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TI to IAR 2.x/3.x Assembler Migration
E-4
E.2.4 Constant Initialization Directives
Description Asm430 Directive (TI) A430 Directive (IAR)
Initialize one or more successive bytes or
text strings
.byte or .string DB
Initialize a 48-bit MSP430 floating-point
constant
.double 1)
Initialize a variable-length field .field 2)
Initialize a 32-bit MSP430 floating-point
constant
.float DF 3)
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) A430 Directive (IAR)
Initialize one or more 32-bit integers DL
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
listing
.ssnolist 2)
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 (+/-)