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Individual Instruction Descriptions
4-165
Assembly Language Instructions
4.14.70
SHLS
Shift Left Accumulator String to Product
Syntax
[label]
name
dest
Clock,
clk
Word,
w
With RPT,
clk
Class
SHLS
A
n[~]
n
S
+3
1
n
R
+3
3
Execution
PH, PL
⇐
src << SV
PC
⇐
PC + 1
Flags Affected
OF, SF, ZF, CF are set accordingly
Opcode
Instructions
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SHLS A
n[~]
1
1
1
0
0
1
1
A
n
1
1
1
1
1
0
A~
0
Description
Shift accumulator string value left n
SV
bits (as specified by the SV register) into
a ((n
S
+ 2) x 16) -bit result. The result is zero-filled or sign-extended on the left
(based on the setting of the extended sign mode (XM) bit in the status register).
The upper 16 bits are latched into the PH register. Accumulator content is not
changed. The lower 16-bit value is discarded. SHLS instruction can be used
with RPT instructions, but the string length used will be n
S
+ 2.
See Also
SHLS
Example 4.14.70.1
SHLS A0
Shift accumulator string A0 to the left. Accumulator content is not changed. PH contains the upper 16
bits of the shifted result.
Summary of Contents for MSP50C614
Page 1: ...MSP50C614 Mixed Signal Processor User s Guide SPSU014 January 2000 Printed on Recycled Paper ...
Page 6: ...vi ...
Page 92: ...3 22 ...
Page 300: ...Instruction Set Summay 4 208 Assembly Language Instructions ...
Page 314: ...Software Emulator 5 14 Figure 5 13 Project Menu Figure 5 14 Project Open Dialog ...
Page 325: ...Software Emulator 5 25 Code Development Tools Figure 5 25 EPROM Programming Dialog ...
Page 331: ...Software Emulator 5 31 Code Development Tools Figure 5 31 Context Sensitive Help System ...
Page 368: ...5 68 ...
Page 394: ...7 12 ...
Page 402: ...A 8 ...
Page 412: ...Packaging B 10 ...