On 12/28/2013 01:49 PM, Peter Maydell wrote:
> if (size < 4) {
> switch (size) {
> case 0:
> - tcg_gen_ld8u_i64(tmp, cpu_env, freg_offs);
> + tcg_gen_ld8u_i64(tmp, cpu_env, fp_reg_offset(srcidx, MO_8));
> break;
> case 1:
> - tcg_gen_ld16u_i64(tmp, cpu_env, freg_offs);
> + tcg_gen_ld16u_i64(tmp, cpu_env, fp_reg_offset(srcidx, MO_16));
> break;
> case 2:
> - tcg_gen_ld32u_i64(tmp, cpu_env, freg_offs);
> + tcg_gen_ld32u_i64(tmp, cpu_env, fp_reg_offset(srcidx, MO_32));
> break;
> case 3:
> - tcg_gen_ld_i64(tmp, cpu_env, freg_offs);
> + tcg_gen_ld_i64(tmp, cpu_env, fp_reg_offset(srcidx, MO_64));
> break;
> }
> tcg_gen_qemu_st_i64(tmp, tcg_addr, get_mem_index(s), MO_TE + size);
It occurs to me to wonder whether it wouldn't just be better to load the whole
64-bit quantity and store the piece we need, ignoring the entire host-endian issue.
I agree with the fp_reg_hi_offset helper, I just wonder if we ought not just
have a one-argument fp_reg_lo_offset helper instead of the sized one you introduce.
r~
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