ripv

Rip Van Winkle

ripv

Enters Deep Sleep mode (Supervisor only).

Details

Enters Deep Sleep (Rip Van Winkle) mode, the deepest power-saving state with minimal power consumption and maximum wake-up latency. This privileged instruction is implementation-defined and typically requires a system reset or dedicated wakeup mechanism to recover. No status registers are modified.

Pseudocode Operation

if MSR[PR] = 1 then raise Privileged Instruction Exception
enter Deep Sleep mode

Example

ripv

Encoding

Binary Layout
31
0
/
6
/
11
/
16
/
21
/
31
 
Format X-form
Opcode
Extension Privileged

Operands