4 Instruction tables - Agner Fog
4 Instruction tables - Agner Fog
4 Instruction tables - Agner Fog
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Sandy Bridge<br />
CALL m 3 2 1 2 1 2<br />
RET 2 2 1 1 2<br />
RET i 3 2 1 1 2<br />
BOUND r,m 15 13 7 not 64 bit<br />
INTO 4 4 6 not 64 bit<br />
String instructions<br />
LODS 3 2 1 1<br />
REP LODS 5n+12 ~2n<br />
STOS 3 1 1 1 1<br />
REP STOS 2n n<br />
worst<br />
case<br />
REP STOS 1.5/16B 1/16B best case<br />
MOVS 5 4<br />
REP MOVS 2n 1.5 n<br />
REP MOVS 3/16B 1/16B best case<br />
SCAS 3 1<br />
REP SCAS 6n+47 2n+45<br />
CMPS 5 4<br />
REP CMPS 8n+80 2n+80<br />
Other<br />
NOP (90) 1 0 0.25<br />
Long NOP (0F 1F) 1 0 0.25<br />
PAUSE 7 7 11<br />
ENTER a,0 12 10 2 1 8<br />
ENTER a,b 49+6b 84+3b<br />
LEAVE 3 3 1 7<br />
CPUID 31-75 100-250<br />
RDTSC 21 28<br />
RDPMC 35 42<br />
Move instructions<br />
FLD r 1 1 1 1 1<br />
FLD m32/64 1 1 1 3 1<br />
FLD m80 4 2 1 1 2 4 2<br />
FBLD m80 43 40 3 45 21<br />
FST(P) r 1 1 1 1 1<br />
FST(P) m32/m64 1 1 1 4 1<br />
FSTP m80 7 3 2 2 5 5<br />
Page 123<br />
worst<br />
case<br />
decode<br />
only 1 per<br />
clk<br />
Floating point x87 instructions<br />
<strong>Instruction</strong> Operands μops μops unfused domain Latency ReciCom- fused p015 p0 p1 p5 p23 p4<br />
doprocalthroughmentsmainput
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