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−1399
inslwi. Extended mnemonic for
rlwimi. RA,RS,32−b,b,b+n−1CR[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−1399
insrwi. Extended mnemonic for
rlwimi. RA,RS,32−b−n,b,b+n−1CR[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) Loadbyte from EA = (RA|0) + EXTS(D) and pad left with zeroes,
(RT) ←240 || MS(EA,1). 321
lbzu RT, D(RA)
Loadbyte from EA = (RA|0) + EXTS(D) and pad left with zeroes,
(RT) ←240 || 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) ←240 || 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) ←240 || 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
TableA-1. PPC440x5 Instruction Syntax Summary (continued)
Mnemonic Operands Function Other Registers
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