Contents
- 1 What is the function of RIM and SIM instruction in 8085?
- 2 What is the use of SIM instruction in 8085?
- 3 What are the classifications of instructions for 8085 microprocessor?
- 4 What is the size of RIM and SIM instruction?
- 5 Which rims are used in heavier vehicles?
- 6 What holds the tire to the rim?
- 7 How many types of instructions are there in 8085?
- 8 Which interrupt is suitable if I have to use SIM instruction?
- 9 When to use SIM and rim in microprocessor?
- 10 What does rim instruction in 8085 do to accumulator?
What is the function of RIM and SIM instruction in 8085?
In 8085 Instruction set, SIM stands for “Set Interrupt Mask”. It is 1-Byte instruction and it is a multi-purpose instruction. Reset to 0 RST7. 5 flip-flop….Difference between SIM and RIM instructions in 8085 microprocessor:
| Sr. No. | Sim Instruction | Rim Instruction |
|---|---|---|
| 5 | SIM instruction can be used for serial output of data. | RIM instruction can be used for serial input of data. |
What is the use of SIM instruction in 8085?
In 8085 Instruction set, SIM (Set Interrupt Mask) instructions can perform mask and unmask RST 7.5, RST 6.5, and RST 5.5 interrupt pins and can also read their status. When SIM instruction is executed then the content of the Accumulator decides the action to be taken.
What is the function of RIM?
The rim is a cylindrical wheel outer edge holding the tire on the wheel. Main function of the rim is supporting and sealing the tire to the wheel. The rim ensures proper fitting between tire and rim and retaining the air inside the tubeless tire.
What are the classifications of instructions for 8085 microprocessor?
The 8085 instruction set is classified into 3 categories by considering the length of the instructions. In 8085, the length is measured in terms of “byte” rather then “word” because 8085 microprocessor has 8-bit data bus. Three types of instruction are: 1-byte instruction, 2-byte instruction, and 3-byte instruction.
What is the size of RIM and SIM instruction?
Masking of interrupts: Only the LS 4 bits of the accumulator are used for masking or unmasking of interrupts. In 8085 Instruction set, RIM stands for “Read Interrupt Mask”. It is a 1-Byte multi-purpose instruction. It is used for the following purposes.
Which of the following is correct function of Sim instruction?
If MSE bit = 1, the SIM instruction is used for masking or unmasking of interrupts. Then the LS 3 bits provide information about masking or unmasking of interrupts.
Which rims are used in heavier vehicles?
Wheels are constructed in a wide variety of designs using different materials, but in the early 21st century, aluminum and steel are most often used, with steel-made wheels being heavier and more durable than aluminum wheels.
What holds the tire to the rim?
A wheel has an inner and outer rim to hold the tire. The centre hole in the wheel fits over the axle hub, and it’s the part that supports the vehicle’s weight. The smaller holes around it go over the wheel studs.
What are the classification of instructions?
These instructions can be classified into the following five functional categories: data transfer (copy) operations, arithmetic operations, logical operations, branching operations, and machine-control operations. An instruction is a binary pattern designed inside a microprocessor to perform a specific function.
How many types of instructions are there in 8085?
Number of instructions in 8085 Microprocessor
| Description | No. of opcodes | No. of instruction types |
|---|---|---|
| Branch Instructions | 36 | 8 |
| I/O Instructions | 2 | 2 |
| Interrupt Instructions | 5 | 5 |
| Total | 246 | 66 |
Which interrupt is suitable if I have to use SIM instruction?
5flip-flop receives logic 1 to its clear input and thus gets cleared when bit 4 of Accumulator = 1 and SIM instruction is executed. Alternatively, RST7. 5 flip-flop gets cleared when RST7. 5 interrupt is recognized by the 8085 or whenever the 8085 is reset.
What’s the difference between Sim and RIM instructions in 8085?
Difference between SIM and RIM instructions in 8085 microprocessor: SIM stands for Set Interrupt Mask. RIM stands for Read Interrupt Mask. 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.
When to use SIM and rim in microprocessor?
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. SIM instruction can be used for serial output of data. RIM instruction can be used for serial input of data.
What does rim instruction in 8085 do to accumulator?
So most significant bit of the Accumulator receives the data present on the SID pin of 8085 when the RIM instruction is executed. In view of this, the meaning of bit 7 of the Accumulator will be as follows, after we execute the RIM instruction. This is SID bit.
When to use rim instruction and Sim instruction?
To check whether RST7.5, RST6.5, or RST5.5 interrupts are pending or not; To perform serial input of data. To get the status information about the interrupt system, RIM instruction provides status information about interrupt system and this instruction can be used for serial input of data.