2024-03-20 09:48:47 +00:00
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MULTIBOOT_HDR_MAGIC = 0x1BADB002
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MULTIBOOT_MAGIC = 0x2BADB002
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MULTIBOOT_HDR_ALIGN = 0x1
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MULTIBOOT_HDR_MEMINFO = 0x2
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MULTIBOOT_HDR_VIDEO = 0x4
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MULTIBOOT_HDR_AOUT_KLUDGE = 0x10000
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MULTIBOOT_FLAGS = MULTIBOOT_HDR_ALIGN or MULTIBOOT_HDR_MEMINFO or MULTIBOOT_HDR_VIDEO or MULTIBOOT_HDR_AOUT_KLUDGE
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struc MultibootHeader addr
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{
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.magic dd MULTIBOOT_HDR_MAGIC
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.flags dd MULTIBOOT_FLAGS
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.checksum dd -(MULTIBOOT_HDR_MAGIC + MULTIBOOT_FLAGS)
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; address fields (we'll just skip them)
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.header_addr dd addr
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.load_addr dd STAGE1_BASE
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.load_end_addr dd _edata
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.bss_end_addr dd _end
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.entry_addr dd _start
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; Video mode
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.mode_type dd 0x0
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.width dd VIDEO_WIDTH
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.height dd VIDEO_HEIGHT
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.depth dd VIDEO_DEPTH
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}
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struc MultibootData
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{
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.flags dd ?
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; if flags[0] is set
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.mem_lower dd ?
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.mem_upper dd ?
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; if flags[1] is set
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.boot_device dd ?
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; if flags[2] is set
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.cmdline dd ?
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; if flags[3] is set
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.mods_count dd ?
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.mods_addr dd ?
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; if flags[4] is set
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.syms dd 4 dup ?
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; if flags[6] is set
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.mmap_length dd ?
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.mmap_addr dd ?
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; if flags[7] is set
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.drives_length dd ?
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.drives_addr dd ?
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; if flags[8] is set
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.config_table dd ?
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; if flags[9] is set
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.bootloader_name dd ?
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; if flags[10] is set
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.apm_table dd ?
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; if flags[11] is set
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.vbe_control_info dd ?
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.vbe_mode_info dd ?
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.vbe_mode dw ?
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.vbe_if_seg dw ?
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.vbe_if_off dw ?
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.vbe_if_length dw ?
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; if flags[12] is set
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.fb_addr dq ?
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.fb_pitch dd ?
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.fb_width dd ?
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.fb_height dd ?
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.fb_bpp db ?
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.fb_type db ?
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.fb_misc dw 3 dup ?
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}
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MULTIBOOT_DATA_MEM = 0x0001
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MULTIBOOT_DATA_BOOTDEV = 0x0002
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MULTIBOOT_DATA_CMDLINE = 0x0004
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MULTIBOOT_DATA_MODULES = 0x0008
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MULTIBOOT_DATA_MMAP = 0x0040
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MULTIBOOT_DATA_DRIVES = 0x0080
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MULTIBOOT_DATA_BOOTLOADER_NAME = 0x0200
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MULTIBOOT_DATA_VBE = 0x0800
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MULTIBOOT_DATA_FB = 0x1000
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struc MultibootMMap
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{
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.size dd ?
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.addr dq ?
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.length dq ?
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.type dd ?
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}
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MULTIBOOT_MEMORY_AVAILABLE = 0x1
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MULTIBOOT_MEMORY_RESERVED = 0x2
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MULTIBOOT_MEMORY_ACPI = 0x3
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MULTIBOOT_MEMORY_NVS = 0x4
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MULTIBOOT_MEMORY_BADPARAM = 0x5
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