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23 lines
445 B
23 lines
445 B
; SRs to find memory size and leave it as a "note" for the kernel
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[org 0x0000]
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sig_0x15: db "SMAP"
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; Descriptor Table for address ranges
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addr_rng_dt_start:
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addr_rng_low: dd 0
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addr_rng_high: dd 0
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addr_rng_len_low: dd 0
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addr_rng_len_high: dd 0
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addr_rng_type: dd 0
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addr_eng_dt_end:
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map_phys_mem_init:
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mov ebx, 0
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map_phys_mem:
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mov eax, 0xe820 ; Function code
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mov es, addr_rng_dt_start
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mov edx, sig_0x15 ; Signature
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int BIOS_PMEM_INT
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