Datasheet

Introduction

Execution halts at breakpoints, or when watchpoints are accessed. You can then

examine the state of your system, alter it, and restart it. In this way you can avoid

having any code other than your prototype software running on your target

system.

• If your target system has an Embedded Trace Macrocell, you can examine the

operation of your system while it is running.

For details see the documentation accompanying the hardware.

1.1.3 Semihosting

You can use the I/O facilities of the host computer, instead of providing the facilities on

your target system. This is called semihosting (see Chapter 5 Semihosting).

C and C++ code uses semihosting facilities by default.

To access semihosting facilities from assembly code, use semihosting Software

Interrupts (SWIs). Any of the following intercept semihosting SWIs and request service

from the host computer:

• ARMulator

• your debug monitor

• Multi-ICE