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From: | Richard Henderson |
Subject: | Re: [PATCH v2] target/m68k: implement rtr instruction |
Date: | Sun, 7 Mar 2021 10:45:12 -0800 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 |
On 3/7/21 10:22 AM, Laurent Vivier wrote:
+ ccr = gen_load(s, OS_WORD, QREG_SP, 0, IS_USER(s)); + gen_set_sr(s, ccr, true); + tcg_temp_free(ccr); + tcg_gen_addi_i32(QREG_SP, QREG_SP, 2); + tmp = gen_load(s, OS_LONG, QREG_SP, 0, IS_USER(s)); + tcg_gen_addi_i32(QREG_SP, QREG_SP, 4); + gen_jmp(s, tmp);
Both loads should happen (and thus exceptions recognized) before any other state writeback.
r~
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