25 lines
912 B
C
25 lines
912 B
C
// helloBeep.c - simplest possible GS/OS app. Three SysBeep calls then
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// exit. Verifies the OMF + Loader path: if the IIgs makes three beeps,
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// the app launched, ran, and returned cleanly.
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//
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// No toolbox startup is needed - the Loader has already done TLStartUp
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// + MMStartUp for us, and SysBeep is a Misc Tools call that works
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// without additional setup.
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//
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// Build with: bash demos/build.sh helloBeep
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// Run with: bash scripts/runViaFinder.sh helloBeep.omf --check 0x70=0x42
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#include "iigs/toolbox.h"
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int main(void) {
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SysBeep();
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SysBeep();
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SysBeep();
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*(volatile unsigned char *)0x70 = 0x99; // for headless verify
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// Brief linger so snapshot tools can capture the post-Finder state
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// before we exit (otherwise the screen snaps in the middle of GS/OS
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// tearing the launcher state down).
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for (volatile unsigned long s = 0; s < 600000UL; s++) { }
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return 0;
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}
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