汇编B指令问题

求帮忙确认一下
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SPRU430F应用文档第161页开始，EQ是指Zflag =1，NEQ是指Zflag =0, 
After the shift, the Z flag is set if the ACC value is zero, else Z is cleared. Even if the T register specifies a shift of 0, the content of the ACC register is still tested for the zero condition and Z is affected.
Z位的定义，B指令的含义：
Conditional branch. If the specified condition is true, then branch by adding the signed
16-bit constant value to the current PC value; otherwise continue execution without
branching:
If (COND = true) PC = PC + signed 16-bit offset;
If (COND = false) PC = PC + 2;
所以如果此时ACC = 0，那就跳转Dwn_Cnt，如果不等于0，就继续往下走

仔细看刚刚贴出来的这句话：
After the shift, the Z flag is set if the ACC value is zero, else Z is cleared. Even if the T register specifies a shift of 0, the content of the ACC register is still tested for the zero condition and Z is affected.
是如果ACC =0 就跳转