FST

X87_ALU X87 x86_64

4 encoding forms.

X86_FST_X86_LEGACY_ONEBYTE_DD_10310
st(i)
X86_LEGACY DD FPU
XED_FST_X86_LEGACY_ONEBYTE_D9_689732
MEM0:w:mem32real REG0=XED_REG_ST0:r:IMPL:f80 REG1=XED_REG_X87STATUS:w:SUPP
X86_LEGACY D9 /2 X87
XED_FST_X86_LEGACY_ONEBYTE_DD_155858
REG0=X87():w:f80 REG1=XED_REG_ST0:r:IMPL:f80 REG2=XED_REG_X87STATUS:w:SUPP
X86_LEGACY DD /2 X87
XED_FST_X86_LEGACY_ONEBYTE_DD_674784
MEM0:w:m64real REG0=XED_REG_ST0:r:IMPL:f80 REG1=XED_REG_X87STATUS:w:SUPP
X86_LEGACY DD /2 X87