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4d8406aa3a
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rename parse to scan, more intuitive for C programmers
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2021-12-11 18:21:00 +00:00 |
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725213b581
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sys: parse drive number and load BPB
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2021-12-11 16:46:00 +00:00 |
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a3ef693059
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commit whatever is in my worktree rn
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2021-12-10 10:41:02 +00:00 |
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1dea0c40bc
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Add skeleton of assembler
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2021-04-20 21:23:40 +00:00 |
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24f04792f6
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Makefile: allow COM program testing via dosbox
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2021-04-20 16:27:32 +00:00 |
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d9affa3cae
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Kernel: Fix segmenting bugs
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2021-04-20 16:27:10 +00:00 |
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39a1ed085c
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Implement reading/writing a DTA full from a cluster without ptr advance
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2021-04-05 23:05:08 +00:00 |
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85d0949ec7
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uartctrl: Implement CP437 to DEC VT character conversion
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2021-04-05 18:59:44 +00:00 |
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963aebd948
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Add uartctrl.rom: Control PC via COM1 attached terminal
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2021-04-04 21:41:22 +00:00 |
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b617709684
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Fix rootdir.asm re-using potentially wrong DS
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2021-03-19 19:26:38 +00:00 |
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5e3ae0aa08
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Put rootdir and cluster access into separate files
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2021-03-19 19:01:38 +00:00 |
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fbab632616
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Implement file open
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2021-03-19 18:50:50 +00:00 |
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f702006582
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implement fcb search with more efficient segmenting and dta use
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2021-02-25 00:45:56 +00:00 |
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7c4b84ecb3
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word-align disk buffer
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2021-02-19 19:41:34 +00:00 |
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ec205407a7
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fix conout using stray DS
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2021-02-19 19:41:24 +00:00 |
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a91fb3de0d
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Implement common char i/o functions
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2021-02-19 08:57:21 +00:00 |
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d7c1781d2f
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mbr: set up first 7 bytes of kernel PSP
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2021-02-18 20:20:40 +00:00 |
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78233db88d
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fix nasm orphaned labels warnings
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2021-02-18 20:20:14 +00:00 |
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0b7e4cb3a4
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Make boot file name configurable
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2021-02-18 19:38:56 +00:00 |
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d142fb4f39
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Omit printing dots from MBR
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2021-02-18 19:38:42 +00:00 |
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8131db9b29
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Re-add support for booting from qemu harddisk
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2021-02-18 19:04:36 +00:00 |
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84b754551c
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Restructure kernel to use 1-segment COM convention
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2021-02-07 16:17:31 +00:00 |
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71c89387fc
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New bootloader concept: sys-like util to generate a boot sector
Right now only floppies are supported
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2021-02-03 00:27:44 +00:00 |
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19f598251d
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Work monitor program up to usable state
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2021-01-28 23:32:31 +00:00 |
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daeb3891dd
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Add monitor program for debugging disk i/o
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2021-01-28 21:16:52 +00:00 |
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ff179a5e98
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Remove rom and pxe boot related stuff
I dont intend to ever implement that
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2021-01-23 17:44:18 +00:00 |
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ebd356ed8e
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Implement file search in directory
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2021-01-23 17:32:53 +00:00 |
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4530866130
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fix psp/setdta corrupting DS
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2021-01-21 22:30:35 +00:00 |
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1ec84fc411
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Single out PSP management
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2021-01-21 22:28:57 +00:00 |
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f8799e3692
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add ihex bootsector
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2021-01-15 19:49:08 +00:00 |
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3056d659fa
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fix syscall gateway not preserving DS on entry
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2021-01-13 18:36:12 +00:00 |
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440187c2a8
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Harden drive.asm against unexpected DS and ES values
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2021-01-13 18:32:17 +00:00 |
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df243e668e
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Remove PIC functionality from syscall.asm
Makes things easier
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2021-01-13 17:38:22 +00:00 |
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23c6223055
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Relocate kernel to 0x0700 and use sections proper
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2021-01-13 17:21:10 +00:00 |
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4046dd7d6c
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Improve syscall entrypoint
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2021-01-13 17:20:49 +00:00 |
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750bfbdc60
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Remove outdated comments
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2021-01-05 00:15:36 +00:00 |
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34023678a4
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Implement current drive for user programs
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2021-01-04 23:29:50 +00:00 |
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7e2e91b2b7
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Reorder code and remove unused farptr components
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2021-01-04 23:19:14 +00:00 |
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0256d6ab36
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Improve syscall gateway: now position-independent
Also it now keeps all register values except SS:SP on entry.
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2021-01-04 23:01:14 +00:00 |
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fb4bbfc8cf
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Continued development on int 21h interface
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2021-01-03 18:11:41 +00:00 |
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3f8cfaac42
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Remove debugging output
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2021-01-03 18:10:54 +00:00 |
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1dbfb2f592
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Implement entrypoint and table for syscalls
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2021-01-02 03:45:03 +00:00 |
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015eea2f2f
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Rename fndfst to open
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2021-01-02 02:48:04 +00:00 |
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9a1c4139a6
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Implement searching directory for exact matches
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2021-01-02 02:07:40 +00:00 |
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7754312609
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remove unused kernel/main
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2020-12-27 00:25:30 +00:00 |
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2bb40e315c
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Fix ebios dap packet: wrong size
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2020-12-26 20:58:51 +00:00 |
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af5df85c16
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Use ebios extensions if enabled
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2020-12-26 20:54:39 +00:00 |
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2d97bb57e5
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Fix mbr: DAP size was incorrectly set to zero
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2020-12-26 18:46:16 +00:00 |
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c75b323d31
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Add support for hard disks
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2020-12-26 17:44:48 +00:00 |
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b8b56e1f45
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make logdrv also use int13 stub
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2020-12-26 16:43:04 +00:00 |
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