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* 7420Kartik Agaram2020-12-261-1/+2
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* 7419Kartik Agaram2020-12-261-0/+1
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* 7418 - baremetal: adjust entrypoint addressKartik Agaram2020-12-264-8/+151
| | | | | | | | | | | We need a few pages of data for the keyboard mappings. If I moved them to some later address I'd be able to keep the nice round starting address unchanged. But that seems like a superficial aesthetic concern. There's really no value in having an array of hex bytes represented in SubX rather than just raw hex. And it's better to colocate data near the handler code which uses it (and which runs instructions SubX doesn't support).
* 7417 - baremetal: drawing on LFB in BochsKartik Agaram2020-12-262-2/+3
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* 7416 - baremetal: drawing on frame bufferKartik Agaram2020-12-261-6/+17
| | | | | This currently works on Qemu, but not on Bochs. I'm now trying to make sense of https://wiki.osdev.org/Bochs_VBE_Extensions#Using_a_linear_frame_buffer_.28LFB.29
* 7415 - baremetal: locate the linear frame bufferKartik Agaram2020-12-261-6/+55
| | | | | 0xa0000 only contains a single bank's worth of memory-mapped video RAM. The LFB is supposed to have everything.
* 7414Kartik Agaram2020-12-261-14/+14
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* 7413Kartik Agaram2020-12-261-4/+4
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* 7412 - drawing pixels to screenKartik Agaram2020-12-264-3/+32
| | | | | This works, but colors are unexpected. 0xff isn't white. Lots of colors are black. Perhaps I need to initialize a palette.
* 7411Kartik Agaram2020-12-261-1/+1
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* 7410Kartik Agaram2020-12-261-1/+1
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* 7409Kartik Agaram2020-12-261-1/+1
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* 7408Kartik Agaram2020-12-261-2/+2
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* 7407Kartik Agaram2020-12-261-1/+4
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* 7406Kartik Agaram2020-12-261-0/+2
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* generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-11-30 13:31:31 +0000 td class='commitgraph'>* 7375Kartik Agaram2020-12-231-9/+20
| | | | A little more robustness after reading https://stackoverflow.com/questions/43786251/int-13h-42h-doesnt-load-anything-in-bochs/43787939#43787939
* 7374Kartik Agaram2020-12-211-3/+16
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* 7373Kartik Agaram2020-12-211-1/+1
| | | | | apps/boot.hex doesn't need much by way of syntax highlighting. Have it work even for people who haven't installed subx.vim
* 7372 - successful read from disk using BIOSKartik Agaram2020-12-211-13/+48
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* 7371Kartik Agaram2020-12-211-1/+1
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generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-11-30 13:31:30 +0000