FDECSTP

X87_ALU X87 x86_64

2 encoding forms.

X86_FDECSTP_X86_LEGACY_ONEBYTE_D9_0
(no syntax)
X86_LEGACY D9 FPU
XED_FDECSTP_X86_LEGACY_ONEBYTE_D9_517061
REG0=XED_REG_X87STATUS:rw:SUPP
X86_LEGACY D9 /6 X87