Comparison - IBM XT 5160 Technical Reference

FST
=
Store
ST(O) to Integer/Real Memory
escape MF 1 mod 010 rim disp-low disp-high
ST(O) to ST(i)
escape 101 11010 ST(i)
FSTP
=
Store and Pop
ST(O) to Integer/Real Memory
escape MF
1
mod 011 rim disp-low disp-high
ST(O) to Long Integer Memory
escape 111 mod 111 rim disp-low disp-high
ST(O) to Temporary Real Memory
escape 011 mod 111 rim disp-low disp-high
ST{O) to
BCD
Memory
escape 111 mod 110 rim
disp-low disp-high
ST(O) to ST(i)
escape 101 11011 ST(
i)
FXCH
=
Exchange ST(i) and ST(O)
I
escape
001
I
11001 ST(i)
Comparison
FCOM
=
Compare
Integer/Real Memory to ST(O)
escape MF 0
mod 010 rim disp-low disp-high
Instruction Set 6-25