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4535b89eaf
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clarify clobbers
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2024-10-19 11:17:04 -04:00 |
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ee9fd9b684
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corrected a few instances of accessing boot_drive incorrectly after the location change
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2024-10-19 11:08:19 -04:00 |
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6ff9a2307f
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clear Next cluster data in bss on every NextCluster call
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2024-10-19 10:54:58 -04:00 |
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b7e2a8e886
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use bx rel addressing for fat32_state in SearchFATDIR
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2024-10-18 07:58:09 -04:00 |
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94c2a1626d
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correct some field sizes
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2024-10-18 07:57:42 -04:00 |
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48f0de8f7b
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clean up
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2024-10-18 07:30:23 -04:00 |
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b606e28958
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clean up of comments
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2024-10-18 07:30:14 -04:00 |
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45aeb9b3d0
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ClusterToLBA to fastcall
cleanup of NextCluster
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2024-10-17 20:36:05 -04:00 |
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046821ff7a
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add fastcall-ish macro for light functions
only does a stack frame setup with no locals space
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2024-10-17 20:35:12 -04:00 |
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508bf1aa55
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update a few missed fields and correct ALIGN on FSInfoPrinter
disable bad cluster jmp for now
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2024-10-17 14:34:23 -04:00 |
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ccf846909a
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update field name
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2024-10-17 14:33:42 -04:00 |
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9d4479bd86
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clear dh and al
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2024-10-17 14:17:15 -04:00 |
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2b3ab1dc3a
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changed informational strings
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2024-10-17 14:15:49 -04:00 |
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85a8f0da1c
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rewrite InitFATDriver to use si/di/bx relative addresses
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2024-10-17 10:34:32 -04:00 |
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b5cc1c9ec1
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move fsinfo just for my easy reading
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2024-10-17 10:33:52 -04:00 |
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e12ea89fda
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changing names of values to match spec more
also added prototype for FS info printer that will print some basic santity check type info.
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2024-10-17 07:50:37 -04:00 |
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e33f010f73
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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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c9f4b18d2b
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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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e680620148
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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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56e8081118
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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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5f9567d44e
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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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2020408e8d
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ha ha ha, again!
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2024-10-15 12:51:02 -04:00 |
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4660882edb
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change entry points (again)
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2024-10-14 17:58:43 -04:00 |
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f683b8fd17
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16 KiB stage2
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2024-10-14 17:58:30 -04:00 |
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56c18d8457
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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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cfda93048b
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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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c49de28a15
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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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cd833184da
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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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f51d8b4142
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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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3693eca940
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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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a383f7cfb4
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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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eb97aac673
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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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c60bad1066
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reduced stage2 to 24KiB
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2024-10-12 22:13:12 -04:00 |
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050f90517a
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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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555cf1271b
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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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b49b2bae68
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correct typo
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2024-10-12 15:39:16 -04:00 |
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5abbfa4d15
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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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ac6ad77249
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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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bc89850c00
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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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12fc8a1e37
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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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baa146bef5
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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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5a74cd86ad
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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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9cde0333e6
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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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a3f0684c85
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added bochs debug wrappers
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2024-10-11 19:03:27 -04:00 |
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a8da6eef72
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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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d9e46f5571
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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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0250d9351d
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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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e8fb22c826
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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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3a819a685a
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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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5ccd2fb12f
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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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