52 lines
1.0 KiB
C
52 lines
1.0 KiB
C
#include <stdint.h>
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void* alloc_memory(uint32_t num_pages) {
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void* address;
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asm volatile(" \
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mov $3, %%eax; \
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int $80; \
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":"=b"(address):"b"(num_pages));
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return address;
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}
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void alloc_memory_virt(uint32_t num_pages,void* addr) {
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asm volatile(" \
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mov $4, %%eax; \
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int $80; \
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"::"b"(num_pages),"c"(addr));
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}
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void* new_address_space() {
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void* cr3;
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asm volatile(" \
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mov $8, %%eax; \
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int $80; \
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":"=b"(cr3));
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return cr3;
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}
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void copy_data(void* cr3, void* data,uint32_t size,void* virt_addr) {
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asm volatile(" \
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mov $10, %%eax; \
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int $80; \
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"::"b"(cr3),"c"(data),"d"(size),"S"(virt_addr));
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}
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void* put_data(void* cr3, void* data,uint32_t size) {
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void* virt_addr;
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asm volatile(" \
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mov $13, %%eax; \
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int $80; \
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":"=b"(virt_addr):"b"(cr3),"c"(data),"d"(size));
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return virt_addr;
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}
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void* map_phys(void* phys_addr,uint32_t num_pages) {
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void* virt_addr;
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asm volatile(" \
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mov $11, %%eax; \
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int $80; \
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":"=b"(virt_addr):"b"(phys_addr),"c"(num_pages));
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return virt_addr;
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}
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