On 09/29/2011 08:23 AM, Jan Kiszka wrote:
> +#ifndef TCG_TARGET_deposit_i32_valid
> +#define TCG_TARGET_deposit_i32_valid(ofs, len) 0
> +#endif
> +#ifndef TCG_TARGET_deposit_i64_valid
> +#define TCG_TARGET_deposit_i64_valid(ofs, len) 0
> +#endif
Err, no. The default is true. The targets that cur
x86 cannot provide an optimized generic deposit implementation. But at
least for a few special cases, namely for writing bits 0..7, 8..15, and
0..15, versions using only a single instruction are feasible.
Introducing such limited support improves emulating 16-bit x86 code on
x86, but also rarer cas
