Dispatch and Execution Timing
4-25
18524C/0—Nov1996
AMD-K5 Processor Technical Reference Manual
FSUBR ST, ST(i)
0_0x_11011000_101_xxx
F
fpfill
1/2/5
fadd
1/2/5
FSUBR ST(i), ST
0_0x_11011100_101_xxx
F
fpfill
1/2/5
fadd
1/2/5
FSUBR real_32
0_1x_11011000_101_xxx
F
ld
1/1
fpfill
1/3/6
fadd
1/3/6
FSUBR real_64
0_1x_11011100_101_xxx
M
ld
1/1
ld
1/2
fpfill
1/4/7
fadd
1/4/7
FSUBRP ST(i), ST
0_0x_11011110_101_xxx
F
fpfill
1/2/5
fadd
1/2/5
FTST
0_0x_11011001_100_xxx
F
fpfill
1/2/4
fmv
1/2/4
FUCOM ST(i)
0_0x_11011101_100_xxx
F
fpfill
1/2/4
fmv
1/2/4
FUCOMP ST(i)
0_0x_11011101_101_xxx
F
fpfill
1/2/4
fmv
1/2/4
nop
1/1
FUCOMPP
0_0x_11011010_101_xxx
F
fpfill
1/2/4
fmv
1/2/4
nop
1/1
FWAIT
0_xx_10011011_xxx_xxx
F
alu
1/1
FXAM
0_0x_11011001_100_xxx
F
fpfill
1/2/4
fmv
1/2/4
FXCH ST(i)
0_0x_11011001_001_xxx
F
brn
1/1
FXTRACT
0_0x_11011001_110_xxx
M
fpfill
1/2/4
fmv
1/2/4
fpfill
2/3/11
fadd
2/3/11
fpfill
3/4/6
fmv
3/4/6
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...