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| From: | Tom Musta |
| Subject: | Re: [Qemu-devel] [v2 07/13] Add VSX Scalar Move Instructions |
| Date: | Tue, 22 Oct 2013 07:57:14 -0500 |
| User-agent: | Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.0.1 |
On 10/22/2013 1:31 AM, Paolo Bonzini wrote:
Il 11/10/2013 14:02, Tom Musta ha scritto:+ case OP_CPSGN: { \ + TCGv_i64 xa = tcg_temp_new(); \ + tcg_gen_mov_i64(xa, cpu_vsrh(xA(ctx->opcode))); \ + tcg_gen_andi_i64(xa, xa, (sgn_mask)); \ + tcg_gen_andi_i64(xb, xb, ~(sgn_mask)); \ + tcg_gen_or_i64(xb, xb, xa); \ + tcg_temp_free(xa); \ + break; \You might get slightly better generated code if you move the sgn_mask immediate to a temporary and then use and+andc. Paolo
Thank you for the suggestion, Paolo. I will recode, retest and resubmit this one and patch 8.
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