Texas Instruments TMS320C2XX User Manual
Page 192
Branch Unconditionally
B
7-39
Assembly Language Instructions
Syntax
B
pma [, ind [, ARn] ]
Indirect addressing
Operands
pma:
16-bit program-memory address
n:
Value from 0 to 7 designating the next auxiliary register
ind:
Select one of the following seven options:
* *+ *– *0+ *0– *BR0+ *BR0–
B
pma [, ind [, ARn] ]
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
1
1
1
1
0
0
1
1
ARU
N
NAR
pma
Note:
ARU, N, and NAR are defined in Section 6.3,
Indirect Addressing Mode (page 6-9).
Execution
pma
→
PC
Modify (current AR) and (ARP) as specified.
Status Bits
None
Description
The current auxiliary register and ARP contents are modified as specified, and
control is passed to the designated program-memory address (pma). The pma
can be either a symbolic or numeric address.
Words
2
Cycles for a Single B Instruction
ROM
DARAM
SARAM
External
4
4
4
4+4p
Note:
When this instruction reaches the execute phase of the pipeline, two additional instruc-
tion words have entered the pipeline. When the PC discontinuity is taken, these two
instruction words are discarded.
Example
B
191,*+,AR1
The value 191 is loaded into the program counter, and the program continues
to execute from that location. The current auxiliary register is incremented by
1, and ARP is set to point to auxiliary register 1 (AR1).
Opcode
Cycles