Analog Devices ADSP-BF53x Blackfin Reference page 1038

Index
two's complement format,
two's-complement (vector negate)
instruction, 19-46
two-dimensional loops,
two-operand shift, defined,
U
uimm15 constant, 8-31, 8-34,
uimm16 constant, 8-4
uimm16m2 constant, 8-15, 8-19,
uimm17m4 constant, 8-7, 8-11, 8-37,
uimm18m4 constant, 10-17
uimm3 constant, 11-2,
uimm4 constant, 14-8, 14-15, 16-17,
16-20, 19-23, 19-28
uimm5 constant, 13-2, 13-4, 13-6, 13-8,
14-8, 14-15
uimm5m2 constant, 8-15, 8-19,
uimm6m4 constant, 8-7, 8-11, 8-37,
uimm7m4 constant, 8-7, 8-11, 8-37,
unbiased rounding, 1-19,
unconditional branches
branch latency, 4-21
branch target address,
undefined instruction,
unknown jump (JUMP.0) instruction,
4-11
UNLINK instruction
code sequence, 4-17
syntax, 10-17
unrecoverable event, 4-65
unrolling loops, example,
unsigned fraction operands (TFU)
multiply 16-bit operands instruction,
15-43
multiply and multiply-accumulate to
half-register instruction,
use with multiply instructions, 15-43,
15-58
I-36 ADSP-BF53x/BF56x Blackfin Processor Programming Reference
D-1
4-24
2-49
8-54
8-50
8-41
11-6
8-50
8-41
8-41
2-19
4-21
4-65
4-26
15-58
unsigned integer, D-1
unsigned numbers
data formats, 2-13
defined, 2-4
unsigned operator (FU)
multiply 16-bit operands instruction,
15-43
multiply and multiply-accumulate to
accumulator instruction,
multiply and multiply-accumulate to
data register instruction,
multiply and multiply-accumulate to
half-register instruction,
use with multiply instructions, 15-43,
15-53, 15-58, 15-67
unsigned operator (IU)
multiply 16-bit operands instruction,
15-43
multiply and multiply-accumulate to
half-register instruction,
use with multiply instructions, 15-43,
15-58
upper bits of address for match[21:6] field,
6-59, 6-60
upper bits of address for match[5:0] field,
6-59, 6-60
user_label, 7-3, 7-6, 7-8
user mode
accessible registers, 3-3
accessing MMRs, 6-73
access restriction, 1-4
defined, 3-1
entering, 3-5
leaving, 3-6
memory protection,
protected instructions,
user stack pointer (USP) register. See USP
USP (user stack pointer), 3-7, 5-6,
15-53
15-67
15-58
15-58
6-53
3-4
5-7