 Nero
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3a721063f4
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debug.rom: show CS during boot
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2019-11-04 20:35:01 +00:00 |
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Nero
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8b30a6c5e2
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find root directory for fcb opening
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2019-11-04 13:10:50 +00:00 |
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Nero
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b164c79f42
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Separate out headers for structures
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2019-10-30 13:10:23 +00:00 |
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Nero
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a49e3b2610
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Rework BDOS to make use of BIOS entrypoints
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2019-10-29 11:08:11 +00:00 |
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Nero
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af61db5e40
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Improve memory position handling
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2019-10-28 10:49:42 +00:00 |
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Nero
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47630b2c03
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Implement boot based on reserved sectors
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2019-10-28 10:38:18 +00:00 |
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Nero
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74fce7191f
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Add BIOS entrypoints to README
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2019-10-28 09:45:15 +00:00 |
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Nero
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f81de2bfe8
|
Rename kernel to bdos
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2019-10-27 18:59:42 +00:00 |
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Nero
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d789131eb6
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Merge table for zero page into main memory table
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2019-10-27 18:44:38 +00:00 |
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Nero
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2b6865dc04
|
Clarify BDOS scope
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2019-10-27 17:07:41 +00:00 |
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Nero
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0ac5679598
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Update memory layout in readme
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2019-10-27 17:06:31 +00:00 |
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Nero
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757a811988
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Refine opcode 8080 table
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2019-10-25 13:14:15 +00:00 |
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Nero
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ad8a347d7d
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bios8086: implement CHS disk i/o using int13h
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2019-10-25 13:09:53 +00:00 |
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Nero
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a016fb0981
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PoC CBIOS
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2019-10-24 23:11:19 +00:00 |
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Nero
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6e2b65e9c0
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Add 8080 opcode map
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2019-10-22 22:24:51 +00:00 |
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Nero
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6854176413
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Write some documentation on zero page layout
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2019-10-20 19:57:10 +00:00 |
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Nero
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da506d36ac
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Preserve AX on buffered input
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2019-10-20 19:45:55 +00:00 |
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Nero
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f3a6ae338f
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Move out console interfacing into separate file
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2019-10-20 19:11:44 +00:00 |
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Nero
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e86b1ba004
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Another attempt at implementing a block layer
|
2019-10-20 09:56:27 +00:00 |
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Nero
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6f7fc05171
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log2: implement using left rotate through carry
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2019-10-19 12:51:11 +00:00 |
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Nero
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6c23ec2fed
|
Fix boot order for floppy test
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2019-10-19 12:47:23 +00:00 |
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Nero
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7d99526b55
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debug.rom: show banner when loaded
|
2019-10-18 21:48:29 +00:00 |
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Nero
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ec4bdf649d
|
Rename programs/ to com/
|
2019-10-18 14:43:28 +00:00 |
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Nero
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50e58765b1
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Improve debug rom to catch common exception conditions
|
2019-10-18 13:50:42 +00:00 |
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Nero
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e70386bcfb
|
Mask raw directory bit when giving drive number to int13
|
2019-10-17 19:19:12 +00:00 |
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Nero
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b3014ef8e4
|
Meh
|
2019-10-16 21:09:31 +00:00 |
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Nero
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4abfab2812
|
Test with easier to implement EQU syntax
|
2019-10-15 20:37:14 +00:00 |
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Nero
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7dec8b6c81
|
Use nasm compat file to allow custom asm variant
(I dont want to re-implement all those nasm features later)
|
2019-10-14 21:04:42 +00:00 |
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Nero
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66f54f639c
|
WIP on fcb io
|
2019-10-14 17:59:48 +00:00 |
|
Nero
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a65f54b121
|
Advance on FCB disk i/o
|
2019-10-12 18:33:26 +00:00 |
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Nero
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e07e13fd35
|
Add hexdump for kernel
|
2019-10-12 15:10:39 +00:00 |
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Nero
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f6b8df0598
|
Remove misplaced data
|
2019-10-12 15:10:19 +00:00 |
|
Nero
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b641b5b441
|
Cosmetic fixes for emulator
|
2019-10-08 19:54:13 +00:00 |
|
Nero
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7ba68e13f7
|
Implement CP/M basic char io
|
2019-10-08 19:53:41 +00:00 |
|
Nero
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7877809bc1
|
WIP on FCB disk i/o
|
2019-10-08 17:54:39 +00:00 |
|
Nero
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58a95932b5
|
Cosmetic changes for README
|
2019-10-08 10:24:36 +00:00 |
|
Nero
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695a28cb0a
|
Fix table in readme
|
2019-10-08 10:23:28 +00:00 |
|
Nero
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7e8483053c
|
Write down some ideas in README
|
2019-10-08 10:22:31 +00:00 |
|
Nero
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9bce345a3b
|
Add string prefixes and inc/dec to emulator
|
2019-10-04 22:54:37 +00:00 |
|
Nero
|
569e11aceb
|
Advance work on emulator/assembler combo
|
2019-10-04 21:54:10 +00:00 |
|
Nero
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2d7707598a
|
Ignore emul binary in the future
|
2019-10-03 17:01:42 +00:00 |
|
Nero
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55db78a15d
|
Clean up code for conditional jumps
Amended: A binary file got in there
|
2019-10-03 17:00:00 +00:00 |
|
Nero
|
305663c110
|
Improve flag handling for emulator
|
2019-10-02 19:14:18 +00:00 |
|
Nero
|
a30f4f3287
|
Advance on 8086 emulator
|
2019-10-01 21:35:01 +00:00 |
|
Nero
|
6e7a6563d5
|
Improve register hygiene
|
2019-09-29 21:33:28 +00:00 |
|
Nero
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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
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a0f2a71066
|
WIP on loading files from disk
|
2019-09-29 21:25:29 +00:00 |
|
Nero
|
0896c77ae6
|
Remove config.sys
|
2019-09-29 21:21:24 +00:00 |
|
Nero
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bedceb28a4
|
Add some arithmetics to emulator
|
2019-09-29 12:23:59 +00:00 |
|
Nero
|
1ae3c7a0b9
|
Implement FCB parsing in kernel
|
2019-09-29 12:23:39 +00:00 |