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https://github.com/yuzu-emu/unicorn.git
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target-sparc: Implement swap_asi inline
Backports commit 4fb554bc6c88eb45270a3ad3cf6e6e2ad476aede from qemu
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ebc292c174
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@ -2145,6 +2145,19 @@ static inline void gen_ne_fop_QD(DisasContext *dc, int rd, int rs,
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gen_update_fprs_dirty(dc, QFPREG(rd));
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}
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static void gen_swap(DisasContext *dc, TCGv dst, TCGv src,
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TCGv addr, int mmu_idx, TCGMemOp memop)
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{
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/* ??? Should be atomic. */
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TCGContext *tcg_ctx = dc->uc->tcg_ctx;
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TCGv t0 = tcg_temp_new(tcg_ctx);
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gen_address_mask(dc, addr);
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tcg_gen_qemu_ld_tl(dc->uc, t0, addr, mmu_idx, memop);
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tcg_gen_qemu_st_tl(dc->uc, src, addr, mmu_idx, memop);
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tcg_gen_mov_tl(tcg_ctx, dst, t0);
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tcg_temp_free(tcg_ctx, t0);
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}
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/* asi moves */
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#if !defined(CONFIG_USER_ONLY) || defined(TARGET_SPARC64)
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typedef enum {
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@ -2448,32 +2461,17 @@ static void gen_st_asi(DisasContext *dc, TCGv src, TCGv addr,
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static void gen_swap_asi(DisasContext *dc, TCGv dst, TCGv src,
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TCGv addr, int insn)
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{
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TCGContext *tcg_ctx = dc->uc->tcg_ctx;
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DisasASI da = get_asi(dc, insn, MO_TEUL);
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switch (da.type) {
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case GET_ASI_EXCP:
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break;
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case GET_ASI_DIRECT:
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gen_swap(dc, dst, src, addr, da.mem_idx, da.memop);
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break;
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default:
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{
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TCGv_i32 r_asi = tcg_const_i32(tcg_ctx, da.asi);
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TCGv_i32 r_mop = tcg_const_i32(tcg_ctx, MO_UL);
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TCGv_i64 s64, t64;
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save_state(dc);
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t64 = tcg_temp_new_i64(tcg_ctx);
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gen_helper_ld_asi(tcg_ctx, t64, tcg_ctx->cpu_env, addr, r_asi, r_mop);
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s64 = tcg_temp_new_i64(tcg_ctx);
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tcg_gen_extu_tl_i64(tcg_ctx, s64, src);
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gen_helper_st_asi(tcg_ctx, tcg_ctx->cpu_env, addr, s64, r_asi, r_mop);
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tcg_temp_free_i64(tcg_ctx, s64);
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tcg_temp_free_i32(tcg_ctx, r_mop);
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tcg_temp_free_i32(tcg_ctx, r_asi);
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tcg_gen_trunc_i64_tl(tcg_ctx, dst, t64);
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tcg_temp_free_i64(tcg_ctx, t64);
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}
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/* ??? Should be DAE_invalid_asi. */
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gen_exception(dc, TT_DATA_ACCESS);
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break;
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}
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}
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@ -5386,15 +5384,10 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn, bool hook_ins
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break;
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case 0x0f:
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/* swap, swap register with memory. Also atomically */
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{
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TCGv t0 = get_temp_tl(dc);
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CHECK_IU_FEATURE(dc, SWAP);
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cpu_src1 = gen_load_gpr(dc, rd);
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gen_address_mask(dc, cpu_addr);
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tcg_gen_qemu_ld32u(dc->uc, t0, cpu_addr, dc->mem_idx);
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tcg_gen_qemu_st32(dc->uc, cpu_src1, cpu_addr, dc->mem_idx);
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tcg_gen_mov_tl(tcg_ctx, cpu_val, t0);
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}
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CHECK_IU_FEATURE(dc, SWAP);
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cpu_src1 = gen_load_gpr(dc, rd);
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gen_swap(dc, cpu_val, cpu_src1, cpu_addr,
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dc->mem_idx, MO_TEUL);
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break;
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#if !defined(CONFIG_USER_ONLY) || defined(TARGET_SPARC64)
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case 0x10: /* lda, V9 lduwa, load word alternate */
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