; Copyright 2011 Free Software Foundation, Inc.
;
; Contributed by Red Hat Inc;
;
; This file is part of the GNU Binutils.
;
; 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, write to the Free Software
; Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
; MA 02110-1301, USA.
;; This coprocessor definition is being used to verify vliw mode behaviour.
;; This is a mock-up done by Red Hat and is in no way supposed to represent
;; a real coprocessor. The hardware is defined in mep-core.cpu.
; Coprocessor registers
(define-pmacro rh-isa-1 () (ISA ext_cop1_16,ext_cop1_32,ext_cop1_48,ext_cop1_64))
(define-hardware
(name h-cr64-rh-1)
(comment "64-bit coprocessor registers for rh coprocessor for core 1")
(attrs VIRTUAL rh-isa-1)
(type register DI (32))
(set (index newval) (c-call VOID "h_cr64_set" index newval))
(get (index) (c-call DI "h_cr64_get" index))
(indices keyword "$c" (.map -reg-pair (.iota 32)))
)
(define-hardware
(name h-cr-rh-1)
(comment "32-bit coprocessor registers for rh coprocessor for core 1")
(attrs VIRTUAL rh-isa-1)
(type register SI (32))
(set (index newval) (c-call VOID "h_cr64_set" index (ext DI newval)))
(get (index) (trunc SI (c-call DI "h_cr64_get" index)))
(indices keyword "$c" (.map -reg-pair (.iota 32)))
)
(define-hardware
(name h-ccr-rh-1)
(comment "Coprocessor control registers for rh coprocessor for core 1")
(attrs VIRTUAL rh-isa-1)
(type register SI (64))
(set (index newval) (c-call VOID "h_ccr_set" index newval))
(get (index) (c-call DI "h_ccr_get" index))
(indices keyword "" (.map -ccr-reg-pair (.iota 64)))
)
; ifields For 16-bit insns
(dnf f-cphigh4 "High 4 bits" ((ISA ext_cop1_16,ext_cop1_32,ext_cop1_48,ext_cop1_64)) 0 4)
(dnf f-cpcrn "Copro Reg" ((ISA ext_cop1_16,ext_cop1_32,ext_cop1_48,ext_cop1_64)) 4 5)
(dnf f-cpcrm "Copro Reg" ((ISA ext_cop1_16,ext_cop1_32,ext_cop1_48,ext_cop1_64)) 11 5)
(dnf f-uu2 "UU for 16-bit insns" ((ISA ext_cop1_16)) 9 2)
(dnf f-uu3 "UU for 16-bit insns" ((ISA ext_cop1_16)) 9 3)
(dnf f-cprm "Core GPR" ((ISA ext_cop1_16)) 12 4)
; ifields For 32-bit insns (some of the above are used too)
; Notes:
;
; f-alone: A value of 0111 means that the insn can run alone in
; one of the vliw modes.
;
; f-seg32: Together f-seg32 and f-seg32-a allow 64 different 32-bit
; f-seg32-a: insns to be defined.
(dnf f-seg32 "Enumerate 32 bit-insns" ((ISA ext_cop1_32)) 9 3)
(dnf f-alone "Run-alone indicator" ((ISA ext_cop1_16,ext_cop1_32,ext_cop1_64)) 12 4)
(dnf f-seg32-a "Enumerate 32 bit-insns" ((ISA ext_cop1_32)) 21 3)
(dnf f-code8 "8 bit unsigned immediate" ((ISA ext_cop1_32)) 24 8)
(dnf f-cpcrm-32 "Corpocessor Reg" ((ISA ext_cop1_32)) 16 5)
; ifields for 48-bit insns
; Note: Part of f-uu12 can be broken off later to enumerate
; any 48-bit insns that may be added.
(dnf f-uu12 "Unusued 12 bits" ((ISA ext_cop1_48)) 4 12)
(dnf f-code16a "Unsigned immediate" ((ISA ext_cop1_48)) 16 16)
(dnf f-code16b "Unsigned immediate" ((ISA ext_cop1_48,ext_cop1_64)) 32 16)
; ifields for 64-bit insns
(dnf f-uu8 "Unsused 8 bits" ((ISA ext_cop1_64)) 4 8)
(dnf f-uu8a "Unused 13 bits" ((ISA ext_cop1_64)) 16 8)
(dnf f-seg64 "Enumerate 64-bit insns" ((ISA ext_cop1_64)) 24 8)
(dnf f-code16c "Unsigned immediate" ((ISA ext_cop1_64)) 48 16)
(dnf f-cpcrn-64 "Coprocessor Register" ((ISA ext_cop1_64)) 32 5)
(dnf f-cpcrm-64 "Coprocessor Register" ((ISA ext_cop1_64)) 37 4)
(dnf f-code23 "23 Bit Unisgned Immediate" ((ISA ext_cop1_64)) 41 23)
(dnf f-cpccrn-64 "Coprocessor Register" ((ISA ext_cop1_64)) 32 4)
(dnf f-cpccrm-64 "Core GPR" ((ISA ext_cop1_64)) 36 4)
(dnf f-code24 "24 Bit Unisgned Immediate" ((ISA ext_cop1_64)) 40 24)
; Operands for 16-bit insns
(dnop cpcrn "cpcrn" ((ISA ext_cop1_16,ext_cop1_32)) h-cr64-rh-1 f-cpcrn)
(dnop cpcrm "cpcrm" ((ISA ext_cop1_16,ext_cop1_32)) h-cr64-rh-1 f-cpcrm)
(dnop cprm "cprm" ((ISA ext_cop1_16)) h-gpr f-cprm)
; Additional operands for 32-bit insns
(dnop code8 "imm8" ((ISA ext_cop1_32)) h-uint f-code8)
; Operands for 48-bit insns
(dnop code16a "code16a" ((ISA ext_cop1_48)) h-uint f-code16a)
(dnop code16b "code16b" ((ISA ext_cop1_48,ext_cop1_64)) h-uint f-code16b)
; Additional operands for 64-bit insns
(dnop code16c "code16c" ((ISA ext_cop1_64)) h-uint f-code16c)
(dnop cpcrn64 "cpcrn64" ((ISA ext_cop1_64)) h-cr64-rh-1 f-cpcrn-64)
(dnop cpcrm64 "crm64" ((ISA ext_cop1_64)) h-gpr f-cpcrm-64)
(dnop cpccrn64 "cpccrn64" ((ISA ext_cop1_64)) h-ccr-rh-1 f-cpccrn-64)
(dnop cpccrm64 "cpccrm64" ((ISA ext_cop1_64)) h-gpr f-cpccrm-64)
(dnop cpcode23 "cpcode23" ((ISA ext_cop1_64)) h-uint f-code23)
(dnop cpcode24 "cpcode24" ((ISA ext_cop1_64)) h-uint f-code24)
; 16- and 32-bit nops can be defined as normal instructions without
; any problems. nops take no operands, so nops longer than 32
; bits cannot be defined as normal insns since that would result in
; decodable bits beyond cgen's 32-bit boundary. As a result, we
; have to use macros and other real insns to create 48- and 64-bit nops.
;
; In addition, since the names of the nops that will be created as part
; of future insn sets are not known at this time, the assembler needs a
; fixed set of nop names that it can use for automatic nop insertion.
; The idea is that no matter what those insns are called, we don't want
; to have to change the C code in the assemblers vliw grouping validation
; and nop insertion routines. We therefore have to create macros for
; all nops to map the macro names which are known to the assembler to the
; names of the real nop insns.
;
; These emitted insns in these macros will need to be modified when
; new nops are defined in new coprocessor insn sets.
; A real 16-bit nop insn exists
(dnmi cpnop16 "cpnop16"
((ISA ext_cop1_16))
"cpnop16"
(emit cp16nop)
)
; A real 32-bit nop insn exists
(dnmi cpnop32 "cpnop32"
((ISA ext_cop1_32))
"cpnop32"
(emit cp32nop)
)
; There is no 48-bit nop insn so we use a real "dummy" insn to enable the nop.
(dnmi cpnop48 "cpnop48"
((ISA ext_cop1_48))
"cpnop48"
(emit cpf1nop (code16a 0) (code16b 0))
)
; There is no 64-bit nop insn so we use a real "dummy" insn to enable the nop.
(dnmi cpnop64 "cpnop64"
((ISA ext_cop1_64))
"cpnop64"
(emit cpf3nop (code16b 0) (code16c 0))
)
(define-pmacro (dncp116i xname xcomment xattrs xsyntax xformat xsemantics xtiming) (dni-isa xname xcomment xattrs xsyntax xformat xsemantics xtiming ext_cop1_16))
(define-pmacro (dncp132i xname xcomment xattrs xsyntax xformat xsemantics xtiming) (dni-isa xname xcomment xattrs xsyntax xformat xsemantics xtiming ext_cop1_32))
(define-pmacro (dncp148i xname xcomment xattrs xsyntax xformat xsemantics xtiming) (dni-isa xname xcomment xattrs xsyntax xformat xsemantics xtiming ext_cop1_48))
(define-pmacro (dncp164i xname xcomment xattrs xsyntax xformat xsemantics xtiming) (dni-isa xname xcomment xattrs xsyntax xformat xsemantics xtiming ext_cop1_64))
; 16-Bit Insns
(dncp116i movcp16 "16-bit coprocessor move insn"
(VLIW64_NO_MATCHING_NOP)
"movcp16 $cpcrn,$cpcrm"
(+ (f-cphigh4 1) cpcrn (f-uu2 0) cpcrm)
(set cpcrn cpcrm)
()
)
(dncp116i movcp16a "16-bit coprocessor move insn"
(VLIW64_NO_MATCHING_NOP)
"movcp16a $cpcrn,$cprm"
(+ (f-cphigh4 2) cpcrn (f-uu3 0) cprm)
(set cpcrn (zext DI cprm))
()
)
(dncp116i movcp16b "16-bit coprocessor move insn"
(VLIW64_NO_MATCHING_NOP)
"movcp16b $cprm,$cpcrn"
(+ (f-cphigh4 3) cpcrn (f-uu3 0) cprm)
(set cprm (subword SI cpcrn 1))
()
)
(dncp116i cp16nop "16-bit coprocessor nop"
(VLIW64_NO_MATCHING_NOP)
"cp16nop"
(+ (f-cphigh4 0) (f-cpcrn 0) (f-uu2 0) (f-cpcrm 0))
(unimp "cp16nop")
()
)
; 32-Bit Insns
(dncp132i cp32nop "32-bit coprocessor nop"
(VLIW64_NO_MATCHING_NOP)
"cp32nop"
(+ (f-cphigh4 #xf ) (f-cpcrn 0) (f-seg32 0) (f-alone #x7)
(f-cpcrm-32 0) (f-seg32-a 0) (f-code8 0))
(unimp "cpnop32")
()
)
(dncp132i cpf2 "General 32-bit insn for compatibility with toshiba's tests "
(VLIW64_NO_MATCHING_NOP)
"cpf2 $code8"
(+ (f-cphigh4 #xf ) (f-cpcrn 0) (f-seg32 0) (f-alone #x7)
(f-cpcrm-32 0) (f-seg32-a 1) code8)
(unimp "cpf2")
()
)
; 48-Bit Insns
(dncp148i cpf1 "48-bit coprocessor helper insn"
()
"cpf1 $code16a,$code16b"
(+ (f-cphigh4 4) (f-uu12 0) code16a code16b)
(sequence ((HI result))
(if (eq code16a 0)
(set pc (c-call USI "cop_exception" pc))
; Set branch condition flags to value of code16a[0:3]
; Branch condition flags do not exist yet.
(nop)
)
)
()
)
(dncp148i cpf1nop "48-bit coprocessor nop insn"
()
"cpf1nop $code16a,$code16b"
(+ (f-cphigh4 5) (f-uu12 0) code16a code16b)
(sequence ((HI result))
(set result (add code16a code16b))
)
()
)
; 64-Bit Insns
(dncp164i cpf3 "64-bit coprocessor helper insn"
()
"cpf3 $code16b,$code16c"
(+ (f-cphigh4 #xf) (f-uu8 0) (f-alone 7) (f-uu8a 0)
(f-seg64 0) code16b code16c)
(sequence ((HI result))
(set result (add code16b code16c))
)
()
)
(dncp164i cpf3nop "64-bit coprocessor helper insn"
()
"cpf3nop $code16b,$code16c"
(+ (f-cphigh4 #xf) (f-uu8 0) (f-alone 7) (f-uu8a 0)
(f-seg64 7) code16b code16c)
(sequence ((HI result))
(set result (add code16b code16c))
)
()
)
(dncp164i cmov64a "64-bit cmov"
()
"cmov64a $cpcrn64,$cpcrm64,$cpcode23"
(+ (f-cphigh4 #xf ) (f-uu8 0) (f-alone 7) (f-uu8a 0)
(f-seg64 1) cpcrn64 cpcrm64 cpcode23)
(sequence ((SI dummy))
(set dummy cpcode23)
(set cpcrn64 (zext DI cpcrm64)))
()
)
(dncp164i cmov64b "64-bit cmov"
()
"cmov64b $cpcrm64,$cpcrn64,$cpcode23"
(+ (f-cphigh4 #xf ) (f-uu8 0) (f-alone 7) (f-uu8a 0)
(f-seg64 2) cpcrn64 cpcrm64 cpcode23)
(sequence ((SI dummy))
(set dummy cpcode23)
(set cpcrm64 (subword SI cpcrn64 1)))
()
)
(dncp164i cmovh64a "64-bit cmovh"
()
"cmovh64a $cpcrn64,$cpcrm64,$cpcode23"
(+ (f-cphigh4 #xf ) (f-uu8 0) (f-alone 7) (f-uu8a 0)
(f-seg64 3) cpcrn64 cpcrm64 cpcode23)
(sequence ((SI dummy))
(set dummy cpcode23)
(set cpcrn64 (or (sll (zext DI cpcrm64) 32) (zext DI (subword SI cpcrn64 1)))))
()
)
(dncp164i cmovh64b "64-bit cmovh"
()
"cmovh64b $cpcrm64,$cpcrn64,$cpcode23"
(+ (f-cphigh4 #xf ) (f-uu8 0) (f-alone 7) (f-uu8a 0)
(f-seg64 4) cpcrn64 cpcrm64 cpcode23)
(sequence ((SI dummy))
(set dummy cpcode23)
(set cpcrm64 (subword SI cpcrn64 0)))
()
)
(dncp164i cmovc64a "64-bit cmovc"
()
"cmovc64a $cpccrn64,$cpccrm64,$cpcode24"
(+ (f-cphigh4 #xf ) (f-uu8 0) (f-alone 7) (f-uu8a 0)
(f-seg64 5) cpccrn64 cpccrm64 cpcode24)
(sequence ((SI dummy))
(set dummy cpcode24)
(set cpccrn64 cpccrm64))
()
)
(dncp164i cmovc64b "64-bit cmovc"
()
"cmovc64b $cpccrm64,$cpccrn64,$cpcode24"
(+ (f-cphigh4 #xf ) (f-uu8 0) (f-alone 7) (f-uu8a 0)
(f-seg64 6) cpccrn64 cpccrm64 cpcode24)
(sequence ((SI dummy))
(set dummy cpcode24)
(set cpccrm64 cpccrn64))
()
)