AMD-K6 Datasheet, PDF (88/346 Pages) Advanced Micro Devices – AMD-K6 Processor

AMD-K6^® Processor Data Sheet
Preliminary Information
20695H/0—March 1998
Table 11. Floating-Point Instructions (continued)
Instruction Mnemonic
First Second ModR/M Decode
Byte Byte
Byte
Type
RISC86^®
Opcodes
Note
FISTP mem16int
DFh
mm-011-xxx short fload, float
FISTP mem32int
DBh
mm-011-xxx short fload, float
FISTP mem64int
DFh
mm-111-xxx short fload, float
FISUB ST(0), mem32int
DAh
mm-100-xxx short fload, float
FISUB ST(0), mem16int
DEh
mm-100-xxx short fload, float
FISUBR ST(0), mem32int
DAh
mm-101-xxx short fload, float
FISUBR ST(0), mem16int
DEh
mm-101-xxx short fload, float
FLD ST(i)
D9h
11-000-xxx short fload, float
*
FLD mem32real
D9h
mm-000-xxx short fload, float
FLD mem64real
DDh
mm-000-xxx short fload, float
FLD mem80real
DBh
mm-101-xxx vector
FLD1
D9h E8h
short fload, float
FLDCW
D9h
mm-101-xxx vector
FLDENV
D9h
mm-100-xxx short fload, float
FLDL2E
D9h EAh
short float
FLDL2T
D9h E9h
short float
FLDLG2
D9h ECh
short float
FLDLN2
D9h EDh
short float
FLDPI
D9h EBh
short float
FLDZ
D9h EEh
short float
FMUL ST(0), ST(i)
D8h
11-001-xxx short float
*
FMUL ST(i), ST(0)
DCh
11-001-xxx short float
*
FMUL ST(0), mem32real
D8h
mm-001-xxx short fload, float
FMUL ST(0), mem64real
DCh
mm-001-xxx short fload, float
FMULP ST(0), ST(i)
DEh
11-001-xxx short float
FNOP
D9h D0h
short float
FPATAN
D9h F3h
short float
FPREM
D9h F8h
short float
FPREM1
D9h F5h
short float
FPTAN
D9h F2h
vector
FRNDINT
D9h FCh
short float
Note:
* The last three bits of the modR/M byte select the stack entry ST(i).
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Software Environment
Chapter 3