IBM SA14-2339-04 ユーザーズマニュアル

Instruction Set

Instruction Cache Congruence Class Invalidate

iccci
Instruction Cache Congruence Class Invalidate

EA

←

(RA|0) + (RB)

ICCCI(ICU cache array)

This instruction invalidates the entire ICU cache array. The EA is not used; previous implementations
have used the EA for protection checks. The instruction form is maintained for software and tool
compatibility.

• None

• Reserved fields

Execution of this instruction is privileged.

This instruction is intended for use in the power-on reset routine to invalidate the entire cache tag
array before enabling the cache. Cachability can then be enabled.

This instruction is implementation-specific and may not be portable to other implementations.

RA, RB

0

6

11

16

21

31