C64-dev

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Daniel Covington 6e6c16aa23 vim: paint and edit in machine code, redraw only changed rows The single-row painter became vml.s at $C000: one sys() paints all 24 rows, memmove and line-index fix-ups run in ML, and the keyboard buffer is popped with IRQs masked. dall() repaints only the cursor row or the whole screen, so j went from 17 to 0-3 jiffies. Loading now checks the drive error channel and splits lines over 80 columns. The temporary jiffy counters used to measure the speedup are removed; the numbers are in NOTES.md. Generated with Codebuff 🤖 Co-Authored-By: Codebuff <noreply@codebuff.com>	1 vecka sedan
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run.png	vim: paint and edit in machine code, redraw only changed rows	1 vecka sedan
shell.png	Update vim editor: split into modules, add build scripts and notes	1 vecka sedan

Daniel Covington 6e6c16aa23 vim: paint and edit in machine code, redraw only changed rows

The single-row painter became vml.s at $C000: one sys() paints all 24
rows, memmove and line-index fix-ups run in ML, and the keyboard buffer
is popped with IRQs masked. dall() repaints only the cursor row or the
whole screen, so j went from 17 to 0-3 jiffies. Loading now checks the
drive error channel and splits lines over 80 columns. The temporary
jiffy counters used to measure the speedup are removed; the numbers are
in NOTES.md.

Generated with Codebuff 🤖
Co-Authored-By: Codebuff <noreply@codebuff.com>

1 vecka sedan

run.png

vim: paint and edit in machine code, redraw only changed rows

1 vecka sedan

shell.png

Update vim editor: split into modules, add build scripts and notes

1 vecka sedan