On 2022/11/14 05:40, Richard Henderson wrote:
On 11/13/22 12:32, Weiwei Li wrote:
+        } else if ((get_xl_max(ctx) == MXL_RV32) &&
+            !ctx->cfg_ptr->ext_zcf &&
+            (((opcode & 0xe003) == 0x6000) ||
+             ((opcode & 0xe003) == 0x6002) ||
+             ((opcode & 0xe003) == 0xe000) ||
+             ((opcode & 0xe003) == 0xe002))) {
              gen_exception_illegal(ctx);

Why aren't you using the same c_flw solution that you do for Zcd?
Yeah, it's OK for zcf intructions to use the c_flw solution.

I tried to remain the original logic for Zcf and Zcd instructions, However, this way is not suitable for Zcd instructions

since zcmp/zcmt instructions will overlap their encodings(but not the same).  So I changed the way of Zcd instructions.

Regards,

Weiwei Li



r~


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