Datasheet

Differences

2.1 Overview

This chapter describes the changes that have been made between SDT 2.50/2.51 and

ADS 1.0, between ADS 1.0 and ADS 1.1, and between ADS 1.1 and ADS 1.2.

The most important differences between ADS 1.2 and ADS 1.1 are:

• Support for ARM architecture v5TEJ.

• The ARMulator provides ARM9EJ-S and ARM926EJ-S models, enabling the

execution of Java byte codes under simulation.

• Debuggers allow memory disassembly as Java bytecodes.

• ADS now supported on Red Hat Linux 6.2 and 7.1.

• C libraries provide a real-time divide routine with better worst-case performance.

• The new pragma arm section allows placing code or data into a named section.

The address of the named section can then be specified by a scatter-loading file.

• Access to C++ class members is possible from assembly code.

• The linker can accept libraries as input.

• A linker error is generated if you use scatter-loading files with the linker and have

not reimplemented the

__user_initial_stackheap()

C library function.

• ADW and ADU are not part of ADS 1.2.

The most important differences between ADS 1.1 and ADS 1.0 are:

• Full support for ARM9E and ARM10.

• Support for ARM architecture v5TE processors, including the Intel XScale.

• Improved code size for compiled code.

• The ATPCS now requires 8-byte alignment of the stack.

• Improved debug view for compiled code.

• Support for RealMonitor.

•Angel

™

has been moved to the ARM Firmware Suite.

• The ARMulator rebuild kit is no longer supplied. It is replaced with a new

ARMulator extension kit. The ARMulator has been integrated into a single DLL

(shared object under UNIX) and its configuration has been simplified. A new

interface enables addition of memory models.