tm1300 NXP Semiconductors, tm1300 Datasheet - Page 376

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

TM1300 Data Book
iflip
SYNTAX
FUNCTION
DESCRIPTION
of r src2 . All values are 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-90
r30 = 0, r40 = 1
r10 = 0, r60 = 0xffff0000, r70 = 0xabc
r20 = 1, r60 = 0xffff0000, r70 = 0xabc
r30 = 0, r100 = 0xffffff9c
r40 = 1, r110 = 0xffffffff
The
The
[ IF r guard ] iflip r src1 r src2
if r guard then {
}
if r src1 = 0 then
else
iflip
iflip
r dest
r dest
Initial Values
r src2
–r src2
operation copies r src2 to r dest if r src1 = 0; otherwise (if r src1 != 0), r dest is set to the two’s-complement
operation optionally takes a guard, specified in r guard . If a guard is present, its LSB controls the
PRODUCT SPECIFICATION
iflip r30 r40
IF r10 iflip r60 r70
IF r20 iflip r60 r70
iflip r30 r100
iflip r40 r110
r dest
Operation
r50
r110
r120
r80
r90
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
r50
no change, since guard is false
r90
r110
r120
If non-zero negate
Philips Semiconductors
0x1
0xfffff544
0xffffff9c
0x1
inonzero izero
ATTRIBUTES
SEE ALSO
Result
dspalu
1, 3
No
77
—
2
2