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banshee: Handle divide by zero for integer instructions #10

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huettern opened this issue Jan 5, 2022 · 1 comment
Open

banshee: Handle divide by zero for integer instructions #10

huettern opened this issue Jan 5, 2022 · 1 comment
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@huettern
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huettern commented Jan 5, 2022

Currently a divu with a zero divisor causes a floating point exception and banshee crashes.

According to the RISC-V ISA manual a division by zero is clearly defined and should not result in an exception.

The value of all bits set is returned for both unsigned and signed divide by zero to simplify the divider circuitry.

This can easily be implemented in banshee
@huettern huettern added the bug Something isn't working label Jan 5, 2022
@paulsc96 paulsc96 transferred this issue from pulp-platform/snitch Nov 22, 2023
@howjmay
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howjmay commented Feb 23, 2024 •
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Is this problem still exist?

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@huettern @howjmay