tm1300 NXP Semiconductors, tm1300 Datasheet - Page 410

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

TM1300 Data Book
izero
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
A-124
r30 = 2, r20 = 1
r10 = 0, r60 = 0x100, r30 = 2
r20 = 1, r60 = 0x100, r40 = 0xffffff9c
r10 = 0, r40 = 0xffffff9c
r20 = 1, r60 = 0x100
r20 = 1, r70 = 0x456789
The
The
[ IF r guard ] izero r src1 r src2
if r guard then {
}
if r src1 = 0 then
else
izero
izero
r dest
r dest
Initial Values
0
r src2
operation writes 0 into r dest if the value of r src1 is equal to 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
PRODUCT SPECIFICATION
izero r30 r20
IF r10 izero r60 r30
IF r20 izero r60 r40
izero r10 r40
izero r20 r60
izero r20 r70
r dest
Operation
r80
r100
r110
r120
r50
r90
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
r80
no change, since guard is false
r90
r100
r110
r120
Philips Semiconductors
1
0xffffff9c
If zero select zero
0
0x100
0x456789
inonzero iflip
ATTRIBUTES
SEE ALSO
Result
1, 2, 3, 4, 5
alu
No
46
—
2
1