tm1300 NXP Semiconductors, tm1300 Datasheet - Page 407

• Manufacturer Part Number: tm1300
• Description: Tm-1300 Media Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
If nonzero select zero
SYNTAX
FUNCTION
DESCRIPTION
operands are considered signed integers.
modification of the destination register. If the LSB of r guard is 1, r dest is written; otherwise, r dest is not changed.
EXAMPLES
r30 = 2, r20 = 1
r10 = 0, r60 = 0x100, r30 = 2
r20 = 1, r60 = 0x100, r40 = 0xffffff9c
r10 = 0, r40 = 0xffffff9c
r20 = 1, r60 = 0x100
r10 = 0, r70 = 0x456789
The
The
[ IF r guard ] inonzero r src1 r src2
if r guard then {
}
if r src1 != 0 then
else
inonzero
inonzero
r dest
r dest
Initial Values
0
r src2
operation writes 0 into r dest if the value of r src1 is not zero; otherwise, r src2 is copied to r dest . The
operation optionally takes a guard, specified in r guard . If a guard is present, its LSB controls the
inonzero r30 r20
IF r10 inonzero r60 r30
IF r20 inonzero r60 r40
inonzero r10 r40
inonzero r20 r60
inonzero r10 r70
r dest
Operation
PRODUCT SPECIFICATION
r80
r100
r110
r120
r50
r90
DSPCPU Operations for TM1300
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
r80
no change, since guard is false
r90
r100
r110
r120
0
0
0xffffff9c
0
0x456789
izero iflip
ATTRIBUTES
SEE ALSO
Result
inonzero
1, 2, 3, 4, 5
alu
No
47
—
2
1
A-121