80287 Coprocessor Instruction Set; Data Transfer - IBM 5170 Technical Reference

The physical addresses of all operands addressed by the BP
register are computed using the
SS
segment
re~ster.
The physical
aadresses of the destination operands of the string primitive
operations (those addressed by the DI register) are computed
using the
ES
segment, which may not be overridden.
80287 Coprocessor Instruction Set
The following is an instruction set summary for the 80287
coprocessor.
Data Transfer
FLD
=
Load
Integer/Real Memory to ST(O)
I
escape MF 1
I
mod 000
rim
Long Integer Memory to ST(O)
I
escape 111
I
mod 101
rim
Temporary Real Memory to ST(O)
I
escape 011
I
mod 101
rim
BCD Memory to ST(O)
I
escape 111
I
mod 100
rim
STIi) to ST(O)
I
escape 001
I
11000ST(i)
FST
=
Store
ST(O) to Integer/Real Memory
I
escape MF 1
I
mod 010
rim
ST(O) to ST(i)
I
escape 101
I
11010ST(i)
6-24 Instruction Set