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0bd59dd252
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Remove remnants from earlier kernel attempts
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2022-01-01 21:27:08 +00:00 |
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f7d7f48026
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Implement syscall interface and version data
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2022-01-01 21:22:37 +00:00 |
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576b2c6546
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kernel: add syscall handling stub
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2022-01-01 03:42:01 +00:00 |
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c0b8c107c4
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Remove leftovers from previous experiments
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2021-12-29 01:08:27 +00:00 |
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c58f367330
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makefile: allow creation of .hex files
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2021-12-29 00:46:52 +00:00 |
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9b87b9fe66
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Move in char functions
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2021-12-29 00:46:02 +00:00 |
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f1c414bb26
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implement bpb parsing
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2021-12-20 20:08:37 +00:00 |
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e26adff688
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Workstate on disk I/O rework
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2021-12-16 12:27:23 +00:00 |
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79a86bad49
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host/sys: use segment 60h for kernel
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2021-12-14 18:07:52 +00:00 |
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e2d244a919
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remove bios roms
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2021-12-14 17:46:40 +00:00 |
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02a7627734
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makefile: Add size output for generated binaries
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2021-12-14 17:44:39 +00:00 |
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95381ffdc3
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makefile: cosmetics
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2021-12-14 17:44:18 +00:00 |
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b7d596d758
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kernel: integrate existing farptr and drive code
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2021-12-14 17:43:47 +00:00 |
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a3dfd2c36c
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add BPB definitions as stand-alone include
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2021-12-14 15:24:36 +00:00 |
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467054def6
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sys: calculate length of cluster series
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2021-12-14 15:23:49 +00:00 |
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cfadc73493
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sys: implement boot sector code plus target track calculation
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2021-12-13 18:45:36 +00:00 |
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b8672f0011
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update makefile: fixes and enable listings per default
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2021-12-12 11:50:32 +00:00 |
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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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