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441bcbf40f
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chartab: migrate to com format and awk assembler
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2023-01-01 21:42:02 +00:00 |
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77b1ad7cef
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resume working; import awk-based assembler
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2023-01-01 21:09:31 +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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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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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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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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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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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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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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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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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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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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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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c5afc6ec61
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Add printf facility for kernel to allow debug messages on phys. system
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2020-12-26 16:03:15 +00:00 |
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0a2a0e4659
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Support managing floppy parameter table
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2020-12-22 21:14:16 +00:00 |
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de04b5ca01
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Make logging in drive a no-op if drive already logged in
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2020-12-17 00:41:53 +00:00 |
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e096745c13
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Implement map-like sector access for floppy drives
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2020-12-15 23:29:35 +00:00 |
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c0bd238d54
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New bootsect program to dump bios data area, aid for debugging hw
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2020-12-15 20:16:42 +00:00 |
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c06c6ac918
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fat vbr: fix incorrect addition of partition offset
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2020-10-25 14:22:53 +00:00 |
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50aa6e4eec
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Use uppercase non-struct constants for BPB
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2020-10-25 09:15:33 +00:00 |
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dc6035fe9d
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Protypical implementation of DPT copying
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2020-10-24 22:50:23 +00:00 |
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ca3eebd692
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Remove fields from BPB that are EBPB actually
This is just a trick so i can use bpb_size in the kernel later,
omitting things that are not relevant to interfacing the FS.
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2020-10-15 20:20:17 +00:00 |
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c41782c78f
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Build drive selection logic for FCBs
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2020-10-13 20:10:23 +00:00 |
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4e779c5a22
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Lay out skeletons for FCB handling
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2020-10-11 21:33:01 +00:00 |
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31c6ef5876
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boot/kernel: print banner
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2020-09-27 15:45:19 +00:00 |
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729e6790ef
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boot/fat: Save a byte restoring DL
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2020-09-27 15:10:28 +00:00 |
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909349a4cf
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boot/fat: Shave off a byte by storing final address on stack
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2020-09-27 11:25:57 +00:00 |
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386e91b4c8
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boot/fat: Fix incorrect initialisation of dx
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2020-09-27 10:48:05 +00:00 |
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2dc6970721
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boot/fat: Use segmentation to allow up to 64Kb fat/kernel size
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2020-09-27 10:40:42 +00:00 |
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adf67d9723
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Rework fat boot sector, load FAT only once instead of partial
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2020-09-23 23:01:50 +00:00 |
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31eac279c2
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Revert to more sensible kernel.bs boot scheme
I think i should consider it a necessity that the kernel is accessible
as a regular file. This makes installing rdos on another blockdev
much easier.
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2020-09-20 19:58:19 +02:00 |
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8ed9fe7465
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Fix hdd booting using bpb struc
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2020-09-19 08:22:50 +00:00 |
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1d64c2364d
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Improve build transparency (documentation and inline version number)
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2020-09-17 08:59:22 +00:00 |
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8e87cf0f75
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Load kernel from reserved sectors in fatfs
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2020-09-17 05:57:46 +00:00 |
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9cd4c04c42
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Make kernel and fat.bs use BPB struct
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2020-09-15 21:45:29 +02:00 |
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303b1756e0
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Fuck up the kernel, i have other ideas now
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2020-09-15 21:44:32 +02:00 |
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352540bd25
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kernel: First steps of calculating drive tab data from BPB
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2020-08-31 20:11:05 +00:00 |
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cc3fe6c4ee
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kernel: fix banner printing
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2020-08-27 21:01:41 +00:00 |
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