IPT-C2H-NIOS Altera, IPT-C2H-NIOS Datasheet - Page 125

• Manufacturer Part Number: IPT-C2H-NIOS
• Description: C2H COMPILER FOR NIOS II
• Manufacturer: Altera
• Series: Nios®IIr
• Type: Nios IIr

Specifications of IPT-C2H-NIOS

• Function: C to Hardware Compiler
• License: Initial License
• Software Application: IP CORE, NIOS Processor And Functions
• Core Architecture: FPGA
• Core Sub-architecture: Cyclone
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: Not applicable / Not applicable

Introduction
Language
Altera Corporation
November 2009
The Nios II C-to-Hardware Acceleration (C2H) Compiler supports a large
subset of the ANSI C language as described in Chapter 5 and Chapter 6
of the ISO/IEC 9899:1999(E) Specification. The current Nios II
C2H Compiler does not support the C++ programming language or the
library functions described in Chapter 7 of the ISO/IEC 9899:1999(E)
Specification.
This chapter describes Nios II C2H Compiler restrictions, including
unsupported ANSI C language syntax, semantics, and constraints.
This section refers to Chapter 6 of the ISO/IEC 9899:1999(E) Specification.
Section and paragraph numbers from the ISO/IEC 9899:1999(E)
Specification are cited in parentheses.
Declarations
The C2H Compiler supports the majority of data types used in the C
programming language. The following sections describe C2H restrictions
on C declarations.
Unsupported Types (Section 6.7.2, Paragraph 1)
The following types are not supported by the C2H Compiler:
■
■
■
■
■
The following types are supported if specific conditions are met:
■
float - section 6.3.1.5
double - section 6.3.1.5
_Complex – section 6.3.1.7
_Bool – section 6.3.1.2
_Imaginary – section 6.3.1.7
Floating constants are supported only after casting to a supported
type.
For example, the following code casts π to an integer constant:
constant int pi - (int) 3.142957142957;
7. ANSI C Compliance and
9.1
Restrictions
7–1