ADSP-BF53x/BF56x Blackfin Processor Programming Reference
19-33
Vector Operations
Flags Affected
This instruction affects flags as follows.
•
AZ
is set if either or both result is zero; cleared if both are nonzero.
•
AN
is set if either or both result is negative; cleared if both are
non-negative.
•
V
is cleared.
• All other flags are unaffected.
L
The ADSP-BF535 processor has fewer
ASTAT
flags and some flags
operate differently than subsequent Blackfin family products. For
more information on the ADSP-BF535 status flags, see
Table A-1
on page A-3
.
Required Mode
User & Supervisor
Parallel Issue
This instruction can be issued in parallel with specific other 16-bit
instructions. For details, see
“Issuing Parallel Instructions” on page 20-1
.
Example
r7 = max (r1, r0) (v) ;
• Assume
R1
= 0x0007 0000 and
R0
= 0x0000 000F, then
R7
=
0x0007 000F.
• Assume
R1
= 0xFFF7 8000 and
R0
= 0x000A 7FFF, then
R7
=
0x000A 7FFF.
• Assume
R1
= 0x1234 5678 and
R0
= 0x0000 000F, then
R7
=
0x1234 5678.
Содержание ADSP-BF53x Blackfin
Страница 38: ...Conventions xxxviii ADSP BF53x BF56x Blackfin Processor Programming Reference...
Страница 134: ...System Reset and Powerup 3 18 ADSP BF53x BF56x Blackfin Processor Programming Reference...
Страница 324: ...Instruction Overview 7 20 ADSP BF53x BF56x Blackfin Processor Programming Reference...
Страница 486: ...Instruction Overview 13 28 ADSP BF53x BF56x Blackfin Processor Programming Reference...
Страница 512: ...Instruction Overview 14 26 ADSP BF53x BF56x Blackfin Processor Programming Reference...
Страница 604: ...Instruction Overview 15 92 ADSP BF53x BF56x Blackfin Processor Programming Reference...
Страница 688: ...Instruction Overview 18 48 ADSP BF53x BF56x Blackfin Processor Programming Reference...
Страница 742: ...Instruction Overview 19 54 ADSP BF53x BF56x Blackfin Processor Programming Reference...
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...