请教：ADC12 模块的问题，急！！！

A0results[index] = ADC12MEM0; // Move A0 results, IFG is cleared

A1results[index] = ADC12MEM1; // Move A1 results, IFG is cleared

A2results[index] = ADC12MEM2; // Move A2 results, IFG is cleared

A3results[index] = ADC12MEM3; // Move A3 results, IFG is cleared

index = (index+1)%Num_of_Results // Increment results index, modulo; Set Breakpoint here

这些指令是什么意思啊？我C学的不是很好，请各位高手指点一二！跪谢啊！