Dm9000 (a) is a fully integrated, powerful, cost-effective, fast Ethernet MAC controller with a universal processor interface, EEPROM interface, 10/100 phy, and 16 kb SRAM (13 KB as receiving FIFO, 3 kb as the sending FIFO ). It uses a single power
The register keyword in C language and the register keyword
The variable modified by register in C language indicates that the variable is stored in the CPU register. Because the CPU access register is much faster than the access memory, the
Cuda register array resolution, cuda register
About cuda register array
When performing Parallel Optimization on some algorithms based on cuda, in order to improve the running speed of the algorithm as much as possible, sometimes we want to use
This article is written simply because the learning protection model requires this knowledge. Readers can take a look at the content and find out when necessary, there is no need to resist the difficulty. I have to read this article carefully and
I. Generation of segment registers
The generation of segment registers is due to the inconsistent width between the data bus and the address bus in the Intel 8086 CPU architecture.
The width of the data bus, that is, the width of the ALU
The attributes of variables and functions include the data type and data storage class. The storage class index data is stored in memory (static and dynamic), including auto, static, register, and extern.
Memory. Specifically, memory is divided
Recently started Orangepi Zero piece, the program needs to use the board's own LED lights, on-line a check, have to say that OPI support and Raspberry Pi can not compare. Oneself groped for a moment, realizes the simple Gpio control method, the
How to use the 74ls595 (8-bit output latch shift register)
The use of single-chip microcomputer and 74ls595 (8-bit output latch shift register)
74595 Data End:
QA--QH: Eight-bit parallel output, can directly
int i;for (i=0; iIn order to solve this problem, it is possible to put frequently used variables in the general register of the CPU, so that the use of the variable without access to memory, directly from the register to read, greatly improve the
1. Four areas of memory
2. In the program, the variable declaration can have multiple copies, and the definition can only have one copy.
3. The register is in the CPU and there is no address.
4. C language Embedded Assembly Language
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
and provide relevant evidence. A staff member will contact you within 5 working days.