AMD-K6-2E Datasheet, PDF (95/332 Pages) Advanced Micro Devices – AMD-K6™-2E Embedded Processor

22529B/0—January 2000
Preliminary Information
AMD-K6™-2E Processor Data Sheet
Table 13. Floating-Point Instructions (continued)
Instruction Mnemonic
FNOP
FPATAN
FPREM
FPREM1
FPTAN
FRNDINT
FRSTOR
FSAVE
FSCALE
FSIN
FSINCOS
FSQRT (single precision)
FSQRT (double precision)
FSQRT (extended precision)
FST mem32real
FST mem64real
FST ST(i)¹
FSTCW
FSTENV
FSTP mem32real
FSTP mem64real
FSTP mem80real
FSTP ST(i)¹
FSTSW AX
FSTSW mem16
FSUB ST(0), mem32real
FSUB ST(0), mem64real
FSUB ST(0), ST(i)¹
FSUB ST(i), ST(0)¹
FSUBP ST(0), ST(i)¹
FSUBR ST(0), mem32real
FSUBR ST(0), mem64real
FSUBR ST(0), ST(i)¹
FSUBR ST(i), ST(0)¹
First Second
Byte Byte
D9h
D0h
D9h
F3h
D9h
F8h
D9h
F5h
D9h
F2h
D9h
FCh
DDh
DDh
D9h
FDh
D9h
FEh
D9h
FBh
D9h
FAh
D9h
FAh
D9h
FAh
D9h
DDh
DDh
D9h
D9h
D9h
DDh
D9h
DDh
DFh
E0h
DDh
D8h
DCh
D8h
DCh
DEh
D8h
DCh
D8h
DCh
ModR/M
Byte
mm-100-xxx
mm-110-xxx
mm-010-xxx
mm-010-xxx
11-010-xxx
mm-111-xxx
mm-110-xxx
mm-011-xxx
mm-011-xxx
mm-111-xxx
11-011-xxx
mm-111-xxx
mm-100-xxx
mm-100-xxx
11-100-xxx
11-101-xxx
11-101-xxx
mm-101-xxx
mm-101-xxx
11-100-xxx
11-101-xxx
Decode RISC86
Type Operations
short float
short float
short float
short float
vector
short float
vector
vector
short float
short float
vector
short float
short float
short float
short fstore
short fstore
short fstore
vector
vector
short
short
vector
fstore
fstore
short float
vector
vector
short
short
fload, float
fload, float
short float
short float
short float
short fload, float
short fload, float
short float
short float
Chapter 3
Software Environment
77