8e394ffc7a
2015-09-25 Andrew Bennett <andrew.bennett@imgtec.com>
Ali Lown <ali.lown@imgtec.com>
sim/common/
* sim-bits.h (EXTEND6): New macro.
(EXTEND12): New macro.
(EXTEND25): New macro.
sim/mips/
* Makefile.in (tmp-micromips): New rule.
(tmp-mach-multi): Add support for micromips.
* configure.ac (mips*-sde-elf* | mips*-mti-elf*): Made a multi sim
that works for both mips64 and micromips64.
(mipsisa32r2*-*-*): Made a multi sim that works for mips32 and
micromips32.
Add build support for micromips.
* dsp.igen (do_ph_s_absq, do_w_s_absq, do_qb_s_absq, do_addsc,
do_addwc, do_bitrev, do_extpv, do_extrv, do_extrv_s_h, do_insv,
do_lxx do_modsub, do_mthlip, do_mulsaq_s_w_ph, do_ph_packrl, do_qb_pick
do_ph_pick, do_qb_ph_precequ, do_qb_ph_preceu, do_w_preceq
do_w_ph_precrq, do_ph_qb_precrq, do_w_ph_rs_precrq do_qb_w_raddu,
do_rddsp, do_repl, do_shilov, do_ph_shl, do_qb_shl do_w_s_shllv,
do_ph_shrlv, do_w_r_shrav, do_wrdsp, do_qb_shrav, do_append,
do_balign, do_ph_w_mulsa, do_ph_qb_precr, do_prepend): New functions.
Refactored instruction code to use these functions.
* dsp2.igen: Refactored instruction code to use the new functions.
* interp.c (decode_coproc): Refactored to work with any instruction
encoding.
(isa_mode): New variable
(RSVD_INSTRUCTION): Changed to 0x00000039.
* m16.igen (BREAK16): Refactored instruction to use do_break16.
(JALX32): Add mips32, mips64, mips32r2 and mips64r2 models.
* micromips.dc: New file.
* micromips.igen: New file.
* micromips16.dc: New file.
* micromipsdsp.igen: New file.
* micromipsrun.c: New file.
* mips.igen (do_swc1): Changed to work with any instruction encoding.
(do_add do_addi do_andi do_dadd do_daddi do_dsll32 do_dsra32
do_dsrl32, do_dsub, do_break, do_break16, do_clo, do_clz, do_dclo
do_dclz, do_lb, do_lh, do_lwr, do_lwl, do_lwc, do_lw, do_lwu, do_lhu
do_ldc, do_lbu, do_ll, do_lld, do_lui, do_madd, do_dsp_madd, do_maddu
do_dsp_maddu, do_dsp_mfhi, do_dsp_mflo, do_movn, do_movz, do_msub
do_dsp_msub, do_msubu, do_dsp_msubu, do_mthi, do_dsp_mthi, do_mtlo
do_dsp_mtlo, do_mul, do_dsp_mult, do_dsp_multu, do_pref, do_sc, do_scd
do_sub, do_sw, do_teq, do_teqi, do_tge, do_tgei, do_tgeiu, do_tgeu, do_tlt
do_tlti, do_tltiu, do_tltu, do_tne, do_tnei, do_abs_fmt, do_add_fmt
do_alnv_ps, do_c_cond_fmt, do_ceil_fmt, do_cfc1, do_ctc1, do_cvt_d_fmt
do_cvt_l_fmt, do_cvt_ps_s, do_cvt_s_fmt, do_cvt_s_pl, do_cvt_s_pu
do_cvt_w_fmt, do_div_fmt, do_dmfc1b, do_dmtc1b, do_floor_fmt, do_luxc1_32
do_luxc1_64, do_lwc1, do_lwxc1, do_madd_fmt, do_mfc1b, do_mov_fmt, do_movtf
do_movtf_fmt, do_movn_fmt, do_movz_fmt, do_msub_fmt, do_mtc1b, do_mul_fmt
do_neg_fmt, do_nmadd_fmt, do_nmsub_fmt, do_pll_ps, do_plu_ps, do_pul_ps
do_puu_ps, do_recip_fmt, do_round_fmt, do_rsqrt_fmt, do_prefx, do_sdc1
do_suxc1_32, do_suxc1_64, do_sqrt_fmt, do_sub_fmt, do_swc1, do_swxc1
do_trunc_fmt): New functions, refactored from existing instructions.
Refactored instruction code to use these functions.
(RSVD): Changed to use new reserved instruction.
(loadstore_ea, not_word_value, unpredictable, check_mt_hilo, check_mf_hilo,
check_mult_hilo, check_div_hilo, check_u64, do_luxc1_32, do_sdc1, do_suxc1_32,
check_fmt_p, check_fpu, do_load_double, do_store_double): Added micromips32
and micromips64 models.
Added include for micromips.igen and micromipsdsp.igen
Add micromips32 and micromips64 models.
(DecodeCoproc): Updated to use new macro definition.
* mips3264r2.igen (do_dsbh, do_dshd, do_dext, do_dextm, do_dextu, do_di,
do_dins, do_dinsm, do_ei, do_ext, do_mfhc1, do_mthc1, do_ins, do_dinsu,
do_seb, do_seh do_rdhwr, do_wsbh): New functions.
Refactored instruction code to use these functions.
* sim-main.h (CP0_operation): New enum.
(DecodeCoproc): Updated macro.
(IMEM32_MICROMIPS, IMEM16_MICROMIPS, MICROMIPS_MINOR_OPCODE,
MICROMIPS_DELAYSLOT_SIZE_ANY, MICROMIPS_DELAYSLOT_SIZE_16, MICROMIPS_DELAYSLOT_SIZE_32,
ISA_MODE_MIPS32 and ISA_MODE_MICROMIPS): New defines.
(sim_state): Add isa_mode field.
sim/testsuite/sim/mips/
* basic.exp (run_micromips_test, run_sim_tests): New functions
Add support for micromips tests.
* hilo-hazard-4.s: New file.
* testutils.inc (_dowrite): Changed reserved instruction encoding.
(writemsg): Moved the la and li instructions before the data they are
assigned to, which prevents a bug where MIPS32 relocations are used instead
of micromips relocations when building for micromips.
358 lines
7.6 KiB
C
358 lines
7.6 KiB
C
// -*- C -*-
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// Simulator definition for the MIPS 32/64 revision 2 instructions.
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// Copyright (C) 2004-2015 Free Software Foundation, Inc.
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// Contributed by David Ung, of MIPS Technologies.
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//
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// This file is part of the MIPS sim.
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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:function:::void:do_dsbh:int rd, int rt
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{
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union { unsigned64 d; unsigned16 h[4]; } u;
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TRACE_ALU_INPUT1 (GPR[rt]);
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u.d = GPR[rt];
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u.h[0] = SWAP_2 (u.h[0]);
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u.h[1] = SWAP_2 (u.h[1]);
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u.h[2] = SWAP_2 (u.h[2]);
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u.h[3] = SWAP_2 (u.h[3]);
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GPR[rd] = u.d;
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TRACE_ALU_RESULT1 (GPR[rd]);
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}
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:function:::void:do_dshd:int rd, int rt
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{
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unsigned64 d;
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TRACE_ALU_INPUT1 (GPR[rt]);
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d = GPR[rt];
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GPR[rd] = ((d >> 48)
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| (d << 48)
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| ((d & 0x0000ffff00000000ULL) >> 16)
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| ((d & 0x00000000ffff0000ULL) << 16));
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TRACE_ALU_RESULT1 (GPR[rd]);
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}
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:function:::void:do_dext:int rt, int rs, int lsb, int size
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{
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TRACE_ALU_INPUT3 (GPR[rs], lsb, size);
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GPR[rt] = EXTRACTED64 (GPR[rs], lsb + size, lsb);
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TRACE_ALU_RESULT1 (GPR[rt]);
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}
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:function:::void:do_dextm:int rt, int rs, int lsb, int size
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{
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TRACE_ALU_INPUT3 (GPR[rs], lsb, size);
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GPR[rt] = EXTRACTED64 (GPR[rs], lsb + size + 32, lsb);
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TRACE_ALU_RESULT1 (GPR[rt]);
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}
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:function:::void:do_dextu:int rt, int rs, int lsb, int size
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{
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TRACE_ALU_INPUT3 (GPR[rs], lsb, size);
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GPR[rt] = EXTRACTED64 (GPR[rs], lsb + 32 + size, lsb + 32);
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TRACE_ALU_RESULT1 (GPR[rt]);
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}
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:function:::void:do_di:int rt
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{
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TRACE_ALU_INPUT0 ();
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GPR[rt] = EXTEND32 (SR);
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SR &= ~status_IE;
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TRACE_ALU_RESULT1 (GPR[rt]);
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}
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:function:::void:do_dins:int rt, int rs, int lsb, int msb
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{
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TRACE_ALU_INPUT4 (GPR[rt], GPR[rs], lsb, msb);
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if (lsb <= msb)
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GPR[rt] ^= (GPR[rt] ^ (GPR[rs] << lsb)) & MASK64 (msb, lsb);
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TRACE_ALU_RESULT1 (GPR[rt]);
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}
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:function:::void:do_dinsm:int rt, int rs, int lsb, int msb
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{
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TRACE_ALU_INPUT4 (GPR[rt], GPR[rs], lsb, msb);
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if (lsb <= msb + 32)
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GPR[rt] ^= (GPR[rt] ^ (GPR[rs] << lsb)) & MASK64 (msb + 32, lsb);
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TRACE_ALU_RESULT1 (GPR[rt]);
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}
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:function:::void:do_ei:int rt
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{
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TRACE_ALU_INPUT0 ();
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GPR[rt] = EXTEND32 (SR);
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SR |= status_IE;
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TRACE_ALU_RESULT1 (GPR[rt]);
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}
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:function:::void:do_ext:int rt, int rs, int lsb, int size
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{
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TRACE_ALU_INPUT3 (GPR[rs], lsb, size);
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GPR[rt] = EXTEND32 (EXTRACTED32 (GPR[rs], lsb + size, lsb));
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TRACE_ALU_RESULT1 (GPR[rt]);
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}
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:function:::void:do_mfhc1:int rt, int fs
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{
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check_fpu (SD_);
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if (SizeFGR() == 64)
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GPR[rt] = EXTEND32 (WORD64HI (FGR[fs]));
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else if ((fs & 0x1) == 0)
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GPR[rt] = EXTEND32 (FGR[fs + 1]);
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else
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{
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if (STATE_VERBOSE_P(SD))
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sim_io_eprintf (SD,
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"Warning: PC 0x%lx: MFHC1 32-bit use of odd FPR number\n",
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(long) CIA);
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GPR[rt] = EXTEND32 (0xBADF00D);
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}
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TRACE_ALU_RESULT (GPR[rt]);
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}
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:function:::void:do_mthc1:int rt, int fs
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{
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check_fpu (SD_);
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if (SizeFGR() == 64)
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StoreFPR (fs, fmt_uninterpreted_64, SET64HI (GPR[rt]) | VL4_8 (FGR[fs]));
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else if ((fs & 0x1) == 0)
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StoreFPR (fs + 1, fmt_uninterpreted_32, VL4_8 (GPR[rt]));
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else
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{
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if (STATE_VERBOSE_P(SD))
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sim_io_eprintf (SD,
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"Warning: PC 0x%lx: MTHC1 32-bit use of odd FPR number\n",
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(long) CIA);
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StoreFPR (fs, fmt_uninterpreted_32, 0xDEADC0DE);
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}
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TRACE_FP_RESULT (GPR[rt]);
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}
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:function:::void:do_ins:int rt, int rs, int lsb, int msb
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{
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TRACE_ALU_INPUT4 (GPR[rt], GPR[rs], lsb, msb);
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if (lsb <= msb)
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GPR[rt] = EXTEND32 (GPR[rt] ^
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((GPR[rt] ^ (GPR[rs] << lsb)) & MASK32 (msb, lsb)));
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TRACE_ALU_RESULT1 (GPR[rt]);
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}
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:function:::void:do_dinsu:int rt, int rs, int lsb, int msb
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{
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TRACE_ALU_INPUT4 (GPR[rt], GPR[rs], lsb, msb);
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if (lsb <= msb)
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GPR[rt] ^= (GPR[rt] ^ (GPR[rs] << (lsb + 32)))
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& MASK64 (msb + 32, lsb + 32);
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TRACE_ALU_RESULT1 (GPR[rt]);
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}
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:function:::void:do_seb:int rd, int rt
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{
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TRACE_ALU_INPUT1 (GPR[rt]);
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GPR[rd] = EXTEND8 (GPR[rt]);
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TRACE_ALU_RESULT1 (GPR[rd]);
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}
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:function:::void:do_seh:int rd, int rt
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{
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TRACE_ALU_INPUT1 (GPR[rt]);
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GPR[rd] = EXTEND16 (GPR[rt]);
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TRACE_ALU_RESULT1 (GPR[rd]);
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}
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:function:::void:do_rdhwr:int rt, int rd
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{
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// Return 0 for all hardware registers currently
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GPR[rt] = EXTEND32 (0);
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TRACE_ALU_RESULT1 (GPR[rt]);
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}
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:function:::void:do_wsbh:int rd, int rt
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{
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union { unsigned32 w; unsigned16 h[2]; } u;
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TRACE_ALU_INPUT1 (GPR[rt]);
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u.w = GPR[rt];
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u.h[0] = SWAP_2 (u.h[0]);
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u.h[1] = SWAP_2 (u.h[1]);
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GPR[rd] = EXTEND32 (u.w);
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TRACE_ALU_RESULT1 (GPR[rd]);
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}
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011111,5.RS,5.RT,5.SIZE,5.LSB,000011::64::DEXT
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"dext r<RT>, r<RS>, <LSB>, <SIZE+1>"
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*mips64r2:
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{
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check_u64 (SD_, instruction_0);
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do_dext (SD_, RT, RS, LSB, SIZE);
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}
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011111,5.RS,5.RT,5.SIZE,5.LSB,000001::64::DEXTM
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"dextm r<RT>, r<RS>, <LSB>, <SIZE+33>"
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*mips64r2:
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{
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check_u64 (SD_, instruction_0);
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do_dextm (SD_, RT, RS, LSB, SIZE);
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}
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011111,5.RS,5.RT,5.SIZE,5.LSB,000010::64::DEXTU
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"dextu r<RT>, r<RS>, <LSB+32>, <SIZE+1>"
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*mips64r2:
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{
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check_u64 (SD_, instruction_0);
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do_dextu (SD_, RT, RS, LSB, SIZE);
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}
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010000,01011,5.RT,01100,00000,0,00,000::32::DI
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"di":RT == 0
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"di r<RT>"
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*mips32r2:
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*mips64r2:
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{
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do_di (SD_, RT);
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}
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011111,5.RS,5.RT,5.MSB,5.LSB,000111::64::DINS
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"dins r<RT>, r<RS>, <LSB>, <MSB-LSB+1>"
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*mips64r2:
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{
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check_u64 (SD_, instruction_0);
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do_dins (SD_, RT, RS, LSB, MSB);
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}
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011111,5.RS,5.RT,5.MSB,5.LSB,000101::64::DINSM
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"dinsm r<RT>, r<RS>, <LSB>, <MSB+32-LSB+1>"
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*mips64r2:
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{
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check_u64 (SD_, instruction_0);
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do_dinsm (SD_, RT, RS, LSB, MSB);
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}
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011111,5.RS,5.RT,5.MSB,5.LSB,000110::64::DINSU
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"dinsu r<RT>, r<RS>, <LSB+32>, <MSB-LSB+1>"
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*mips64r2:
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{
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check_u64 (SD_, instruction_0);
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do_dinsu (SD_, RT, RS, LSB, MSB);
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}
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011111,00000,5.RT,5.RD,00010,100100::64::DSBH
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"dsbh r<RD>, r<RT>"
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*mips64r2:
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{
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check_u64 (SD_, instruction_0);
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do_dsbh (SD_, RD, RT);
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}
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011111,00000,5.RT,5.RD,00101,100100::64::DSHD
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"dshd r<RD>, r<RT>"
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*mips64r2:
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{
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check_u64 (SD_, instruction_0);
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do_dshd (SD_, RD, RT);
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}
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010000,01011,5.RT,01100,00000,1,00,000::32::EI
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"ei":RT == 0
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"ei r<RT>"
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*mips32r2:
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*mips64r2:
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{
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do_ei (SD_, RT);
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}
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011111,5.RS,5.RT,5.SIZE,5.LSB,000000::32::EXT
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"ext r<RT>, r<RS>, <LSB>, <SIZE+1>"
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*mips32r2:
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*mips64r2:
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{
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do_ext (SD_, RT, RS, LSB, SIZE);
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}
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010001,00011,5.RT,5.FS,00000000000:COP1Sa:32,f::MFHC1
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"mfhc1 r<RT>, f<FS>"
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*mips32r2:
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*mips64r2:
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{
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do_mfhc1 (SD_, RT, FS);
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}
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010001,00111,5.RT,5.FS,00000000000:COP1Sa:32,f::MTHC1
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"mthc1 r<RT>, f<FS>"
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*mips32r2:
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*mips64r2:
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{
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do_mthc1 (SD_, RT, FS);
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}
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011111,5.RS,5.RT,5.MSB,5.LSB,000100::32::INS
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"ins r<RT>, r<RS>, <LSB>, <MSB-LSB+1>"
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*mips32r2:
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*mips64r2:
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{
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do_ins (SD_, RT, RS, LSB, MSB);
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}
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011111,00000,5.RT,5.RD,10000,100000::32::SEB
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"seb r<RD>, r<RT>"
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*mips32r2:
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*mips64r2:
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{
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do_seb (SD_, RD, RT);
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}
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011111,00000,5.RT,5.RD,11000,100000::32::SEH
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"seh r<RD>, r<RT>"
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*mips32r2:
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*mips64r2:
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{
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do_seh (SD_, RD, RT);
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}
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000001,5.BASE,11111,16.OFFSET::32::SYNCI
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"synci <OFFSET>(r<BASE>)"
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*mips32r2:
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*mips64r2:
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{
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// sync i-cache - nothing to do currently
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}
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011111,00000,5.RT,5.RD,00000,111011::32::RDHWR
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"rdhwr r<RT>, r<RD>"
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*mips32r2:
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*mips64r2:
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{
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do_rdhwr (SD_, RT, RD);
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}
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011111,00000,5.RT,5.RD,00010,100000::32::WSBH
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"wsbh r<RD>, r<RT>"
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*mips32r2:
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*mips64r2:
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{
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do_wsbh (SD_, RD, RT);
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}
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