diff options
Diffstat (limited to 'target/riscv/insn_trans/trans_rvi.c.inc')
| -rw-r--r-- | target/riscv/insn_trans/trans_rvi.c.inc | 46 |
1 files changed, 31 insertions, 15 deletions
diff --git a/target/riscv/insn_trans/trans_rvi.c.inc b/target/riscv/insn_trans/trans_rvi.c.inc index 2031e9931e..297142208e 100644 --- a/target/riscv/insn_trans/trans_rvi.c.inc +++ b/target/riscv/insn_trans/trans_rvi.c.inc @@ -38,7 +38,9 @@ static bool trans_lui(DisasContext *ctx, arg_lui *a) static bool trans_auipc(DisasContext *ctx, arg_auipc *a) { - gen_set_gpri(ctx, a->rd, a->imm + ctx->base.pc_next); + TCGv target_pc = dest_gpr(ctx, a->rd); + gen_pc_plus_diff(target_pc, ctx, a->imm); + gen_set_gpr(ctx, a->rd, target_pc); return true; } @@ -51,25 +53,33 @@ static bool trans_jal(DisasContext *ctx, arg_jal *a) static bool trans_jalr(DisasContext *ctx, arg_jalr *a) { TCGLabel *misaligned = NULL; + TCGv target_pc = tcg_temp_new(); + TCGv succ_pc = dest_gpr(ctx, a->rd); - tcg_gen_addi_tl(cpu_pc, get_gpr(ctx, a->rs1, EXT_NONE), a->imm); - tcg_gen_andi_tl(cpu_pc, cpu_pc, (target_ulong)-2); + tcg_gen_addi_tl(target_pc, get_gpr(ctx, a->rs1, EXT_NONE), a->imm); + tcg_gen_andi_tl(target_pc, target_pc, (target_ulong)-2); - gen_set_pc(ctx, cpu_pc); - if (!ctx->cfg_ptr->ext_zca) { + if (get_xl(ctx) == MXL_RV32) { + tcg_gen_ext32s_tl(target_pc, target_pc); + } + + if (!has_ext(ctx, RVC) && !ctx->cfg_ptr->ext_zca) { TCGv t0 = tcg_temp_new(); misaligned = gen_new_label(); - tcg_gen_andi_tl(t0, cpu_pc, 0x2); + tcg_gen_andi_tl(t0, target_pc, 0x2); tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0x0, misaligned); } - gen_set_gpri(ctx, a->rd, ctx->pc_succ_insn); + gen_pc_plus_diff(succ_pc, ctx, ctx->cur_insn_len); + gen_set_gpr(ctx, a->rd, succ_pc); + + tcg_gen_mov_tl(cpu_pc, target_pc); lookup_and_goto_ptr(ctx); if (misaligned) { gen_set_label(misaligned); - gen_exception_inst_addr_mis(ctx); + gen_exception_inst_addr_mis(ctx, target_pc); } ctx->base.is_jmp = DISAS_NORETURN; @@ -153,6 +163,7 @@ static bool gen_branch(DisasContext *ctx, arg_b *a, TCGCond cond) TCGLabel *l = gen_new_label(); TCGv src1 = get_gpr(ctx, a->rs1, EXT_SIGN); TCGv src2 = get_gpr(ctx, a->rs2, EXT_SIGN); + target_ulong orig_pc_save = ctx->pc_save; if (get_xl(ctx) == MXL_RV128) { TCGv src1h = get_gprh(ctx, a->rs1); @@ -165,16 +176,21 @@ static bool gen_branch(DisasContext *ctx, arg_b *a, TCGCond cond) } else { tcg_gen_brcond_tl(cond, src1, src2, l); } - gen_goto_tb(ctx, 1, ctx->pc_succ_insn); + gen_goto_tb(ctx, 1, ctx->cur_insn_len); + ctx->pc_save = orig_pc_save; gen_set_label(l); /* branch taken */ - if (!ctx->cfg_ptr->ext_zca && ((ctx->base.pc_next + a->imm) & 0x3)) { + if (!has_ext(ctx, RVC) && !ctx->cfg_ptr->ext_zca && + (a->imm & 0x3)) { /* misaligned */ - gen_exception_inst_addr_mis(ctx); + TCGv target_pc = tcg_temp_new(); + gen_pc_plus_diff(target_pc, ctx, a->imm); + gen_exception_inst_addr_mis(ctx, target_pc); } else { - gen_goto_tb(ctx, 0, ctx->base.pc_next + a->imm); + gen_goto_tb(ctx, 0, a->imm); } + ctx->pc_save = -1; ctx->base.is_jmp = DISAS_NORETURN; return true; @@ -767,7 +783,7 @@ static bool trans_pause(DisasContext *ctx, arg_pause *a) * PAUSE is a no-op in QEMU, * end the TB and return to main loop */ - gen_set_pc_imm(ctx, ctx->pc_succ_insn); + gen_update_pc(ctx, ctx->cur_insn_len); exit_tb(ctx); ctx->base.is_jmp = DISAS_NORETURN; @@ -791,7 +807,7 @@ static bool trans_fence_i(DisasContext *ctx, arg_fence_i *a) * FENCE_I is a no-op in QEMU, * however we need to end the translation block */ - gen_set_pc_imm(ctx, ctx->pc_succ_insn); + gen_update_pc(ctx, ctx->cur_insn_len); exit_tb(ctx); ctx->base.is_jmp = DISAS_NORETURN; return true; @@ -802,7 +818,7 @@ static bool do_csr_post(DisasContext *ctx) /* The helper may raise ILLEGAL_INSN -- record binv for unwind. */ decode_save_opc(ctx); /* We may have changed important cpu state -- exit to main loop. */ - gen_set_pc_imm(ctx, ctx->pc_succ_insn); + gen_update_pc(ctx, ctx->cur_insn_len); exit_tb(ctx); ctx->base.is_jmp = DISAS_NORETURN; return true; |