FIST

X87_ALU X87 x86_64

2 encoding forms.

XED_FIST_X86_LEGACY_ONEBYTE_DB_452648
MEM0:w:mem32int REG0=XED_REG_ST0:r:IMPL:f80 REG1=XED_REG_X87STATUS:w:SUPP
X86_LEGACY DB /2 X87
XED_FIST_X86_LEGACY_ONEBYTE_DF_564359
MEM0:w:mem16int REG0=XED_REG_ST0:r:IMPL:f80 REG1=XED_REG_X87STATUS:w:SUPP
X86_LEGACY DF /2 X87