Nero
27e4dec580
Implement loading BPB from media
2020-04-15 23:51:07 +02:00
Nero
23ddd6b41a
Implement some PoC of reading from disk
2020-04-15 00:17:58 +02:00
Nero
6b49a20865
Implement syscall subfunction jump table
2020-04-13 18:03:54 +02:00
Nero
39ef1f9a3e
Implement some syscall handling
2020-04-13 13:53:21 +00:00
Nero
6ba3e0c071
Implement stack switching for dos syscall entry point
2020-04-10 15:00:26 +00:00
Nero
f46871502c
Pave way for supporting FAT16 and FAT12
2020-04-06 19:20:15 +00:00
Nero
e34accfcff
Improve support for auto-selecting LBA addressing
2020-04-04 21:05:44 +00:00
Nero
1c6268798c
Fix rom builds
2020-04-04 21:04:36 +00:00
Nero
3b438074ef
Reorder fat32 bootsector to reduce number of calls/rets
2020-04-04 16:03:02 +00:00
Nero
1e99086fc6
Add CHS+LBA dual support for boot sector
2020-04-04 14:29:33 +00:00
Nero
dc5e437c2d
Revert "Remove unused stuff"
...
debug rom still uses printf
This reverts commit a9fa3d355e
2020-04-04 11:41:01 +00:00
Nero
a9fa3d355e
Remove unused stuff
2020-04-04 09:27:33 +00:00
Nero
91cad67415
Reboot after keypress instead of halting on boot failure
2020-04-03 19:45:49 +00:00
Nero
6eca218f8e
Explain the booterr code a bit
2020-04-03 19:43:10 +00:00
Nero
3da473a00c
Use optimized error handling for boot sector
2020-04-03 17:38:33 +00:00
Nero
cb48e628db
kernel stub: force large size to make sure cluster chaining works
2020-04-01 13:09:01 +00:00
Nero
1981a8efba
fat32 bs: use BPB include header and base off BP
...
We now set BP once at the start to point to the beginning of the BPB.
Encoding an direct address access can then be done relative to BP, which
saves an immediate byte per access.
2020-03-31 20:03:05 +00:00
Nero
9044e3948c
Remove BASE macro and companions
2020-03-31 19:46:59 +00:00
Nero
c67894551b
Use directory path for includes, make them use *.asm as extension
2020-03-31 18:43:38 +00:00
Nero
73fb2b1e81
Add include file for BPB data
2020-03-31 13:04:13 +00:00
Nero
eabb1d9fa9
Properly set up registers when chainloading from boot sector
2020-03-30 20:41:32 +00:00
Nero
bc096f41d3
Compact bootloader code
2020-03-30 19:43:07 +00:00
Nero
0b2a7e7b64
fat32 bootloader: implement directory recursing and kernel load
...
this is actually working now.
2020-03-30 18:50:17 +00:00
Nero
bbe006c9bc
Improve FAT offset calculation
2020-03-30 15:23:51 +00:00
Nero
d718777ef6
Mark path to kernel file with +s
...
This is actually a much easier way to find the kernel file than comparing
filenames and helps reducing the size of the bootsector.
2020-03-30 12:35:59 +00:00
Nero
955acdacba
Split code up into directories for bs and com binaries
2020-03-30 12:14:47 +00:00
Nero
5a24ceb9b8
Implement cluster chaining for FAT
2020-03-28 17:36:52 +00:00
Nero
76880e9275
Advance on bootloader: load cluster data
2020-03-25 21:19:40 +00:00
Nero
c51dca9949
add kernel stub to distfiles
...
this way i can test if the bootloader works as intended
2020-03-25 20:56:00 +00:00
Nero
398395371b
Improve inline commenting
2020-03-23 19:01:23 +00:00
Nero
660944e70f
Start working on FAT32 bootloader
2020-03-16 17:24:39 +00:00
Nero
65be1051b3
bmp2font: explain
2020-03-16 17:24:16 +00:00
Nero
764950b2a1
rename pxe: make clear its a bootloader
2020-03-16 17:23:59 +00:00
Nero
b3ae58175c
remove unused file
2020-03-02 22:31:13 +00:00
Nero
5eedddd0c9
Improve error handling in fat bs
2020-03-02 22:15:46 +00:00
Nero
59dd979feb
Fix missing org for hello.com
2020-03-02 20:45:18 +00:00
Nero
7143112a5b
fat: add fread
2020-03-02 20:45:06 +00:00
Nero
9288ad46a4
fat: rework bootloader
2020-03-02 19:44:37 +00:00
Nero
598a2c0fdf
random fixes
2020-03-02 12:10:21 +00:00
Nero
7cfd87b6b4
Add normal hello world program for testing
2020-03-02 11:57:43 +00:00
Nero
0f833da221
Boot signature via include
2020-03-01 17:20:03 +00:00
Nero
79bedd9013
Fixes for makefile
2020-03-01 17:08:25 +00:00
Nero
bc238a3bf9
i still dont know what im doing
2020-03-01 16:45:16 +00:00
Nero
4847eb4d88
Revert "Throw out previous x86 stuff"
...
This reverts commit 807db4a592
2020-03-01 12:03:35 +00:00
Nero
30ae244ef1
sigh. i dont know
2020-02-28 19:55:00 +00:00
Nero
f4f89e8e48
Fix broken argument handling
2020-01-13 00:50:43 +01:00
Nero
cd3da4faab
WIP on superzazu-based emulator
2019-12-22 12:57:53 +01:00
Nero
23c881edbf
Remove section in bios interface
2019-12-22 03:01:29 +01:00
Nero
f3612ddb95
Add 8080 emulator as submodule
2019-12-22 02:59:52 +01:00
Nero
807db4a592
Throw out previous x86 stuff
2019-12-22 02:52:40 +01:00
Nero