FLOS 5.82 INTERNAL COMMANDS - FULL DESCRIPTIONS:

B - Bank select (ie: page in 1 of 15 32KB banks at Z80 address $8000-$FFFF)

	Use: 	B n	(n = 0 to E)





C - Copy bytes in memory (from currently selected bank)
	
	Use:	 C start_address end_address destination_address [dest bank]






CD - Change Directory / Drive

	Use:    CD ..				(go to parent dir)
		CD /				(go to root dir)
		CD subdir			(change to subdir)
		CD VOLn: 			(change to volume n)
		CD VOLn:/hats/berets	(change volume and subdir)
		CD %xyz			(change to assigned directory)

	Notes: CD without any arguments shows the current path






CLS - Clear OS screen

	Use: 	CLS (no args)





COLOUR - Changes the FLOS colour scheme

	 Use: COLOUR pen [paper] [border] [cursor] 

	 Notes: 'pen' = $nm where 'n' is the font character's background colour
              and 'm' is the foreground colour as per the following table:
             
			0 - transparent (shows "paper" colour)
			1 - black
			2 - blue
			3 - red
			4 - magenta
			5 - green
			6 - cyan
			7 - yellow
			8 - white
			9 - dark grey
			a - mid grey
			b - light grey
			c - orange
			d - light blue
			e - light green
			f - brown

		: [Paper], [border] and [cursor] are 12 bit $RGB values






D - Disassemble Z80 code

	Use: 	D start_address end_address

	Note: To aid debugging, it is possible to cursor up to a line of
            code, edit the hex bytes and press enter to update the
		disassembly listing.





DEL- Delete File

	Use:	DEL filename (name must be a file, not a dir)






DIR - Show Directory Listing

	Use:	DIR (no args)





EXEC - Execute a script 

	USe: EXEC filename (note: scripts cannot execute further scripts)





F  - Fill Memory

	Use: 	F start_address end_address fill_byte





FORMAT - Formats *entire disk* to FAT16 (no partition table)

	Use:	FORMAT device_name (EG: SD_CARD) [label]

(Note: You cannot format individual partitions with this
internal format command. "Device_name" refers to an entire
media type, as specified by its driver. As there is only one
driver installed in FLOS by default, the device_name is 
normally SD_CARD)



G - Goto location (IE: Call Z80 routine)

	Use: 	G address





H - Hunt in memory for hex bytes

	Use:	 start_address end_address byte1 [byte2 byte3 etc]





LB - Loads bytes to RAM from currently selected drive

	Use: 	LB filename address [bank]

	Notes: No path is allowed in the filename
		 When the load address goes beyond address $FFFF, bytes are
		 loaded into the next bank (ie: the address wraps around to $8000
		 and the bank count increases)




M - Show memory as hex bytes

	Use: 	M address

	Note: You can edit the displayed data and press return to update
		it in memory as the string is displayed with the : prefix




MD - Make new directory

	Use:	MD newsubdir





MOUNT - Rescans for connected drives

	Use:	MOUNT (no args)




R - Show registers - Updated on exit from external programs or NMI exception.

	Use: 	R (no args)





RD - Remove directory

	Use:	RD subdir (name must be a dir, not a file)





RX - Receive (to RAM) data from serial comms port (and optionally run as code) 

	Use: 	RX filename address [bank]   
                         
	Notes: Filename can be * for wildcard. 

	If filename is "!" the file is assumed to be
	code and executed when downloaded. In this case,
	the file will be loaded to the address and bank
	specified in the location header (if present),
	otherwise it will be loaded to $5000 (a load
	address cannot be specified on the command line).






SB - Save bytes from RAM to currently selected drive

	Use:	 SB filename address length [bank]  

	Notes: No path is allowed in the filename
		 When the length + address extends beyond address $FFFF,
		 bytes are fetched from the next bank (ie: the address wraps
		 around to $8000 and the bank count increases)





T - Show memory as ASCII text

	Use: 	T address

	Note: you can edit the displayed data and press return to update
		it in memory as the string is displayed with the > prefix)





TX - Transmit bytes from RAM to serial comms port (using Serial Link app)

	Use: 	TX filename address length [bank]
	




VERS - Shows the OS and Hardware version numbers

	Use: VERS (no args)





VOLx: - Change volume (without changing subdir)

	Use: VOLx: where x = 0 to 9





>  - Put text in memory

	use: 	T address "text"






:  - Put hex bytes in memory

	Use: 	address byte1 [byte2 etc]






? - List commands

	Use: 	? (no args)






< - Put hex bytes in memory and disassemble

	Use: < address hexbytes