Ultrasparc Extended Instructions; Introduction; Shutdown - Sun Microsystems UltraSPARC-I User Manual

UltraSPARC Extended Instructions

13.1 Introduction

UltraSPARC extends the standard SPARC-V9 instruction set with three new
classes of instructions designed to support power-down mode (see Section 13.2,
"SHUTDOWN") enhance graphics functionality (see Section 13.5, "Graphics In-
structions"), and improve the efficiency of memory accesses (see Section 13.6,
"Memory Access Instructions).

13.2 SHUTDOWN

opcode
SHUTDOWN
Format (3):
10 —
31 30 29
Suggested Assembly Language Syntax
shutdown
Description:
The SHUTDOWN instruction waits for all outstanding transactions to be com-
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
pleted. This leaves the system and external cache interface in a clean state. It then
opf
0 1000 0000
11 0110
25 24 19 18
operation
Shutdown to enter power down mode
— opf
14 13
13
—
5 4 0