參數(shù)資料
型號(hào): 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): 84/161頁
文件大?。?/td> 1037K
代理商: S1C621A0F0A0100
175
32000D–04/2011
AVR32
LD.SB – Load Sign-extended Byte
Architecture revision:
Architecture revision1 and higher.
Description
Reads the byte memory location specified and sign-extends it.
Operation:
I.
Rd
← SE( *(Rp + (SE(disp16))) );
II.
Rd
← SE( *(Rb + (Ri << sa2)) );
Syntax:
I.
ld.sb
Rd, Rp[disp]
II.
ld.sb
Rd, Rb[Ri<<sa]
Operands:
I.
d, p
∈ {0, 1, …, 15}
disp
∈ {-32768, -32767, ..., 32767}
II.
d, b, i
∈ {0, 1, …, 15}
sa
∈ {0, 1, 2, 3}
Status Flags:
Q:
Not affected.
V:
Not affected.
N:
Not affected.
Z:
Not affected.
C:
Not affected.
Opcode:
Format I:
Format II:
111
Rp
10010
Rd
31
29
28
25
24
20
19
16
disp16
15
0
111
Rb
00000
Ri
31
29
28
25
24
20
19
16
0000011000
Shift Amount
Rd
15
12
11
8
7
6
5
4
3
0
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