4-24
Performance
AMD-K5 Processor Technical Reference Manual
18524C/0—Nov1996
FSCALE
0_0x_11011001_111_xxx
F
fpfill
1/2/8
fadd
1/2/8
FST real_32
0_1x_11011001_010_xxx
M
ld
1/1
fpfill
1/2/4
fmv
1/2/4
st
1/2/5
FST ST(i)
0_0x_11011101_010_xxx
F
fpfill
1/2/4
fmv
1/2/4
FSTP real_32
0_1x_11011001_011_xxx
M
ld
1/1
fpfill
1/2/4
fmv
1/2/4
st
1/2/5
FSTP real_64
0_1x_11011101_011_xxx
M
ld
1/1
ld
1/2
fpfill
1/2/4
fmv
1/2/4
st
2/3/5
st
2/4/6
FSTP real_80
0_1x_11011011_111_xxx
M
ld
1/1
ld
1/2
fpfill
1/2/4
fmv
1/2/4
st
2/3/5
st
2/4/6
FSTP ST(i)
0_0x_11011x01_011_xxx
F
fpfill
1/2/4
fmv
1/2/4
FSUB ST, ST(i)
0_0x_11011000_100_xxx
F
fpfill
1/2/5
fadd
1/2/5
FSUB ST(i), ST
0_0x_11011100_100_xxx
F
fpfill
1/2/5
fadd
1/2/5
FSUB real_32
0_1x_11011000_100_xxx
F
ld
1/1
fpfill
1/3/6
fadd
1/3/6
FSUB real_64
0_1x_11011100_100_xxx
M
ld
1/1
ld
1/2
fpfill
1/4/7
fadd
1/4/7
FSUBP ST(i), ST
0_0x_11011110_100_xxx
F
fpfill
1/2/5
fadd
1/2/5
Table 4-3. Floating-Point Instructions (continued)
Instruction Mnemonic
Opcode Format
Fastpath or
Microcoded
Execution
Unit Timing
Summary of Contents for AMD-K5
Page 1: ...AMD K5 Processor Technical Reference Manual TM...
Page 10: ...x AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 24: ...1 4 Overview AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 54: ...2 30 Internal Architecture AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 116: ...4 26 Performance AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 356: ...6 44 System Design AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 380: ...7 24 Test and Debug AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 396: ...A 16 AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 406: ...I 10 Index AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...