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Add Type and More, and the file stream they are built on

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Two applications that read a file too big for Data Memory: Type prints one,
More pages it. Both sit on fileStream.asm, which wraps osFileInfo and
osFileBlock into open-and-next so an application walks a file's blocks without
repeating the service calls.

The disk fixture is deliberately awkward: readable.txt crosses several blocks
and carries no zero byte to be mistaken for an end marker, and empty.txt says
that zero blocks is a valid file rather than an error.

These three files were written by ChatGPT, as their headers record.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E2JrLzFvuFX9fgi1LDRjrW
This commit is contained in:
Anachronaut
2026-08-24 17:15:53 -04:00
co-authored by Claude Opus 5
parent 4fd8bf7b3f
commit dbe58db660
10 changed files with 544 additions and 0 deletions
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Tests/makedisks.sh
+16
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@@ -161,6 +161,22 @@ awk 'BEGIN { for (i = 0; i < 50; i++) printf "small %05d\n", i }' > small.txt
"$ROOT/Programs/CosmOS/Apps/Stream.asm" -o "$WORK/Stream.sbx" >/dev/null
"$TOOL" put "$DISKS/stream.img" "$WORK/Stream.sbx" >/dev/null
# A disk for Type. The first file crosses several blocks and deliberately has no zero byte
# for the application to mistake for an end marker. The second proves that zero blocks is
# a valid empty file rather than an error.
"$TOOL" format "$DISKS/type.img" 64 2 >/dev/null
printf 'first line\nsecond line\n' > readable.txt
awk 'BEGIN { for (i = 0; i < 30; i++) printf "line %02d: ABCDEFGHIJKLMNOPQRSTUVWXYZ\n", i }' >> readable.txt
: > empty.txt
"$TOOL" put "$DISKS/type.img" readable.txt >/dev/null
"$TOOL" put "$DISKS/type.img" empty.txt >/dev/null
"$ROOT/Assembler" -I "$ROOT/Programs/CosmOS/Source" \
"$ROOT/Programs/CosmOS/Apps/Type.asm" -o "$WORK/Type.sbx" >/dev/null
"$TOOL" put "$DISKS/type.img" "$WORK/Type.sbx" >/dev/null
"$ROOT/Assembler" -I "$ROOT/Programs/CosmOS/Source" \
"$ROOT/Programs/CosmOS/Apps/More.asm" -o "$WORK/More.sbx" >/dev/null
"$TOOL" put "$DISKS/type.img" "$WORK/More.sbx" >/dev/null
# A disk for the assembler that runs on the machine. It holds a source file and the two
# programs that check the front end - the reader on its own and the tokenizer on its own -
# because a fault in either of those would otherwise turn up much later as a mysterious