AnachronautandClaude Opus 5
f9b08cf7f9
A gate is a register on the sound device and only a program can drop one. A program that has stopped cannot: it is gone. So a note left held sustained until something else said otherwise, and nothing else did - one program could leave the machine sounding for as long as it ran, with nothing the person at it could do. The shell already puts back the Stack, the vectors, the drive, the working directory and the screen. This is the same list and the same argument, and the fault path calls it too, for the stronger version of the argument: a program that CRASHED is exactly the one that cannot tidy up after itself, and a machine that will not stop humming is a poor place to read an error message. It does not make the device silent at once and does not pretend to. Dropping a gate RELEASES a note rather than stopping it, so the patch's release still runs. A bounded tail rather than an endless one is the part the system can be responsible for without knowing what instrument the program had built. Hum exits while holding a note; Pause makes no sound and takes a couple of million cycles, because the machine stops the moment the shell runs out of input and a note quietened at that instant leaves no samples behind to say whether it was. They are on a disk of their own so that a fixture does not move the ten recordings that quote cosmos.img's listing. THE CHECK CAUGHT ITSELF PASSING WRONGLY FIRST. Pause was missing from the disk, the machine halted immediately, and the window that should have held the tail was past the end of a render a twentieth of a second long - an empty window's peak is nought, which is indistinguishable from silence. So the sample count is asserted before anything is read from it. Verified with break.sh: without the call the note is still ringing at 9869. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01E2JrLzFvuFX9fgi1LDRjrW
48 lines
916 B
NASM
48 lines
916 B
NASM
; A program that takes a while and makes no sound.
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;
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; Fixture. Something has to happen after a program that left a note sounding has stopped, or
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; there is nothing for the sound device to be measured DURING: the machine halts the moment
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; the shell runs out of input, and a note quietened at that instant leaves no samples behind
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; to say whether it was quietened at all.
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;
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; So this burns about two million cycles and exits. Two nested counts and a third around
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; them, because a byte only reaches 256 and a fifth of a second is a great deal more than
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; that.
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;
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; Written by Anachronaut
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#Include services.asm
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#Program
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#Base 0x5000
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start:
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INIA 0d16
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outer:
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PSHA ; The outer count, which the inner ones need A for.
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RSTB
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middle:
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RSTA
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inner:
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DECA
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BNA inner
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DECB
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BNB middle
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POPA
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DECA
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BNA outer
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SWI osExit
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#Data
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#Base 0x3000
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Unused:
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0x00
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#Vectors
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Boot start
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