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From: | Richard Henderson |
Subject: | Re: [Qemu-devel] [PATCH 03/26] target/s390x: implement TEST AND SET |
Date: | Fri, 26 May 2017 06:42:08 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0 |
On 05/25/2017 02:04 PM, Aurelien Jarno wrote:
+ TCGv_i32 t1 = tcg_const_i32(0xff); + tcg_gen_atomic_fetch_or_i32(t1, o->in2, t1, get_mem_index(s), MO_UB);
Better as tcg_gen_atomic_xchg_i32. r~
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