MBASIC tokenized file

File Format
Name	MBASIC tokenized file
Ontology	Electronic File Formats Source code Tokenized BASIC MBASIC tokenized file
Extension(s)	.bas
Released	1975

MBASIC is the direct descendant of the original Altair BASIC from Microsoft, adapted for the CP/M operating system. The various BASICs descended from that starting point were generically known as BASIC-80, and had varying degrees of similarity.

MBASIC used a similar file format to that of the later GW-BASIC tokenized file, though the token values were different.

Tokens

Blanks are unused, or at least unknown.

Hex	Dec	Token meaning
80	128
81	129	END
82	130	FOR
83	131	NEXT
84	132	DATA
85	133	INPUT
86	134	DIM
87	135	READ
88	136	LET
89	137	GOTO
8A	138	RUN
8B	139	IF
8C	140	RESTORE
8D	141	GOSUB
8E	142	RETURN
8F	143	REM
90	144	STOP
91	145	PRINT
92	146	CLEAR
93	147	LIST
94	148	NEW
95	149	ON
96	150	DEF
97	151	POKE
98	152	CONT
99	153
9A	154
9B	155	LPRINT
9C	156	LLIST
9D	157	WIDTH
9E	158	ELSE
9F	159	TRACE
A0	160	NOTRACE
A1	161	SWAP
A2	162	ERASE
A3	163	EDIT
A4	164	ERROR
A5	165	RESUME
A6	166	DEL
A7	167	AUTO
A8	168	RENUM
A9	169	DEFSTR
AA	170	DEFINT
AB	171	DEFSNG
AC	172	DEFDBL
AD	173	LINE
AE	174	POP
AF	175	WHILE
B0	176	WEND
B1	177	CALL
B2	178	WRITE
B3	179	COMMON
B4	180	CHAIN
B5	181	OPTION
B6	182	RANDOMIZE
B7	183	SYSTEM
B8	184	OPEN
B9	185	FIELD
BA	186	GET
BB	187	PUT
BC	188	CLOSE
BD	189	LOAD
BE	190	MERGE
BF	181	FILES
C0	192	NAME
C1	193	KILL
C2	194	LSET
C3	195	RSET
C4	196	SAVE
C5	197	RESET
C6	198	TEXT
C7	199	HOME
C8	200	VTAB
C9	201	HTAB
CA	202	INVERSE
CB	203	NORMAL
CC	204	GR
CD	205	COLOR
CE	206	HLIN
CF	207	VLIN
D0	208	PLOT
D1	209	HGR
D2	210	HPLOT
D3	211	HCOLOR
D4	212	BEEP
D5	213	WAIT
D6	214
D7	215
D8	216
D9	217
DA	218
DB	219
DC	220
DD	221	TO
DE	222	THEN
DF	223	TAB(
E0	224	STEP
E1	225	USR
E2	226	FN
E3	227	SPC(
E4	228	NOT
E5	229	ERL
E6	230	ERR
E7	231	STRING$
E8	232	USING
E9	233	INSTR
EA	234	'
EB	235	VARPTR
EC	236	SCRN
ED	237	HSCRN
EE	238	INKEY$
EF	239	>
E0	240	=
F1	241	<
F2	242	+
F3	243	-
F4	244	*
F5	245	/
F6	246	^
F7	247	AND
F8	248	OR
F9	249	XOR
FA	250	EQV
FB	251	IMP
FC	252	MOD
FD	253	(signals that next byte represents token from List 2)
FE	254
FF	255

List 2: 2nd-byte tokens

These are preceded by a FD (hex) byte.

Hex	Dec	Token meaning
81	129	LEFT$
82	130	RIGHT$
83	131	MID$
84	132	SGN
85	133	INT
86	134
87	135	SQR
88	136	RND
89	137	SIN
8A	138	LOG
8B	139	EXP
8C	140	COS
8D	141	TAN
8E	142	ATN
8F	143	FRE
90	144	POS
91	145	LEN
92	146	STR$
93	147	VAL
94	148	ASC
95	149	CHR$
96	150	PEEK
97	151	SPACE$
98	152	OCT$
99	153	HEX$
9A	154	LPOS
9B	155	CINT
9C	156	CSNG
9D	157	CDBL
9E	158	FIX
9F	159
A0	160
A1	161
A2	162
A3	163
A4	164
A5	165
A6	166
A7	167
A8	168
A9	169
AA	170	CVI
AB	171	CVS
AC	172	CVD
AD	173
AE	174	EOF
AF	175	LOC
B0	176	LOF
B1	177	MKI$
B2	178	MKS$
B3	179	MKD$
B4	180	VPOS
B5	181	PDL
B6	182	BUTTON

Format documentation

• MBASIC tokens

Other links and references

• Info on some early documents about the development of Microsoft BASIC in 1975