Intel Itanium 9150M, Manual

Page: 82 / 420

Volume 3: Instruction Reference 3:73
fcvt.xuf
fcvt.xuf — Convert Unsigned Integer to Floating-point
Format: (
qp
) fcvt.xuf. pc . sf
f
1
=
f
3
pseudo-op of: (
qp
) fma.
pc
.
sf f
1
=
f
3
, f1, f0
Description:
FR
f
3
is multiplied with FR 1, rounded to the precision indicated by
pc
(and possibly
FPSR. sf . pc and FPSR. sf . wre ) using the rounding mode specified by FPSR. sf . rc , and
placed in FR
f
1
.
Note: Multiplying FR
f
3
with FR 1 (a 1.0) normalizes the canonical representation of an
integer in the floating-point register file producing a normal floating-point
value.
If FR
f
3
is a NaTVal, FR
f
1
is set to NaTVal instead of the computed result.
The mnemonic values for the opcode’s
pc
are given in Table 2-22 on page 3:56 . The
mnemonic values for
sf
are given in Table 2-23 on page 3:56 . For the encodings and
interpretation of the status field’s pc , wre , and rc , refer to Table 5-5 and Table 5-6 on
page 1:90 .
Operation: See “fma — Floating-point Multiply Add” on page 3:77 .