36 lines
698 B
C
36 lines
698 B
C
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#include <stddef.h>
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size_t strlen(const char* string) {
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size_t size = 0;
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while (string[size])
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size++;
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return size;
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}
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unsigned char inb(unsigned short port) {
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unsigned char ptr;
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asm volatile("inb %1, %0" : "=a" (ptr) : "dN" (port));
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return ptr;
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}
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void outb(unsigned short port, unsigned char data) {
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asm volatile("outb %1, %0" : : "dN" (port), "a" (data));
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}
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void memcpy(void* dest, void* src, size_t n) {
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char* src_c = (char*)src;
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char* dest_c = (char*)dest;
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for(size_t i = 0; i < n; i++) {
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dest_c[i] = src_c[i];
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}
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}
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void memset(void* src, int chr, size_t n) {
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unsigned char* ptr = src;
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while(n--) {
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*ptr++ = (unsigned char) chr;
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}
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}
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