TAL Reference Manual

Privileged Procedures

TAL Reference Manual—526371-001

15-13

$SWITCHES Function

The $SWITCHES function returns the current content of the switch register.

Usage Considerations

For NonStop and TXP processors, the switch register stores the current setting of the

physical switches on the processor.

$SWITCHES is not portable to future software platforms.

Example of $SWITCHES Function

The following example stores the current content of the switch register into N:

INT n;

n := $SWITCHES;

TARGET Directive

The TARGET directive lets you specify the target system for conditional code. TARGET

works in conjunction with the IF and ENDIF directives. TARGET is a D20 or later

feature.

target-system

is the system for which conditional code is written. target-system can be one of:

ANY This value causes IF ANY conditional code to be compiled.

ANY specifies that the conditional code as written is not

system-dependent.

TNS_ARCH This value causes IF TNS_ARCH conditional code to be

compiled.

TNS_R_ARCH This value causes IF TNS_R_ARCH conditional code to be

compiled.

VST1509.vsd

$SWITCHES

VST1510.vsd

target-system

TARGET