FISUBR

X87_ALU X87 x86_64

2 encoding forms.

XED_FISUBR_X86_LEGACY_ONEBYTE_DA_431249
REG0=XED_REG_ST0:rw:IMPL:f80 MEM0:r:mem32int REG1=XED_REG_X87STATUS:w:SUPP
X86_LEGACY DA /5 X87
XED_FISUBR_X86_LEGACY_ONEBYTE_DE_369472
REG0=XED_REG_ST0:rw:IMPL:f80 MEM0:r:mem16int REG1=XED_REG_X87STATUS:w:SUPP
X86_LEGACY DE /5 X87