PNX1311EH/G,557 NXP Semiconductors, PNX1311EH/G,557 Datasheet - Page 388

• Manufacturer Part Number: PNX1311EH/G,557
• Description: IC MEDIA PROC 166MHZ 292-HBGA
• Manufacturer: NXP Semiconductors

Specifications of PNX1311EH/G,557

• Applications: Multimedia
• Core Processor: TriMedia
• Controller Series: Nexperia
• Ram Size: 48K x 8
• Interface: I²C, 2-Wire Serial
• Number Of I /o: 169
• Voltage - Supply: 2.375 V ~ 2.625 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 292-HBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Program Memory Type: -
• Other names: 568-1295; 935277721557; PNX1311EH/G

Philips Semiconductors
IEEE status flags from convert floating-point to
integer with round toward zero
SYNTAX
FUNCTION
DESCRIPTION
IEEE floating-point value in rsrc1 to a signed integer, and an integer bit vector representing the computed exception
flags is written into r dest. The bit vector stored in rdest has the same format as the IEEE exception bits in the PCSW.
The exception flags in PCSW are left unchanged by this operation. Rounding toward zero is performed; the IEEE
rounding mode bits in PCSW are ignored. If rsrc1 is denormalized, zero is substituted before computing the
conversion, and the IFZ bit in the result is set.
the modification of the destination register. If the LSB of rguard is 1, rdest is written; otherwise, rdest is not changed.
EXAMPLES
r30 = 0x40400000 (3.0)
r35 = 0x40247ae1 (2.57)
r10 = 0,
r40 = 0xff4fffff (–3.402823466e+38)
r20 = 1,
r40 = 0xff4fffff (–3.402823466e+38)
r45 = 0x7f800000 (+INF))
r50 = 0xbfc147ae (-1.51)
r60 = 0x00400000 (5.877471754e-39)
r70 = 0xffffffff (QNaN)
r80 = 0xffbfffff (SNaN)
The
The
[ IF rguard ] ifixrzflags rsrc1
if rguard then
rdest
ifixrzflags
ifixrzflags
31
0
Initial Values
ieee_flags((long) ((float)rsrc1))
operation computes the IEEE exceptions that would result from converting the single-precision
operation optionally takes a guard, specified in rguard. If a guard is present, its LSB controls
ifixrzflags r30
ifixrzflags r35
IF r10 ifixrzflags r40
IF r20 ifixrzflags r40
ifixrzflags r45
ifixrzflags r50
ifixrzflags r60
ifixrzflags r70
ifixrzflags r80
rdest
Operation
PRELIMINARY SPECIFICATION
7
0
r100
r102
r112
r115
r117
r120
r122
OFZ
6
PNX1300/01/02/11 DSPCPU Operations
r105
r110
IFZ
5
INV
4
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
r100
r102
no change, since guard is false
r110
r112
r115
r117
r120
r122
OVF
3
ifixrz ufixrzflags
0
0x02 (INX)
0x10 (INV)
0x10 (INV)
0x02 (INX)
0x20 (IFZ)
0x10 (INV)
0x10 (INV)
ifixieeeflags
ufixieeeflags
UNF
ATTRIBUTES
2
SEE ALSO
ifixrzflags
Result
INX
1
DBZ
0
129
1, 4
falu
No
—
1
3
A-90