASCII (text) file from disk
F5	`↑[filename]`	Load and run a BASIC program
F6	`←[filename]`	Save a BASIC program
F7	`%[filename]`	Load an ML program
F8	`@"S:[filename]`	Scratch a file