ADSP-BF53x/BF56x Blackfin Processor Programming Reference
19-53
Vector Operations
LSETUP (loop_, loop_) LC0=P1>>1 ; /* set up the loop */
loop_: (r1,r0) = SEARCH R2 (LE) || R2=[P0++];
/* search for the last minimum in all but the
last element of the array */
(r1,r0) = SEARCH R2 (LE);
/* finally, search the last element */
/* The lower 16 bits of A1 and A0 contain the last minimums of the
array. R1 contains the value of P0 corresponding to the value in
A1. R0 contains the value of P0 corresponding to the value in A0.
Next, compare A1 and A0 together and R1 and R0 together to find
the single, last minimum in the array.
Note: In this example, the resulting pointers are past the actual
surviving array element due to the post-increment operation. */
cc = a0 <= a1 ;
r0 += -4 ;
r1 += -2 ;
if !cc r0 = r1 ; /* the pointer to the survivor is in r0 */
Also See
Vector MAX
,
Vector MIN
,
MAX
,
MIN
Special Applications
This instruction is used in a loop to locate an element in a vector accord-
ing to the element’s value.
Содержание ADSP-BF53x Blackfin
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Страница 752: ...Examples 20 10 ADSP BF53x BF56x Blackfin Processor Programming Reference...
Страница 780: ...Product Identification Register 21 28 ADSP BF53x BF56x Blackfin Processor Programming Reference...
Страница 790: ...ADSP BF535 Flags A 10 ADSP BF53x BF56x Blackfin Processor Programming Reference...
Страница 800: ...Performance Monitor Registers B 10 ADSP BF53x BF56x Blackfin Processor Programming Reference...
Страница 994: ...Instructions Listed By Operation Code C 194 ADSP BF53x BF56x Blackfin Processor Programming Reference...
Страница 1042: ...Index I 40 ADSP BF53x BF56x Blackfin Processor Programming Reference...