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riscv32: align stack pointer to 16-bytes #21

Merged
merged 1 commit into from
Dec 27, 2023
Merged

riscv32: align stack pointer to 16-bytes #21

merged 1 commit into from
Dec 27, 2023

Commits on Dec 27, 2023

  1. riscv32: align stack pointer to 16-bytes 

    Even though rv32 is only 32-bits, all RISC-V stacks must be aligned to a
16-byte boundary. For discussion on this, see:

riscv-non-isa/riscv-elf-psabi-doc#21

As an example of why this is important, the `c.addi16sp` compressed
instruction is only able to adjust the stack pointer by 16-byte
increments.

Signed-off-by: Sean Cross <[email protected]>
    @xobs
    xobs committed Dec 27, 2023
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