FABS

X87_ALU X87 x86_64

2 encoding forms.

X86_FABS_X86_LEGACY_ONEBYTE_D9_0
(no syntax)
X86_LEGACY D9 FPU
XED_FABS_X86_LEGACY_ONEBYTE_D9_456736
REG0=XED_REG_ST0:rw:SUPP:f80 REG1=XED_REG_X87STATUS:w:SUPP
X86_LEGACY D9 /4 X87