
Assembler Significant Characters And Directives
Assembler Directives
MOTOROLA
DSP ASSEMBLER REFERENCE MANUAL
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EM
(DSP56800 only) Used when it is necessary to emulate 56100 instructions.
This option must be used in order to use the following 56100 instructions in
the 56800 part: ASR16, IMAC, NEGW, TFR2, SUBL and SWAP.
FC
Fold trailing comments. Any trailing comments that are included in a source
line will be folded underneath the source line and aligned with the opcode
field. Lines that start with the comment character will be aligned with the label
field in the source listing. The
FC
option is useful for displaying the source
listing on 80 column devices.
FF
Use form feeds for page ejects in the listing file.
FM
Format Assembler messages so that the message text is aligned and broken
at word boundaries.
GL
Make all section symbols global. This has the same effect as declaring every
section explicitly GLOBAL. This option must be given before any sections are
defined explicitly in the source file.
GS
(default, reset in absolute mode) Make all sections global static. All section
counters and attributes will be associated with the GLOBAL section. This op-
tion must be given before any sections are defined explicitly in the source file.
HDR
(default, reset) Generate listing header along with titles and subtitles.
IC
Ignore case in symbol, section, and macro names. This directive must be is-
sued before any symbols, sections, or macros are defined.
IDW
(DSP56300 only) (default, reset) Generate warning on instruction delays due
to pipeline stalls.
IL
Inhibit source listing. This option will stop the Assembler from producing a
source listing.
INTR
(default, reset in absolute mode) Perform interrupt location checks. Certain
DSP instructions may not appear in the interrupt vector locations in program
memory. This option enables the Assembler to check for these instructions
when the program counter is within the interrupt vector bounds.
LB
Increment load counter (if different from runtime) by number of bytes in DSP
word to provide byte-wide support for overlays in bootstrap mode. This option
must appear before any code or data generation.
LBX
Split overlay load words into bytes and increment load counter by bytes. This
option facilitates debugging of custom boot code. It must appear prior to any
code or data generation.
LDB
Use the listing file as the debug source file rather than the assembly language
file. The
-L
command line option to generate a listing file must be specified for
this option to take effect.
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