Configuration

Startup process

The initialization follows these steps :

• load the sim68k simulator dynamic library,

• source the configuration file specified with the -c argument if any

• otherwise, look for the SIM68K_CONFIG environment variable and source its file

• otherwise, source the default configuration file $SIM68K_LIB/sim68k.cfg where $SIM68K_LIB is the place where the simulator have been installed

• This configuration file should configure the memory and start all the peripheral circuits and extensions as well, then the simulator is actually reset and started

• look for the SIM68K_START environment variable and source its file if it is defined

• otherwise, source the default start file $SIM68K_LIB/sim68k.start

• source ~/.sim68k if it exists and is readable. This file includes the options

• source ~/.sim68k.windows if it exists and is readable. This file should include windows related informations like the geometry for example.

• load .s29 file passed as argument if any

Example of a configuration file

A skeleton of configuration file is :

addmemory 0x00000000 0x000003FF ram
addmemory 0x00000400 0x0000FFFF ram add 64K of memory
addinterface 0x10000000 0x10000000 routine define device
confIPL 3 200 define interrupt level using vector 64

source fileName containing device definition
Initialization procedure for device

start indicate end of configuration : allocation of memory
command command as load file.exe
command