minix/lib/ack/i386/em/disconnected/em_cfi.s

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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .cfi
.sect .text
.cfi:
mov bx,sp
fstcw 4(bx)
wait
mov dx,4(bx)
or 4(bx),0xc00 ! truncating mode
wait
fldcw 4(bx)
cmp 8(bx),4
jne 2f
! loc 4 loc ? cfi
flds 12(bx)
fistpl 12(bx)
1:
mov 4(bx),dx
wait
fldcw 4(bx)
ret
2:
! loc 8 loc ? cfi
fldd 12(bx)
fistpl 16(bx)
jmp 1b