chore: git sync
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@ -1,3 +1,4 @@
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;; File: bootinfo.inc
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struc BootInfoRange {
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.base dd ?
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@ -5,7 +6,9 @@ struc BootInfoRange {
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}
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struc BootInfo {
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.mmap dd 4*2*40 dup(0)
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.mmap dd 4*2*40 dup(0)
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.kernel_start dd ?
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.kernel_size dd ?
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}
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BOOTINFO_MEMORY_LIMIT = 0xFFFFF000
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@ -46,6 +49,9 @@ boot_info_add_memmap:
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pop ebx
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ret
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boot_sanitize_memory_map:
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ret
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;; Function: boot_info_print_mmap
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boot_info_print_mmap:
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xor ecx, ecx
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@ -65,4 +71,4 @@ boot_info_print_mmap:
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jbe .loop
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ret
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szMsgMemMap db 'Address: %x - Length: %x'
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szMsgMemMap db 'Address: %x - Length: %x', 0
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@ -1,4 +0,0 @@
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struct BootProtocol
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{
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}
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@ -99,12 +99,10 @@ _start:
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call memory_get_map
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jc .error_memory
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xchg bx, bx
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call boot_info_print_mmap
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; video information
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call video_setup
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;call video_setup
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; load GDT and enter Protected-Mode
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lgdt [gdt_ptr]
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@ -213,4 +211,7 @@ boot_page_directory:
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boot_768_page_table:
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rb 4096
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boot_0_page_table:
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rb 4096
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_end:
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@ -51,7 +51,6 @@ memory_e820_get_map:
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xor ebx, ebx
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@@:
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clc
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xchg bx, bx
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xor eax, eax
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mov es, ax
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mov di, pE280AddrRange
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@ -59,7 +58,6 @@ memory_e820_get_map:
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mov eax, 0xE820
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mov edx, 0x534D4150
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int 0x15
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xchg bx, bx
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jc .error
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cmp eax, 0x534D4150
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jne .error
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