Addr rng dt

rust
E. Almqvist 3 years ago
parent 0f0cf87e89
commit 1a5bcf7087
  1. 20
      bootloader/bios/memory.asm

@ -1,13 +1,5 @@
; SRs to find memory size and leave it as a "note" for the kernel
; Descriptor Table for address ranges
addr_rng_dt_start:
addr_rng_low: dd 0
addr_rng_high: dd 0
addr_rng_len_low: dd 0
addr_rng_len_high: dd 0
addr_rng_type: dd 0
addr_eng_dt_end:
map_phys_mem_init:
mov ebx, 0
map_phys_mem:
@ -15,7 +7,19 @@ map_phys_mem:
; Tell the CPU about the descriptors location (ES:DI)
;mov es, addr_rng_dt_start
;mov di,
mov ecx, ADDR_RNG_DT_SIZE
mov edx, 'SMAP' ; Signature
int BIOS_PMEM_INT
ret
addr_rng_dt_start:
addr_rng_low: dd 0
addr_rng_high: dd 0
addr_rng_len_low: dd 0
addr_rng_len_high: dd 0
addr_rng_type: dd 0
addr_rng_dt_end:
ADDR_RNG_DT_SIZE equ addr_rng_dt_end - addr_rng_dt_start

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