PNX1301 PHILIPS [NXP Semiconductors], PNX1301 Datasheet - Page 367

• Manufacturer Part Number: PNX1301
• Description: Media Processors
• Manufacturer: PHILIPS [NXP Semiconductors]

PNX1300/01/02/11 Data Book
h_iabs
SYNTAX
FUNCTION
DESCRIPTION
signed integer; the result is an unsigned integer. This operation requires a zero as first argument. The programmer is
advised to use the
modification of the destination register. If the LSB of rguard is 1, rdest is written; otherwise, rdest is not changed.
EXAMPLES
A-69
r30 = 0xffffffff
r10 = 0, r40 = 0xfffffff4
r20 = 1, r40 = 0xfffffff4
r50 = 0x80000001
r60 = 0x80000000
r20 = 1
The h_
The
[ IF rguard ] h_iabs r0 rsrc2
if rguard then {
}
if rsrc2 < 0 then
else
h_iabs
rdest
rdest
iabs
Initial Values
–rsrc2
rsrc2
operation computes the absolute value of rsrc2 and stores the result into rdest. The argument is a
operation optionally takes a guard, specified in rguard. If a guard is present, its LSB controls the
iabs
PRELIMINARY SPECIFICATION
pseudo operation instead.
h_iabs r0 r30
IF r10 h_iabs r0 r40
IF r20 h_iabs r0 r40
h_iabs r0 r50
h_iabs r0 r60
h_iabs r0 r20
rdest
Operation
r60
r100
r110
r120
r80
r90
Hardware absolute value
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
r60
no change, since guard is false
r90
r100
r110
r120
Philips Semiconductors
0x00000001
0xc
0x7fffffff
0x80000000
1
iabs fabsval
ATTRIBUTES
SEE ALSO
Result
1, 2, 3, 4, 5
alu
No
44
—
2
1