單項(xiàng)選擇題
仔細(xì)閱讀如下代碼,其中A_in, B_in為三位無(wú)符號(hào)二進(jìn)制數(shù)的原碼,請(qǐng)從下列選中選出正確的選項(xiàng) module ASF (data_out, A_in, B_in, Mod) ; input [2:0] A_in, B_in; input Mod; output [3:0] data_out; reg [3:0] data_out; always @(A_in, B_in, Mod) begin
A、若輸入A_in = 2, B_in=1,Mod = 0,則data_out=1
B、若輸入A_in = 3, B_in=1,Mod = 0,則data_out=-2
C、若輸入A_in = 2, B_in=2,Mod = 0,則data_out=0
D、若輸入A_in = 2, B_in=2,Mod = 1,則data_out=4
E、若輸入A_in = 3, B_in=1,Mod = 1,則data_out=2
F、若輸入A_in = 0, B_in=2,Mod = 1,則data_out=-2
G、若輸入A_in =1, B_in=2,Mod = 1,則data_out=3