refactor: hungarian notation (wip)
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d8f68619d6
commit
eb24cb88c2
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@ -1,6 +1,9 @@
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CR = 0x0D
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LF = 0x0A
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TRUE = 1
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FALSE = 0
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; -------- Address ----------
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MBR_BASE = 0x0600
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BOOTSECT_BASE = 0x7C00
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@ -31,8 +31,20 @@ efimain:
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mov ebx, [eax + EFI_SYSTEM_TABLE.BootServices]
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mov [pBootServices], ebx
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;mov ecx, [ebx + EFI_BOOT_SERVICES.OpenProtocol]
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;mov [fnOpenProtocol], ecx
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mov ecx, [ebx + EFI_BOOT_SERVICES.AllocatePool]
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mov [fnAllocatePool], ecx
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mov ecx, [ebx + EFI_BOOT_SERVICES.FreePool]
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mov [fnFreePool], ecx
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mov ecx, [ebx + EFI_BOOT_SERVICES.GetMemoryMap]
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mov [fnGetMemoryMap], ecx
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mov ecx, [ebx + EFI_BOOT_SERVICES.OpenProtocol]
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mov [fnOpenProtocol], ecx
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mov ecx, [ebx + EFI_BOOT_SERVICES.Exit]
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mov [fnExit], ecx
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mov ebx, [eax + EFI_SYSTEM_TABLE.ConOut]
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mov [pConOut], ebx
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@ -53,7 +65,6 @@ efimain:
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call [fnOutputStr]
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add esp, 8
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; load config
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; #=======================#
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; search and load kernel
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@ -93,11 +104,12 @@ pSystemTable dd ?
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;; Variable: pBootServices
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pBootServices dd ?
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fnAllocatePages dd ?
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fnFreePages dd ?
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fnAllocatePool dd ?
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fnFreePool dd ?
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fnGetMemoryMap dd ?
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fnOpenProtocol dd ?
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fnCloseProtocol dd ?
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fnExit dd ?
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;; Variable: pRuntimeServices
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pRuntimeServices dd ?
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@ -210,6 +210,7 @@ struc EFI_BOOT_SERVICES
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.SetMem UINTPTR
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.CreateEventEx UINTPTR
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}
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defn EFI_BOOT_SERVICES
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;; ========================================================================
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;; EFI_RUNTIMES_SERVICES
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@ -1,6 +1,6 @@
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disk_read_sectors:
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test byte [drive_lba], 1
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test byte [bDriveLBA], TRUE
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je .lba_read
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push ax
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push bx
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@ -18,7 +18,7 @@ disk_read_sectors:
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mov ch, byte [C]
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mov cl, byte [S]
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mov dh, byte [H]
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mov dl, [drive_number]
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mov dl, [uDrive]
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int 0x13
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jc @f
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pop cx
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@ -29,7 +29,7 @@ disk_read_sectors:
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loop disk_read_sectors
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ret
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@@:
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mov si, msg_error_sector
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mov si, szMsgErrorSector
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call bios_print
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ret
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.lba_read:
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@ -38,12 +38,11 @@ disk_read_sectors:
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mov word [disk_packet.offset], bx
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mov word [disk_packet.lba], ax
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mov ds, [disk_packet]
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mov dl, [drive_number]
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mov dl, [uDrive]
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mov ah, 0x42
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int 0x13
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ret
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C dw 0x00
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H dw 0x00
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S dw 0x00
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@ -27,9 +27,9 @@ _start:
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push cs
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pop ds
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mov [drive_number], dl
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mov [uDrive], dl
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mov si, msg_stage2
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mov si, szMsgStage2
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call bios_log
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; enable A20 line
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@ -43,7 +43,7 @@ _start:
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; dl >= 0x80 == hard drive
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; dl == 0xE0 ~= CD/DVD
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; dl <= 0xFF == hard drive
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mov dl, [drive_number]
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mov dl, [uDrive]
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cmp dl, 0x7F
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; skip disk extension check
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jle @f
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@ -53,19 +53,19 @@ _start:
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mov bx, 0x55AA
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int 0x13
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jc @f
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mov [drive_lba], 1
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mov [bDriveLBA], TRUE
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@@:
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; detect filesystem (FAT12/16 or StpdFS)
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; load kernel from filesystem
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; +---------+--------+---------+
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; | bootsec | sect 1 | stpd sb |
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; | bootsec | sect 1 | stpd sb |
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; +---------+--------+---------+
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; 0 512 1024
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;
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; for now fat12 is asumed
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call fat_load_root
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mov si, kernel_fat12_file
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mov si, szKernelFile
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call fat_search_root
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jc .error_not_found
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@ -95,13 +95,13 @@ _start:
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jmp 0x8:common32
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.error_not_found:
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mov si, msg_error_not_found
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mov si, szMsgErrorNotFound
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jmp .error
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.error_memory:
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mov si, msg_error_memory
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mov si, szMsgErrorMemory
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jmp .error
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.error_a20:
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mov si, msg_error_a20
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mov si, szMsgErrorA20
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.error:
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call bios_log
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@ -118,15 +118,15 @@ _start:
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include 'video.inc'
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include 'gdt.inc'
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drive_number rb 1
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drive_lba db 0
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uDrive rb 1
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bDriveLBA db FALSE
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msg_stage2 db "StupidOS Loader", 0
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kernel_fat12_file db "VMSTUPIDSYS", 0
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msg_error_a20 db "ERROR: can't enable a20 line", 0
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msg_error_memory db "ERROR: can't detect available memory", 0
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msg_error_sector db "ERROR: reading sector", CR, LF, 0
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msg_error_not_found db "ERROR: kernel not found", 0
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szMsgStage2 db "StupidOS Loader", 0
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szKernelFile db "VMSTUPIDSYS", 0
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szMsgErrorA20 db "ERROR: can't enable a20 line", 0
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szMsgErrorMemory db "ERROR: can't detect available memory", 0
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szMsgErrorSector db "ERROR: reading sector", CR, LF, 0
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szMsgErrorNotFound db "ERROR: kernel not found", 0
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use32
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; =========================================================================
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@ -143,11 +143,12 @@ multiboot:
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common32:
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mov [0xB8000], dword 0x07690748
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; paging
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; identity map first 1MB
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; map kernel to 0xC0000000
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; map kernel to 0xC000000
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; -----------------------
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push STPDBOOT_MAGIC
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