IPR-NIOS Altera, IPR-NIOS Datasheet - Page 165

• Manufacturer Part Number: IPR-NIOS
• Description: IP NIOS II MEGACORE RENEW
• Manufacturer: Altera
• Type: MegaCorer

Specifications of IPR-NIOS

• License: Renewal License
• Lead Free Status / RoHS Status: Not applicable / Not applicable

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NII51016-10.1.0
Data Types
Nios II Processor Reference Handbook
December 2010
December 2010
NII51016-10.1.0
This chapter describes the Application Binary Interface (ABI) for the Nios
processor. The ABI describes:
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This chapter contains the following sections:
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Table 7–1
processor.
Table 7–1. Representation of Data Types
char, signed char
unsigned char
short, signed short
unsigned short
int, signed int
unsigned int
long, signed long
unsigned long
float
double
pointer
long long
unsigned long long
How data is arranged in memory
Behavior and structure of the stack
Function calling conventions
“Data Types” on page 7–1
“Memory Alignment” on page 7–2
“Register Usage” on page 7–2
“Stacks” on page 7–3
“Arguments and Return Values” on page 7–7
“Relocation” on page 7–9
shows the size and representation of the C/C++ data types for the Nios II
Type
7. Application Binary Interface
Size (Bytes)
1
1
2
2
4
4
4
4
4
8
4
8
8
two’s complement (ASCII)
binary (ASCII)
two’s complement
binary
two’s complement
binary
two’s complement
binary
IEEE
IEEE
binary
two’s complement
binary
Representation
®
II
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