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* .Kartik Agaram2021-01-141-0/+1
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* 7519 - baremetal: run all tests on bootKartik Agaram2021-01-136-3/+87
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* 7518Kartik Agaram2021-01-1310-0/+19
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* 7517Kartik Agaram2021-01-131-1/+6
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* 7516Kartik Agaram2021-01-132-20/+11
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* 7514Kartik Agaram2021-01-131-0/+0
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* 7513Kartik Agaram2021-01-131-30/+28
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* 7510 - baremetal: a game of snakeKartik Agaram2021-01-132-0/+107
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* 7508Kartik Agaram2021-01-134-24/+47
| | | | | | This is the right way to be direction-independent. Don't save the cursor when drawing a single grapheme. Where the next char goes is just a property of the direction-oriented primitives.
* 7507 - baremetal: drawing text down then rightKartik Agaram2021-01-124-1/+204
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* 7505Kartik Agaram2021-01-121-9/+9
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* 7504Kartik Agaram2021-01-121-6/+17
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* 7503 - baremetal: noodling on default VGA paletteKartik Agaram2021-01-123-0/+451
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* 7502 - baremetal text: better interfaceKartik Agaram2021-01-122-9/+13
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* 7501 - baremetal: draw text within a rectangleKartik Agaram2021-01-123-0/+96
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* 7500 - baremetal: bounds-check screen space before drawingKartik Agaram2021-01-124-6/+106
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* 7499Kartik Agaram2021-01-121-0/+0
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* 7497Kartik Agaram2021-01-112-87/+82
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* 7496Kartik Agaram2021-01-111-0/+4
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* 7493Kartik Agaram2021-01-091-0/+0
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* 7492Kartik Agaram2021-01-0910-11/+729
| | | | Port some support for unicode to baremetal.
* 7491 - baremetal: draw ASCII text to screenKartik Agaram2021-01-093-0/+41
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* 7490 - baremetal: draw a grapheme to screenKartik Agaram2021-01-093-0/+86
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* 7489 - include GNU UnifontKartik Agaram2021-01-095-9/+252
| | | | | | | https://en.wikipedia.org/wiki/GNU_Unifont#The_.hex_font_format http://unifoundry.com/unifont/index.html Since GNU Unifont is covered under the GPL v2, so I believe is this repo.
* 7488Kartik Agaram2021-01-092-5/+3
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* 7487Kartik Agaram2021-01-091-21/+18
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* 7486 - primitive for reading keysKartik Agaram2021-01-093-0/+74
| | | | | It also clears keys after reading them, allowing us to read more than 16 keys.
* 7485Kartik Agaram2021-01-092-11/+13
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* 7484Kartik Agaram2021-01-091-0/+1
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* 7480 - baremetal/ex3.hex now draws multiple pixelsKartik Agaram2021-01-072-7/+15
| | | | | | | | | | I was wrong in commit 7437 that only one keystroke was working. The problem was just that I was getting _too_ many events. I wasn't handling key-up events, and they were entering the buffer, and I was not skipping null events since the circular buffer is currently considered to be null-terminated. ex3 isn't done yet; it can only handle 16 events. Apps need to be clearing the keyboard buffer.
* 7479Kartik Agaram2021-01-071-3/+3
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* 7477Kartik Agaram2020-12-301-2/+2
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* 7471Kartik Agaram2020-12-291-2/+2
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* 7470Kartik Agaram2020-12-291-7/+7
| | | | | | | The ol' 8-byte-register-names issue strikes again. There's no way to access the lower 8 bits of ESI. There's still a bug in baremetal/ex2.mu; it's printing transposed somehow.
* 7469 - first working baremetal Mu programKartik Agaram2020-12-294-0/+95
| | | | | It doesn't _quite_ do what it should, so this is more precisely the first _buggy_ baremetal Mu program. But the tooling works, at least.
* 7467Kartik Agaram2020-12-292-1/+7
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* 7466Kartik Agaram2020-12-292-2/+2
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* 7462 - SubX version of baremetal/ex2.subxKartik Agaram2020-12-291-0/+35
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* 7461Kartik Agaram2020-12-296-13/+8
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* 7460 - baremetal backend for SubXKartik Agaram2020-12-291-0/+23
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* 7437 - baremetal: draw pixel on keyboard eventKartik Agaram2020-12-282-7/+68
| | | | | It's now clear that our keyboard handler doesn't trigger after the first event.
* 7436Kartik Agaram2020-12-272-22/+22
| | | | Start highlighting lines that may need to be recomputed when offsets change.
* 7435 - baremetal: buffer for keyboard eventsKartik Agaram2020-12-271-20/+49
| | | | | | | | | I'm trying to read the status register, but I'm still not seeing the breakpoint being hit a second time. (And I again ran into the Bochs bug that breakpoints at the first instruction of an interrupt handler don't work.) Maybe this is just a debugger issue. Let's keep going, and try to start using the keyboard events.
* 7434Kartik Agaram2020-12-271-1/+1
| | | | Fix a stale displacement.
* 7433 - some major layout changesKartik Agaram2020-12-272-55/+51
| | | | | | I'd missed that VBE call 0x4f01 (get video mode) can write up to 256 bytes. Unexpected areas were getting clobbered because I wasn't reserving enough space.
* 7432Kartik Agaram2020-12-271-5/+5
| | | | | Bugfix: 32-bit code in 16-bit mode. Seems like it was benign, maybe.
* 7431Kartik Agaram2020-12-271-1/+1
| | | | Typo.
* 7430Kartik Agaram2020-12-271-1/+1
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* 7428Kartik Agaram2020-12-278-555/+0
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* 7427Kartik Agaram2020-12-272-2/+2
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