说明：  chm格式 寄存器和处理器模式(26-bit 体系) 寄存器和处理器模式(32-bit 体系) 程序状态寄存器和操纵它的指令 寄存器装载和存储指令 算术和逻辑指令 移位操作 乘法指令 比较指令 分支指令 条件执行 软件中断指令 APCS (ARM 过程调用标准)
(Register and processor mode (26-bit system) registers and processor mode (32-bit system), Program Status Register and manipulation of its instruction register load and store instructions arithmetic and logic instructions compare instructions MUL shift operation conditions for the implementation of branch instruction software interrupt instruction APCS (ARM Procedure Call Standard))