BP - begin page - forces new page
BS - bottom space - BS (n lines)
CE - centre - CE (n lines)
CI - cancels indent
CO - contin out
CP - cond. page - if CP( n>lines left )
DE - double-strike end
DH - define header - next string=header
DM - disable messages
DS - double strike start
DP - def.` char. - (ASCII of ` to pri.)
DT - define tabstops - (DTn,n,n..14nos)
EM - enable messages
EP - enable paging - at start of text
ES - escape sequence - ES (codes)
FI - fully indent - FI (n lines)
FP - footer position - FP (n lines)
GF - get file - GF"filename"
HP - header position - HP (n lines)
IN - indent - IN (n lines)
JO - justification on
LL - line length - LL(n lines)
LM - left margin - LM(n lines)
LNE- line number end
LNS- line number start
LS - line space - LS (n lines)
NJ - no justification
OC - output ASCII code - OC(ASCII code)
OPS0 - Underline on
OPS1 - Underline off
OPS2 - Double strike on
OPS3 - Double strike off
OS - operating system call - as OSCLI
PA - pause - waits for keypress
PC - def.new pad chr.- PC"chr"
PF - print file - PF"filename"
PL - page length - PL (n lines) -def 66
PN - alter page number - PN(new no.)
PP - print page number
PS - print string - PS"str" or PS a$.
RPSn - reprog. print seq. n- RPS(0-9) ,escape code,code,code..etc.
SEG- call segment - SEGn
SP - space lines -SPn -print n newlines
SS - single spacing
TI - temporary indent - TI (n lines)
TS - top space - TS (n lines)
UE - underline end
US - underline start
CTRL-A - delete character above crsr
CTRL-S - alter case of chr. over crsr.
CTRL-D - delete word
CTRL-F - toggle wordwrap in EDIT mode
CTRL-R - delete markers
CTRL-W - recount words
BGET# - read a byte from file
BPUT# - write a byte to file
CALL - jump to machine code routine
CHR$(n) - returns a string of ASCIIn
CLOSE#n - closes an open file channel n
CURSOR - move(RIGHTn,LEFTn,TOP,BOTTOM)
DELETE - (MARKERS) removes markers
DELETE - (MARKED) removes marked text
DELETE - (AT) removes letter at cursor
DELETE - (LEFT) removes letter to left
DELETE - (WORD)(n) removes word/n words
DOLINE - executes string inc.embed coms eg. A$="PRINT A$":DOLINE A$
DOTHIS.TIMESn - executes code n times
EOF#n -  TRUE if end of file n found
EOT - TRUE if end of text reached
EXT#n - returns length of file n
FALSE - equal to zero
FIND - move cursor to(string)/(MARKERS)
FKEYn - simulates press of function key
FREE - returns free space
GCK$ - get character from keyboard
GCT$ - get character from text
GLK$ - get line from keyboard
GLT$ - get line from text
GOTO - jump to label in program
LEN(n$) - returns length of n$
LOAD(n$) - loads text filename n$
NEW - clears text
OPENIN#n - opens file ref n for input
OPENOUT#n - opens file n for output
PREVIEW - previews text
PRINT - (string)(variable)
PROCnn - executes procedure labeled nn
PTR#n - position of pointer in file n
REPEAT.UNTIL -until condition met
REPLACE (string1), with (string2)
SAVE n$ - saves text under filename n$
SELECT - either (TEXT) or (SEGMENTn)
SOT - TRUE if start of text reached
SPOOL n$ - opens file n$, sends display
STRG$(n) - returns (n) as a string
SWAP(n) -alter case of letter/n letters
TIME - reserved variable updated by BBC
TRUE - equals -1
TYPE(n$)-'types' n$ into text at cursor
VAL(n$) - returns numeric value of n$
VARFREE - reurns free variable space
VDUn,n - sends n,n to VDU drivers