User`s guide

CPU32 Emulation 95

Chapter 6: Using Internal Registers (SIM and EMSIM Registers)

Configuring SIM Register Values

There are three ways to configure the values of the SIM registers:

• Using code in your target’s boot ROM, or

• Copying values from the EMSIM registers into the SIM registers, or

• Manually entering the value of each SIM register using the Emulation

Control Interface

To copy EMSIM registers to target SIM

registers

You can copy values from the EMSIM registers into the SIM registers in

three ways:

Using the Emulation Control Interface:

•

In the Configuration window, click the

Load Configuration

button.

Using the emulator’s built-in commands:

•

Enter the

sync emsim

command.

By resetting the target:

Reset the target processor.

Some registers can only be written once after processor reset.

If you set the EMSIM values, then reset and break, the EMSIM values will be

written to the SIM registers. If your initialization code then attempts to write to

one of the "write once after reset" registers, the writes will fail. In this case, you

must run from reset to correctly execute the initialization code.