Texas Instruments MSP-FET430 manual Constant Initialization Directives, Listing Control Directives

A430 Directive (IAR)

DL

TI to IAR 2.x/3.x Assembler Migration

E.2.4	Constant Initialization Directives
Description		Asm430 Directive (TI)	A430 Directive (IAR)
Initialize one or more successive bytes or		.byte or .string	DB
text strings
Initialize a 48-bit MSP430 floating-point		.double	1)
constant
Initialize a variable-length field		.field	2)
Initialize a 32-bit MSP430 floating-point		.float	DF 3)
constant
Reserve size bytes in the current section		.space	DS
Initialize one or more text strings		.string	DB
Initialize one or more 16-bit integers		.word	DW

1)The 48-bit MSP430 format is not supported

2)nitialization of bit-field constants (.field) is not supported. Constants must be combined into complete words using DW.

; Asm430 code		; A430 code
.field 5,3	\
.field 12,4	->	DW (30<<(4+3))(12<<3)5 ; equals 3941
.field 30,8	/

3)The 32-bit IEEE floating-point format, used by the C Compiler, is supported in the A430 assembler.

Additional A430 Directives (IAR)

Initialize one or more 32-bit integers

E.2.5 Listing Control Directives

Description	Asm430 Directive (TI)	A430 Directive (IAR)
Allow false conditional code block listing	.fclist	LSTCND-
Inhibit false conditional code block listing	.fcnolist	LSTCND+
Set the page length of the source listing	.length	PAGSIZ
Set the page width of the source listing	.width	COL
Restart the source listing	.list	LSTOUT+
Stop the source listing	.nolist	LSTOUT-
Allow macro listings and loop blocks	.mlist	LSTEXP+ (macro)
		LSTREP+ (loop blocks)
Inhibit macro listings and loop blocks	.mnolist	LSTEXP- (macro)
		LSTREP- (loop blocks)
Select output listing options	.option	1)
Eject a page in the source listing	.page	PAGE
Allow expanded substitution symbol listing	.sslist	2)
Inhibit expanded substitution symbol	.ssnolist	2)
listing
Print a title in the listing page header	.title	3)

1)No A430 directive directly corresponds to .option. The individual listing control directives (above) or the command-line option -c (with suboptions) should be used to replace the .option directive.

2)There is no directive that directly corresponds to .sslist/.ssnolist.

3)The title in the listing page header is the source file name.

Additional A430 Directives (IAR)	A430 Directive (IAR)
Allow/inhibit listing of macro definitions	LSTMAC (+/-)
Allow/inhibit multi-line code listing	LSTCOD (+/-)
Allow/inhibit partitioning of listing into pages	LSTPAG (+/-)
Generate cross reference table	LSTXREF (+/-)

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