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a0 vs a7 for system calls #37
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Yes absolutely, in the beginning of the project I thought that register |
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Jupiter uses
a0
for the system call number. Most other simulators/kernels usea7
for the system call number. Notably, spike with pk, rv8, qemu for userspace, RARS, and RIPES all usea7
. Venus would be the notable simulator that usesa0
.Would you be interested in changing to use a7 instead of a0? I would be willing to make a PR, but wanted to get a "go ahead"
before I start.
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