Re: [PATCH] disas/riscv: Further correction to LUI disassembly

[Richard Henderson]

On 7/31/23 11:33, Richard Bagley wrote:
> The recent commit 36df75a0a9 corrected one aspect of LUI disassembly
> by recovering the immediate argument from the result of LUI with a
> shift right by 12. However, the shift right will left-fill with the
> sign. By applying a mask we recover an unsigned representation of the
> 20-bit field (which includes a sign bit).

Why would you want that?  Surely

    lui r1, -1

is more accurate than

    lui r1, 0xfffff


r~