bootloader - How to insert x86 opcode data from .data segment bits in to operand instruction in x86 machine code? -

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i working on x86 bootloader written entirely in opcodes, no headers, binary.

the problem intel's isa manual not include how include data segment bytes .data segment code in secondary operands of machine instructions in opcode format.

i have far:

1000 101w 110

that above code should equivalent following:

mov si

however, need insert data source index register containing "hello world" displayed on screen in monochrome text video mode, this:

mov si, hello_world_byte_string

any help?

the bootloader loaded @ fixed address (0000:7c00) bios, if put string in point in code, can reference offset start of program.

you can see link http://www.vnutz.com/articles/pc_bootsector_programming_tutorial_in_asm


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