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No commits in common. "cc9aca2595aa030859da56d2def1acb0dc4618c0" and "232b19666a80a27f16e383f6f49e65d86863a7dd" have entirely different histories.
cc9aca2595
...
232b19666a
@ -8,4 +8,3 @@ int strncmp(const char *s1, const char *s2, size_t n);
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size_t strlen(const char *str);
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char *strstr(const char *haystack, const char *needle);
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void *memcpy(void *dest, const void *src, size_t n);
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int memcmp(const void *s1, const void *s2, size_t n);
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@ -13,15 +13,3 @@ static inline uint8_t inb(uint16_t port)
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__asm__ volatile("inb %w1, %b0" : "=a"(ret) : "Nd"(port) : "memory");
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return ret;
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}
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static inline void outw(uint16_t port, uint16_t val)
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{
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__asm__ volatile("outb %b0, %w1" : : "a"(val), "Nd"(port) : "memory");
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}
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static inline uint16_t inw(uint16_t port)
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{
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uint8_t ret;
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__asm__ volatile("inb %w1, %b0" : "=a"(ret) : "Nd"(port) : "memory");
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return ret;
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}
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@ -1,13 +0,0 @@
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#include <stddef.h>
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int memcmp(const void *s1, const void *s2, size_t n)
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{
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const char *str1 = s1;
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const char *str2 = s2;
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size_t i;
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if (n == 0)
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return 0;
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for (i = 0; str1[i] == str2[i] && i < n - 1; i++);
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return str1[i] - str2[i];
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}
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@ -50,11 +50,9 @@ void initGdt()
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.base = 0, .limit = 0xFFFFF, .access_byte = 0x92, .flags = 0xC};
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encodeGdtEntry(gdt_entries[2], gdt_entry_kernel_mode_data_segment);
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struct gdt_entry gdt_entry_kernel_mode_stack_segment = { .base = 0x0,
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.limit = 0x0,
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.access_byte = 0x97,
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.flags = 0x0D };
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encodeGdtEntry(gdt_entries[3], gdt_entry_kernel_mode_stack_segment);
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struct gdt_entry gdt_entry_kernel_mode_stack_segment = {
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.base = 0x0, .limit = 0x0, .access_byte = 0x97, .flags = 0x0D};
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encodeGdtEntry(gdt_entries[3], gdt_entry_kernel_mode_data_segment);
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struct gdt_entry gdt_entry_user_mode_code_segment = {
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.base = 0, .limit = 0xFFFFF, .access_byte = 0xFA, .flags = 0xC};
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@ -64,11 +62,9 @@ void initGdt()
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.base = 0, .limit = 0xFFFFF, .access_byte = 0xF2, .flags = 0xC};
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encodeGdtEntry(gdt_entries[5], gdt_entry_user_mode_data_segment);
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struct gdt_entry gdt_entry_user_mode_stack_segment = { .base = 0x0,
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.limit = 0x0,
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.access_byte = 0xF7,
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.flags = 0x0D };
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encodeGdtEntry(gdt_entries[6], gdt_entry_user_mode_stack_segment);
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struct gdt_entry gdt_entry_user_mode_stack_segment = {
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.base = 0x0, .limit = 0x0, .access_byte = 0xF7, .flags = 0x0D};
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encodeGdtEntry(gdt_entries[6], gdt_entry_user_mode_data_segment);
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memcpy((void *)gdtr.base, (void *)gdt_entries, (size_t)GDT_SIZE);
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