/Assembly/What do you mean by io address and memory address

What do you mean by io address and memory address

Memory mapped I/O is a technique of performing I/O operations between the CPU and the I/O device. We can perform I/O simply by accessing bytes of memory and relying on the OS kernel to ensure that the changes to the memory are propagated to the mapped I/O device.

This technique can provide performance benefits like :

A normal read() or write() call involves two transfers. One between the I/O device and the kernel buffer cache, and the other between the buffer cache and a user-space buffer. Memory mapping eliminates the second of these transfers.
Memory mapping can also improve performance by lowering memory requirements. It uses one less buffer to store the data i.e. a single buffer is shared between the kernel space and user space.

What do you mean by io address and memory address

Memory mapped IO is one where the processor and the IO device share the same memory location(memory),i.e.,the processor and IO devices are mapped using the memory address

Similar codes

0 vote134 views2 answers
Chrome version command line
Assembly
0 vote127 views1 answer
Tqdm label
Assembly
1 vote158 views1 answer
Google sheets conditional formatting custom formula current cell
Assembly
0 vote125 views1 answer
Install retroarch on Linux
Assembly
2 votes170 views1 answer
Does telegrsam have its official desktop app
Assembly
0 vote116 views1 answer
Cron job when not enough time
Assembly
1 vote157 views1 answer
Sqlalchemy filter date today
Assembly
0 vote157 views1 answer
Discord.py change status to invisible
Assembly
0 vote119 views1 answer
Android studio manually add copyright
Assembly
0 vote136 views1 answer
Visual studio change assembly name
Assembly