Subversion Repositories openrisc_2011-10-31

; Toshiba MeP C5 Core description.  -*- scheme -*-

; Copyright (C) 2009

; Free Software Foundation, Inc.

; Contributed by Red Hat, Inc.

;

; This file is part of GCC.

;

; GCC 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, or (at your option) any later

; version.

;

; GCC 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 GCC; see the file COPYING3.  If not see

; .

(dnf f-c5n4     "extended field"     (all-mep-core-isas)   16  4)

(dnf f-c5n5     "extended field"     (all-mep-core-isas)   20  4)

(dnf f-c5n6     "extended field"     (all-mep-core-isas)   24  4)

(dnf f-c5n7     "extended field"     (all-mep-core-isas)   28  4)

(dnf f-rl5      "register l c5"      (all-mep-core-isas)   20  4)

(df  f-12s20    "extended field"     (all-mep-core-isas)   20  12  INT #f #f)

(dnop rl5       "register Rl c5"     (all-mep-core-isas) h-gpr   f-rl5)

(dnop cdisp12   "copro addend (12 bits)" (all-mep-core-isas) h-sint  f-12s20)

(dnci stcb_r "store in control bus space" (VOLATILE (MACH c5))

     "stcb $rn,($rma)"

     (+ MAJ_7 rn rma (f-sub4 12))

     (c-call VOID "do_stcb" rn (and rma #xffff))

     ((mep (unit u-use-gpr (in usereg rn))

           (unit u-use-gpr (in usereg rma))

           (unit u-exec)

           (unit u-stcb))))

(dnci ldcb_r "load from control bus space" (VOLATILE (MACH c5) (LATENCY 3))

     "ldcb $rn,($rma)"

     (+ MAJ_7 rn rma (f-sub4 13))

     (set rn (c-call SI "do_ldcb" (and rma #xffff)))

      ((mep (unit u-use-gpr (in usereg rma))

            (unit u-ldcb)

            (unit u-exec)

            (unit u-ldcb-gpr (out loadreg rn)))))

(dnci pref "cache prefetch" ((MACH c5) VOLATILE)

     "pref $cimm4,($rma)"

     (+ MAJ_7 cimm4 rma (f-sub4 5))

     (sequence ()

               (c-call VOID "check_option_dcache" pc)

               (c-call VOID "do_cache_prefetch" cimm4 rma pc))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci prefd "cache prefetch" ((MACH c5) VOLATILE)

     "pref $cimm4,$sdisp16($rma)"

     (+ MAJ_15 cimm4 rma (f-sub4 3) sdisp16)

     (sequence ()

               (c-call VOID "check_option_dcache" pc)

               (c-call VOID "do_cache_prefetch" cimm4 (add INT rma (ext SI sdisp16)) pc))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci casb3 "compare and swap byte 3" ((MACH c5) VOLATILE OPTIONAL_BIT_INSN)

      "casb3 $rl5,$rn,($rm)"

      (+ MAJ_15 rn rm (f-sub4 #x1) (f-c5n4 #x2) rl5 (f-c5n6 #x0) (f-c5n7 #x0))

      (sequence ()

                (c-call VOID "do_casb3" (index-of rl5) rn rm pc)

                (set rl5 rl5)

                )

      ((mep (unit u-use-gpr (in usereg rl5))

            (unit u-load-gpr (out loadreg rl5))

            (unit u-exec))))

(dnci cash3 "compare and swap halfword 3" ((MACH c5) VOLATILE OPTIONAL_BIT_INSN)

      "cash3 $rl5,$rn,($rm)"

      (+ MAJ_15 rn rm (f-sub4 #x1) (f-c5n4 #x2) rl5 (f-c5n6 #x0) (f-c5n7 #x1))

      (sequence ()

                (c-call VOID "do_cash3" (index-of rl5) rn rm pc)

                (set rl5 rl5)

                )

      ((mep (unit u-use-gpr (in usereg rl5))

            (unit u-load-gpr (out loadreg rl5))

            (unit u-exec))))

(dnci casw3 "compare and swap word 3" ((MACH c5) VOLATILE OPTIONAL_BIT_INSN)

      "casw3 $rl5,$rn,($rm)"

      (+ MAJ_15 rn rm (f-sub4 #x1) (f-c5n4 #x2) rl5 (f-c5n6 #x0) (f-c5n7 #x2))

      (sequence ()

                (c-call VOID "do_casw3" (index-of rl5) rn rm pc)

                (set rl5 rl5)

                )

      ((mep (unit u-use-gpr (in usereg rl5))

            (unit u-load-gpr (out loadreg rl5))

            (unit u-exec))))

(dnci sbcp "store byte coprocessor" (OPTIONAL_CP_INSN (STALL STORE) (MACH c5))

     "sbcp $crn,$cdisp12($rma)"

     (+ MAJ_15 crn rma (f-sub4 6) (f-ext4 0) cdisp12)

     (sequence ()

               (c-call "check_option_cp" pc)

               (c-call VOID "check_write_to_text" (add rma (ext SI cdisp12)))

               (set (mem QI (add rma (ext SI cdisp12))) (and crn #xff)))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci lbcp "load byte coprocessor" (OPTIONAL_CP_INSN (STALL STORE) (MACH c5))

     "lbcp $crn,$cdisp12($rma)"

     (+ MAJ_15 crn rma (f-sub4 6) (f-ext4 4) cdisp12)

     (sequence ()

               (c-call "check_option_cp" pc)

               (set crn (ext SI (mem QI (add rma (ext SI cdisp12))))))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci lbucp "load byte coprocessor" (OPTIONAL_CP_INSN (STALL STORE) (MACH c5))

     "lbucp $crn,$cdisp12($rma)"

     (+ MAJ_15 crn rma (f-sub4 6) (f-ext4 12) cdisp12)

     (sequence ()

               (c-call "check_option_cp" pc)

               (set crn (zext SI (mem QI (add rma (ext SI cdisp12))))))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci shcp "store half-word coprocessor" (OPTIONAL_CP_INSN (STALL STORE) (MACH c5))

     "shcp $crn,$cdisp12($rma)"

     (+ MAJ_15 crn rma (f-sub4 6) (f-ext4 1) cdisp12)

     (sequence ()

               (c-call "check_option_cp" pc)

               (c-call VOID "check_write_to_text" (add rma (ext SI cdisp12)))

               (set (mem HI (add rma (ext SI cdisp12))) (and crn #xffff)))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci lhcp "load half-word coprocessor" (OPTIONAL_CP_INSN (STALL STORE) (MACH c5))

     "lhcp $crn,$cdisp12($rma)"

     (+ MAJ_15 crn rma (f-sub4 6) (f-ext4 5) cdisp12)

     (sequence ()

               (c-call "check_option_cp" pc)

               (set crn (ext SI (mem HI (add rma (ext SI cdisp12))))))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci lhucp "load half-word coprocessor" (OPTIONAL_CP_INSN (STALL STORE) (MACH c5))

     "lhucp $crn,$cdisp12($rma)"

     (+ MAJ_15 crn rma (f-sub4 6) (f-ext4 13) cdisp12)

     (sequence ()

               (c-call "check_option_cp" pc)

               (set crn (zext SI (mem HI (add rma (ext SI cdisp12))))))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci lbucpa "load byte coprocessor" (OPTIONAL_CP_INSN (STALL LOAD) (MACH c5))

     "lbucpa $crn,($rma+),$cdisp10"

     (+ MAJ_15 crn rma (f-sub4 5) (f-ext4 #xC) (f-ext62 #x0) cdisp10)

     (sequence ()

               (c-call "check_option_cp" pc)

               (set crn (zext SI (mem QI rma)))

               (set rma (add rma cdisp10)))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci lhucpa "load half-word coprocessor" (OPTIONAL_CP_INSN (STALL LOAD) (MACH c5))

     "lhucpa $crn,($rma+),$cdisp10a2"

     (+ MAJ_15 crn rma (f-sub4 5) (f-ext4 #xD) (f-ext62 #x0) cdisp10a2)

     (sequence ()

               (c-call "check_option_cp" pc)

               (set crn (zext SI (mem HI (and rma (inv SI 1)))))

               (set rma (add rma (ext SI cdisp10a2))))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci lbucpm0 "lbucpm0" (OPTIONAL_CP_INSN (MACH c5))

     "lbucpm0 $crn,($rma+),$cdisp10"

     (+ MAJ_15 crn rma (f-sub4 5) (f-ext4 #xc) (f-ext62 #x2) cdisp10)

     (sequence ()

               (c-call "check_option_cp" pc)

               (set crn (zext SI (mem QI rma)))

               (set rma (mod0 cdisp10)))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci lhucpm0 "lhucpm0" (OPTIONAL_CP_INSN (MACH c5))

     "lhucpm0 $crn,($rma+),$cdisp10a2"

     (+ MAJ_15 crn rma (f-sub4 5) (f-ext4 #xd) (f-ext62 #x2) cdisp10a2)

     (sequence ()

               (c-call "check_option_cp" pc)

               (set crn (zext SI (mem HI (and rma (inv SI 1)))))

               (set rma (mod0 cdisp10a2)))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci lbucpm1 "lbucpm1" (OPTIONAL_CP_INSN (MACH c5))

     "lbucpm1 $crn,($rma+),$cdisp10"

     (+ MAJ_15 crn rma (f-sub4 5) (f-ext4 #xc) (f-ext62 #x3) cdisp10)

     (sequence ()

               (c-call "check_option_cp" pc)

               (set crn (zext SI (mem QI rma)))

               (set rma (mod1 cdisp10)))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci lhucpm1 "lhucpm1" (OPTIONAL_CP_INSN (MACH c5))

     "lhucpm1 $crn,($rma+),$cdisp10a2"

     (+ MAJ_15 crn rma (f-sub4 5) (f-ext4 #xd) (f-ext62 #x3) cdisp10a2)

     (sequence ()

               (c-call "check_option_cp" pc)

               (set crn (zext SI (mem HI (and rma (inv SI 1)))))

               (set rma (mod1 cdisp10a2)))

     ((mep (unit u-use-gpr (in usereg rma))

           (unit u-exec))))

(dnci uci "uci" ((MACH c5) VOLATILE)

     "uci $rn,$rm,$uimm16"

     (+ MAJ_15 rn rm (f-sub4 2) simm16)

     (set rn (c-call SI "do_UCI" rn rm (zext SI uimm16) pc))

     ((mep (unit u-use-gpr (in usereg rm))

           (unit u-use-gpr (in usereg rn))

           (unit u-exec))))

(dnf f-c5-rnm     "register n/m"              (all-mep-isas)    4  8)

(dnf f-c5-rm      "register m"              (all-mep-isas)    8  4)

(df  f-c5-16u16  "general 16-bit u-val"    (all-mep-isas) 16 16 UINT #f #f)

(dnmf f-c5-rmuimm20 "20-bit immediate in Rm/Imm16" (all-mep-isas) UINT

      (f-c5-rm f-c5-16u16)

      (sequence () ; insert

                (set (ifield f-c5-rm)    (srl (ifield f-c5-rmuimm20) 16))

                (set (ifield f-c5-16u16) (and (ifield f-c5-rmuimm20) #xffff))

                )

      (sequence () ; extract

                (set (ifield f-c5-rmuimm20) (or (ifield f-c5-16u16)

                                                (sll (ifield f-c5-rm) 16)))

                )

      )

(dnop c5rmuimm20 "20-bit immediate in rm and imm16" (all-mep-core-isas) h-uint f-c5-rmuimm20)

(dnmf f-c5-rnmuimm24 "24-bit immediate in Rm/Imm16" (all-mep-isas) UINT

      (f-c5-rnm f-c5-16u16)

      (sequence () ; insert

                (set (ifield f-c5-rnm)    (srl (ifield f-c5-rnmuimm24) 16))

                (set (ifield f-c5-16u16) (and (ifield f-c5-rnmuimm24) #xffff))

                )

      (sequence () ; extract

                (set (ifield f-c5-rnmuimm24) (or (ifield f-c5-16u16)

                                                (sll (ifield f-c5-rnm) 16)))

                )

      )

(dnop c5rnmuimm24 "24-bit immediate in rn, rm, and imm16" (all-mep-core-isas) h-uint f-c5-rnmuimm24)

(dnci dsp "dsp" ((MACH c5) VOLATILE)

     "dsp $rn,$rm,$uimm16"

     (+ MAJ_15 rn rm (f-sub4 0) uimm16)

     (set rn (c-call SI "do_DSP" rn rm (zext SI uimm16) pc))

     ((mep (unit u-use-gpr (in usereg rm))

           (unit u-use-gpr (in usereg rn))

           (unit u-exec))))

(dnci dsp0 "dsp0" ((MACH c5) VOLATILE NO-DIS ALIAS)

     "dsp0 $c5rnmuimm24"

     (+ MAJ_15 c5rnmuimm24 (f-sub4 0))

     (c-call VOID "do_DSP" (zext SI c5rnmuimm24) pc)

     ((mep (unit u-exec))))

(dnci dsp1 "dsp1" ((MACH c5) VOLATILE NO-DIS ALIAS)

     "dsp1 $rn,$c5rmuimm20"

     (+ MAJ_15 rn (f-sub4 0) c5rmuimm20)

     (set rn (c-call SI "do_DSP" rn (zext SI c5rmuimm20) pc))

     ((mep (unit u-use-gpr (in usereg rn))

           (unit u-exec))))