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User’s Manual
Preliminary PPC440x5 CPU Core
instalfa.fm.
September 12, 2002
Page 539 of 589
extsb
RA, RS
Extend the sign of byte (RS)
24:31
.
Place the result in RA.
311
extsb.
CR[CR0]
extsh
RA, RS
Extend the sign of halfword (RS)
16:31
.
Place the result in RA.
312
extsh.
CR[CR0]
icbi
RA, RB
Invalidate the instruction cache block which contains the effec-
tive address (RA|0) + (RB).
313
icbt
RA, RB
Load the instruction cache block which contains the effective
address (RA|0) + (RB).
311
iccci
RA, RB Invalidate the instruction cache array. 316
icread
RA, RB
Read tag and data information from the instruction cache line
selected using effective address bits 17:26. The effective
address is calculated by (RA|0) + (RB).
Place the instruction selected by effective address bits 27:29 in
ICDBDR; place the tag information in ICDBTRH and ICDBTRL.
317
inslwi
RA, RS, n, b
Insert from left immediate. (n > 0)
(RA)
b:b+n–1
← (RS)
0:n–1
Extended mnemonic for
rlwimi RA,RS,32−b,b,b+n−1
399
inslwi.
Extended mnemonic for
rlwimi. RA,RS,32−b,b,b+n−1
CR[CR0]
insrwi
RA, RS, n, b
Insert from right immediate. (n > 0)
(RA)
b:b+n–1
← (RS)
32–n:31
Extended mnemonic for
rlwimi RA,RS,32−b−n,b,b+n−1
399
insrwi.
Extended mnemonic for
rlwimi. RA,RS,32−b−n,b,b+n−1
CR[CR0]
isel
RT, RA, RB,
CRb
RT ← (RA|0) if CRb = 1, else RT ← (RB) 319
isync
Synchronize execution context by flushing the prefetch queue. 320
la
RT, D(RA)
Load address. (RA ≠ 0)
D is an offset from a base address that is assumed to be (RA).
(RT) ← (RA) + EXTS(D)
Extended mnemonic for
addi RT,RA,D
258
lbz
RT, D(RA)
Load byte from EA = (RA|0) + EXTS(D) and pad left with zeroes,
(RT) ←
24
0 || MS(EA,1).
321
lbzu
RT, D(RA)
Load byte from EA = (RA|0) + EXTS(D) and pad left with zeroes,
(RT) ←
24
0 || MS(EA,1).
Update the base address,
(RA) ← EA.
322
lbzux
RT, RA, RB
Load byte from EA = (RA|0) + (RB) and pad left with zeroes,
(RT) ←
24
0 || MS(EA,1).
Update the base address,
(RA) ← EA.
323
lbzx
RT, RA, RB
Load byte from EA = (RA|0) + (RB) and pad left with zeroes,
(RT) ←
24
0 || MS(EA,1).
324
lha
RT, D(RA)
Load halfword from EA = (RA|0) + EXTS(D) and sign extend,
(RT) ← EXTS(MS(EA,2)).
325
Table A-1. PPC440x5 Instruction Syntax Summary (continued)
Mnemonic Operands Function
Other Registers
Changed
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