Commit Graph

132 Commits

Author SHA1 Message Date
9918f2367e Merge upstream changes from branch 'trunk' into fat32_sys_rewrite 2024-12-19 20:09:48 -05:00
56b86fe12e more bug catching after changing the location of data
also cleanup comment from previous bug
2024-12-19 18:59:34 -05:00
37eb87239c moved varibles passed from vbr to .data section
this is to work around having to save them without .bss ready
2024-12-19 15:18:28 -05:00
63a1a1beea might have fixed some of the boot_drive issues with ext_read 2024-12-19 13:13:46 -05:00
4535b89eaf clarify clobbers 2024-10-19 11:17:04 -04:00
ee9fd9b684 corrected a few instances of accessing boot_drive incorrectly after the location change 2024-10-19 11:08:19 -04:00
6ff9a2307f clear Next cluster data in bss on every NextCluster call 2024-10-19 10:54:58 -04:00
b7e2a8e886 use bx rel addressing for fat32_state in SearchFATDIR 2024-10-18 07:58:09 -04:00
94c2a1626d correct some field sizes 2024-10-18 07:57:42 -04:00
48f0de8f7b clean up 2024-10-18 07:30:23 -04:00
b606e28958 clean up of comments 2024-10-18 07:30:14 -04:00
45aeb9b3d0 ClusterToLBA to fastcall
cleanup of NextCluster
2024-10-17 20:36:05 -04:00
046821ff7a add fastcall-ish macro for light functions
only does a stack frame setup with no locals space
2024-10-17 20:35:12 -04:00
508bf1aa55 update a few missed fields and correct ALIGN on FSInfoPrinter
disable bad cluster jmp for now
2024-10-17 14:34:23 -04:00
ccf846909a update field name 2024-10-17 14:33:42 -04:00
9d4479bd86 clear dh and al 2024-10-17 14:17:15 -04:00
2b3ab1dc3a changed informational strings 2024-10-17 14:15:49 -04:00
85a8f0da1c rewrite InitFATDriver to use si/di/bx relative addresses 2024-10-17 10:34:32 -04:00
b5cc1c9ec1 move fsinfo just for my easy reading 2024-10-17 10:33:52 -04:00
e12ea89fda changing names of values to match spec more
also added prototype for FS info printer that will print some basic santity check type info.
2024-10-17 07:50:37 -04:00
e33f010f73 added carry and divz checks across the fat32 code
also use the pointers we have in bss to our saved data
2024-10-16 11:58:57 -04:00
c9f4b18d2b some debuging text for fat32 stuff 2024-10-15 20:37:49 -04:00
e680620148 remove some redundant reloads of si
use xchg to swap si/di instead of the stack
uninline ClusterToLBA call
2024-10-15 20:01:24 -04:00
56e8081118 magic debug before touching anything in error printer 2024-10-15 13:31:51 -04:00
5f9567d44e include disk signature and reserved bytes in part table struct 2024-10-15 12:51:34 -04:00
2020408e8d ha ha ha, again! 2024-10-15 12:51:02 -04:00
4660882edb change entry points (again) 2024-10-14 17:58:43 -04:00
f683b8fd17 16 KiB stage2 2024-10-14 17:58:30 -04:00
56c18d8457 correct drive_num argument on read_disk_raw 2024-10-14 13:18:41 -04:00
cfda93048b replace text documentation with markdown 2024-10-14 10:44:44 -04:00
c49de28a15 use bochs magic breakpoints in the error printer
makes it easier to get a good state to do some investigating before reseting.
2024-10-13 20:53:13 -04:00
cd833184da use bx addressing in read_disk_raw 2024-10-13 20:51:16 -04:00
f51d8b4142 initial work on a macro to call read_disk_raw 2024-10-13 16:37:52 -04:00
3693eca940 add reserved space for jmp short init at the start, technically this is part of the bpb anyways 2024-10-13 16:37:29 -04:00
a383f7cfb4 remove defs for memory locations (moving to bss) 2024-10-13 16:36:55 -04:00
eb97aac673 relocate code sections to end up with stage2 starting at 0x500 2024-10-12 22:14:47 -04:00
c60bad1066 reduced stage2 to 24KiB 2024-10-12 22:13:12 -04:00
050f90517a follow standard proceedure and reallocate the mbr to 0x600 2024-10-12 21:21:43 -04:00
555cf1271b partially roll back changing the segment to 0x07E0 2024-10-12 20:25:04 -04:00
b49b2bae68 correct typo 2024-10-12 15:39:16 -04:00
5abbfa4d15 definition corrections in part table stuff 2024-10-12 15:39:04 -04:00
ac6ad77249 renamed mem.inc and removed unused items 2024-10-12 15:38:24 -04:00
bc89850c00 first version of kmemcpy5/kmemset4 2024-10-12 14:48:26 -04:00
12fc8a1e37 use NASM defined size value from structure macro 2024-10-12 12:58:32 -04:00
baa146bef5 BIOSMemoryMap is a location in bss now, use lea 2024-10-12 12:58:16 -04:00
5a74cd86ad moved stuff that is only referenced in Stage2 to stage2 bss 2024-10-12 12:55:29 -04:00
9cde0333e6 remove PRINT_FUNC macro...this isn't it chief 2024-10-12 11:27:55 -04:00
a3f0684c85 added bochs debug wrappers 2024-10-11 19:03:27 -04:00
a8da6eef72 split e820 bios call documentation to its own file under docs/ 2024-10-11 17:20:53 -04:00
d9e46f5571 correct src size in op 2024-10-11 16:52:57 -04:00