Snapshot 23w15a

• Add description of filesystem API to README

• Remove the + word from kernel, saving 6 bytes

• Don't expose the BASE variable, saving 4 bytes

• Remove DROP from kernel, defining it as : drop dup - - ; (saves 7 bytes)

• Combine [ and ], saving 5 bytes

• Make compress.py print the number of bytes saved by compression

• Save 1 byte

• Simplify how we force yasm to emit push 0x89 in two bytes

• Save 1 byte

• Move EMIT out of the kernel, saving 12 bytes

• Move >IN to 7d00, saving 5 bytes.

• Don't use the uefix chainloader in the default build configuration.

Miniforth is now small enough to fit a partition table itself.

Snapshot 23w11b

• asm32 (internal): check that mod-r/m-size was called before emitting a ModR/M byte

• asm32: emit 32-bit NEXT in 32-bit mode

• asm32: Implement shift instructions

• Document the internals of does>

• go32: Fix the alter-0 check

How did this work before??? Why was a small stack underflow the only
symptom?

• Show input position on exception

• asm32: Implement movzx

• fed: Make downwards scrolling faster

Going to the end of the file (or a search result) used to do it one line
at a time, rendering each step. This became an annoyingly slow animation
the 100th time you saw it on a long file.

• fed: Implement C and D (change/delete to end of line)

• go32: Coming back to 16-bit mode.

Snapshot 23w11a

• require: include a file if a word isn't defined

• Initialize alters automatically on 50 load

• Initial forays into protected mode :3

Snapshot 23w10f

• fed: Fix pasting at the end of the file

• fed: Make cc at the last line work properly

• fed: Don't crash after ggdG

Snapshot 23w10e

• CI: generate changelogs in chronological order

Reverse-chronological is confusing sometimes >.<

Snapshot 23w10d

• asm32: Add tests for out

• Make disk I/O work in alters other than 0

• Reformat the code in the initial blocks

• asm32: assembler with more typical syntax and 16/32-bit as target

• alters: a way around the 64K limit

• Include filesystem contents in repo and disk images

This includes a more full-featured version of the file editor in
fed.fth, a fsck in fsck.fth, a unit test library in test.fth, a file
copying utility in fsext.fth, and a minimal x86 encoding reference in
x86.txt.

• Move intermediate files to build/

• Clean up repo organization

• Save 5 bytes

Snapshot 23w10c

• Save 1 byte

• Don't preserve return stack pointer between interpreted words

This isn't done by the expanded interpreter either, and not doing
it lets me save 4 bytes.

• Save 1 byte

Snapshot 23w10b

• mkdisk.py: print block numbers in hex

• Perform 1 load automatically when built with -DAUTOLOAD

This is not done by default, as I like to keep a known-good version
of the code at blocks 101 and upwards, as a fallback if break the main
copy. This might be desirable for other usecases, though.

Closes #7

• Don't load install-to by default (moved to block 5f)

Snapshot 23w10a

• Generate fuller changelogs for snapshots

• Add bootstrap version of file editor

• Fix stack comment of fopen?

• Don't overlap ptable buffer with freebits

• Don't load grep by default (moved to block 2f)

• exceptions: conserve memory

• #lines is ambiguous. rename to blk-{width,height}

• Handle multiple string literals in interpreter mode

• Remove obsolete and crude text entry stuff

Loading them into memory at this point is wasteful.

• Use DAA trick for digit conversion (saves 2 bytes)

• run.sh: handle option drift

• build.sh: bail out on first error

Snapshot 22w38a

Simple filesystem