target-xtensa: mask out undefined bits of WINDOWSTART SR
According to ISA, table 5-156, bits 32:NAREG/4 of the WINDOWSTART SR must be zero. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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@ -466,7 +466,7 @@ static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v)
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static void gen_wsr_windowstart(DisasContext *dc, uint32_t sr, TCGv_i32 v)
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static void gen_wsr_windowstart(DisasContext *dc, uint32_t sr, TCGv_i32 v)
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{
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{
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tcg_gen_mov_i32(cpu_SR[sr], v);
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tcg_gen_andi_i32(cpu_SR[sr], v, (1 << dc->config->nareg / 4) - 1);
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reset_used_window(dc);
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reset_used_window(dc);
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}
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}
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