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
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
955acdacba
Split code up into directories for bs and com binaries
2020-03-30 12:14:47 +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
807db4a592
Throw out previous x86 stuff
2019-12-22 02:52:40 +01:00
Nero
eb67071ffb
Ubuntu needs stdint.h for uint8_t
2019-11-24 11:28:39 +00:00
Nero
af61db5e40
Improve memory position handling
2019-10-28 10:49:42 +00:00
Nero
47630b2c03
Implement boot based on reserved sectors
2019-10-28 10:38:18 +00:00
Nero
f81de2bfe8
Rename kernel to bdos
2019-10-27 18:59:42 +00:00
Nero
f6b8df0598
Remove misplaced data
2019-10-12 15:10:19 +00:00
Nero
d1dab01633
Rename rdos.sys to rdos.bin
...
*.sys is meant for DOS-like driver binaries. I actually have a flat
binary with a specific load offset.
2019-09-29 21:26:59 +00:00
Nero
56f9df5773
Throw DOS api away, re-layout memory to fit CP/M model
2019-09-29 08:52:00 +00:00
Nero
80a7b03ddc
Provide config file via CX (len) and BX (ptr) to kernel entry
2019-09-24 21:33:04 +00:00
Nero
a4e6a943b0
Make bootloader load both kernel and kernel config
2019-09-24 21:14:29 +00:00
Nero
cd7aafde09
Run kernel with from offset 0
...
I try to get the interrupt handlers into a offset as low as possible.
This is necessity if i want to relocate it later on its own.
For running from HMA, a minimal offset of 16 bytes would still be
necessary.
2019-09-23 22:06:29 +00:00
Nero
df4d3a90e3
Use SYS extension for kernel
2019-09-23 22:05:01 +00:00
Nero
0b7d141af7
Add warning about mformat overwriting bootsector code
2019-09-23 21:19:12 +00:00
Nero
705cd5c725
Remove command line parsing from bootloader
2019-09-23 20:25:39 +00:00
Nero
54149839a3
Rename fatvbr -> fat, generalize makefile
2019-09-21 18:05:41 +00:00
Nero
c70f388548
Get MBR ready, add hdimage target
2019-09-17 22:41:39 +00:00
Nero
7c4a618385
Add first attempt of a MBR
2019-09-17 21:53:10 +00:00
Nero
da03aa1481
Relocate boot sector to 0x600
2019-09-16 12:05:15 +00:00
Nero
fe42e9145a
fatvbr: correctly setup segment registers
2019-09-15 19:49:58 +00:00
Nero
bfb5b227b6
Fix cmdline setup in fatvbr
2019-09-15 17:51:44 +00:00
Nero
e143159a7a
Rename floppy bootsec into fatvbr, thats more accurate
2019-09-15 17:33:01 +00:00
Nero
567e09f7e9
Bootloader: parse cmdline field
2019-09-15 17:26:09 +00:00
Nero
4c9086e365
Rework bootloader to have adjustable memory layout
2019-09-14 13:18:23 +00:00
Nero
05c7e905d0
Fix copying of kernel arguments
2019-09-08 11:00:19 +00:00
Nero
b6972dcc69
Fix floppy VBR: wrong stack location
2019-09-08 10:03:00 +00:00
Nero
e7108f6622
Fix max argument length 126 -> 127
2019-09-08 01:05:32 +00:00
Nero
d853b87ec7
Use COM-based format, get bootloader working
2019-09-08 01:04:01 +00:00
Nero
6b424844e9
Optimize fix_chs code
2019-06-24 17:05:57 +00:00
Nero
78d5b6aa28
Add prototype for serial bootloader
2019-06-24 16:47:31 +00:00
Nero
1259fe14fe
Rework VBR
2019-05-19 20:07:08 +00:00
Nero
c288bbffb9
Fix alignment fuckup in VBR
2019-05-07 17:50:07 +00:00
Nero
9b1c54f5d3
Disable interrupts during boot
2019-05-02 20:51:20 +00:00
Nero
d8fe1b211c
Change kernel blob format to be option rom compatible
2019-04-20 21:02:35 +00:00
Nero
8cdc21b596
Relocate kernel to 0x01000 per convention
2019-04-16 07:22:53 +00:00
Nero
9a6ecabfd7
vbr: now able to load first cluster
2019-03-31 20:53:14 +00:00
Nero
dad80532ab
Allow arbitrary floppy sizes
2019-03-31 13:22:24 +00:00
Nero
208b2f95b5
vbr: Reorder code, improve error behavior
2019-03-31 13:08:39 +00:00
Nero
6e209d9e55
vbr: reduce size for error reporting
2019-03-31 12:44:50 +00:00
Nero
9aa032a90c
Rename vbr to fat12vbr
2019-03-30 12:39:53 +00:00
Nero