2017-01-28 22:46:50 +01:00
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== Instruction ==
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Build with
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nasm -f bin mbr.asm -o mbr
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Run with
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qemu-system-x86_64 -boot a -fda mbr
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== Bios Memory ==
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0x0 - 0x03FF ;IVT
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0x400 - 0x4FF ;BIOS Data
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0x500 - 0x7BFF ;Unused
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0x7C00 - 0x7D77 ;Bootloader
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0x7E00 - 0x9FFFF ;Unused
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0xA0000 - 0xBFFFF ;Video memory
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0xB0000 - 0xB7777 ;Video memory monochrome
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0xB8000 - 0xBFFFF ;Video memory color
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0xC0000 - 0xC7FFF ;BIOS ROM
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0x80000 - 0xEFFFF ;BIOS shadow memory
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0xF0000 - 0xFFFFF ;BIOS System
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== Interrupt Vector Table ==
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INT_NUM | Short Description PM
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----------- | ----------------------
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0x00 | Division by zero
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0x01 | Debugger
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0x02 | NMI
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0x03 | Breakpoint
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0x04 | Overflow
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0x05 | Bounds
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0x06 | Invalid Opcode
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0x07 | Coprocessor not available
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0x08 | Double fault
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0x09 | Coprocessor Segment Overrun (386 or earlier only)
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0x0A | Invalid Task State Segment
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0x0B | Segment not present
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0x0C | Stack Fault
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0x0D | General protection fault
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0x0E | Page fault
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0x0F | reserved
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0x10 | Math Fault
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0x11 | Alignment Check
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0x12 | Machine Check
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0x13 | SIMD Floating-Point Exception
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0x14 | Virtualization Exception
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0x15 | Control Protection Exception
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2017-01-28 22:58:59 +01:00
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== BIOS IRQ ==
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https://en.wikipedia.org/wiki/BIOS_interrupt_call
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