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User’s Manual
PPC440x5 CPU Core Preliminary
Page 538 of 589
instalfa.fm.
September 12, 2002
dcread
RT, RA, RB
Read tag and data information from the data cache line selected
using effective address bits 17:26. The effective address is cal-
culated by (RA|0) + (RB).
Place the data word selected by effective address bits 27:29 in
GPR RT; place the tag information in DCDBTRH and DCDB-
TRL.
305
divw
RT, RA, RB
Divide (RA) by (RB), signed.
Place result in RT.
307
divw.
CR[CR0]
divwo
XER[SO, OV]
divwo.
CR[CR0]
XER[SO, OV]
divwu
RT, RA, RB
Divide (RA) by (RB), unsigned.
Place result in RT.
308
divwu.
CR[CR0]
divwuo
XER[SO, OV]
divwuo.
CR[CR0]
XER[SO, OV]
dlmzb
RA, RS, RB
d ← (RS) || (RB)
i, x, y ← 0
do while (x < 8) ∧ (y = 0)
x ← x + 1
if d
i:i + 7
= 0 then
y ← 1
else
i ← i + 8
(RA) ← x
XER[TBC] ← x
if Rc = 1 then
CR[CR0]
3
←XER[SO]
if y = 1 then
if x < 5 then
CR[CR0]
0:2
← 0b010
else
CR[CR0]
0:2
← 0b100
else
CR[CR0]
0:2
← 0b001
XER[TBC], RA
309
dlmzb.
XER[TBC], RA,
CR[CR0]
eqv
RA, RS, RB
Equivalence of (RS) with (RB).
(RA) ←¬((RS) ⊕ (RB))
310
eqv.
CR[CR0]
extlwi
RA, RS, n, b
Extract and left justify immediate. (n > 0)
(RA)
0:n
–
1
← (RS)
b:b+n–1
(RA)
n:31
←
32
–
n
0
Extended mnemonic for
rlwinm RA,RS,b,0,n−1
400
extlwi.
Extended mnemonic for
rlwinm. RA,RS,b,0,n−1
CR[CR0]
extrwi
RA, RS, n, b
Extract and right justify immediate. (n > 0)
(RA)
32–n:31
← (RS)
b:b+n–1
(RA)
0:31–n
←
32
–
n
0
Extended mnemonic for
rlwinm RA,RS,b+n,32−n,31
400
extrwi.
Extended mnemonic for
rlwinm. RA,RS,b+n,32−n,31
CR[CR0]
Table A-1. PPC440x5 Instruction Syntax Summary (continued)
Mnemonic Operands Function
Other Registers
Changed
Page