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TMS320F Datasheet(PDF) 186 Page - Texas Instruments

Part # TMS320F
Description  CPU and Instruction Set
PDF  389 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMS320F Datasheet(HTML) 186 Page - Texas Instruments

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LST
Load Status Register
7-86
Syntax
LST #
m, dma
Direct addressing
LST #
m, ind [, ARn]
Indirect addressing
Operands
dma:
7 LSBs of the data-memory address
n:
Value from 0 to 7 designating the next auxiliary register
m:
Select one of the following:
0
Indicates that ST0 will be loaded
1
Indicates that ST1 will be loaded
ind:
Select one of the following seven options:
*
*+
*–
*0+
*0–
*BR0+
*BR0–
LST #0,
dma
15
14
13
12
11
10
987
6543
210
0
0
0
0
1
1
1
0
0
dma
LST #0,
ind [, ARn]
15
14
13
12
11
10
987
6543
210
0
0
0
0
1
1
1
0
1
ARU
N
NAR
Note:
ARU, N, and NAR are defined in section 6.3,
Indirect Addressing Mode (page 6-9).
LST #1,
dma
15
14
13
12
11
10
987
6543
210
0
0
0
0
1
1
1
1
0
dma
LST #1,
ind [, ARn]
15
14
13
12
11
10
987
6543
210
0
0
0
0
1
1
1
1
1
ARU
N
NAR
Note:
ARU, N, and NAR are defined in section 6.3,
Indirect Addressing Mode (page 6-9).
Execution
Increment PC, then ...
(data-memory address)
→ status register STm
For details about the differences between an LST #0 operation and an LST #1
operation, see Figure 7–3, Figure 7–4, and the description category below.
Figure 7–3. LST #0 Operation
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Data
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ST0
ARP
OV
OVM
1
INTM
DP
Opcode



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