Hi, Richard
在 2022/12/25 上午5:12, Richard Henderson 写道:
On 12/24/22 00:16, Song Gao wrote:
+TRANS(vreplve_b, gen_vvr, gen_helper_vreplve_b)
+TRANS(vreplve_h, gen_vvr, gen_helper_vreplve_h)
+TRANS(vreplve_w, gen_vvr, gen_helper_vreplve_w)
+TRANS(vreplve_d, gen_vvr, gen_helper_vreplve_d)
+TRANS(vreplvei_b, gen_vv_i, gen_helper_vreplvei_b)
+TRANS(vreplvei_h, gen_vv_i, gen_helper_vreplvei_h)
+TRANS(vreplvei_w, gen_vv_i, gen_helper_vreplvei_w)
+TRANS(vreplvei_d, gen_vv_i, gen_helper_vreplvei_d)
tcg_gen_gvec_dupm.
In the case of imm, this will be cpu_env + offsetof.
e.g vreplvei_b vd, vj, imm
vd->B(i) = Vj->B(imm);
tcg_gen_gvec_dup_mem(MO_8, vreg_full_offset(a->vd),
offsetof(CPULoongArchState, fpr[a->vj].vreg.B(a->imm)),
16, 16);
this case no problem.
In the case of reg, compute cpu_env + register offset + offsetof.
but for this case.
e.g
vreplve_b vd vj, rk
index = gpr[rk] % (128/8);
Vd->B(i) = Vj->B(index);
tcg_gen_gvec_dup_mem(MO_8, vreg_full_offset(a->vd),
offsetof(CPULoongArchState, fpr[a->vj].vreg.B(index))), 16, 16 );
How can we get the index with cpu_env? or need env->gpr[rk]?
The index type is not TCGv.
I have no idea.
Thanks.
Song Gao
+TRANS(vbsll_v, gen_vv_i, gen_helper_vbsll_v)
+TRANS(vbsrl_v, gen_vv_i, gen_helper_vbsrl_v)
These can use tcg_gen_extract2_i64, with imm * 8 bit shift.
r~
