| 1 | /* Lattice Mico32 simulator support code. |
| 2 | Contributed by Jon Beniston <jon@beniston.com> |
| 3 | |
| 4 | Copyright (C) 2009-2016 Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of GDB. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | #define WANT_CPU lm32bf |
| 22 | #define WANT_CPU_LM32BF |
| 23 | |
| 24 | #include "sim-main.h" |
| 25 | #include "cgen-mem.h" |
| 26 | #include "cgen-ops.h" |
| 27 | |
| 28 | /* The contents of BUF are in target byte order. */ |
| 29 | |
| 30 | int |
| 31 | lm32bf_fetch_register (SIM_CPU * current_cpu, int rn, unsigned char *buf, |
| 32 | int len) |
| 33 | { |
| 34 | if (rn < 32) |
| 35 | SETTSI (buf, lm32bf_h_gr_get (current_cpu, rn)); |
| 36 | else |
| 37 | switch (rn) |
| 38 | { |
| 39 | case SIM_LM32_PC_REGNUM: |
| 40 | SETTSI (buf, lm32bf_h_pc_get (current_cpu)); |
| 41 | break; |
| 42 | default: |
| 43 | return 0; |
| 44 | } |
| 45 | |
| 46 | return -1; |
| 47 | } |
| 48 | |
| 49 | /* The contents of BUF are in target byte order. */ |
| 50 | |
| 51 | int |
| 52 | lm32bf_store_register (SIM_CPU * current_cpu, int rn, unsigned char *buf, |
| 53 | int len) |
| 54 | { |
| 55 | if (rn < 32) |
| 56 | lm32bf_h_gr_set (current_cpu, rn, GETTSI (buf)); |
| 57 | else |
| 58 | switch (rn) |
| 59 | { |
| 60 | case SIM_LM32_PC_REGNUM: |
| 61 | lm32bf_h_pc_set (current_cpu, GETTSI (buf)); |
| 62 | break; |
| 63 | default: |
| 64 | return 0; |
| 65 | } |
| 66 | |
| 67 | return -1; |
| 68 | } |
| 69 | |
| 70 | |
| 71 | |
| 72 | #if WITH_PROFILE_MODEL_P |
| 73 | |
| 74 | /* Initialize cycle counting for an insn. |
| 75 | FIRST_P is non-zero if this is the first insn in a set of parallel |
| 76 | insns. */ |
| 77 | |
| 78 | void |
| 79 | lm32bf_model_insn_before (SIM_CPU * cpu, int first_p) |
| 80 | { |
| 81 | } |
| 82 | |
| 83 | /* Record the cycles computed for an insn. |
| 84 | LAST_P is non-zero if this is the last insn in a set of parallel insns, |
| 85 | and we update the total cycle count. |
| 86 | CYCLES is the cycle count of the insn. */ |
| 87 | |
| 88 | void |
| 89 | lm32bf_model_insn_after (SIM_CPU * cpu, int last_p, int cycles) |
| 90 | { |
| 91 | } |
| 92 | |
| 93 | int |
| 94 | lm32bf_model_lm32_u_exec (SIM_CPU * cpu, const IDESC * idesc, |
| 95 | int unit_num, int referenced) |
| 96 | { |
| 97 | return idesc->timing->units[unit_num].done; |
| 98 | } |
| 99 | |
| 100 | #endif /* WITH_PROFILE_MODEL_P */ |