Texas Instruments TMS34010 User Manual

The TMS34010 C Language
4.6.2 Primary Expressions
K&R 7.1 In TMS34010 C, functions can return structures or unions. However, it is il-
legal to combine a function call with the structure-reference operator ".". Thus,
primary expressions
of the form f(E).5 are not allowed. Note that this re-
striction does not apply to the indirect structure-reference operator " .... ", so
that f(E) .... s is legal.
The restriction of three array dimensions does not apply to expressions, be-
cause [ ] is treated as an operator.
4.6.3 Unary Operators in Expressions
K&R 7.2 The value yielded by the sizeof operator is calculated as the total number of
bits used to store the object divided by eight. (Eight is the number of bits in
a character.) Size of can be legally applied to enum objects and bit fields: if
the
result is not an integer, it is rounded up to the nearest integer.
4.6.4 Assignment Operators in Expressions
K&R
7.14
The
obsolete C assignment operator =op is recognized by TMS34010 C,
along with the current op=. Its use, however, causes a warning message to
be issued.
4.7 Declarations
4.7.1 Storage Class Specifiers in Declarations
K&R 8.1 The first four local objects declared as register in a function will be stored in
TMS34010 registers. A register can store float objects as well as objects of any
integer or pointer type, and
will significantly improve the efficiency of ac-
cessing the object. See also Section 5.2, Register Conventions, page 5-4.
Register
variables declared as short or char are treated as into
A register declaration of an invalid type or a declaration after the first four re-
gisters have been declared is treated as a normal auto declaration.
Note
that functions' arguments declared as register are not implemented in this
release. The register class is ignored for argument variables.
4-5

Texas Instruments TMS34010 Specifications

General

Manufacturer	Texas Instruments
Model	TMS34010
Data Bus Width	32-bit
Operating Voltage	5 V
Year Introduced	1986
Category	Graphics Processor Unit (GPU)
Clock Speed	40 MHz (Maximum)
Instruction Set	Custom
Graphics Capabilities	2D graphics
Package	PGA
Resolution Support	up to 1024x768
Architecture	32-bit RISC

Summary

TMS34010 C Compiler Package Product Overview

Applicable Documents

Lists related Texas Instruments and C programming publications.

Documentation Conventions

Explains symbols and formatting used in the guide.

TMS34010 C Compiler Package Installation

Installation for Texas Instruments and IBM PC Systems

Details installation steps for PC systems, including hardware requirements and diskette usage.

VAX/VMS Systems Installation

Covers tape mounting, VMS commands, and setup for VAX/VMS.

VAX/ULTRIX and VAX/UNIX System V Installation

Outlines tape installation and tool verification for ULTRIX and UNIX systems.

Invocation and Operation of the TMS34010 C Compiler

The TMS34010 C Preprocessor (GSPCPP)

Describes GSPCPP's role in macro processing, include files, and conditional compilation.

The TMS34010 Parser (GSPCC)

Explains GSPCC's function in syntax checking and generating intermediate files.

The Code Generator (GSPCG)

Details GSPCG's process of converting intermediate code to assembly source.

Batch Execution of the C Compiler

Explains how to use GSPC.BAT for compiling and assembling C programs.

Linking a C Program

Covers modular code linking, object libraries, and the role of the linker.

The TMS34010 C Language

Identifiers and Keywords

Discusses identifier significance, case sensitivity, and new keywords.

TMS34010 C Data Types

Details basic and derived data types, including enum and void.

Structure and Union Declarations

Explains alignment, bit fields, and member name rules for structures and unions.

Enumeration Declarations

Describes the syntax and usage of named integer constants (enumerations).

TMS34010 C Run-Time Environment

Memory Model

Describes memory organization, including code and data placement.

Register Conventions

Outlines register usage for stack management, function calls, and general operations.

Function Call Conventions

Details how functions pass arguments, handle return values, and manage the stack.

System Initialization

Explains the creation and initialization of the C run-time environment, including stacks.

TMS34010 Run-Time Support

Memory Management

Describes C dynamic memory management routines like malloc, calloc, and free.

String Functions

Lists and describes functions for string manipulation, search, and comparison.

Character Typing and Conversion Macros

Explains macros for identifying character types and converting between cases.

Fatal Errors

Compiler Error Messages

Describes the format and common fatal error messages from the compiler.

Floating Point Facility

Single-Precision Floating-Point Format

Details the 32-bit format for single-precision floating-point numbers.

Double-Precision Floating-Point Format

Details the 64-bit format for double-precision floating-point numbers.

Floating Point Conversions

Explains conversions between integer, float, and double types.

Floating-Point Error Exception Handling

Describes how to trap and handle floating-point errors using fp-error.