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target/nios2: in line the semantics of DISAS_UPDATE with other targets
In line the semantics of DISAS_UPDATE on nios2 target with other targets which is to explicitly write the PC back into the cpu state before doing a tcg_gen_exit_tb(). Signed-off-by: Wentong Wu <wentong.wu@intel.com> Message-id: 20200710233433.19729-2-wentong.wu@intel.com Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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@ -865,6 +865,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns)
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/* Indicate where the next block should start */
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switch (dc->is_jmp) {
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case DISAS_NEXT:
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case DISAS_UPDATE:
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/* Save the current PC back into the CPU register */
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tcg_gen_movi_tl(cpu_R[R_PC], dc->pc);
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tcg_gen_exit_tb(NULL, 0);
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@ -872,7 +873,6 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns)
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default:
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case DISAS_JUMP:
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case DISAS_UPDATE:
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/* The jump will already have updated the PC register */
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tcg_gen_exit_tb(NULL, 0);
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break;
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