AMCC PPC405 - Page 376

376 AMCC Proprietary
Revision 1.02 - September 10, 2007
PPC405 Processor
Preliminary User’s Manual
lwzu RT, D(RA) Load word from EA = (RA|0) + EXTS(D) and place in RT,
(RT)
← MS(EA,4).
Update the base address,
(RA)
← EA.
246
lwzux RT, RA, RB Load word from EA = (RA|0) + (RB) and place in RT,
(RT) ← MS(EA,4).
Update the base address,
(RA)
← EA.
247
lwzx RT, RA, RB Load word from EA = (RA|0) + (RB) and place in RT,
(RT)
← MS(EA,4).
248
macchw
RT, RA, RB prod
0:31
← (RA)
16:31
x (RB)
0:15
signed
temp
0:32
← prod
0:31
+ (RT)
(RT) ← temp
1:32
249
macchw.
CR[CR0]
macchwo
XER[SO, OV]
macchwo.
CR[CR0]
XER[SO, OV]
macchws
RT, RA, RB prod
0:31
← (RA)
16:31
x (RB)
0:15
signed
temp
0:32
← prod
0:31
+ (RT)
if ((prod
0
= RT
0
) ∧ (RT
0
≠ temp
1
)) then
(RT) ← (RT
0
||
31
(¬RT
0
))
else (RT)
← temp
1:32
250
macchws.
CR[CR0]
macchwso
XER[SO, OV]
macchwso.
CR[CR0]
XER[SO, OV]
macchwsu
RT, RA, RB prod
0:31
← (RA)
16:31
x (RB)
0:15
unsigned
temp
0:32
← prod
0:31
+ (RT)
(RT) ← (temp
1:32
∨
32
temp
0
)
251
macchwsu.
CR[CR0]
macchwsuo
XER[SO, OV]
macchwsuo.
CR[CR0]
XER[SO, OV]
macchwu
RT, RA, RB prod
0:31
← (RA)
16:31
x (RB)
0:15
unsigned
temp
0:32
← prod
0:31
+ (RT)
(RT) ← temp
1:32
252
macchwu.
CR[CR0]
macchwuo
XER[SO, OV]
macchwuo.
CR[CR0]
XER[SO, OV]
machhw
RT, RA, RB prod
0:15
← (RA)
16:31
x (RB)
0:15
signed
temp
0:32
← prod
0:31
+ (RT)
(RT) ← temp
1:32
253
machhw.
CR[CR0]
machhwo
XER[SO, OV]
machhwo.
CR[CR0]
XER[SO, OV]
machhws
RT, RA, RB prod
0:31
← (RA)
0:15
x (RB)
0:15
signed
temp
0:32
← prod
0:31
+ (RT)
if ((prod
0
= RT
0
) ∧ (RT
0
≠ temp
1
)) then
(RT)
← (RT
0
||
31
(¬RT
0
))
else (RT)
← temp
1:32
254
machhws.
CR[CR0]
machhwso
XER[SO, OV]
machhwso.
CR[CR0]
XER[SO, OV]
machhwsu
RT, RA, RB prod
0:31
← (RA)
0:15
x (RB)
0:15
unsigned
temp
0:32
← prod
0:31
+ (RT)
(RT)
← (temp
1:32
∨
32
temp
0
)
255
machhwsu.
CR[CR0]
machhwsuo
XER[SO, OV]
machhwsuo.
CR[CR0]
XER[SO, OV]
machhwu
RT, RA, RB prod
0:31
← (RA)
0:15
x (RB)
0:15
unsigned
temp
0:32
← prod
0:31
+ (RT)
(RT)
← temp
1:32
256
machhwu.
CR[CR0]
machhwuo
XER[SO, OV]
machhwuo.
CR[CR0]
XER[SO, OV]
Table A-1. PPC405 Instruction Syntax Summary (Continued)
Mnemonic Operands Function Other Registers Changed Page