Section
4
i
URi
t,
1
The C language that the
TMS34010
C compiler supports
is
based on the
Unix
6
System V C language that
is
described by Kernighan and Ritchie,
with
several additions and enhancements to provide compatibility
with
ANSI
C.
The most significant differences
are:
" The addition
of
enum data type.
• A member
of
a structure can have the same name
as
a member of another
structure (unique names aren't required).
• Pointers
to
bit
fields
within
structures
are
allowed.
•
Structures and unions may be passed
as
parameters
to
functions, re-
turned by functions, and assigned
directly.
This section compares the C language compiled by the TMS3401 0 C compiler
to the C language described by Kernighan and Ritchie. It presents
only
the
differences in the
two
forms
of
the C language. The TMS3401 0 C compiler
supports standard Kernighan and Ritchie C except
as
noted in this section.
Throughout
this section, references to Kernighan and Ritchie's ~ Reference
Manual
(Appendix
A
of
The
C Programming Language)
are
shown
in
the left
margin.
Topics in this section
include:
Section
Page
4.1
Identifiers, Keywords, and Constants ......................................................
4-2
4.2
TMS34010
C Data Types .........................................................................
4-4
4.3 Object Alignment .......................................................................................
4-6
4.4 Conversions ................................................................................................
4-6
4.5 Expressions .................................................................................................
4-7
4.6 Declarations ................................................................................................
4-8
4.7 Initialization
of
Static and Global Variables .........................................
4-10
4.8
asm
Statement .........................................................................................
4-10
4.9 Lexical Scope Rules ............................................................................... 4-11
6
UNIX
is
a registered trademark
of
AT&T.
4-1
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