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- c - Low level I O access using outb and inb - Stack Overflow
outb() writes the byte specified by its second argument to the I O port specified by its first argument In this context, a "port" is a means for the CPU to communication with another chip In this context, a "port" is a means for the CPU to communication with another chip
- 高分求救：inb和outb的用法（阅读dm9000网卡驱动程序时 . . .
2 inb和outb的用法。 3 IOR函数为什么先调用outb再调用inb？IOW函数为什么调用两次outb？ 一个调用iow函数的例子： iow(db, 0, 3); 我知道这句的意思是把值3写入相对于网卡基地址的偏移地址为0的寄存器（即NCR寄存器），但
- what does outb in AT T asm mean? - Stack Overflow
I am reading some code of Linux The keyboard S has something like outb %al,$0x61 and inb $0x61,%al I think the pending 'b' means 'byte', but i still cannot find what these instructions mean
- c - Converting help: __asm__ __volatile__ - Stack Overflow
The outb instruction should only be called as outb %al, %dx where %al is the value and %dx is the port D uses Intel syntax for x86, as opposed to GNU assembler which uses the AT T syntax by default The corresponding Intel syntax would be out dx, al , and corresponding code in D would look like:
- Porting AT T inline-asm inb outb wrappers to work with gcc . . .
(x86 has cache-coherent DMA so you wouldn't have had to explicitly flush it, but you can't let the compiler reorder it after an outb, or even optimize away an apparently dead store ) There's no support in GAS for saving the old mode, so using intel_syntax noprefix inside your inline asm leaves you no way know whether to switch back to att_syntax or not
- inb、outb ？ - 内核源码-Chinaunix
inb, outb基本上是X86专用的了吧， 实战分享：从技术角度谈机器学习入门 | 【大话IT】RadonDB低门槛向MySQL集群下战书 | ChinaUnix打赏功能已上线！ | 新一代分布式关系型数据库RadonDB知多少？
- Driver accessing ports with inb () and outb () - Stack Overflow
They are ubicated (in debian 6) in a port represented with an integer, in the positions o, 1 and 2 Additionally but I don't know if it's related, outb produce this exit on system log atkbd c: Spurious ACK on isa0060 serio0 Some
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