AMD K5

4-20 Performance
AMD-K5 Processor Technical Reference Manual 18524C/0—Nov1996
FADDP ST(i), ST 0_0x_11011110_000_xxx F
fpfill 1/2/5
fadd 1/2/5
FCHS 0_0x_11011001_100_xxx F
fpfill 1/2/4
fchs 1/2/4
FCOM ST(i) 0_0x_11011x00_010_xxx F
fpfill 1/2/4
fcmpst 1/2/4
FCOM real_32 0_1x_11011000_010_xxx F
ld 1/1
fpfill 1/3/5
fmv 1/3/5
FCOM real_64 0_1x_11011100_010_xxx M
ld 1/1
ld 1/2
fpfill 1/4/6
fadd 1/4/6
FCOMP ST(i) 0_0x_11011x00_011_xxx F
fpfill 1/2/4
fmv 1/2/4
alu 1/1
FCOMP real_32 0_1x_11011000_011_xxx F
ld 1/1
fpfill 1/3/5
fmv 1/3/5
FCOMP real_64 0_1x_11011100_011_xxx M
ld 1/1
ld 1/2
fpfill 1/4/6
fadd 1/4/6
FCOMPP 0_0x_11011110_011_xxx F
fpfill 1/2/4
fmv 1/2/4
nop 1/1/2
FDECSTP 0_0x_11011001_110_xxx M
alu 1/1/2
alu 1/1/2
FIADD int_16 0_1x_11011110_000_xxx M
ld 1/1
fpfill 1/3/7
fadd 1/3/7
fpfill 2/7/10
fadd 2/7/10
FIADD int_32 0_1x_11011010_000_xxx M
ld 1/1
fpfill 1/3/7
fadd 1/3/7
fpfill 2/7/10
fadd 2/7/10
Table 4-3. Floating-Point Instructions (continued)
Instruction Mnemonic Opcode Format
Fastpath or
Microcoded
Execution
Unit Timing