17,8 → 17,8 |
xor ebx, ebx |
mov es, bx |
mov ds, bx |
mov di, BOOT_MEMMAP_BLOCKS |
mov [BOOT_MEMMAP_BLOCK_CNT], ebx ; no blocks yet |
mov di, BOOT_LO.memmap_blocks |
mov [BOOT_LO.memmap_block_cnt], ebx ; no blocks yet |
mov ecx, 20 |
mov edx, 'PAMS' ; 'SMAP' |
int 15h |
28,13 → 28,13 |
e820_mem_loop: |
; cmp byte [di+16], 1 ; ignore non-free areas |
; jnz e820_mem_next |
inc byte [BOOT_MEMMAP_BLOCK_CNT] |
inc byte [BOOT_LO.memmap_block_cnt] |
add di, sizeof.e820entry |
e820_mem_next: |
; consequent calls to fn E820 |
test ebx, ebx |
jz e820_test_done |
cmp byte [BOOT_MEMMAP_BLOCK_CNT], MAX_MEMMAP_BLOCKS |
cmp byte [BOOT_LO.memmap_block_cnt], MAX_MEMMAP_BLOCKS |
jz e820_test_done |
mov eax, 0xE820 |
int 15h |