Notes	Address		Name	Description
	Hex	Dec
X117	5BFF	23551	TSTACK	Temporary stack grows down from here. Used when RAM bank 7 is switched in at top of memory while executing the editor or calling NextZXOS. It may safely go down to 5B8Ah if necessary. This guarantees at least 117 bytes of stack when NextBASIC calls NextZXOS
N8	5C00	23552	KSTATE	Used in reading the keyboard
N1	5C08	23560	LASTK	Stores newly pressed key
1	5C09	23561	REPDEL	Time (in 50ths of a second) that a key must be held down before it repeats. This starts off at 35, but you can POKE in other values
1	5C0A	23562	REPPER	Delay (in 50ths of a second) between successive repeats of a key held down – initially 5)
X2	5C0B	23563	RETVARS	Address of local variables on return stack
N1	5C0D	23565	K_DATA	Stores 2nd byte of colour controls entered from keyboard
N2	5C0E	23566	TVDATA	Stores bytes of colour, AT and TAB controls going to TV
X38	5C10	23568	STRMS	Addresses of channels attached to streams
2	5C36	23606	CHARS	256 less than address of character set (which starts with space and carries on until ©). Normally in ROM, but you can set up your own in RAM and make CHARS point to it
1	5C38	23608	RASP	Length of warning buzz
1	5C39	23609	PIP	Length of keyboard click
1	5C3A	23610	ERRNR	1 less than the report code. Starts off at 255 (for -1) so PEEK 23610 gives 255
X1	5C3B	23611	FLAGS	Various flags to control the NextBASIC system
X1	5C3C	23612	TVFLAG	Flags associated with the TV
X2	5C3D	23613	ERRSP	Address of item on machine stack to be used as error return
N2	5C3F	23615		Reserved for system use
N1	5C41	23617	MODE	Specifies K, L, C, E or G cursor.
2	5C42	23618	NEWPPC	Line to be jumped to
N1	5C44	23620		Reserved for system use
2	5C45	23621	PPC	Line number of statement currently being executed
1	5C47	23623	SUBPPC	Number within line of statement currently being executed
1	5C48	23624	BORDCR	Border colour multiplied by 8; also contains the attributes normally used for the lower half of the screen
2	5C49	23625	E_PPC	Number of current line (with program cursor)
X2	5C4B	23627	VARS	Address of variables
N2	5C4D	23629	DEST	Address of variable in assignment
X2	5C4F	23631	CHANS	Address of channel data
X2	5C51	23633	CURCHL	Address of information currently being used for input and output
X2	5C53	23635	PROG	Address of NextBASIC program
X2	5C55	23637	NXTLIN	Address of next line in program
X2	5C57	23639	DATADD	Address of terminator of last DATA item
X2	5C59	23641	E_LINE	Address of command being typed in
2	5C5B	23643	K_CUR	Address of cursor
X2	5C5D	23645	CH_ADD	Address of the next character to be interpreted – the character after the argument of PEEK, or the NEWLINE at the end of a POKE statement
2	5C5F	23647	X_PTR	Address of the character after the ? marker
X2	5C61	23649	WORKSP	Address of temporary work space
X2	5C63	23651	STKBOT	Address of bottom of calculator stack
X2	5C65	23653	STKEND	Address of start of spare space
N1	5C67	23655	BREG	Calculator's B register