From 19b7bec4a37b081ed326293148fd793f04896b59 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Sun, 19 Jul 2015 09:49:00 +0300 Subject: [PATCH] target-xtensa: implement S32NB S32NB provides the same functionality as S32I with two exceptions. First, when its operation leaves the processor, the external transaction is marked Non-Bufferable. Second, it may not be used to write to Instruction RAM. In QEMU S32NB is equivalent to S32I. Signed-off-by: Max Filippov --- target-xtensa/translate.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c index be5eb25627..aa0c527dc4 100644 --- a/target-xtensa/translate.c +++ b/target-xtensa/translate.c @@ -1965,6 +1965,17 @@ static void disas_xtensa_insn(CPUXtensaState *env, DisasContext *dc) } break; + case 5: /*S32N*/ + if (gen_window_check2(dc, RRI4_S, RRI4_T)) { + TCGv_i32 addr = tcg_temp_new_i32(); + + tcg_gen_addi_i32(addr, cpu_R[RRI4_S], RRI4_IMM4 << 2); + gen_load_store_alignment(dc, 2, addr, false); + tcg_gen_qemu_st32(cpu_R[RRI4_T], addr, dc->cring); + tcg_temp_free(addr); + } + break; + default: RESERVED(); break;