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Return clock() with the high word in DX - #722
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clock() returns a 32-bit clock_t in DX:AX, with DX holding the high word. The two words were swapped, so the module saw a value that wrapped around every 65.5 seconds and changed sign every 32.8, breaking any elapsed-time arithmetic done with it. Adds clock_Test.
enusbaum
approved these changes
Oct 19, 2026
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clock() returns a 32-bit clock_t in DX:AX, with DX holding the high word. The two words were swapped, so the module saw a value that wrapped around every 65.5 seconds and changed sign every 32.8, breaking any elapsed-time arithmetic done with it.