目录
rshc R
C Z
C
Z
{R, C} = {C, R} Z = R ? 0 : 0
带状态C对寄存器R右移1位,结果存储到寄存器R;
rshc A, R
{A, C} = {C, R} Z = A ? 0 : 0
带状态C对寄存器R右移1位,结果存储到累加器A;