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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/expected/cosmosMore.out
+89
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CosmOS
> loaded, starting at 2000
> first line
second line
line 00: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 01: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 02: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 03: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 04: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 05: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 06: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 07: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 08: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 09: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 10: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 11: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 12: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 13: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 14: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 15: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 16: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 17: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 18: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 19: ABCDEFGHIJKLMNOPQRSTUVWXYZ
-- more --
finished
> first line
second line
line 00: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 01: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 02: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 03: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 04: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 05: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 06: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 07: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 08: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 09: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 10: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 11: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 12: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 13: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 14: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 15: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 16: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 17: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 18: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 19: ABCDEFGHIJKLMNOPQRSTUVWXYZ
-- more --
line 20: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 21: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 22: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 23: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 24: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 26: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 27: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 28: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 29: ABCDEFGHIJKLMNOPQRSTUVWXYZ
finished
> first line
second line
line 00: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 01: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 02: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 03: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 04: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 05: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 06: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 07: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 08: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 09: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 10: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 11: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 12: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 13: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 14: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 15: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 16: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 17: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 18: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 19: ABCDEFGHIJKLMNOPQRSTUVWXYZ
-- more --
line 20: ABCDEFGHIJKLMNOPQRSTUVWXYZ
-- more --
finished
> halted
Execution halted.
[exit 0]
Tests/expected/cosmosType.out
+43
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@@ -0,0 +1,43 @@
CosmOS
> loaded, starting at 2000
> first line
second line
line 00: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 01: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 02: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 03: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 04: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 05: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 06: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 07: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 08: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 09: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 10: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 11: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 12: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 13: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 14: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 15: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 16: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 17: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 18: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 19: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 20: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 21: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 22: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 23: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 24: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 26: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 27: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 28: ABCDEFGHIJKLMNOPQRSTUVWXYZ
line 29: ABCDEFGHIJKLMNOPQRSTUVWXYZ
finished
> finished
> type: cannot find the file, error 2
finished
> type: give me a file name
finished
> halted
Execution halted.
[exit 0]