2 Copyright (C) 1999-2014 Free Software Foundation, Inc.
3 Contributed by Red Hat.
5 This file is part of the GNU simulators.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 #define WANT_CPU frvbf
21 #define WANT_CPU_FRVBF
25 /* Simulator specific vliw related functions. Additional vliw related
26 code used by both the simulator and the assembler is in frv.opc. */
28 int insns_in_slot[UNIT_NUM_UNITS] = {0};
31 frv_vliw_setup_insn (SIM_CPU *current_cpu, const CGEN_INSN *insn)
36 /* Always clear the NE index which indicates the target register
37 of a non excepting insn. This will be reset by the insn if
39 frv_interrupt_state.ne_index = NE_NOFLAG;
41 vliw = CPU_VLIW (current_cpu);
42 index = vliw->next_slot - 1;
43 if (frv_is_float_insn (insn))
45 /* If the insn is to be added and is a floating point insn and
46 it is the first floating point insn in the vliw, then clear
49 for (i = 0; i < index; ++i)
50 if (frv_is_float_major (vliw->major[i], vliw->mach))
51 break; /* found float insn. */
54 SI fsr0 = GET_FSR (0);
55 SET_FSR_FTT (fsr0, FTT_NONE);
59 else if (frv_is_media_insn (insn))
61 /* Clear the appropriate MSR fields depending on which slot
63 CGEN_ATTR_VALUE_ENUM_TYPE preserve_ovf;
64 SI msr0 = GET_MSR (0);
66 preserve_ovf = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_PRESERVE_OVF);
67 if ((*vliw->current_vliw)[index] == UNIT_FM0)
71 /* Clear MSR0.OVF and MSR0.SIE. */
80 /* Clear MSR1.OVF and MSR1.SIE. */
81 SI msr1 = GET_MSR (1);
88 } /* Insn is a media insns. */
89 COUNT_INSNS_IN_SLOT ((*vliw->current_vliw)[index]);