xyou
f1a2a110d7
Add the current OS source tree, build scripts, system image layout, and development notes covering DMA page allocation, e1000 bring-up, net API dispatch, and DHCP work in progress.
16 lines
285 B
C
16 lines
285 B
C
#include <utsm/types.h>
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void outb(u16 port, u8 value) {
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__asm__ volatile ("outb %0, %1" : : "a"(value), "Nd"(port));
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}
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u8 inb(u16 port) {
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u8 value;
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__asm__ volatile ("inb %1, %0" : "=a"(value) : "Nd"(port));
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return value;
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}
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void io_wait(void) {
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outb(0x80, 0);
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}
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