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Comments (6)

PatrickRudolph avatar PatrickRudolph commented on August 16, 2024

The corresponding C code is

long a = 0;
a = DIV_ROUND_CLOSEST(a, 1000);

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wfeldt avatar wfeldt commented on August 16, 2024

I cannot see this. Do you have a machine code snippet where this shows?

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PatrickRudolph avatar PatrickRudolph commented on August 16, 2024

Analysing the register showed that the C code above is wrong, it's actually:

-500 / 1000

The instruction is 0xf7fe which is idiv %esi
The register dump in the exception handler shows:

EAX fffffe0c
EBX 00000000
ECX 00000000
EDX ffffffff
EIP 07f854ea
ESI 000003e8
EDI 07fa2e00

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wfeldt avatar wfeldt commented on August 16, 2024

Oops, that's true. idiv and imul calculations have issues. I'll do a fix.

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wfeldt avatar wfeldt commented on August 16, 2024

see #27

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PatrickRudolph avatar PatrickRudolph commented on August 16, 2024

Tested, works great! Thanks!

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