ICL 1900 Series George 3 Operating System Commands

OFF (OF)

Function

Switches off the specified bit or bits of the switch word.

Format

OFF number list

Each number in the list specifies one of the switch bits 0 to 23.

Forbidden contexts

NO CORE IMAGE

Execution

The specified switch bits in the current core image are switched off.

Examples

OFF 0,1,2,3 Bits 0,1,2 and 3 of word 30 will be set to zero
OFF 23 Bit 23 of word 30 will be set to zero

Error Messages

z IS NOT A VALID SWITCH