Texas Instruments MSP-FET430, User Manual

Page: 84 / 95

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
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
Stop the source listing .nolist LSTOUT-
Allow macro listings and loop blocks .mlist (macro)
(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 (+/-)