cpu/mep-c5.cpu

   1 ; Copyright 2011 Free Software Foundation, Inc.
   2 ;
   3 ; Contributed by Red Hat Inc;
   4 ;
   5 ; This file is part of the GNU Binutils.
   6 ;
   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.
  11 ;
  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.
  16 ;
  17 ; You should have received a copy of the GNU General Public License
  18 ; along with this program; if not, write to the Free Software
  19 ; Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20 ; MA 02110-1301, USA.
  21
  22 ; Insns introduced for the MeP-c5 core
  23 ;
  24
  25 (dnf f-c5n4     "extended field"     (all-mep-core-isas)   16  4)
  26 (dnf f-c5n5     "extended field"     (all-mep-core-isas)   20  4)
  27 (dnf f-c5n6     "extended field"     (all-mep-core-isas)   24  4)
  28 (dnf f-c5n7     "extended field"     (all-mep-core-isas)   28  4)
  29 (dnf f-rl5      "register l c5"      (all-mep-core-isas)   20  4)
  30 (df  f-12s20    "extended field"     (all-mep-core-isas)   20  12  INT #f #f)
  31
  32 (dnop rl5       "register Rl c5"     (all-mep-core-isas) h-gpr   f-rl5)
  33 (dnop cdisp12   "copro addend (12 bits)" (all-mep-core-isas) h-sint  f-12s20)
  34
  35 (dnci stcb_r "store in control bus space" (VOLATILE (MACH c5))
  36      "stcb $rn,($rma)"
  37      (+ MAJ_7 rn rma (f-sub4 12))
  38      (c-call VOID "do_stcb" rn (and rma #xffff))
  39      ((mep (unit u-use-gpr (in usereg rn))
  40            (unit u-use-gpr (in usereg rma))
  41            (unit u-exec)
  42            (unit u-stcb))))
  43
  44 (dnci ldcb_r "load from control bus space" (VOLATILE (MACH c5) (LATENCY 3))
  45      "ldcb $rn,($rma)"
  46      (+ MAJ_7 rn rma (f-sub4 13))
  47      (set rn (c-call SI "do_ldcb" (and rma #xffff)))
  48       ((mep (unit u-use-gpr (in usereg rma))
  49             (unit u-ldcb)
  50             (unit u-exec)
  51             (unit u-ldcb-gpr (out loadreg rn)))))
  52
  53 (dnci pref "cache prefetch" ((MACH c5) VOLATILE)
  54      "pref $cimm4,($rma)"
  55      (+ MAJ_7 cimm4 rma (f-sub4 5))
  56      (sequence ()
  57                (c-call VOID "check_option_dcache" pc)
  58                (c-call VOID "do_cache_prefetch" cimm4 rma pc))
  59      ((mep (unit u-use-gpr (in usereg rma))
  60            (unit u-exec))))
  61
  62 (dnci prefd "cache prefetch" ((MACH c5) VOLATILE)
  63      "pref $cimm4,$sdisp16($rma)"
  64      (+ MAJ_15 cimm4 rma (f-sub4 3) sdisp16)
  65      (sequence ()
  66                (c-call VOID "check_option_dcache" pc)
  67                (c-call VOID "do_cache_prefetch" cimm4 (add INT rma (ext SI sdisp16)) pc))
  68      ((mep (unit u-use-gpr (in usereg rma))
  69            (unit u-exec))))
  70
  71 (dnci casb3 "compare and swap byte 3" ((MACH c5) VOLATILE OPTIONAL_BIT_INSN)
  72       "casb3 $rl5,$rn,($rm)"
  73       (+ MAJ_15 rn rm (f-sub4 #x1) (f-c5n4 #x2) rl5 (f-c5n6 #x0) (f-c5n7 #x0))
  74       (sequence ()
  75                 (c-call VOID "do_casb3" (index-of rl5) rn rm pc)
  76                 (set rl5 rl5)
  77                 )
  78       ((mep (unit u-use-gpr (in usereg rl5))
  79             (unit u-load-gpr (out loadreg rl5))
  80             (unit u-exec))))
  81
  82 (dnci cash3 "compare and swap halfword 3" ((MACH c5) VOLATILE OPTIONAL_BIT_INSN)
  83       "cash3 $rl5,$rn,($rm)"
  84       (+ MAJ_15 rn rm (f-sub4 #x1) (f-c5n4 #x2) rl5 (f-c5n6 #x0) (f-c5n7 #x1))
  85       (sequence ()
  86                 (c-call VOID "do_cash3" (index-of rl5) rn rm pc)
  87                 (set rl5 rl5)
  88                 )
  89       ((mep (unit u-use-gpr (in usereg rl5))
  90             (unit u-load-gpr (out loadreg rl5))
  91             (unit u-exec))))
  92
  93 (dnci casw3 "compare and swap word 3" ((MACH c5) VOLATILE OPTIONAL_BIT_INSN)
  94       "casw3 $rl5,$rn,($rm)"
  95       (+ MAJ_15 rn rm (f-sub4 #x1) (f-c5n4 #x2) rl5 (f-c5n6 #x0) (f-c5n7 #x2))
  96       (sequence ()
  97                 (c-call VOID "do_casw3" (index-of rl5) rn rm pc)
  98                 (set rl5 rl5)
  99                 )
 100       ((mep (unit u-use-gpr (in usereg rl5))
 101             (unit u-load-gpr (out loadreg rl5))
 102             (unit u-exec))))
 103
 104
 105
 106 (dnci sbcp "store byte coprocessor" (OPTIONAL_CP_INSN (STALL STORE) (MACH c5))
 107      "sbcp $crn,$cdisp12($rma)"
 108      (+ MAJ_15 crn rma (f-sub4 6) (f-ext4 0) cdisp12)
 109      (sequence ()
 110                (c-call "check_option_cp" pc)
 111                (c-call VOID "check_write_to_text" (add rma (ext SI cdisp12)))
 112                (set (mem QI (add rma (ext SI cdisp12))) (and crn #xff)))
 113      ((mep (unit u-use-gpr (in usereg rma))
 114            (unit u-exec))))
 115
 116 (dnci lbcp "load byte coprocessor" (OPTIONAL_CP_INSN (STALL STORE) (MACH c5))
 117      "lbcp $crn,$cdisp12($rma)"
 118      (+ MAJ_15 crn rma (f-sub4 6) (f-ext4 4) cdisp12)
 119      (sequence ()
 120                (c-call "check_option_cp" pc)
 121                (set crn (ext SI (mem QI (add rma (ext SI cdisp12))))))
 122      ((mep (unit u-use-gpr (in usereg rma))
 123            (unit u-exec))))
 124
 125 (dnci lbucp "load byte coprocessor" (OPTIONAL_CP_INSN (STALL STORE) (MACH c5))
 126      "lbucp $crn,$cdisp12($rma)"
 127      (+ MAJ_15 crn rma (f-sub4 6) (f-ext4 12) cdisp12)
 128      (sequence ()
 129                (c-call "check_option_cp" pc)
 130                (set crn (zext SI (mem QI (add rma (ext SI cdisp12))))))
 131      ((mep (unit u-use-gpr (in usereg rma))
 132            (unit u-exec))))
 133
 134
 135 (dnci shcp "store half-word coprocessor" (OPTIONAL_CP_INSN (STALL STORE) (MACH c5))
 136      "shcp $crn,$cdisp12($rma)"
 137      (+ MAJ_15 crn rma (f-sub4 6) (f-ext4 1) cdisp12)
 138      (sequence ()
 139                (c-call "check_option_cp" pc)
 140                (c-call VOID "check_write_to_text" (add rma (ext SI cdisp12)))
 141                (set (mem HI (add rma (ext SI cdisp12))) (and crn #xffff)))
 142      ((mep (unit u-use-gpr (in usereg rma))
 143            (unit u-exec))))
 144
 145 (dnci lhcp "load half-word coprocessor" (OPTIONAL_CP_INSN (STALL STORE) (MACH c5))
 146      "lhcp $crn,$cdisp12($rma)"
 147      (+ MAJ_15 crn rma (f-sub4 6) (f-ext4 5) cdisp12)
 148      (sequence ()
 149                (c-call "check_option_cp" pc)
 150                (set crn (ext SI (mem HI (add rma (ext SI cdisp12))))))
 151      ((mep (unit u-use-gpr (in usereg rma))
 152            (unit u-exec))))
 153
 154 (dnci lhucp "load half-word coprocessor" (OPTIONAL_CP_INSN (STALL STORE) (MACH c5))
 155      "lhucp $crn,$cdisp12($rma)"
 156      (+ MAJ_15 crn rma (f-sub4 6) (f-ext4 13) cdisp12)
 157      (sequence ()
 158                (c-call "check_option_cp" pc)
 159                (set crn (zext SI (mem HI (add rma (ext SI cdisp12))))))
 160      ((mep (unit u-use-gpr (in usereg rma))
 161            (unit u-exec))))
 162
 163
 164 (dnci lbucpa "load byte coprocessor" (OPTIONAL_CP_INSN (STALL LOAD) (MACH c5))
 165      "lbucpa $crn,($rma+),$cdisp10"
 166      (+ MAJ_15 crn rma (f-sub4 5) (f-ext4 #xC) (f-ext62 #x0) cdisp10)
 167      (sequence ()
 168                (c-call "check_option_cp" pc)
 169                (set crn (zext SI (mem QI rma)))
 170                (set rma (add rma cdisp10)))
 171      ((mep (unit u-use-gpr (in usereg rma))
 172            (unit u-exec))))
 173
 174 (dnci lhucpa "load half-word coprocessor" (OPTIONAL_CP_INSN (STALL LOAD) (MACH c5))
 175      "lhucpa $crn,($rma+),$cdisp10a2"
 176      (+ MAJ_15 crn rma (f-sub4 5) (f-ext4 #xD) (f-ext62 #x0) cdisp10a2)
 177      (sequence ()
 178                (c-call "check_option_cp" pc)
 179                (set crn (zext SI (mem HI (and rma (inv SI 1)))))
 180                (set rma (add rma (ext SI cdisp10a2))))
 181      ((mep (unit u-use-gpr (in usereg rma))
 182            (unit u-exec))))
 183
 184 (dnci lbucpm0 "lbucpm0" (OPTIONAL_CP_INSN (MACH c5))
 185      "lbucpm0 $crn,($rma+),$cdisp10"
 186      (+ MAJ_15 crn rma (f-sub4 5) (f-ext4 #xc) (f-ext62 #x2) cdisp10)
 187      (sequence ()
 188                (c-call "check_option_cp" pc)
 189                (set crn (zext SI (mem QI rma)))
 190                (set rma (mod0 cdisp10)))
 191      ((mep (unit u-use-gpr (in usereg rma))
 192            (unit u-exec))))
 193
 194 (dnci lhucpm0 "lhucpm0" (OPTIONAL_CP_INSN (MACH c5))
 195      "lhucpm0 $crn,($rma+),$cdisp10a2"
 196      (+ MAJ_15 crn rma (f-sub4 5) (f-ext4 #xd) (f-ext62 #x2) cdisp10a2)
 197      (sequence ()
 198                (c-call "check_option_cp" pc)
 199                (set crn (zext SI (mem HI (and rma (inv SI 1)))))
 200                (set rma (mod0 cdisp10a2)))
 201      ((mep (unit u-use-gpr (in usereg rma))
 202            (unit u-exec))))
 203
 204 (dnci lbucpm1 "lbucpm1" (OPTIONAL_CP_INSN (MACH c5))
 205      "lbucpm1 $crn,($rma+),$cdisp10"
 206      (+ MAJ_15 crn rma (f-sub4 5) (f-ext4 #xc) (f-ext62 #x3) cdisp10)
 207      (sequence ()
 208                (c-call "check_option_cp" pc)
 209                (set crn (zext SI (mem QI rma)))
 210                (set rma (mod1 cdisp10)))
 211      ((mep (unit u-use-gpr (in usereg rma))
 212            (unit u-exec))))
 213
 214 (dnci lhucpm1 "lhucpm1" (OPTIONAL_CP_INSN (MACH c5))
 215      "lhucpm1 $crn,($rma+),$cdisp10a2"
 216      (+ MAJ_15 crn rma (f-sub4 5) (f-ext4 #xd) (f-ext62 #x3) cdisp10a2)
 217      (sequence ()
 218                (c-call "check_option_cp" pc)
 219                (set crn (zext SI (mem HI (and rma (inv SI 1)))))
 220                (set rma (mod1 cdisp10a2)))
 221      ((mep (unit u-use-gpr (in usereg rma))
 222            (unit u-exec))))
 223
 224 (dnci uci "uci" ((MACH c5) VOLATILE)
 225      "uci $rn,$rm,$uimm16"
 226      (+ MAJ_15 rn rm (f-sub4 2) simm16)
 227      (set rn (c-call SI "do_UCI" rn rm (zext SI uimm16) pc))
 228      ((mep (unit u-use-gpr (in usereg rm))
 229            (unit u-use-gpr (in usereg rn))
 230            (unit u-exec))))
 231
 232 (dnf f-c5-rnm     "register n/m"              (all-mep-isas)    4  8)
 233 (dnf f-c5-rm      "register m"              (all-mep-isas)    8  4)
 234 (df  f-c5-16u16  "general 16-bit u-val"    (all-mep-isas) 16 16 UINT #f #f)
 235
 236 (dnmf f-c5-rmuimm20 "20-bit immediate in Rm/Imm16" (all-mep-isas) UINT
 237       (f-c5-rm f-c5-16u16)
 238       (sequence () ; insert
 239                 (set (ifield f-c5-rm)    (srl (ifield f-c5-rmuimm20) 16))
 240                 (set (ifield f-c5-16u16) (and (ifield f-c5-rmuimm20) #xffff))
 241                 )
 242       (sequence () ; extract
 243                 (set (ifield f-c5-rmuimm20) (or (ifield f-c5-16u16)
 244                                                 (sll (ifield f-c5-rm) 16)))
 245                 )
 246       )
 247 (dnop c5rmuimm20 "20-bit immediate in rm and imm16" (all-mep-core-isas) h-uint f-c5-rmuimm20)
 248
 249 (dnmf f-c5-rnmuimm24 "24-bit immediate in Rm/Imm16" (all-mep-isas) UINT
 250       (f-c5-rnm f-c5-16u16)
 251       (sequence () ; insert
 252                 (set (ifield f-c5-rnm)    (srl (ifield f-c5-rnmuimm24) 16))
 253                 (set (ifield f-c5-16u16) (and (ifield f-c5-rnmuimm24) #xffff))
 254                 )
 255       (sequence () ; extract
 256                 (set (ifield f-c5-rnmuimm24) (or (ifield f-c5-16u16)
 257                                                 (sll (ifield f-c5-rnm) 16)))
 258                 )
 259       )
 260 (dnop c5rnmuimm24 "24-bit immediate in rn, rm, and imm16" (all-mep-core-isas) h-uint f-c5-rnmuimm24)
 261
 262 (dnci dsp "dsp" ((MACH c5) VOLATILE)
 263      "dsp $rn,$rm,$uimm16"
 264      (+ MAJ_15 rn rm (f-sub4 0) uimm16)
 265      (set rn (c-call SI "do_DSP" rn rm (zext SI uimm16) pc))
 266      ((mep (unit u-use-gpr (in usereg rm))
 267            (unit u-use-gpr (in usereg rn))
 268            (unit u-exec))))
 269
 270 (dnci dsp0 "dsp0" ((MACH c5) VOLATILE NO-DIS ALIAS)
 271      "dsp0 $c5rnmuimm24"
 272      (+ MAJ_15 c5rnmuimm24 (f-sub4 0))
 273      (c-call VOID "do_DSP" (zext SI c5rnmuimm24) pc)
 274      ((mep (unit u-exec))))
 275
 276 (dnci dsp1 "dsp1" ((MACH c5) VOLATILE NO-DIS ALIAS)
 277      "dsp1 $rn,$c5rmuimm20"
 278      (+ MAJ_15 rn (f-sub4 0) c5rmuimm20)
 279      (set rn (c-call SI "do_DSP" rn (zext SI c5rmuimm20) pc))
 280      ((mep (unit u-use-gpr (in usereg rn))
 281            (unit u-exec))))