# ! $Source$ ! $State$ ! $Revision$ ! Declare segments (the order is important). .sect .text .sect .rom .sect .data .sect .bss .sect .text ! Open an existing file. .define __sys_rawopen __sys_rawopen: movb ah, 0x3d mov bx, sp mov dx, 2(bx) movb al, 4(bx) int 0x21 jmp .sys_axret