IBM PPC440X5 Manual do Utilizador descarregar pdf (Página 316)

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iccci

Instruction Cache Congruence Class Invalidate

PPC440x5 CPU Core User’s Manual Preliminary

Page 316 of 589

instrset.fm.

September 12, 2002

iccci

Instruction Cache Congruence Class Invalidate

ICCCI

This instruction flash invalidates the entire instruction cache array. The RA and RB operands are not used;

previous implementations used these operands to calculate an effective address (EA) which specified the

particular block or blocks to be invalidated. The instruction form (including the specification of RA and RB

operands) is maintained for software and tool compatibility.

Registers Altered

• None

Invalid Instruction Forms

• Reserved ﬁelds

Programming Notes

Execution of this instruction is privileged.

This instruction is intended for use in the power-on reset routine to invalidate the entire instruction cache

array before caching is enabled.

Architecture Note

This instruction is implementation-specific and programs which use this instruction may not be portable to

other PowerPC Book-E implementations. See Instruction Set Portability on page 250.

iccci RA, RB

31 RA RB 966

0 6 11 16 21 31

1 2 ... 311 312 313 314 315 316 317 318 319 320 321 ... 589 590

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