These "instructions" without mnemonic and triggered by macros are used to access call gates and to enter/reenter from protected mode/virtual 86
They are valid, although impossible to use these days except from a boot loader. But Windows will have to use some of them at some point along the boot process which starts in real mode. With UEFI things are a little different, though.
A few of them:
CALL_FAR3232 MACRO sel, _offset, rpl
db 9ah
dd offset _offset
dw offset sel + rpl
ENDM
JMP_FAR3216 MACRO sel, _offset, rpl
db 66h
db 0eah
dw offset _offset
dw offset sel + rpl
ENDM
JMP_FAR1632 MACRO sel, _offset, rpl
db 66h
db 0eah
dd offset _offset
dw offset sel + rpl
ENDM
JMP_FAR3232 MACRO sel, _offset, rpl
db 0eah
dd offset _offset
dw offset sel + rpl
ENDM
JMP_FAR1616 MACRO sel, _offset, rpl
db 0eah
dw offset _offset
dw sel + rpl
ENDM
JMP_FAR_REAL MACRO segmnt, _offset
db 0eah
dw offset _offset
dw segmnt
ENDM