AS3665 datasheet(66/78 Pages) AMSCO

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AS3665

Datasheet, Confidential - Prog ramming S equen ce r C o mmands

Shift Commands

shift left Variable shift a variable left by 1 (multiply by 2) - if the result exceeds 255, 255 is used as result:

shift right Variable shifts a variable right by 1 (divide by 2, rounded to 0):

Table 104. shift left Command

shift left Command

Name

Bits

Bitname

Parameter Description

shift left

Compiler syntax: SL, input variable, output variable;

D15:D9

1000101b

D8:D7

input variable

0ra

1rb

2rc

3rd

D6:D4

000b

D3:D0

output

variable

set ra = <input variable> * 2

set rb = <input variable> * 2

set rc = <input variable> * 2

set rd = <input variable> * 2

other

values

don’t use

Table 105. shift right Command

shift right Command

Name

Bits

Bitname

Parameter Description

shift right

Compiler syntax: SR, input variable, output variable;

D15:D9

1000110b

D8:D7

input variable

0ra

1rb

2rc

3rd

D6:D4

000b

D3:D0

output

variable

set ra = <input variable> / 2

set rb = <input variable> / 2

set rc = <input variable> / 2

set rd = <input variable> / 2

other

values

don’t use

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