mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-09 04:21:49 +08:00
06c441ccef
2022-02-01 Ali Lown <ali.lown@imgtec.com> Andrew Bennett <andrew.bennett@imgtec.com> Dragan Mladjenovic <dragan.mladjenovic@rt-rk.com> Faraz Shahbazker <fshahbazker@wavecomp.com> sim/common/ChangeLog: * sim-bits.h (EXTEND9, EXTEND18 ,EXTEND19, EXTEND21, EXTEND26): New macros. sim/mips/ChangeLog: * Makefile.in (IGEN_INCLUDE): Add mips3264r6.igen. * configure: Regenerate. * configure.ac: Support mipsisa32r6 and mipsisa64r6. (sim_engine_run): Pick simulator model from processor specified in e_flags. * cp1.c (value_fpr): Handle fmt_dc32. (fp_unary, fp_binary): Zero initialize locals. (update_fcsr, fp_classify, fp_rint, fp_r6_cmp, inner_fmac, fp_fmac, fp_min, fp_max, fp_mina, fp_maxa, fp_fmadd, fp_fmsub): New functions. (sim_fpu_class_mips_mapping): New. * cp1.h (fcsr_ABS2008_mask, fcsr_ABS2008_shift): New define. * interp.c (MIPSR6_P): New. (load_word): Allow unaligned memory access for MIPSR6. * micromips.igen (sc, scd): Adapt to new do_sc* helper signature. * mips.igen: Add *r6 models. (signal_if_cti, forbiddenslot32): New helpers. (delayslot32): Use signal_if_cti. (do_sc, do_scd); Add store_ll_bit parameter. (sc, scd): Adapt to previous change. (nal, beq, bal): New definitions for *r6. (sll): Split nop and ssnop cases into ... (nop, ssnop): New definitions. (loadstore_ea): Use the 32-bit compatibility adressing. (cache): Split logic into ... (do_cache): New helper. (check_fpu): Select IEEE 754-2008 mode for R6. (not_word_value, unpredictable, check_mt_hilo, check_mf_hilo, check_multi_hilo, check_div_hilo, check_u64, do_dmfc1b, add, li, addu, and, andi, bgez, bgtz, blez, bltz, bne, break, dadd, daddiu, daddu, dror, dror32, drorv, dsll, dsll32, dsllv, dsra, dsra32, dsrav, dsrl, dsrl32, dsub, dsubu, j, jal, jalr, jalr.hb, lb, lbu, ld, lh, lhu, lui, lw, lwu, nor, or, ori, ror, rorv, sb, sd, sh, sll, sllv, slt, slti, sltiu, sltu, sra, srav, srl, srlv, sub, subu, sw, sync, syscall, teq, tge, tgeu, tlt, tltu, tne, xor, xori, check_fmt_p, do_load_double, do_store_double, abs.FMT, add.FMT, ceil.l.FMT, ceil.w.FMT, cfc1, ctc1, cvt.d.FMT, cvt.l.FMT, cvt.w.FMT, div.FMT, dfmc1, dmtc1, floor.l.FMT, floor.w.FMT, ldc1, lwc1, mfc1, mov.FMT, mtc1, mul.FMT, recip.FMT, round.l.FMT, round.w.FMT, rsqrt.FMT, sdc1, sqrt.FMT, sub.FMT, swc1, trunc.l.FMT, trunc.w.FMT, bc0f, bc0fl, bc0t, bc0tl, dmfc0, dmtc0, eret, mfc0, mtc0, cop, tlbp, tlbr, tlbwi, tlbwr): Enable on *r6 models. * mips3264r2.igen (dext, dextm, dextu, di, dins, dinsm, dinsu, dsbh, dshd, ei, ext, mfhc1, mthc1, ins, seb, seh, synci, rdhwr, wsbh): Likewise. * mips3264r6.igen: New file. * sim-main.h (FP_formats): Add fmt_dc32. (FORBIDDEN_SLOT): New macros. (simFORBIDDENSLOT, FP_R6CMP_*, FP_R6CLASS_*): New defines. (fp_r6_cmp, fp_classify, fp_rint, fp_min, fp_max, fp_mina, fp_maxa, fp_fmadd, fp_fmsub): New declarations. (R6Compare, Classify, RoundToIntegralExact, Min, Max, MinA, MaxA, FusedMultiplyAdd, FusedMultiplySub): New macros. Wrapping previous declarations. sim/testsuite/mips/ChangeLog: * basic.exp: Add r6-*.s tests. (run_r6_removed_test): New function. (run_endian_tests): New function. * hilo-hazard-3.s: Skip for mips*r6. * r2-fpu.s: New test. * r6-64.s: New test. * r6-branch.s: New test. * r6-forbidden.s: New test. * r6-fpu.s: New test. * r6-llsc-dp.s: New test. * r6-llsc-wp.s: New test. * r6-removed.csv: New test. * r6-removed.s: New test. * r6.s: New test. * utils-r6.inc: New inc.
389 lines
7.9 KiB
C
389 lines
7.9 KiB
C
// -*- C -*-
|
|
|
|
// Simulator definition for the MIPS 32/64 revision 2 instructions.
|
|
// Copyright (C) 2004-2022 Free Software Foundation, Inc.
|
|
// Contributed by David Ung, of MIPS Technologies.
|
|
//
|
|
// This file is part of the MIPS sim.
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation; either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
:function:::void:do_dsbh:int rd, int rt
|
|
{
|
|
union { uint64_t d; uint16_t h[4]; } u;
|
|
TRACE_ALU_INPUT1 (GPR[rt]);
|
|
u.d = GPR[rt];
|
|
u.h[0] = SWAP_2 (u.h[0]);
|
|
u.h[1] = SWAP_2 (u.h[1]);
|
|
u.h[2] = SWAP_2 (u.h[2]);
|
|
u.h[3] = SWAP_2 (u.h[3]);
|
|
GPR[rd] = u.d;
|
|
TRACE_ALU_RESULT1 (GPR[rd]);
|
|
}
|
|
|
|
:function:::void:do_dshd:int rd, int rt
|
|
{
|
|
uint64_t d;
|
|
TRACE_ALU_INPUT1 (GPR[rt]);
|
|
d = GPR[rt];
|
|
GPR[rd] = ((d >> 48)
|
|
| (d << 48)
|
|
| ((d & 0x0000ffff00000000ULL) >> 16)
|
|
| ((d & 0x00000000ffff0000ULL) << 16));
|
|
TRACE_ALU_RESULT1 (GPR[rd]);
|
|
}
|
|
|
|
:function:::void:do_dext:int rt, int rs, int lsb, int size
|
|
{
|
|
TRACE_ALU_INPUT3 (GPR[rs], lsb, size);
|
|
GPR[rt] = EXTRACTED64 (GPR[rs], lsb + size, lsb);
|
|
TRACE_ALU_RESULT1 (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_dextm:int rt, int rs, int lsb, int size
|
|
{
|
|
TRACE_ALU_INPUT3 (GPR[rs], lsb, size);
|
|
GPR[rt] = EXTRACTED64 (GPR[rs], lsb + size + 32, lsb);
|
|
TRACE_ALU_RESULT1 (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_dextu:int rt, int rs, int lsb, int size
|
|
{
|
|
TRACE_ALU_INPUT3 (GPR[rs], lsb, size);
|
|
GPR[rt] = EXTRACTED64 (GPR[rs], lsb + 32 + size, lsb + 32);
|
|
TRACE_ALU_RESULT1 (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_di:int rt
|
|
{
|
|
TRACE_ALU_INPUT0 ();
|
|
GPR[rt] = EXTEND32 (SR);
|
|
SR &= ~status_IE;
|
|
TRACE_ALU_RESULT1 (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_dins:int rt, int rs, int lsb, int msb
|
|
{
|
|
TRACE_ALU_INPUT4 (GPR[rt], GPR[rs], lsb, msb);
|
|
if (lsb <= msb)
|
|
GPR[rt] ^= (GPR[rt] ^ (GPR[rs] << lsb)) & MASK64 (msb, lsb);
|
|
TRACE_ALU_RESULT1 (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_dinsm:int rt, int rs, int lsb, int msb
|
|
{
|
|
TRACE_ALU_INPUT4 (GPR[rt], GPR[rs], lsb, msb);
|
|
if (lsb <= msb + 32)
|
|
GPR[rt] ^= (GPR[rt] ^ (GPR[rs] << lsb)) & MASK64 (msb + 32, lsb);
|
|
TRACE_ALU_RESULT1 (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_ei:int rt
|
|
{
|
|
TRACE_ALU_INPUT0 ();
|
|
GPR[rt] = EXTEND32 (SR);
|
|
SR |= status_IE;
|
|
TRACE_ALU_RESULT1 (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_ext:int rt, int rs, int lsb, int size
|
|
{
|
|
TRACE_ALU_INPUT3 (GPR[rs], lsb, size);
|
|
GPR[rt] = EXTEND32 (EXTRACTED32 (GPR[rs], lsb + size, lsb));
|
|
TRACE_ALU_RESULT1 (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_mfhc1:int rt, int fs
|
|
{
|
|
check_fpu (SD_);
|
|
if (SizeFGR() == 64)
|
|
GPR[rt] = EXTEND32 (WORD64HI (FGR[fs]));
|
|
else if ((fs & 0x1) == 0)
|
|
GPR[rt] = EXTEND32 (FGR[fs + 1]);
|
|
else
|
|
{
|
|
if (STATE_VERBOSE_P(SD))
|
|
sim_io_eprintf (SD,
|
|
"Warning: PC 0x%lx: MFHC1 32-bit use of odd FPR number\n",
|
|
(long) CIA);
|
|
GPR[rt] = EXTEND32 (0xBADF00D);
|
|
}
|
|
TRACE_ALU_RESULT (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_mthc1:int rt, int fs
|
|
{
|
|
check_fpu (SD_);
|
|
if (SizeFGR() == 64)
|
|
StoreFPR (fs, fmt_uninterpreted_64, SET64HI (GPR[rt]) | VL4_8 (FGR[fs]));
|
|
else if ((fs & 0x1) == 0)
|
|
StoreFPR (fs + 1, fmt_uninterpreted_32, VL4_8 (GPR[rt]));
|
|
else
|
|
{
|
|
if (STATE_VERBOSE_P(SD))
|
|
sim_io_eprintf (SD,
|
|
"Warning: PC 0x%lx: MTHC1 32-bit use of odd FPR number\n",
|
|
(long) CIA);
|
|
StoreFPR (fs, fmt_uninterpreted_32, 0xDEADC0DE);
|
|
}
|
|
TRACE_FP_RESULT (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_ins:int rt, int rs, int lsb, int msb
|
|
{
|
|
TRACE_ALU_INPUT4 (GPR[rt], GPR[rs], lsb, msb);
|
|
if (lsb <= msb)
|
|
GPR[rt] = EXTEND32 (GPR[rt] ^
|
|
((GPR[rt] ^ (GPR[rs] << lsb)) & MASK32 (msb, lsb)));
|
|
TRACE_ALU_RESULT1 (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_dinsu:int rt, int rs, int lsb, int msb
|
|
{
|
|
TRACE_ALU_INPUT4 (GPR[rt], GPR[rs], lsb, msb);
|
|
if (lsb <= msb)
|
|
GPR[rt] ^= (GPR[rt] ^ (GPR[rs] << (lsb + 32)))
|
|
& MASK64 (msb + 32, lsb + 32);
|
|
TRACE_ALU_RESULT1 (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_seb:int rd, int rt
|
|
{
|
|
TRACE_ALU_INPUT1 (GPR[rt]);
|
|
GPR[rd] = EXTEND8 (GPR[rt]);
|
|
TRACE_ALU_RESULT1 (GPR[rd]);
|
|
}
|
|
|
|
:function:::void:do_seh:int rd, int rt
|
|
{
|
|
TRACE_ALU_INPUT1 (GPR[rt]);
|
|
GPR[rd] = EXTEND16 (GPR[rt]);
|
|
TRACE_ALU_RESULT1 (GPR[rd]);
|
|
}
|
|
|
|
:function:::void:do_rdhwr:int rt, int rd
|
|
{
|
|
// Return 0 for all hardware registers currently
|
|
GPR[rt] = EXTEND32 (0);
|
|
TRACE_ALU_RESULT1 (GPR[rt]);
|
|
}
|
|
|
|
:function:::void:do_wsbh:int rd, int rt
|
|
{
|
|
union { uint32_t w; uint16_t h[2]; } u;
|
|
TRACE_ALU_INPUT1 (GPR[rt]);
|
|
u.w = GPR[rt];
|
|
u.h[0] = SWAP_2 (u.h[0]);
|
|
u.h[1] = SWAP_2 (u.h[1]);
|
|
GPR[rd] = EXTEND32 (u.w);
|
|
TRACE_ALU_RESULT1 (GPR[rd]);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.SIZE,5.LSB,000011::64::DEXT
|
|
"dext r<RT>, r<RS>, <LSB>, <SIZE+1>"
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
check_u64 (SD_, instruction_0);
|
|
do_dext (SD_, RT, RS, LSB, SIZE);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.SIZE,5.LSB,000001::64::DEXTM
|
|
"dextm r<RT>, r<RS>, <LSB>, <SIZE+33>"
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
check_u64 (SD_, instruction_0);
|
|
do_dextm (SD_, RT, RS, LSB, SIZE);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.SIZE,5.LSB,000010::64::DEXTU
|
|
"dextu r<RT>, r<RS>, <LSB+32>, <SIZE+1>"
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
check_u64 (SD_, instruction_0);
|
|
do_dextu (SD_, RT, RS, LSB, SIZE);
|
|
}
|
|
|
|
|
|
010000,01011,5.RT,01100,00000,0,00,000::32::DI
|
|
"di":RT == 0
|
|
"di r<RT>"
|
|
*mips32r2:
|
|
*mips32r6:
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
do_di (SD_, RT);
|
|
}
|
|
|
|
|
|
011111,5.RS,5.RT,5.MSB,5.LSB,000111::64::DINS
|
|
"dins r<RT>, r<RS>, <LSB>, <MSB-LSB+1>"
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
check_u64 (SD_, instruction_0);
|
|
do_dins (SD_, RT, RS, LSB, MSB);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.MSB,5.LSB,000101::64::DINSM
|
|
"dinsm r<RT>, r<RS>, <LSB>, <MSB+32-LSB+1>"
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
check_u64 (SD_, instruction_0);
|
|
do_dinsm (SD_, RT, RS, LSB, MSB);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.MSB,5.LSB,000110::64::DINSU
|
|
"dinsu r<RT>, r<RS>, <LSB+32>, <MSB-LSB+1>"
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
check_u64 (SD_, instruction_0);
|
|
do_dinsu (SD_, RT, RS, LSB, MSB);
|
|
}
|
|
|
|
|
|
011111,00000,5.RT,5.RD,00010,100100::64::DSBH
|
|
"dsbh r<RD>, r<RT>"
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
check_u64 (SD_, instruction_0);
|
|
do_dsbh (SD_, RD, RT);
|
|
}
|
|
|
|
011111,00000,5.RT,5.RD,00101,100100::64::DSHD
|
|
"dshd r<RD>, r<RT>"
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
check_u64 (SD_, instruction_0);
|
|
do_dshd (SD_, RD, RT);
|
|
}
|
|
|
|
010000,01011,5.RT,01100,00000,1,00,000::32::EI
|
|
"ei":RT == 0
|
|
"ei r<RT>"
|
|
*mips32r2:
|
|
*mips32r6:
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
do_ei (SD_, RT);
|
|
}
|
|
|
|
|
|
011111,5.RS,5.RT,5.SIZE,5.LSB,000000::32::EXT
|
|
"ext r<RT>, r<RS>, <LSB>, <SIZE+1>"
|
|
*mips32r2:
|
|
*mips32r6:
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
do_ext (SD_, RT, RS, LSB, SIZE);
|
|
}
|
|
|
|
|
|
010001,00011,5.RT,5.FS,00000000000:COP1Sa:32,f::MFHC1
|
|
"mfhc1 r<RT>, f<FS>"
|
|
*mips32r2:
|
|
*mips32r6:
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
do_mfhc1 (SD_, RT, FS);
|
|
}
|
|
|
|
010001,00111,5.RT,5.FS,00000000000:COP1Sa:32,f::MTHC1
|
|
"mthc1 r<RT>, f<FS>"
|
|
*mips32r2:
|
|
*mips32r6:
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
do_mthc1 (SD_, RT, FS);
|
|
}
|
|
|
|
|
|
011111,5.RS,5.RT,5.MSB,5.LSB,000100::32::INS
|
|
"ins r<RT>, r<RS>, <LSB>, <MSB-LSB+1>"
|
|
*mips32r2:
|
|
*mips32r6:
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
do_ins (SD_, RT, RS, LSB, MSB);
|
|
}
|
|
|
|
|
|
011111,00000,5.RT,5.RD,10000,100000::32::SEB
|
|
"seb r<RD>, r<RT>"
|
|
*mips32r2:
|
|
*mips32r6:
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
do_seb (SD_, RD, RT);
|
|
}
|
|
|
|
011111,00000,5.RT,5.RD,11000,100000::32::SEH
|
|
"seh r<RD>, r<RT>"
|
|
*mips32r2:
|
|
*mips32r6:
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
do_seh (SD_, RD, RT);
|
|
}
|
|
|
|
|
|
000001,5.BASE,11111,16.OFFSET::32::SYNCI
|
|
"synci <OFFSET>(r<BASE>)"
|
|
*mips32r2:
|
|
*mips32r6:
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
// sync i-cache - nothing to do currently
|
|
}
|
|
|
|
|
|
011111,00000,5.RT,5.RD,00000,111011::32::RDHWR
|
|
"rdhwr r<RT>, r<RD>"
|
|
*mips32r2:
|
|
*mips32r6:
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
do_rdhwr (SD_, RT, RD);
|
|
}
|
|
|
|
|
|
011111,00000,5.RT,5.RD,00010,100000::32::WSBH
|
|
"wsbh r<RD>, r<RT>"
|
|
*mips32r2:
|
|
*mips32r6:
|
|
*mips64r2:
|
|
*mips64r6:
|
|
{
|
|
do_wsbh (SD_, RD, RT);
|
|
}
|
|
|
|
|
|
|