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a830191547
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added carry and divz checks across the fat32 code
also use the pointers we have in bss to our saved data
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2024-10-16 11:58:57 -04:00 |
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38bcd93ced
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some debuging text for fat32 stuff
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2024-10-15 20:37:49 -04:00 |
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f1842d0cbc
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remove some redundant reloads of si
use xchg to swap si/di instead of the stack
uninline ClusterToLBA call
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2024-10-15 20:01:24 -04:00 |
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6731e03e38
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magic debug before touching anything in error printer
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2024-10-15 13:31:51 -04:00 |
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f81f358987
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include disk signature and reserved bytes in part table struct
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2024-10-15 12:51:34 -04:00 |
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41db11cc64
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ha ha ha, again!
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2024-10-15 12:51:02 -04:00 |
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0f04e682df
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change entry points (again)
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2024-10-14 17:58:43 -04:00 |
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36fcb5faf0
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16 KiB stage2
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2024-10-14 17:58:30 -04:00 |
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a5296bb438
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correct drive_num argument on read_disk_raw
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2024-10-14 13:18:41 -04:00 |
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933cccb88e
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replace text documentation with markdown
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2024-10-14 10:44:44 -04:00 |
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ad2d37c63b
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use bochs magic breakpoints in the error printer
makes it easier to get a good state to do some investigating before reseting.
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2024-10-13 20:53:13 -04:00 |
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8537d6cd5e
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use bx addressing in read_disk_raw
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2024-10-13 20:51:16 -04:00 |
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29db27925f
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initial work on a macro to call read_disk_raw
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2024-10-13 16:37:52 -04:00 |
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7f06d47f32
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add reserved space for jmp short init at the start, technically this is part of the bpb anyways
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2024-10-13 16:37:29 -04:00 |
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4faffbf7fe
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remove defs for memory locations (moving to bss)
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2024-10-13 16:36:55 -04:00 |
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bd40d6d324
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relocate code sections to end up with stage2 starting at 0x500
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2024-10-12 22:14:47 -04:00 |
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3d3bcc6ea5
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reduced stage2 to 24KiB
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2024-10-12 22:13:12 -04:00 |
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d1f8ec4a9e
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follow standard proceedure and reallocate the mbr to 0x600
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2024-10-12 21:21:43 -04:00 |
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2fa03c31d7
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partially roll back changing the segment to 0x07E0
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2024-10-12 20:25:04 -04:00 |
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54b7a81648
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correct typo
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2024-10-12 15:39:16 -04:00 |
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1d84f52690
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definition corrections in part table stuff
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2024-10-12 15:39:04 -04:00 |
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73b42c66fd
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renamed mem.inc and removed unused items
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2024-10-12 15:38:24 -04:00 |
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9656a9465b
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first version of kmemcpy5/kmemset4
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2024-10-12 14:48:26 -04:00 |
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bd80f48b1b
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use NASM defined size value from structure macro
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2024-10-12 12:58:32 -04:00 |
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3fbfcbef53
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BIOSMemoryMap is a location in bss now, use lea
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2024-10-12 12:58:16 -04:00 |
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a523e17d27
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moved stuff that is only referenced in Stage2 to stage2 bss
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2024-10-12 12:55:29 -04:00 |
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e648fd0de6
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remove PRINT_FUNC macro...this isn't it chief
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2024-10-12 11:27:55 -04:00 |
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e5fb1b41eb
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added bochs debug wrappers
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2024-10-11 19:03:27 -04:00 |
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208729ed01
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split e820 bios call documentation to its own file under docs/
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2024-10-11 17:20:53 -04:00 |
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086cf9d8ea
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correct src size in op
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2024-10-11 16:52:57 -04:00 |
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095822fa27
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inlined ClusterToLBA
removed caller save kludge for now
init first_root_dir_sector from ebpb data
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2024-10-11 15:55:24 -04:00 |
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71f13fd6b5
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somewhat of a cludge, but added a macro to save all caller saved regs
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2024-10-11 14:25:01 -04:00 |
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4af0637c7f
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use kmemset to 0 out fat32_state in InitFATDriver
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2024-10-11 13:00:45 -04:00 |
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07197b0d5b
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reduce proceedure local storage to 16 bytes
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2024-10-11 12:59:36 -04:00 |
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75c046f9cd
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use gs for vesa framebuffer (was fs)
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2024-10-08 20:23:16 -04:00 |
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586f3f0106
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converted error handler to a 16bit far jump
optimized the early error printer a bit to save some bytes
removed DEBUG_HCF macro
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2024-10-08 08:53:30 -04:00 |
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8301fc20a8
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renamed files to show code vs defs
files that actually include code should be in .nasm files
defines/macros/non-code should be in .inc files
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2024-10-07 20:41:15 -04:00 |
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145e9fbaa9
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fixed read_disk_raw in ReadFATCluster
boot_drive and partition_offset are global pointers now
removed an extra error from mbr disk read
and some general formating and cleanup 😅
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2024-10-05 20:14:00 -04:00 |
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8f95c8f267
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tons more work on modularizing the code
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2024-10-05 18:55:00 -04:00 |
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5440a1ae61
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more modularization and updating date in MIT licence header
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2024-10-05 13:35:39 -04:00 |
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d6af15a7a6
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typo fix
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2024-10-05 12:16:31 -04:00 |
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a4fa48949c
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Move fat32 and BIOS functions to their own files
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2024-10-05 12:04:40 -04:00 |
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e162e268c4
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remove the dword stack macros and just use the 32bit override
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2024-10-05 10:13:18 -04:00 |
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62f036b645
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change test kernel stage name
also pointed up a bug in memory.inc
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2024-10-04 22:17:35 -04:00 |
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fdbfd811d5
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increased disk size and moved bpb/ebpb a bit
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2024-10-04 14:26:10 -04:00 |
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86fd76e909
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remove old kmem functions
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2024-10-04 09:57:32 -04:00 |
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63e6f1fac8
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kmemset and kmemcpy cdecl16 versions
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2024-10-04 09:53:01 -04:00 |
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4ee766304b
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seperate error code for reading disk in mbr vs vbr vs stage2
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2024-10-04 09:52:24 -04:00 |
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d5aa70daf3
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add macros to prevent __CDECL16 stuff from being defined multiple times
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2024-10-04 09:51:44 -04:00 |
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41b9bf5134
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remove this and add it back to vbr.nasm
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2024-10-03 20:59:25 -04:00 |
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