AMCC PPC405 - Page 372

372 AMCC Proprietary
Revision 1.02 - September 10, 2007
PPC405 Processor
Preliminary User’s Manual
clrlwi RA, RS, n Clear left immediate. (n < 32)
(RA)
0:n−1
←
n
0
Extended mnemonic for
rlwinm RA,RS,0,n,31
300
clrlwi. Extended mnemonic for
rlwinm. RA,RS,0,n,31
CR[CR0]
clrlslwi RA, RS, b, n Clear left and shift left immediate.
(n ≤ b < 32)
(RA)
b−n:31−n
← (RS)
b:31
(RA)
32−n:31
←
n
0
(RA)
0:b−n−1
←
b−n
0
Extended mnemonic for
rlwinm RA,RS,n,b−n,31−n
300
clrlslwi. Extended mnemonic for
rlwinm. RA,RS,n,b−n,31−n
CR[CR0]
clrrwi RA, RS, n Clear right immediate. (n < 32)
(RA)
32−n:31
←
n
0
Extended mnemonic for
rlwinm RA,RS,0,0,31−n
300
clrrwi. Extended mnemonic for
rlwinm. RA,RS,0,0,31−n
CR[CR0]
cmp BF, 0, RA, RB Compare (RA) to (RB), signed.
Results in CR[CRn], where n = BF.
188
cmpi BF, 0, RA, IM Compare (RA) to EXTS(IM), signed.
Results in CR[CRn], where n = BF.
189
cmpl BF, 0, RA, RB Compare (RA) to (RB), unsigned.
Results in CR[CRn], where n = BF.
190
cmpli BF, 0, RA, IM Compare (RA) to (
16
0 || IM), unsigned.
Results in CR[CRn], where n = BF.
191
cmplw [BF,] RA, RB Compare Logical Word.
Use CR0 if BF is omitted.
Extended mnemonic for
cmpl BF,0,RA,RB
190
cmplwi [BF,] RA, IM Compare Logical Word Immediate.
Use CR0 if BF is omitted.
Extended mnemonic for
cmpli BF,0,RA,IM
191
cmpw [BF,] RA, RB Compare Word.
Use CR0 if BF is omitted.
Extended mnemonic for
cmp BF,0,RA,RB
188
cmpwi [BF,] RA, IM Compare Word Immediate.
Use CR0 if BF is omitted.
Extended mnemonic for
cmpi BF,0,RA,IM
189
cntlzw RA, RS Count leading zeros in RS.
Place result in RA.
192
cntlzw. CR[CR0]
crand BT, BA, BB AND bit (CR
BA
) with (CR
BB
).
Place result in CR
BT
.
193
crandc BT, BA, BB AND bit (CR
BA
) with ¬(CR
BB
).
Place result in CR
BT
.
194
crclr bx Condition register clear.
Extended mnemonic for
crxor bx,bx,bx
200
creqv BT, BA, BB Equivalence of bit CR
BA
with CR
BB
.
CR
BT
←¬(CR
BA
⊕ CR
BB
)
195
crmove bx, by Condition register move.
Extended mnemonic for
cror bx,by,by
198
crnand BT, BA, BB NAND bit (CR
BA
) with (CR
BB
).
Place result in CR
BT
.
196
Table A-1. PPC405 Instruction Syntax Summary (Continued)
Mnemonic Operands Function Other Registers Changed Page