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c604fd43e7
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Remove attempt of rom-based debugger
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2020-08-15 20:59:40 +00:00 |
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d6b5792ff7
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Make dprintf the default debugging facility
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2020-08-15 20:58:40 +00:00 |
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626b7e5624
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Add struc for disk parameter table
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2020-08-15 18:30:17 +00:00 |
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a90ca60422
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Add first steps of another assembler attempt
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2020-07-19 12:07:03 +02:00 |
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5382edc2ae
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Improve ordering of binary data in kernel
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2020-07-04 10:35:38 +02:00 |
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f9b180ea57
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Implement file descriptor table and CON as file descriptor
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2020-06-28 19:01:14 +02:00 |
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65564b78af
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Start working on rom-based kernel
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2020-05-29 00:32:30 +02:00 |
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04a7087d79
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debug: First steps on instruction decoding
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2020-05-19 23:10:20 +02:00 |
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e60e49735c
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debug: Add stub for instruction decoding
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2020-05-19 18:26:22 +02:00 |
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a31e574b3a
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debug: Split commands into thematically organized files
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2020-05-18 23:43:54 +02:00 |
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8056ad5cfb
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debug: commands are now always typed uppercase
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2020-05-18 23:12:58 +02:00 |
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d264404bb1
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debug: print register name when changing register
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2020-05-18 22:50:30 +02:00 |
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8407275ba9
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debug: Implement number parsing and editing of registers
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2020-05-18 22:35:41 +02:00 |
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a386416f28
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debug: fix check if there are arguments
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2020-05-18 20:17:58 +02:00 |
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fc1aa47039
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debug: Implement parsing of register names
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2020-05-18 20:05:06 +02:00 |
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2a7087a21f
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debug: Reduce stack usage on entry from 5 to 4 words
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2020-05-18 18:23:37 +02:00 |
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9ce6ec5476
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debug: Rework repl loop and implement help command '?'
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2020-05-17 22:46:11 +02:00 |
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31a72d594a
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debug: fix missing PnP product name string terminator
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2020-05-17 18:09:50 +02:00 |
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e30f99c1a7
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debug.rom: Allocate lowmem segment instead of full relocate
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2020-05-16 13:10:21 +00:00 |
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e217b70bb7
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Remove CP437 bitmap, i dont intend to use graphics mode for OS
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2020-05-14 19:18:34 +00:00 |
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df9f50c29a
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Remove leftover gitmodules
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2020-05-14 19:17:34 +00:00 |
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1647e70cae
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debug.rom: Implement cheapo versions of g and t commands
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2020-05-13 21:30:43 +00:00 |
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47037ad708
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debug rom: implement cmd loop
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2020-05-13 19:48:57 +00:00 |
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064b6ff6af
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debug.rom: re-implement displaying flags and returning to code
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2020-05-12 21:27:48 +00:00 |
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c8adeb35d2
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Drop debug.drv, rework debug rom instead
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2020-05-12 20:47:34 +00:00 |
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2569dde385
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Add WIP for new debugger
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2020-05-11 22:23:27 +00:00 |
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5129a5499e
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Implement calculation of number of clusters
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2020-05-11 21:19:51 +00:00 |
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efb5ad146c
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Dummy for loading rdos drvs via option rom
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2020-05-11 20:50:32 +00:00 |
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1b42f1a480
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Implement calculation for FAT position
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2020-05-10 16:47:48 +00:00 |
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2cb39a4ff1
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Implement lba read
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2020-05-08 20:48:23 +00:00 |
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a472c396e7
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Implement reading of BPB from FAT partition
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2020-05-07 22:56:37 +00:00 |
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8d28dc9f85
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Implement reading of partition offset and size
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2020-05-06 20:28:30 +00:00 |
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9377924eab
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Implement reading geometry info from floppy BPB
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2020-05-04 19:49:26 +00:00 |
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6317d48396
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Write down some roadmap
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2020-05-03 19:05:00 +02:00 |
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36f4673c91
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Another attempt on disk i/o
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2020-05-02 23:57:23 +02:00 |
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404825387b
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mbr: make use of BPB includes
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2020-04-30 20:22:14 +02:00 |
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6d1befb49f
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kernel/diskio: EBIOS access is first class citizen in kernel
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2020-04-28 22:09:56 +02:00 |
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b73bfbe043
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Split out kernel components in kernel/
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2020-04-27 15:56:41 +02:00 |
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2d949a01f8
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Implement whacky first version for 25h disk read
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2020-04-26 23:14:34 +02:00 |
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43e5cd6379
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Direct console input: Dont return non-ascii keypresses
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2020-04-25 21:54:15 +02:00 |
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da41f6b0e2
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Rework early startup and fix bss memory reservation
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2020-04-23 21:49:10 +02:00 |
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4804bf28ea
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Place variables into area after binary
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2020-04-23 21:36:20 +02:00 |
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3619a20703
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Implement some console i/o
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2020-04-23 21:35:28 +02:00 |
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035b69db10
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fat.bs: Implement correctly for FAT12
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2020-04-22 21:45:40 +02:00 |
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34ef468aa9
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fat.bs: Smaller BPB size when not FAT32
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2020-04-22 21:45:06 +02:00 |
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63e85af62f
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Fix building of hdd image
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2020-04-22 21:44:43 +02:00 |
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abc7b563cd
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Revamp MBR
New features:
- ES:DI (potential PnP structure) is preserved
- FAT detection now works by checking for BPB values
- Uses booterr procedure
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2020-04-21 23:27:00 +02:00 |
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bbfcd42f61
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Set up interrupt table at startup directly (less code), not calling setint
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2020-04-21 20:22:42 +02:00 |
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94829aed1e
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qemu-hdd: Use hdd image with full partition table
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2020-04-21 20:22:32 +02:00 |
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22c1d45e59
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Start document on EGA video
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2020-04-20 21:41:42 +02:00 |
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