Commit Graph

145 Commits

Author SHA1 Message Date
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 97fe07a210 vbr: implement file searching in rootdir 2019-03-29 23:48:18 +00:00
Nero cb3c977286 vbr: bail out on disk read error 2019-03-29 22:32:50 +00:00
Nero f70242dfa2 vbr: display drive geometry 2019-03-29 21:40:44 +00:00
Nero 6bfb0dd21e vbr: read root directory into memory 2019-03-27 23:06:13 +00:00
Nero 7492e99c3f vbr: relocate to 0x00500 2019-03-27 23:05:46 +00:00
Nero c88395c12d vbr: work in progress on block reading 2019-03-27 22:05:00 +00:00
Nero 391a1aa7d5 vbr: CHS reading seems to work so far 2019-03-26 20:46:40 +00:00
Nero 96234c2a40 vbr: Parse CHS from BIOS to optionally overwrite hardcoded CHS data 2019-03-25 22:00:07 +00:00
Nero 2229c319b6 Add first steps for VBR bootloader 2019-03-25 08:51:37 +00:00