參數(shù)資料
型號: S1C621A0F0A0100
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 44/161頁
文件大?。?/td> 1037K
代理商: S1C621A0F0A0100
139
32000D–04/2011
AVR32
BFEXTS – Bitfield extract and sign-extend
Architecture revision:
Architecture revision1 and higher.
Description
This instruction extracts and sign-extends the w5 bits in Rs starting at bit-offset bp5 to Rd.
Operation:
I.
Rd
← SE(Rs[bp5+w5-1:bp5]);
Syntax:
I.
bfexts
Rd, Rs, bp5, w5
Operands:
I.
{d, s}
∈ {0, 1, …, 15}
{bp5, w5}
∈ {0, 1, ..., 31}
Status Flags:
Q:
Not affected
V:
Not affected
N:
N
← RES[31]
Z:
Z
← (RES[31:0] == 0)
C:
C
← RES[31]
Opcode:
Format I:
Note:
If (w5 = 0) or if (bp5 + w5 > 32) the result is undefined.
111
Rd
11101
Rs
31
29
28
25
24
20
19
16
101100
bp5
w5
15
12
11
10
9
5
4
0
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