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STRR0,[R1] LDRR0,[R1] STRHR0,[R1] STRBR0,[R1]
流过R1的电流是R2的N倍,R1消耗的功率是R2的N^2倍 流过R1的电流是R2的1/N,R1消耗的功率是R2的1/N 流过R1的电流与R2的相同,R1消耗的功率是R2的1/N^2 流过R1的电流与R2的相同,R1消耗的功率是R2的N倍
ABS(R1)>ABS(R2) R1>R2 SIN(R2)>SIN(R1) LN(R1)>LN(R2)
I1 =R1 I/(R1 +R2 ) I1 =R2 I/(R1 +R2 ) I1 =R1 I/(R1 ×R2 ) I1 =(R1 +R2 ) I/R1
r1+r2 r1×r2 ≤r1×r2 ≥r1×r2
r1+r2 ri*r2 ≤r1*r2 ≥r1*r2
DIVR0,R1;(R0)/(R1)→R0 INTn;产生软中断 NOTR0;寄存器R0的内容取非 MOVR0,addr;把地址处的内存数据放入寄存器R0中
ABS(R1) >ABS(R2) R1>R2 SIN(R2) >SIN(R1) LN(R1) >LN(R2)
I[R2 /(R1 +R2)] I[R1 /(R1 +R2)] I I[1 /(R1 +R2)]