AMD AMD5K86 - Page 113

AMD~
AMD5J136 Processor Technical Reference Manual
TABLE 4-3. Floating-Point Instructions (continued)
Instruction Mnemonic
Opcode Format
F ADDP ST(i), ST
FCHS
FCOM ST(i)
FCOMreaC32
FCOMreaC64
FCOMP ST(i)
FCOMPP
FDECSTP
FIADD inC16
FIADD inC32
4-20
Fastpath or
Microcoded
F
F
F
F
M
F
F
M
F
M
M
M
18524BjO-Mar1996
Execution
Unit Timing
fpfill 112/5
fadd 1/2/5
fpfill 1/2/4
fchs 112/4
fpfill 1/2/4
fcmpst 112/4
Id 1/1
fpfill 1/3/5
fmv 1/3/5
Id
Id
fpfill
fadd
fpfill
fmv
alu
1/1
1/2
1/4/6
1/4/6
1/2/4
1/2/4
111
Id 1/1
fpfill 113/5
fmv 1/3/5
Id
Id
fpfill
fadd
fpfill
fmv
nop
alu
alu
Id
fpfill
fadd
fpfill
fadd
Id
fpfill
fadd
fpfill
fadd
1/1
1/2
1/4/6
11416
1/2/4
1/2/4
11112
11112
1/1/2
1/1
1/3/7
1/317
2/7/10
2/7/10
111
1/3/7
1/3/7
2/7/10
2/7/10
Performance