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convert MBR, VBR, & Stage2 to use a BSS section. #3

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Nivirx merged 25 commits from bss-setup into trunk 2024-10-13 18:05:19 -04:00
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include/early_mem.inc
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@@ -43,28 +43,6 @@
; 0x0000000100000000 ??? ??? (whatever exists) RAM -- free for use (PAE/64bit)/More Extended memory ; 0x0000000100000000 ??? ??? (whatever exists) RAM -- free for use (PAE/64bit)/More Extended memory
; ???????????????? ??? ??? Potentially usable for memory mapped PCI devices in modern hardware (but typically not, due to backward compatibility) ; ???????????????? ??? ??? Potentially usable for memory mapped PCI devices in modern hardware (but typically not, due to backward compatibility)
; copy of partition table, 72 bytes
%define partition_table 0x3000
%define partition_table_SIZE 72
; copy of FAT32 BPB, 33 bytes (+1 to the next value to align to uint16_t)
;0x3048
%define fat32_bpb 0x304A
%define fat32_bpb_SIZE 36
; copy of FAT32 EBPB, 54 bytes
;0x306A
%define fat32_ebpb 0x306E
%define fat32_ebpb_SIZE 54
; next free space is 0x32D0
%define fat32_nc_data 0x35D0
%define fat32_nc_data_SIZE 16
; lba_packet for raw_disk_read
%define lba_packet 0x4000
;PhysicalAddress = Segment * 16 + Offset ;PhysicalAddress = Segment * 16 + Offset
%define SEG_TO_LINEAR(s,o) ((s << 4) + o) %define SEG_TO_LINEAR(s,o) ((s << 4) + o)