4 Instruction tables - Agner Fog

Prescott
Other
FNOP 1 0 1 0 1 0 mov 87
(F)WAIT 2 0 0 0 1 0 mov 87
FNCLEX 1 4 120 1 87
FNINIT 1 30 200 87
FNSAVE 2 181 500 0,1 87
FRSTOR 2 96 570 87
FXSAVE 2 121 160 sse i
FXRSTOR
Notes:
2 118 244 sse i
e) Not available on PMMX
f)
The latency for FLDCW is 3 when the new value loaded is the same as the
value of the control word before the preceding FLDCW, i.e. when alternating
between the same two values. In all other cases, the latency and reciprocal
throughput is > 100.
g)
h) Throughput of FP-MUL unit is reduced during the use of the FP-DIV unit.
i)
Takes fewer microcode μops when XMM registers are disabled, but the
throughput is the same.
Integer MMX and XMM instructions
Instruction Operands
Latency and reciprocal throughput depend on the precision setting in the F.P.
control word. Single precision: 32, double precision: 40, long double precision
(default): 45.
μops
Microcode
Latency
Page 151
Additional latency
Reciprocal throughput
Move instructions
MOVD r32, mm 2 0 6 1 1 0 fp mmx
MOVD mm, r32 1 0 3 1 1 1 mmx alu mmx
MOVD mm,m32 1 0 1 2 load mmx
MOVD r32, xmm 1 0 7 1 1 0 fp sse2
MOVD xmm, r32 2 0 4 1 2 1 mmx shift sse2
MOVD xmm,m32 1 0 1 2 load sse2
MOVD m32, r 2 0 2 0,1 mmx
MOVQ mm,mm 1 0 7 0 1 0 mov mmx
MOVQ xmm,xmm 1 0 2 1 2 1 mmx shift sse2
MOVQ r,m64 1 0 1 2 load mmx
MOVQ m64,r 2 0 2 0 mov mmx
MOVDQA xmm,xmm 1 0 7 0 1 0 mov sse2
MOVDQA xmm,m 1 0 1 2 load sse2
MOVDQA m,xmm 2 0 2 0 mov sse2
MOVDQU xmm,m 4 0 23 2 load sse2 k
MOVDQU m,xmm 4 2 8 0 mov sse2 k
LDDQU xmm,m 4 0 2.5 2 load sse3
MOVDQ2Q mm,xmm 3 0 10 1 2 0,1 mov-mmx sse2
Port
Execution unit
Subunit
Instruction set
Notes