verilogHDL中对于变量的定义一般有wire和reg两种,若a为wire型,b为reg型,其余信号不确定,所有信号位宽都是一位的,下面的描述错误的是
A.assign a=b
B.assign b=a
C.assign a=b & c
D.assign a=b ^ c ^ d
E.b <=>
F.b <= a &>
A.assign a=b
B.assign b=a
C.assign a=b & c
D.assign a=b ^ c ^ d
E.b <=>
F.b <= a &>
A、Sub f(ByVal n%, ByVal m%)
B、Sub f(n%, ByVal m%)
C、Sub f(ByVal n%, m%)
D、Sub f(n%, m%)
A.X=0000007FH,y=FFF9H,z=00000076H
B.X=0000007FH,y=FFF9H,z=FFFF0076H
C.X=0000007FH,y=FFF7H,z=FFFF0076H
D.X=0000007FH,y=FFF7H,z=00000076H
A、switch(a*a + b*b) { default: break; case 3: y = a + b; break; case 2: y = a - b; break; }
B、switch(a + b) { case1: case3: y = a + b; break; case0: case4: y = a - b; break; }
C、switch(a + 9) { case a: y = a + b; case b: y = a - b; }
D、switch a * b { case 10: y = a + b; default: y = a - b; }
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