--- /dev/null
+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- S Y S T E M . A U X _ D E C --
+-- --
+-- B o d y --
+-- --
+-- Copyright (C) 1992-2010, Free Software Foundation, Inc. --
+-- --
+-- GNAT is free software; you can redistribute it and/Or modify it under --
+-- terms of the GNU General Public License as published by the Free Soft- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
+-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
+-- --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+pragma Style_Checks (All_Checks);
+-- Turn off alpha ordering check on subprograms, this unit is laid
+-- out to correspond to the declarations in the DEC 83 System unit.
+
+with System.Machine_Code; use System.Machine_Code;
+package body System.Aux_DEC is
+
+ -----------------------------------
+ -- Operations on Largest_Integer --
+ -----------------------------------
+
+ -- It would be nice to replace these with intrinsics, but that does
+ -- not work yet (the back end would be ok, but GNAT itself objects)
+
+ type LIU is mod 2 ** Largest_Integer'Size;
+ -- Unsigned type of same length as Largest_Integer
+
+ function To_LI is new Ada.Unchecked_Conversion (LIU, Largest_Integer);
+ function From_LI is new Ada.Unchecked_Conversion (Largest_Integer, LIU);
+
+ function "not" (Left : Largest_Integer) return Largest_Integer is
+ begin
+ return To_LI (not From_LI (Left));
+ end "not";
+
+ function "and" (Left, Right : Largest_Integer) return Largest_Integer is
+ begin
+ return To_LI (From_LI (Left) and From_LI (Right));
+ end "and";
+
+ function "or" (Left, Right : Largest_Integer) return Largest_Integer is
+ begin
+ return To_LI (From_LI (Left) or From_LI (Right));
+ end "or";
+
+ function "xor" (Left, Right : Largest_Integer) return Largest_Integer is
+ begin
+ return To_LI (From_LI (Left) xor From_LI (Right));
+ end "xor";
+
+ --------------------------------------
+ -- Arithmetic Operations on Address --
+ --------------------------------------
+
+ -- It would be nice to replace these with intrinsics, but that does
+ -- not work yet (the back end would be ok, but GNAT itself objects)
+
+ Asiz : constant Integer := Integer (Address'Size) - 1;
+
+ type SA is range -(2 ** Asiz) .. 2 ** Asiz - 1;
+ -- Signed type of same size as Address
+
+ function To_A is new Ada.Unchecked_Conversion (SA, Address);
+ function From_A is new Ada.Unchecked_Conversion (Address, SA);
+
+ function "+" (Left : Address; Right : Integer) return Address is
+ begin
+ return To_A (From_A (Left) + SA (Right));
+ end "+";
+
+ function "+" (Left : Integer; Right : Address) return Address is
+ begin
+ return To_A (SA (Left) + From_A (Right));
+ end "+";
+
+ function "-" (Left : Address; Right : Address) return Integer is
+ pragma Unsuppress (All_Checks);
+ -- Because this can raise Constraint_Error for 64-bit addresses
+ begin
+ return Integer (From_A (Left) - From_A (Right));
+ end "-";
+
+ function "-" (Left : Address; Right : Integer) return Address is
+ begin
+ return To_A (From_A (Left) - SA (Right));
+ end "-";
+
+ ------------------------
+ -- Fetch_From_Address --
+ ------------------------
+
+ function Fetch_From_Address (A : Address) return Target is
+ type T_Ptr is access all Target;
+ function To_T_Ptr is new Ada.Unchecked_Conversion (Address, T_Ptr);
+ Ptr : constant T_Ptr := To_T_Ptr (A);
+ begin
+ return Ptr.all;
+ end Fetch_From_Address;
+
+ -----------------------
+ -- Assign_To_Address --
+ -----------------------
+
+ procedure Assign_To_Address (A : Address; T : Target) is
+ type T_Ptr is access all Target;
+ function To_T_Ptr is new Ada.Unchecked_Conversion (Address, T_Ptr);
+ Ptr : constant T_Ptr := To_T_Ptr (A);
+ begin
+ Ptr.all := T;
+ end Assign_To_Address;
+
+ ---------------------------------
+ -- Operations on Unsigned_Byte --
+ ---------------------------------
+
+ -- It would be nice to replace these with intrinsics, but that does
+ -- not work yet (the back end would be ok, but GNAT itself objects)
+
+ type BU is mod 2 ** Unsigned_Byte'Size;
+ -- Unsigned type of same length as Unsigned_Byte
+
+ function To_B is new Ada.Unchecked_Conversion (BU, Unsigned_Byte);
+ function From_B is new Ada.Unchecked_Conversion (Unsigned_Byte, BU);
+
+ function "not" (Left : Unsigned_Byte) return Unsigned_Byte is
+ begin
+ return To_B (not From_B (Left));
+ end "not";
+
+ function "and" (Left, Right : Unsigned_Byte) return Unsigned_Byte is
+ begin
+ return To_B (From_B (Left) and From_B (Right));
+ end "and";
+
+ function "or" (Left, Right : Unsigned_Byte) return Unsigned_Byte is
+ begin
+ return To_B (From_B (Left) or From_B (Right));
+ end "or";
+
+ function "xor" (Left, Right : Unsigned_Byte) return Unsigned_Byte is
+ begin
+ return To_B (From_B (Left) xor From_B (Right));
+ end "xor";
+
+ ---------------------------------
+ -- Operations on Unsigned_Word --
+ ---------------------------------
+
+ -- It would be nice to replace these with intrinsics, but that does
+ -- not work yet (the back end would be ok, but GNAT itself objects)
+
+ type WU is mod 2 ** Unsigned_Word'Size;
+ -- Unsigned type of same length as Unsigned_Word
+
+ function To_W is new Ada.Unchecked_Conversion (WU, Unsigned_Word);
+ function From_W is new Ada.Unchecked_Conversion (Unsigned_Word, WU);
+
+ function "not" (Left : Unsigned_Word) return Unsigned_Word is
+ begin
+ return To_W (not From_W (Left));
+ end "not";
+
+ function "and" (Left, Right : Unsigned_Word) return Unsigned_Word is
+ begin
+ return To_W (From_W (Left) and From_W (Right));
+ end "and";
+
+ function "or" (Left, Right : Unsigned_Word) return Unsigned_Word is
+ begin
+ return To_W (From_W (Left) or From_W (Right));
+ end "or";
+
+ function "xor" (Left, Right : Unsigned_Word) return Unsigned_Word is
+ begin
+ return To_W (From_W (Left) xor From_W (Right));
+ end "xor";
+
+ -------------------------------------
+ -- Operations on Unsigned_Longword --
+ -------------------------------------
+
+ -- It would be nice to replace these with intrinsics, but that does
+ -- not work yet (the back end would be ok, but GNAT itself objects)
+
+ type LWU is mod 2 ** Unsigned_Longword'Size;
+ -- Unsigned type of same length as Unsigned_Longword
+
+ function To_LW is new Ada.Unchecked_Conversion (LWU, Unsigned_Longword);
+ function From_LW is new Ada.Unchecked_Conversion (Unsigned_Longword, LWU);
+
+ function "not" (Left : Unsigned_Longword) return Unsigned_Longword is
+ begin
+ return To_LW (not From_LW (Left));
+ end "not";
+
+ function "and" (Left, Right : Unsigned_Longword) return Unsigned_Longword is
+ begin
+ return To_LW (From_LW (Left) and From_LW (Right));
+ end "and";
+
+ function "or" (Left, Right : Unsigned_Longword) return Unsigned_Longword is
+ begin
+ return To_LW (From_LW (Left) or From_LW (Right));
+ end "or";
+
+ function "xor" (Left, Right : Unsigned_Longword) return Unsigned_Longword is
+ begin
+ return To_LW (From_LW (Left) xor From_LW (Right));
+ end "xor";
+
+ -------------------------------
+ -- Operations on Unsigned_32 --
+ -------------------------------
+
+ -- It would be nice to replace these with intrinsics, but that does
+ -- not work yet (the back end would be ok, but GNAT itself objects)
+
+ type U32 is mod 2 ** Unsigned_32'Size;
+ -- Unsigned type of same length as Unsigned_32
+
+ function To_U32 is new Ada.Unchecked_Conversion (U32, Unsigned_32);
+ function From_U32 is new Ada.Unchecked_Conversion (Unsigned_32, U32);
+
+ function "not" (Left : Unsigned_32) return Unsigned_32 is
+ begin
+ return To_U32 (not From_U32 (Left));
+ end "not";
+
+ function "and" (Left, Right : Unsigned_32) return Unsigned_32 is
+ begin
+ return To_U32 (From_U32 (Left) and From_U32 (Right));
+ end "and";
+
+ function "or" (Left, Right : Unsigned_32) return Unsigned_32 is
+ begin
+ return To_U32 (From_U32 (Left) or From_U32 (Right));
+ end "or";
+
+ function "xor" (Left, Right : Unsigned_32) return Unsigned_32 is
+ begin
+ return To_U32 (From_U32 (Left) xor From_U32 (Right));
+ end "xor";
+
+ -------------------------------------
+ -- Operations on Unsigned_Quadword --
+ -------------------------------------
+
+ -- It would be nice to replace these with intrinsics, but that does
+ -- not work yet (the back end would be ok, but GNAT itself objects)
+
+ type QWU is mod 2 ** 64; -- 64 = Unsigned_Quadword'Size
+ -- Unsigned type of same length as Unsigned_Quadword
+
+ function To_QW is new Ada.Unchecked_Conversion (QWU, Unsigned_Quadword);
+ function From_QW is new Ada.Unchecked_Conversion (Unsigned_Quadword, QWU);
+
+ function "not" (Left : Unsigned_Quadword) return Unsigned_Quadword is
+ begin
+ return To_QW (not From_QW (Left));
+ end "not";
+
+ function "and" (Left, Right : Unsigned_Quadword) return Unsigned_Quadword is
+ begin
+ return To_QW (From_QW (Left) and From_QW (Right));
+ end "and";
+
+ function "or" (Left, Right : Unsigned_Quadword) return Unsigned_Quadword is
+ begin
+ return To_QW (From_QW (Left) or From_QW (Right));
+ end "or";
+
+ function "xor" (Left, Right : Unsigned_Quadword) return Unsigned_Quadword is
+ begin
+ return To_QW (From_QW (Left) xor From_QW (Right));
+ end "xor";
+
+ -----------------------
+ -- Clear_Interlocked --
+ -----------------------
+
+ procedure Clear_Interlocked
+ (Bit : in out Boolean;
+ Old_Value : out Boolean)
+ is
+ use ASCII;
+ Clr_Bit : Boolean := Bit;
+ Old_Bit : Boolean;
+ begin
+ System.Machine_Code.Asm
+ (
+ "lda $16, %2" & LF & HT &
+ "mb" & LF & HT &
+ "sll $16, 3, $17 " & LF & HT &
+ "bis $31, 1, $1" & LF & HT &
+ "and $17, 63, $18" & LF & HT &
+ "bic $17, 63, $17" & LF & HT &
+ "sra $17, 3, $17" & LF & HT &
+ "bis $31, 1, %1" & LF & HT &
+ "sll %1, $18, $18" & LF & HT &
+ "1:" & LF & HT &
+ "ldq_l $1, 0($17)" & LF & HT &
+ "and $1, $18, %1" & LF & HT &
+ "bic $1, $18, $1" & LF & HT &
+ "stq_c $1, 0($17)" & LF & HT &
+ "cmpeq %1, 0, %1" & LF & HT &
+ "beq $1, 1b" & LF & HT &
+ "mb" & LF & HT &
+ "xor %1, 1, %1" & LF & HT &
+ "trapb",
+ Outputs => (Boolean'Asm_Output ("=m", Clr_Bit),
+ Boolean'Asm_Output ("=r", Old_Bit)),
+ Inputs => Boolean'Asm_Input ("m", Clr_Bit),
+ Clobber => "$1, $16, $17, $18",
+ Volatile => True);
+
+ Bit := Clr_Bit;
+ Old_Value := Old_Bit;
+ end Clear_Interlocked;
+
+ procedure Clear_Interlocked
+ (Bit : in out Boolean;
+ Old_Value : out Boolean;
+ Retry_Count : Natural;
+ Success_Flag : out Boolean)
+ is
+ use ASCII;
+ Clr_Bit : Boolean := Bit;
+ Succ, Old_Bit : Boolean;
+ begin
+ System.Machine_Code.Asm
+ (
+ "lda $16, %3" & LF & HT &
+ "mb" & LF & HT &
+ "sll $16, 3, $18 " & LF & HT &
+ "bis $31, 1, %1" & LF & HT &
+ "and $18, 63, $19" & LF & HT &
+ "bic $18, 63, $18" & LF & HT &
+ "sra $18, 3, $18" & LF & HT &
+ "bis $31, %4, $17" & LF & HT &
+ "sll %1, $19, $19" & LF & HT &
+ "1:" & LF & HT &
+ "ldq_l %2, 0($18)" & LF & HT &
+ "and %2, $19, %1" & LF & HT &
+ "bic %2, $19, %2" & LF & HT &
+ "stq_c %2, 0($18)" & LF & HT &
+ "beq %2, 2f" & LF & HT &
+ "cmpeq %1, 0, %1" & LF & HT &
+ "br 3f" & LF & HT &
+ "2:" & LF & HT &
+ "subq $17, 1, $17" & LF & HT &
+ "bgt $17, 1b" & LF & HT &
+ "3:" & LF & HT &
+ "mb" & LF & HT &
+ "xor %1, 1, %1" & LF & HT &
+ "trapb",
+ Outputs => (Boolean'Asm_Output ("=m", Clr_Bit),
+ Boolean'Asm_Output ("=r", Old_Bit),
+ Boolean'Asm_Output ("=r", Succ)),
+ Inputs => (Boolean'Asm_Input ("m", Clr_Bit),
+ Natural'Asm_Input ("rJ", Retry_Count)),
+ Clobber => "$16, $17, $18, $19",
+ Volatile => True);
+
+ Bit := Clr_Bit;
+ Old_Value := Old_Bit;
+ Success_Flag := Succ;
+ end Clear_Interlocked;
+
+ ---------------------
+ -- Set_Interlocked --
+ ---------------------
+
+ procedure Set_Interlocked
+ (Bit : in out Boolean;
+ Old_Value : out Boolean)
+ is
+ use ASCII;
+ Set_Bit : Boolean := Bit;
+ Old_Bit : Boolean;
+ begin
+ System.Machine_Code.Asm
+ (
+ "lda $16, %2" & LF & HT &
+ "sll $16, 3, $17 " & LF & HT &
+ "bis $31, 1, $1" & LF & HT &
+ "and $17, 63, $18" & LF & HT &
+ "mb" & LF & HT &
+ "bic $17, 63, $17" & LF & HT &
+ "sra $17, 3, $17" & LF & HT &
+ "bis $31, 1, %1" & LF & HT &
+ "sll %1, $18, $18" & LF & HT &
+ "1:" & LF & HT &
+ "ldq_l $1, 0($17)" & LF & HT &
+ "and $1, $18, %1" & LF & HT &
+ "bis $1, $18, $1" & LF & HT &
+ "stq_c $1, 0($17)" & LF & HT &
+ "cmovne %1, 1, %1" & LF & HT &
+ "beq $1, 1b" & LF & HT &
+ "mb" & LF & HT &
+ "trapb",
+ Outputs => (Boolean'Asm_Output ("=m", Set_Bit),
+ Boolean'Asm_Output ("=r", Old_Bit)),
+ Inputs => Boolean'Asm_Input ("m", Set_Bit),
+ Clobber => "$1, $16, $17, $18",
+ Volatile => True);
+
+ Bit := Set_Bit;
+ Old_Value := Old_Bit;
+ end Set_Interlocked;
+
+ procedure Set_Interlocked
+ (Bit : in out Boolean;
+ Old_Value : out Boolean;
+ Retry_Count : Natural;
+ Success_Flag : out Boolean)
+ is
+ use ASCII;
+ Set_Bit : Boolean := Bit;
+ Succ, Old_Bit : Boolean;
+ begin
+ System.Machine_Code.Asm
+ (
+ "lda $16, %3" & LF & HT &
+ "mb" & LF & HT &
+ "sll $16, 3, $18 " & LF & HT &
+ "bis $31, 1, %1" & LF & HT &
+ "and $18, 63, $19" & LF & HT &
+ "bic $18, 63, $18" & LF & HT &
+ "sra $18, 3, $18" & LF & HT &
+ "bis $31, %4, $17" & LF & HT &
+ "sll %1, $19, $19" & LF & HT &
+ "1:" & LF & HT &
+ "ldq_l %2, 0($18)" & LF & HT &
+ "and %2, $19, %1" & LF & HT &
+ "bis %2, $19, %2" & LF & HT &
+ "stq_c %2, 0($18)" & LF & HT &
+ "beq %2, 2f" & LF & HT &
+ "cmovne %1, 1, %1" & LF & HT &
+ "br 3f" & LF & HT &
+ "2:" & LF & HT &
+ "subq $17, 1, $17" & LF & HT &
+ "bgt $17, 1b" & LF & HT &
+ "3:" & LF & HT &
+ "mb" & LF & HT &
+ "trapb",
+ Outputs => (Boolean'Asm_Output ("=m", Set_Bit),
+ Boolean'Asm_Output ("=r", Old_Bit),
+ Boolean'Asm_Output ("=r", Succ)),
+ Inputs => (Boolean'Asm_Input ("m", Set_Bit),
+ Natural'Asm_Input ("rJ", Retry_Count)),
+ Clobber => "$16, $17, $18, $19",
+ Volatile => True);
+
+ Bit := Set_Bit;
+ Old_Value := Old_Bit;
+ Success_Flag := Succ;
+ end Set_Interlocked;
+
+ ---------------------
+ -- Add_Interlocked --
+ ---------------------
+
+ procedure Add_Interlocked
+ (Addend : Short_Integer;
+ Augend : in out Aligned_Word;
+ Sign : out Integer)
+ is
+ use ASCII;
+ Overflowed : Boolean := False;
+ begin
+ System.Machine_Code.Asm
+ (
+ "lda $18, %0" & LF & HT &
+ "bic $18, 6, $21" & LF & HT &
+ "mb" & LF & HT &
+ "1:" & LF & HT &
+ "ldq_l $0, 0($21)" & LF & HT &
+ "extwl $0, $18, $19" & LF & HT &
+ "mskwl $0, $18, $0" & LF & HT &
+ "addq $19, %3, $20" & LF & HT &
+ "inswl $20, $18, $17" & LF & HT &
+ "xor $19, %3, $19" & LF & HT &
+ "bis $17, $0, $0" & LF & HT &
+ "stq_c $0, 0($21)" & LF & HT &
+ "beq $0, 1b" & LF & HT &
+ "srl $20, 16, $0" & LF & HT &
+ "mb" & LF & HT &
+ "srl $20, 12, $21" & LF & HT &
+ "zapnot $20, 3, $20" & LF & HT &
+ "and $0, 1, $0" & LF & HT &
+ "and $21, 8, $21" & LF & HT &
+ "bis $21, $0, $0" & LF & HT &
+ "cmpeq $20, 0, $21" & LF & HT &
+ "xor $20, 2, $20" & LF & HT &
+ "sll $21, 2, $21" & LF & HT &
+ "bis $21, $0, $0" & LF & HT &
+ "bic $20, $19, $21" & LF & HT &
+ "srl $21, 14, $21" & LF & HT &
+ "and $21, 2, $21" & LF & HT &
+ "bis $21, $0, $0" & LF & HT &
+ "and $0, 2, %2" & LF & HT &
+ "bne %2, 2f" & LF & HT &
+ "and $0, 4, %1" & LF & HT &
+ "cmpeq %1, 0, %1" & LF & HT &
+ "and $0, 8, $0" & LF & HT &
+ "lda $16, -1" & LF & HT &
+ "cmovne $0, $16, %1" & LF & HT &
+ "2:",
+ Outputs => (Aligned_Word'Asm_Output ("=m", Augend),
+ Integer'Asm_Output ("=r", Sign),
+ Boolean'Asm_Output ("=r", Overflowed)),
+ Inputs => (Short_Integer'Asm_Input ("r", Addend),
+ Aligned_Word'Asm_Input ("m", Augend)),
+ Clobber => "$0, $1, $16, $17, $18, $19, $20, $21",
+ Volatile => True);
+
+ if Overflowed then
+ raise Constraint_Error;
+ end if;
+ end Add_Interlocked;
+
+ ----------------
+ -- Add_Atomic --
+ ----------------
+
+ procedure Add_Atomic
+ (To : in out Aligned_Integer;
+ Amount : Integer)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "mb" & LF & HT &
+ "1:" & LF & HT &
+ "ldl_l $1, %0" & LF & HT &
+ "addl $1, %2, $0" & LF & HT &
+ "stl_c $0, %1" & LF & HT &
+ "beq $0, 1b" & LF & HT &
+ "mb",
+ Outputs => Aligned_Integer'Asm_Output ("=m", To),
+ Inputs => (Aligned_Integer'Asm_Input ("m", To),
+ Integer'Asm_Input ("rJ", Amount)),
+ Clobber => "$0, $1",
+ Volatile => True);
+ end Add_Atomic;
+
+ procedure Add_Atomic
+ (To : in out Aligned_Integer;
+ Amount : Integer;
+ Retry_Count : Natural;
+ Old_Value : out Integer;
+ Success_Flag : out Boolean)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "mb" & LF & HT &
+ "bis $31, %5, $17" & LF & HT &
+ "1:" & LF & HT &
+ "ldl_l $1, %0" & LF & HT &
+ "addl $1, %4, $0" & LF & HT &
+ "stl_c $0, %3" & LF & HT &
+ "beq $0, 2f" & LF & HT &
+ "3:" & LF & HT &
+ "mb" & LF & HT &
+ "stq $0, %2" & LF & HT &
+ "stl $1, %1" & LF & HT &
+ "br 4f" & LF & HT &
+ "2:" & LF & HT &
+ "subq $17, 1, $17" & LF & HT &
+ "bgt $17, 1b" & LF & HT &
+ "br 3b" & LF & HT &
+ "4:",
+ Outputs => (Aligned_Integer'Asm_Output ("=m", To),
+ Integer'Asm_Output ("=m", Old_Value),
+ Boolean'Asm_Output ("=m", Success_Flag)),
+ Inputs => (Aligned_Integer'Asm_Input ("m", To),
+ Integer'Asm_Input ("rJ", Amount),
+ Natural'Asm_Input ("rJ", Retry_Count)),
+ Clobber => "$0, $1, $17",
+ Volatile => True);
+ end Add_Atomic;
+
+ procedure Add_Atomic
+ (To : in out Aligned_Long_Integer;
+ Amount : Long_Integer)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "mb" & LF & HT &
+ "1:" & LF & HT &
+ "ldq_l $1, %0" & LF & HT &
+ "addq $1, %2, $0" & LF & HT &
+ "stq_c $0, %1" & LF & HT &
+ "beq $0, 1b" & LF & HT &
+ "mb",
+ Outputs => Aligned_Long_Integer'Asm_Output ("=m", To),
+ Inputs => (Aligned_Long_Integer'Asm_Input ("m", To),
+ Long_Integer'Asm_Input ("rJ", Amount)),
+ Clobber => "$0, $1",
+ Volatile => True);
+ end Add_Atomic;
+
+ procedure Add_Atomic
+ (To : in out Aligned_Long_Integer;
+ Amount : Long_Integer;
+ Retry_Count : Natural;
+ Old_Value : out Long_Integer;
+ Success_Flag : out Boolean)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "mb" & LF & HT &
+ "bis $31, %5, $17" & LF & HT &
+ "1:" & LF & HT &
+ "ldq_l $1, %0" & LF & HT &
+ "addq $1, %4, $0" & LF & HT &
+ "stq_c $0, %3" & LF & HT &
+ "beq $0, 2f" & LF & HT &
+ "3:" & LF & HT &
+ "mb" & LF & HT &
+ "stq $0, %2" & LF & HT &
+ "stq $1, %1" & LF & HT &
+ "br 4f" & LF & HT &
+ "2:" & LF & HT &
+ "subq $17, 1, $17" & LF & HT &
+ "bgt $17, 1b" & LF & HT &
+ "br 3b" & LF & HT &
+ "4:",
+ Outputs => (Aligned_Long_Integer'Asm_Output ("=m", To),
+ Long_Integer'Asm_Output ("=m", Old_Value),
+ Boolean'Asm_Output ("=m", Success_Flag)),
+ Inputs => (Aligned_Long_Integer'Asm_Input ("m", To),
+ Long_Integer'Asm_Input ("rJ", Amount),
+ Natural'Asm_Input ("rJ", Retry_Count)),
+ Clobber => "$0, $1, $17",
+ Volatile => True);
+ end Add_Atomic;
+
+ ----------------
+ -- And_Atomic --
+ ----------------
+
+ procedure And_Atomic
+ (To : in out Aligned_Integer;
+ From : Integer)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "mb" & LF & HT &
+ "1:" & LF & HT &
+ "ldl_l $1, %0" & LF & HT &
+ "and $1, %2, $0" & LF & HT &
+ "stl_c $0, %1" & LF & HT &
+ "beq $0, 1b" & LF & HT &
+ "mb",
+ Outputs => Aligned_Integer'Asm_Output ("=m", To),
+ Inputs => (Aligned_Integer'Asm_Input ("m", To),
+ Integer'Asm_Input ("rJ", From)),
+ Clobber => "$0, $1",
+ Volatile => True);
+ end And_Atomic;
+
+ procedure And_Atomic
+ (To : in out Aligned_Integer;
+ From : Integer;
+ Retry_Count : Natural;
+ Old_Value : out Integer;
+ Success_Flag : out Boolean)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "mb" & LF & HT &
+ "bis $31, %5, $17" & LF & HT &
+ "1:" & LF & HT &
+ "ldl_l $1, %0" & LF & HT &
+ "and $1, %4, $0" & LF & HT &
+ "stl_c $0, %3" & LF & HT &
+ "beq $0, 2f" & LF & HT &
+ "3:" & LF & HT &
+ "mb" & LF & HT &
+ "stq $0, %2" & LF & HT &
+ "stl $1, %1" & LF & HT &
+ "br 4f" & LF & HT &
+ "2:" & LF & HT &
+ "subq $17, 1, $17" & LF & HT &
+ "bgt $17, 1b" & LF & HT &
+ "br 3b" & LF & HT &
+ "4:",
+ Outputs => (Aligned_Integer'Asm_Output ("=m", To),
+ Integer'Asm_Output ("=m", Old_Value),
+ Boolean'Asm_Output ("=m", Success_Flag)),
+ Inputs => (Aligned_Integer'Asm_Input ("m", To),
+ Integer'Asm_Input ("rJ", From),
+ Natural'Asm_Input ("rJ", Retry_Count)),
+ Clobber => "$0, $1, $17",
+ Volatile => True);
+ end And_Atomic;
+
+ procedure And_Atomic
+ (To : in out Aligned_Long_Integer;
+ From : Long_Integer)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "mb" & LF & HT &
+ "1:" & LF & HT &
+ "ldq_l $1, %0" & LF & HT &
+ "and $1, %2, $0" & LF & HT &
+ "stq_c $0, %1" & LF & HT &
+ "beq $0, 1b" & LF & HT &
+ "mb",
+ Outputs => Aligned_Long_Integer'Asm_Output ("=m", To),
+ Inputs => (Aligned_Long_Integer'Asm_Input ("m", To),
+ Long_Integer'Asm_Input ("rJ", From)),
+ Clobber => "$0, $1",
+ Volatile => True);
+ end And_Atomic;
+
+ procedure And_Atomic
+ (To : in out Aligned_Long_Integer;
+ From : Long_Integer;
+ Retry_Count : Natural;
+ Old_Value : out Long_Integer;
+ Success_Flag : out Boolean)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "mb" & LF & HT &
+ "bis $31, %5, $17" & LF & HT &
+ "1:" & LF & HT &
+ "ldq_l $1, %0" & LF & HT &
+ "and $1, %4, $0" & LF & HT &
+ "stq_c $0, %3" & LF & HT &
+ "beq $0, 2f" & LF & HT &
+ "3:" & LF & HT &
+ "mb" & LF & HT &
+ "stq $0, %2" & LF & HT &
+ "stq $1, %1" & LF & HT &
+ "br 4f" & LF & HT &
+ "2:" & LF & HT &
+ "subq $17, 1, $17" & LF & HT &
+ "bgt $17, 1b" & LF & HT &
+ "br 3b" & LF & HT &
+ "4:",
+ Outputs => (Aligned_Long_Integer'Asm_Output ("=m", To),
+ Long_Integer'Asm_Output ("=m", Old_Value),
+ Boolean'Asm_Output ("=m", Success_Flag)),
+ Inputs => (Aligned_Long_Integer'Asm_Input ("m", To),
+ Long_Integer'Asm_Input ("rJ", From),
+ Natural'Asm_Input ("rJ", Retry_Count)),
+ Clobber => "$0, $1, $17",
+ Volatile => True);
+ end And_Atomic;
+
+ ---------------
+ -- Or_Atomic --
+ ---------------
+
+ procedure Or_Atomic
+ (To : in out Aligned_Integer;
+ From : Integer)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "mb" & LF & HT &
+ "1:" & LF & HT &
+ "ldl_l $1, %0" & LF & HT &
+ "bis $1, %2, $0" & LF & HT &
+ "stl_c $0, %1" & LF & HT &
+ "beq $0, 1b" & LF & HT &
+ "mb",
+ Outputs => Aligned_Integer'Asm_Output ("=m", To),
+ Inputs => (Aligned_Integer'Asm_Input ("m", To),
+ Integer'Asm_Input ("rJ", From)),
+ Clobber => "$0, $1",
+ Volatile => True);
+ end Or_Atomic;
+
+ procedure Or_Atomic
+ (To : in out Aligned_Integer;
+ From : Integer;
+ Retry_Count : Natural;
+ Old_Value : out Integer;
+ Success_Flag : out Boolean)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "mb" & LF & HT &
+ "bis $31, %5, $17" & LF & HT &
+ "1:" & LF & HT &
+ "ldl_l $1, %0" & LF & HT &
+ "bis $1, %4, $0" & LF & HT &
+ "stl_c $0, %3" & LF & HT &
+ "beq $0, 2f" & LF & HT &
+ "3:" & LF & HT &
+ "mb" & LF & HT &
+ "stq $0, %2" & LF & HT &
+ "stl $1, %1" & LF & HT &
+ "br 4f" & LF & HT &
+ "2:" & LF & HT &
+ "subq $17, 1, $17" & LF & HT &
+ "bgt $17, 1b" & LF & HT &
+ "br 3b" & LF & HT &
+ "4:",
+ Outputs => (Aligned_Integer'Asm_Output ("=m", To),
+ Integer'Asm_Output ("=m", Old_Value),
+ Boolean'Asm_Output ("=m", Success_Flag)),
+ Inputs => (Aligned_Integer'Asm_Input ("m", To),
+ Integer'Asm_Input ("rJ", From),
+ Natural'Asm_Input ("rJ", Retry_Count)),
+ Clobber => "$0, $1, $17",
+ Volatile => True);
+ end Or_Atomic;
+
+ procedure Or_Atomic
+ (To : in out Aligned_Long_Integer;
+ From : Long_Integer)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "mb" & LF & HT &
+ "1:" & LF & HT &
+ "ldq_l $1, %0" & LF & HT &
+ "bis $1, %2, $0" & LF & HT &
+ "stq_c $0, %1" & LF & HT &
+ "beq $0, 1b" & LF & HT &
+ "mb",
+ Outputs => Aligned_Long_Integer'Asm_Output ("=m", To),
+ Inputs => (Aligned_Long_Integer'Asm_Input ("m", To),
+ Long_Integer'Asm_Input ("rJ", From)),
+ Clobber => "$0, $1",
+ Volatile => True);
+ end Or_Atomic;
+
+ procedure Or_Atomic
+ (To : in out Aligned_Long_Integer;
+ From : Long_Integer;
+ Retry_Count : Natural;
+ Old_Value : out Long_Integer;
+ Success_Flag : out Boolean)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "mb" & LF & HT &
+ "bis $31, %5, $17" & LF & HT &
+ "1:" & LF & HT &
+ "ldq_l $1, %0" & LF & HT &
+ "bis $1, %4, $0" & LF & HT &
+ "stq_c $0, %3" & LF & HT &
+ "beq $0, 2f" & LF & HT &
+ "3:" & LF & HT &
+ "mb" & LF & HT &
+ "stq $0, %2" & LF & HT &
+ "stq $1, %1" & LF & HT &
+ "br 4f" & LF & HT &
+ "2:" & LF & HT &
+ "subq $17, 1, $17" & LF & HT &
+ "bgt $17, 1b" & LF & HT &
+ "br 3b" & LF & HT &
+ "4:",
+ Outputs => (Aligned_Long_Integer'Asm_Output ("=m", To),
+ Long_Integer'Asm_Output ("=m", Old_Value),
+ Boolean'Asm_Output ("=m", Success_Flag)),
+ Inputs => (Aligned_Long_Integer'Asm_Input ("m", To),
+ Long_Integer'Asm_Input ("rJ", From),
+ Natural'Asm_Input ("rJ", Retry_Count)),
+ Clobber => "$0, $1, $17",
+ Volatile => True);
+ end Or_Atomic;
+
+ ------------
+ -- Insqhi --
+ ------------
+
+ procedure Insqhi
+ (Item : Address;
+ Header : Address;
+ Status : out Insq_Status) is
+
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "bis $31, %1, $17" & LF & HT &
+ "bis $31, %2, $16" & LF & HT &
+ "mb" & LF & HT &
+ "call_pal 0x87" & LF & HT &
+ "mb",
+ Outputs => Insq_Status'Asm_Output ("=v", Status),
+ Inputs => (Address'Asm_Input ("rJ", Item),
+ Address'Asm_Input ("rJ", Header)),
+ Clobber => "$16, $17",
+ Volatile => True);
+ end Insqhi;
+
+ ------------
+ -- Remqhi --
+ ------------
+
+ procedure Remqhi
+ (Header : Address;
+ Item : out Address;
+ Status : out Remq_Status)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "bis $31, %2, $16" & LF & HT &
+ "mb" & LF & HT &
+ "call_pal 0x93" & LF & HT &
+ "mb" & LF & HT &
+ "bis $31, $1, %1",
+ Outputs => (Remq_Status'Asm_Output ("=v", Status),
+ Address'Asm_Output ("=r", Item)),
+ Inputs => Address'Asm_Input ("rJ", Header),
+ Clobber => "$1, $16",
+ Volatile => True);
+ end Remqhi;
+
+ ------------
+ -- Insqti --
+ ------------
+
+ procedure Insqti
+ (Item : Address;
+ Header : Address;
+ Status : out Insq_Status) is
+
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "bis $31, %1, $17" & LF & HT &
+ "bis $31, %2, $16" & LF & HT &
+ "mb" & LF & HT &
+ "call_pal 0x88" & LF & HT &
+ "mb",
+ Outputs => Insq_Status'Asm_Output ("=v", Status),
+ Inputs => (Address'Asm_Input ("rJ", Item),
+ Address'Asm_Input ("rJ", Header)),
+ Clobber => "$16, $17",
+ Volatile => True);
+ end Insqti;
+
+ ------------
+ -- Remqti --
+ ------------
+
+ procedure Remqti
+ (Header : Address;
+ Item : out Address;
+ Status : out Remq_Status)
+ is
+ use ASCII;
+ begin
+ System.Machine_Code.Asm
+ (
+ "bis $31, %2, $16" & LF & HT &
+ "mb" & LF & HT &
+ "call_pal 0x94" & LF & HT &
+ "mb" & LF & HT &
+ "bis $31, $1, %1",
+ Outputs => (Remq_Status'Asm_Output ("=v", Status),
+ Address'Asm_Output ("=r", Item)),
+ Inputs => Address'Asm_Input ("rJ", Header),
+ Clobber => "$1, $16",
+ Volatile => True);
+ end Remqti;
+
+end System.Aux_DEC;
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