PNX1301EH NXP Semiconductors, PNX1301EH Datasheet - Page 365

• Manufacturer Part Number: PNX1301EH
• Manufacturer: NXP Semiconductors

Specifications of PNX1301EH

• Lead Free Status / RoHS Status: Not Compliant

PNX1300/01/02/11 Data Book
h_dspiabs
SYNTAX
FUNCTION
DESCRIPTION
stores the clipped value into rdest. All values are signed integers. This operation requires a zero as first argument.
The programmer is advised to use the unary pseudo operation
modification of the destination register. If the LSB of rguard is 1, rdest is written; otherwise, rdest is not changed.
EXAMPLES
A-67
r30 = 0xffffffff
r10 = 0, r40 = 0x80000001
r20 = 1, r40 = 0x80000001
r50 = 0x80000000
r90 = 0x7fffffff
The
The
[ IF rguard ] h_dspiabs r0 rsrc2 → rdest
if rguard then {
}
if rsrc2 >= 0 then
else if rsrc2 = 0x80000000 then
else
h_dspiabs
h_dspiabs
rdest ← rsrc2
rdest ← 0x7fffffff
rdest ← –rsrc2
Initial Values
operation computes the absolute value of rsrc2, clips the result into the range [0x0..0x7fffffff], and
operation optionally takes a guard, specified in rguard. If a guard is present, its LSB controls the
PRELIMINARY SPECIFICATION
h_dspiabs r0 r30 → r60
IF r10 h_dspiabs r0 r40 → r70
IF r20 h_dspiabs r0 r40 → r100
h_dspiabs r0 r50 → r80
h_dspiabs r0 r90 → r110
Operation
dspiabs
Clipped signed absolute value
instead.
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
r60 ← 0x00000001
no change, since guard is false
r100 ← 0x7fffffff
r80 ← 0x7fffffff
r110 ← 0x7fffffff
dspiadd dspimul dspisub
dspuadd dspumul dspusub
h_dspiabs dspidualabs
Philips Semiconductors
ATTRIBUTES
SEE ALSO
Result
dspalu
1, 3
No
65
—
2
2