Texas Instruments TMS320C54x User Manual page 169

.struct/.endstruct/.tag
Example 1
1
2 0000
3 0001
4 0002
5
6 000000 0001–
7
8
9 000000
Example 2
10
11 0000
12 0002
13 0004
14
15
16
17 000002
18
19 000001 0002–
20 000002 8002–
21
22 000003 0104–
Example 3
1
2
3 0000
4 0001
5 0002
6 0003
Example 4
1
2 0000
3 0040
4 0040
5 0041
6 0042
7 0043
8
9
10 000000 0040–
11 000001 f030
000002 007f
12
13 000000
4-86
Declare Structure Types
REAL_REC .struct
NOM .int
DEN .int
REAL_LEN .endstruct
ADD
.bss REAL, REAL_LEN
CPLX_REC .struct
REALI .tag REAL_REC
IMAGI .tag REAL_REC
CPLX_LEN .endstruct
COMPLEX .tag CPLX_REC
.bss COMPLEX, CPLX_LEN
ADD COMPLEX.REALI, A
STL A, COMPLEX.REALI
ADD COMPLEX.IMAGI, B
.struct
X .int
Y .int
Z .int
.endstruct
BIT_REC .struct
STREAM .string 64
BIT7 .field
BIT9 .field
BIT10 .field
X_INT .int
BIT_LEN .endstruct
BITS .tag BIT_REC
ADD BITS.BIT7, A
AND #007Fh, A
.bss BITS, BIT_REC
REAL + REAL_REC.DEN, A
7
9
10
; stag
; member1 = 0
; member2 = 1
; real_len = 2
; access structure element
; allocate mem rec
; stag
; member1 = 0
; cplx_len = 4
; assign structure attrib
; access structure
; allocate space
; no stag puts mems into
; global symbol table
; create 3 dim templates
; stag
; bits1 = 64
; bits2 = 64
; bits3 = 65
; x_int = 66
; length = 67
; move into acc
; mask off garbage bits