Texas Instruments C28 Series Student Guide

Program Control
BANZ Loop Control Example
len
len
.set 5
.set 5
x
x
.
.
usect
usect
“samp”,6
“samp”,6
y
y
.set (x+
.set (x+
len
len
)
)
.sect “code”
.sect “code”
MOVL XAR2,#x
MOVL XAR2,#x
MOV AR3,#len
MOV AR3,#len
-
-
2
2
MOV AL,*XAR2++
MOV AL,*XAR2++
sum:
sum:
ADD AL,*XAR2++
ADD AL,*XAR2++
BANZ
BANZ
sum,AR3
sum,AR3
--
--
MOV *(0:y),AL
MOV *(0:y),AL
AR3
AR3
COUNT
COUNT
Data
Data
x0
x0
x1
x1
x2
x2
x3
x3
x4
x4
x
x
y
y
XAR2
XAR2
∑
=
=
4
0n
n
xy


Auxliary
Auxliary
register used as loop counter
register used as loop counter


Branch if
Branch if
Auxilary
Auxilary
Register not zero
Register not zero


Test performed on lower 16
Test performed on lower 16
-
-
bits of
bits of
XARx
XARx
only
only
C28x - Appendix C - Assembly Programming C - 5

Texas Instruments C28 Series Specifications

General

Brand	Texas Instruments
Model	C28 Series
Category	Computer Hardware
Language	English