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/bootloader disassembly

Created January 23, 2016 23:45
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bootloader disassembly
00007C00 EA057C0000 jmp word 0x0:0x7c05
00007C05 31C0 xor ax,ax
00007C07 8ED8 mov ds,ax
00007C09 8EC0 mov es,ax
00007C0B FA cli
00007C0C 8ED0 mov ss,ax
00007C0E BC007C mov sp,0x7c00
00007C11 E82E00 call word 0x7c42
00007C14 8816837C mov [0x7c83],dl
00007C18 EBFE jmp short 0x7c18
00007C1A BE847C mov si,0x7c84
00007C1D E80E00 call word 0x7c2e
00007C20 BE847C mov si,0x7c84
00007C23 E80800 call word 0x7c2e
00007C26 BE847C mov si,0x7c84
00007C29 E80200 call word 0x7c2e
00007C2C EBFE jmp short 0x7c2c
00007C2E 60 pushaw
00007C2F B40E mov ah,0xe
00007C31 AC lodsb
00007C32 3C00 cmp al,0x0
00007C34 740A jz 0x7c40
00007C36 E80900 call word 0x7c42
00007C39 CD10 int 0x10
00007C3B E80400 call word 0x7c42
00007C3E EBF1 jmp short 0x7c31
00007C40 61 popaw
00007C41 C3 ret
00007C42 06 push es
00007C43 60 pushaw
00007C44 6800B8 push word 0xb800
00007C47 07 pop es
00007C48 8B3E817C mov di,[0x7c81]
00007C4C 89E5 mov bp,sp
00007C4E B90800 mov cx,0x8
00007C51 4D dec bp
00007C52 4D dec bp
00007C53 8B4610 mov ax,[bp+0x10]
00007C56 E80B00 call word 0x7c64
00007C59 47 inc di
00007C5A 47 inc di
00007C5B E2F4 loop 0x7c51
00007C5D 893E817C mov [0x7c81],di
00007C61 61 popaw
00007C62 07 pop es
00007C63 C3 ret
00007C64 50 push ax
00007C65 88E0 mov al,ah
00007C67 E80100 call word 0x7c6b
00007C6A 58 pop ax
00007C6B D410 aam 0x10
00007C6D 86C4 xchg al,ah
00007C6F E80200 call word 0x7c74
00007C72 88E0 mov al,ah
00007C74 3C0A cmp al,0xa
00007C76 7202 jc 0x7c7a
00007C78 0407 add al,0x7
00007C7A 0430 add al,0x30
00007C7C AA stosb
00007C7D B007 mov al,0x7
00007C7F AA stosb
00007C80 C3 ret
00007C81 60 pushaw
00007C82 0900 or [bx+si],ax
00007C84 54 push sp
00007C85 45 inc bp
00007C86 53 push bx
00007C87 54 push sp
00007C88 0D0A00 or ax,0xa
00007C8B 0000 add [bx+si],al
00007C8D 0000 add [bx+si],al
00007C8F 0000 add [bx+si],al
00007C91 0000 add [bx+si],al
00007C93 0000 add [bx+si],al
00007C95 0000 add [bx+si],al
00007C97 0000 add [bx+si],al
00007C99 0000 add [bx+si],al
00007C9B 0000 add [bx+si],al
00007C9D 0000 add [bx+si],al
00007C9F 0000 add [bx+si],al
00007CA1 0000 add [bx+si],al
00007CA3 0000 add [bx+si],al
00007CA5 0000 add [bx+si],al
00007CA7 0000 add [bx+si],al
00007CA9 0000 add [bx+si],al
00007CAB 0000 add [bx+si],al
00007CAD 0000 add [bx+si],al
00007CAF 0000 add [bx+si],al
00007CB1 0000 add [bx+si],al
00007CB3 0000 add [bx+si],al
00007CB5 0000 add [bx+si],al
00007CB7 0000 add [bx+si],al
00007CB9 0000 add [bx+si],al
00007CBB 0000 add [bx+si],al
00007CBD 0000 add [bx+si],al
00007CBF 0000 add [bx+si],al
00007CC1 0000 add [bx+si],al
00007CC3 0000 add [bx+si],al
00007CC5 0000 add [bx+si],al
00007CC7 0000 add [bx+si],al
00007CC9 0000 add [bx+si],al
00007CCB 0000 add [bx+si],al
00007CCD 0000 add [bx+si],al
00007CCF 0000 add [bx+si],al
00007CD1 0000 add [bx+si],al
00007CD3 0000 add [bx+si],al
00007CD5 0000 add [bx+si],al
00007CD7 0000 add [bx+si],al
00007CD9 0000 add [bx+si],al
00007CDB 0000 add [bx+si],al
00007CDD 0000 add [bx+si],al
00007CDF 0000 add [bx+si],al
00007CE1 0000 add [bx+si],al
00007CE3 0000 add [bx+si],al
00007CE5 0000 add [bx+si],al
00007CE7 0000 add [bx+si],al
00007CE9 0000 add [bx+si],al
00007CEB 0000 add [bx+si],al
00007CED 0000 add [bx+si],al
00007CEF 0000 add [bx+si],al
00007CF1 0000 add [bx+si],al
00007CF3 0000 add [bx+si],al
00007CF5 0000 add [bx+si],al
00007CF7 0000 add [bx+si],al
00007CF9 0000 add [bx+si],al
00007CFB 0000 add [bx+si],al
00007CFD 0000 add [bx+si],al
00007CFF 0000 add [bx+si],al
00007D01 0000 add [bx+si],al
00007D03 0000 add [bx+si],al
00007D05 0000 add [bx+si],al
00007D07 0000 add [bx+si],al
00007D09 0000 add [bx+si],al
00007D0B 0000 add [bx+si],al
00007D0D 0000 add [bx+si],al
00007D0F 0000 add [bx+si],al
00007D11 0000 add [bx+si],al
00007D13 0000 add [bx+si],al
00007D15 0000 add [bx+si],al
00007D17 0000 add [bx+si],al
00007D19 0000 add [bx+si],al
00007D1B 0000 add [bx+si],al
00007D1D 0000 add [bx+si],al
00007D1F 0000 add [bx+si],al
00007D21 0000 add [bx+si],al
00007D23 0000 add [bx+si],al
00007D25 0000 add [bx+si],al
00007D27 0000 add [bx+si],al
00007D29 0000 add [bx+si],al
00007D2B 0000 add [bx+si],al
00007D2D 0000 add [bx+si],al
00007D2F 0000 add [bx+si],al
00007D31 0000 add [bx+si],al
00007D33 0000 add [bx+si],al
00007D35 0000 add [bx+si],al
00007D37 0000 add [bx+si],al
00007D39 0000 add [bx+si],al
00007D3B 0000 add [bx+si],al
00007D3D 0000 add [bx+si],al
00007D3F 0000 add [bx+si],al
00007D41 0000 add [bx+si],al
00007D43 0000 add [bx+si],al
00007D45 0000 add [bx+si],al
00007D47 0000 add [bx+si],al
00007D49 0000 add [bx+si],al
00007D4B 0000 add [bx+si],al
00007D4D 0000 add [bx+si],al
00007D4F 0000 add [bx+si],al
00007D51 0000 add [bx+si],al
00007D53 0000 add [bx+si],al
00007D55 0000 add [bx+si],al
00007D57 0000 add [bx+si],al
00007D59 0000 add [bx+si],al
00007D5B 0000 add [bx+si],al
00007D5D 0000 add [bx+si],al
00007D5F 0000 add [bx+si],al
00007D61 0000 add [bx+si],al
00007D63 0000 add [bx+si],al
00007D65 0000 add [bx+si],al
00007D67 0000 add [bx+si],al
00007D69 0000 add [bx+si],al
00007D6B 0000 add [bx+si],al
00007D6D 0000 add [bx+si],al
00007D6F 0000 add [bx+si],al
00007D71 0000 add [bx+si],al
00007D73 0000 add [bx+si],al
00007D75 0000 add [bx+si],al
00007D77 0000 add [bx+si],al
00007D79 0000 add [bx+si],al
00007D7B 0000 add [bx+si],al
00007D7D 0000 add [bx+si],al
00007D7F 0000 add [bx+si],al
00007D81 0000 add [bx+si],al
00007D83 0000 add [bx+si],al
00007D85 0000 add [bx+si],al
00007D87 0000 add [bx+si],al
00007D89 0000 add [bx+si],al
00007D8B 0000 add [bx+si],al
00007D8D 0000 add [bx+si],al
00007D8F 0000 add [bx+si],al
00007D91 0000 add [bx+si],al
00007D93 0000 add [bx+si],al
00007D95 0000 add [bx+si],al
00007D97 0000 add [bx+si],al
00007D99 0000 add [bx+si],al
00007D9B 0000 add [bx+si],al
00007D9D 0000 add [bx+si],al
00007D9F 0000 add [bx+si],al
00007DA1 0000 add [bx+si],al
00007DA3 0000 add [bx+si],al
00007DA5 0000 add [bx+si],al
00007DA7 0000 add [bx+si],al
00007DA9 0000 add [bx+si],al
00007DAB 0000 add [bx+si],al
00007DAD 0000 add [bx+si],al
00007DAF 0000 add [bx+si],al
00007DB1 0000 add [bx+si],al
00007DB3 0000 add [bx+si],al
00007DB5 0000 add [bx+si],al
00007DB7 0000 add [bx+si],al
00007DB9 0000 add [bx+si],al
00007DBB 0000 add [bx+si],al
00007DBD 0000 add [bx+si],al
00007DBF 0000 add [bx+si],al
00007DC1 0000 add [bx+si],al
00007DC3 0000 add [bx+si],al
00007DC5 0000 add [bx+si],al
00007DC7 0000 add [bx+si],al
00007DC9 0000 add [bx+si],al
00007DCB 0000 add [bx+si],al
00007DCD 0000 add [bx+si],al
00007DCF 0000 add [bx+si],al
00007DD1 0000 add [bx+si],al
00007DD3 0000 add [bx+si],al
00007DD5 0000 add [bx+si],al
00007DD7 0000 add [bx+si],al
00007DD9 0000 add [bx+si],al
00007DDB 0000 add [bx+si],al
00007DDD 0000 add [bx+si],al
00007DDF 0000 add [bx+si],al
00007DE1 0000 add [bx+si],al
00007DE3 0000 add [bx+si],al
00007DE5 0000 add [bx+si],al
00007DE7 0000 add [bx+si],al
00007DE9 0000 add [bx+si],al
00007DEB 0000 add [bx+si],al
00007DED 0000 add [bx+si],al
00007DEF 0000 add [bx+si],al
00007DF1 0000 add [bx+si],al
00007DF3 0000 add [bx+si],al
00007DF5 0000 add [bx+si],al
00007DF7 0000 add [bx+si],al
00007DF9 0000 add [bx+si],al
00007DFB 0000 add [bx+si],al
00007DFD 0055AA add [di-0x56],dl
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