8085微处理器中的SIM和RIM指令之间的区别

设置中断屏蔽(SIM)：
在8085指令集中，SIM代表“设置中断屏蔽”。它是1字节指令，是多用途指令。

SIM指令的主要用途是–

• 屏蔽/取消屏蔽RST7.5，RST6.5和RST5.5
• 重置为0 RST7.5触发器。
• 执行数据的串行输出。

读取中断屏蔽(RIM)：
在8085指令集中，RIM代表“读取中断掩码”。这是一个1字节的多用途指令。

它用于以下目的–

• 检查是否屏蔽了RST7.5，RST6.5和RST5.5。
• 检查是否启用了中断。
• 检查RST7.5，RST6.5或RST5.5中断是否未决。
• 执行数据的串行输入。

8085微处理器中的SIM和RIM指令之间的区别：

Sr. No.	Sim Instruction	Rim Instruction
1	SIM stands for Set Interrupt Mask.	RIM stands for Read Interrupt Mask.
2	It is responsible for masking/unmasking of RST 7.5, RST 6.5 and RST 5.5.	It checks whether RST 7.5, RST 6.5, RST 5.5 are masked or not.
3	It resets to 0 RST 7.5 flip flop.	It checks whether interrupts are enabled or not and to check whether RST 7.5, RST 6.5 or RST 5.5 interrupts are pending or not.
4	The content of the Accumulator decides the action to be taken. So before executing the SIM instruction, it is mandatory to initialize Accumulator with the required value.	The contents of the Accumulator after the execution of the RIM instruction provide this information.Thus, it is essential to look into the Accumulator contents after the RIM instruction is executed.
5	SIM instruction can be used for serial output of data.	RIM instruction can be used for serial input of data.
6	Its opcode(in Hex) is 30.	Its opcode(in Hex) is 20.