2 Copyright (C) 1999, 2000, 2001, 2003 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 2, or (at your option)
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 along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 #define WANT_CPU frvbf
22 #define WANT_CPU_FRVBF
26 /* Simulator specific vliw related functions. Additional vliw related
27 code used by both the simulator and the assembler is in frv.opc. */
29 int insns_in_slot[UNIT_NUM_UNITS] = {0};
32 frv_vliw_setup_insn (SIM_CPU *current_cpu, const CGEN_INSN *insn)
37 /* Always clear the NE index which indicates the target register
38 of a non excepting insn. This will be reset by the insn if
40 frv_interrupt_state.ne_index = NE_NOFLAG;
42 vliw = CPU_VLIW (current_cpu);
43 index = vliw->next_slot - 1;
44 if (frv_is_float_insn (insn))
46 /* If the insn is to be added and is a floating point insn and
47 it is the first floating point insn in the vliw, then clear
50 for (i = 0; i < index; ++i)
51 if (frv_is_float_major (vliw->major[i], vliw->mach))
52 break; /* found float insn. */
55 SI fsr0 = GET_FSR (0);
56 SET_FSR_FTT (fsr0, FTT_NONE);
60 else if (frv_is_media_insn (insn))
62 /* Clear the appropriate MSR fields depending on which slot
64 CGEN_ATTR_VALUE_TYPE preserve_ovf;
65 SI msr0 = GET_MSR (0);
67 preserve_ovf = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_PRESERVE_OVF);
68 if ((*vliw->current_vliw)[index] == UNIT_FM0)
72 /* Clear MSR0.OVF and MSR0.SIE. */
81 /* Clear MSR1.OVF and MSR1.SIE. */
82 SI msr1 = GET_MSR (1);
89 } /* Insn is a media insns. */
90 COUNT_INSNS_IN_SLOT ((*vliw->current_vliw)[index]);