Kartik K. Agaram
3240c761e8
.
2021-03-16 23:47:18 -07:00
Kartik K. Agaram
eae5483bf6
.
2021-03-16 12:46:53 -07:00
Kartik K. Agaram
697f1e7516
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2021-03-15 22:11:17 -07:00
Kartik K. Agaram
2998866b88
.
2021-03-15 21:59:08 -07:00
Kartik K. Agaram
2f251aec4d
undo previous commit
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It was just an experiment.
2021-03-15 21:54:58 -07:00
Kartik K. Agaram
7119d79b8a
snapshot: write to disk using BIOS
...
Requires the following commands:
dd if=/dev/zero of=data.img count=20160
./translate life.mu
qemu-system-i386 -hda disk.img -hdb data.img
Before running Qemu, data.img will contain all 0s.
After quitting Qemu, data.img will contain the first 512 bytes of disk.img.
2021-03-15 21:46:53 -07:00
Kartik K. Agaram
fd224d83f5
fix a failing test in pack.subx
2021-03-15 21:28:15 -07:00
Kartik K. Agaram
bc182ae559
boot.subx is now clean SubX
2021-03-15 21:22:30 -07:00
Kartik K. Agaram
341f0c59be
.
2021-03-15 20:41:13 -07:00
Kartik K. Agaram
460528e85b
reintroduce Entry label
2021-03-15 20:41:13 -07:00
Kartik K. Agaram
9d4ca5f59a
clean up padding
2021-03-15 20:36:00 -07:00
Kartik K. Agaram
3a0664e186
clean up magic constants
2021-03-15 20:32:26 -07:00
Kartik K. Agaram
be42a9c3ec
first pass translating all of boot.subx
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There's still a few places to clean up surrounded in:
== data
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== code
2021-03-15 15:09:38 -07:00
Kartik K. Agaram
93954f7ccd
.
2021-03-15 15:04:31 -07:00
Kartik K. Agaram
2a8f664166
get shell/ working
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This mutates the expected binary.
2021-03-15 15:03:33 -07:00
Kartik K. Agaram
dae5705067
.
2021-03-15 10:04:16 -07:00
Kartik K. Agaram
e352596792
.
2021-03-15 09:41:36 -07:00
Kartik K. Agaram
4f73f09f1a
.
2021-03-15 09:22:27 -07:00
Kartik K. Agaram
5a824b6e9a
manual labels remaining in boot.subx: keyboard + 1
2021-03-15 09:18:44 -07:00
Kartik K. Agaram
e35d4f46fd
.
2021-03-15 09:17:15 -07:00
Kartik K. Agaram
4374da4d86
clean up padding
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I'm going to explicitly show all reserved data even if I don't use it.
Segment headers are only for padding.
2021-03-15 00:16:19 -07:00
Kartik K. Agaram
dfd80bf74b
first pass translating boot sector
2021-03-15 00:08:08 -07:00
Kartik K. Agaram
e045516014
.
2021-03-15 00:05:14 -07:00
Kartik K. Agaram
a718f6a2ef
.
2021-03-15 00:04:21 -07:00
Kartik K. Agaram
3ca4728330
.
2021-03-14 23:50:16 -07:00
Kartik K. Agaram
174925e6f9
.
2021-03-14 23:34:41 -07:00
Kartik K. Agaram
4f7758fa15
first use of the padding segment selector
2021-03-14 23:30:58 -07:00
Kartik K. Agaram
ee81002eb0
.
2021-03-14 23:24:02 -07:00
Kartik K. Agaram
5c1186a77b
fix a few TODOs that mutate the expected binary
2021-03-14 23:04:00 -07:00
Kartik K. Agaram
fba0a56add
.
2021-03-14 22:56:51 -07:00
Kartik K. Agaram
dda5fd08d8
.
2021-03-14 22:46:03 -07:00
Kartik K. Agaram
0e5d7e0624
.
2021-03-14 22:31:42 -07:00
Kartik K. Agaram
97c0176a18
.
2021-03-14 22:29:12 -07:00
Kartik K. Agaram
3192230045
.
2021-03-14 22:23:02 -07:00
Kartik K. Agaram
8c89b047f5
.
2021-03-14 22:20:46 -07:00
Kartik K. Agaram
4d0db2c94e
fix a benign bug so far
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I'd been assuming that the image would be identical if it worked, but I
need to actually validate this at each step:
./translate life.mu && qemu-system-i386 disk.img && diff disk.img 0
The plan is to keep the binary identical until I finish translating boot.subx.
Then I can remove obsolete padding.
2021-03-14 22:12:34 -07:00
Kartik K. Agaram
cc7a44f9df
.
2021-03-14 21:58:23 -07:00
Kartik K. Agaram
fa2c1c040c
start converting boot.subx to real SubX
...
Just one instruction translated so far. The rest is treated as data.
Currently programs only work because the toolchain treats boot.subx as
all data. As we turn it into code we'll move the '== data' segment boundary
further down.
2021-03-14 21:55:08 -07:00
Kartik K. Agaram
98feca922e
rename boot.hex to boot.subx
2021-03-14 21:41:47 -07:00
Kartik K. Agaram
da438fa9f5
treat boot.hex as a SubX file
2021-03-14 21:36:31 -07:00
Kartik K. Agaram
43e8194435
.
2021-03-14 21:14:10 -07:00
Kartik K. Agaram
6525ccc8ec
survey_baremetal: padding between segments
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Optional.
2021-03-14 19:35:03 -07:00
Kartik K. Agaram
1dc1a65ea0
survey_baremetal: support /imm8
2021-03-14 19:25:39 -07:00
Kartik K. Agaram
499aad0bc7
survey: document starting address of each segment
2021-03-14 19:19:56 -07:00
Kartik K. Agaram
2c64c52e1f
fix some broken links
2021-03-14 13:30:01 -07:00
Kartik K. Agaram
9c4cd6db4a
some cleanup in a translation phase
2021-03-13 23:26:06 -08:00
Kartik K. Agaram
ffa80ee21b
.
2021-03-13 09:02:36 -08:00
Kartik Agaram
738f8ec1e6
.
2021-03-12 10:41:03 -08:00
Kartik Agaram
7ce83f9bff
some tweaks while updating mu-normie
2021-03-12 10:14:59 -08:00
Kartik K. Agaram
7e87c36c3a
.
2021-03-09 00:43:59 -08:00