Zilog Z80380 Instrukcja Użytkownika Pobierz pdf (Strona 35)

UM004001-COR1103 2–1

380 C-COMPILER USER’S MANUAL

CHAPTER 2

C-COMPILER OVERVIEW

OVERVIEW

The 380 C compiler is an optimizing compiler that translates standard ANSI C programs into

ZiLOG assembly language source code. Key characteristics of the compiler are:

• Supports ANSI C language - ZiLOG’s C-Compiler conforms to the ANSI C standard

as defined by ANSI specifications a for free standing implementation.

• Assembly output - The compiler generates assembly language source files that can be

viewed and modified.

• Provides ANSI-standard run-time libraries - A run-time library for each device is

included with the compiler’s tools. All library functions conform to the ANSI C library

standard. These libraries include functions for string manipulation, buffer manipulation,

data conversion, math, variable length argument lists.

• COFF object files - Common object file format (COFF) is used. This format allows the

user to define the system’s memory map at link time. This maximizes performance by

linking C code and data objects into specific memory areas. Source-level debugging is

also supported by the COFF file format.

• Friendly assembly interface - The compilers calling conventions are easy to use and

flexible. These calling conventions allow the user to easily call assembly and C

functions.

• Preprocessor integration - The compiler front end has a built in preprocessor for faster

compilation.

• Optimization levels - The compiler allows the user to select optimization levels that

employ advanced techniques for compacting and streamlining C code.

• Language extensions - Language extensions are provided to support processor specific

features.

– Memory and I/O address spaces are supported through memory qualifiers

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