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-------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- S Y S T E M . A U X _ D E C --
--- --
--- B o d y --
--- --
--- Copyright (C) 1992-2011, 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. --
--- --
-------------------------------------------------------------------------------
-
--- This is the Alpha/VMS version.
-
-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
-
- ------------------------
- -- 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;
-
- -----------------------
- -- Clear_Interlocked --
- -----------------------
-
- procedure Clear_Interlocked
- (Bit : in out Boolean;
- Old_Value : out Boolean)
- is
- use ASCII;
- Clr_Bit : Boolean := Bit;
- Old_Bit : Boolean;
-
- begin
- -- All these ASM sequences should be commented. I suggest defining
- -- a constant called E which is LF & HT and then you have more space
- -- for line by line comments ???
-
- 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
- -- Don't we need comments on these long asm sequences???
-
- 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 & -- Address of Bit
- "mb" & LF & HT &
- "sll $16, 3, $18 " & LF & HT & -- Byte address to bit address
- "bis $31, 1, %1" & LF & HT & -- Set temp to 1 for the sll
- "and $18, 63, $19" & LF & HT & -- Quadword bit offset
- "bic $18, 63, $18" & LF & HT & -- Quadword bit address
- "sra $18, 3, $18" & LF & HT & -- Quadword address
- "bis $31, %4, $17" & LF & HT & -- Retry_Count -> $17
- "sll %1, $19, $19" & LF & -- $19 = 1 << bit_offset
- "1:" & LF & HT &
- "ldq_l %2, 0($18)" & LF & HT & -- Load & lock
- "and %2, $19, %1" & LF & HT & -- Previous value -> %1
- "bis %2, $19, %2" & LF & HT & -- Set Bit
- "stq_c %2, 0($18)" & LF & HT & -- Store conditional
- "beq %2, 2f" & LF & HT & -- Goto 2: if failed
- "cmovne %1, 1, %1" & LF & HT & -- Set Old_Bit
- "br 3f" & LF &
- "2:" & LF & HT &
- "subq $17, 1, $17" & LF & HT & -- Retry_Count - 1
- "bgt $17, 1b" & LF & -- Retry ?
- "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 &
- "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 &
- "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 &
- "3:" & LF & HT &
- "mb" & LF & HT &
- "stq $0, %2" & LF & HT &
- "stl $1, %1" & LF & HT &
- "br 4f" & LF &
- "2:" & LF & HT &
- "subq $17, 1, $17" & LF & HT &
- "bgt $17, 1b" & LF & HT &
- "br 3b" & LF &
- "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 &
- "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 &
- "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 &
- "3:" & LF & HT &
- "mb" & LF & HT &
- "stq $0, %2" & LF & HT &
- "stq $1, %1" & LF & HT &
- "br 4f" & LF &
- "2:" & LF & HT &
- "subq $17, 1, $17" & LF & HT &
- "bgt $17, 1b" & LF & HT &
- "br 3b" & LF &
- "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 &
- "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 &
- "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 &
- "3:" & LF & HT &
- "mb" & LF & HT &
- "stq $0, %2" & LF & HT &
- "stl $1, %1" & LF & HT &
- "br 4f" & LF &
- "2:" & LF & HT &
- "subq $17, 1, $17" & LF & HT &
- "bgt $17, 1b" & LF & HT &
- "br 3b" & LF &
- "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 &
- "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 &
- "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 &
- "3:" & LF & HT &
- "mb" & LF & HT &
- "stq $0, %2" & LF & HT &
- "stq $1, %1" & LF & HT &
- "br 4f" & LF &
- "2:" & LF & HT &
- "subq $17, 1, $17" & LF & HT &
- "bgt $17, 1b" & LF & HT &
- "br 3b" & LF &
- "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 &
- "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 &
- "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 &
- "3:" & LF & HT &
- "mb" & LF & HT &
- "stq $0, %2" & LF & HT &
- "stl $1, %1" & LF & HT &
- "br 4f" & LF &
- "2:" & LF & HT &
- "subq $17, 1, $17" & LF & HT &
- "bgt $17, 1b" & LF & HT &
- "br 3b" & LF &
- "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 &
- "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 &
- "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 &
- "3:" & LF & HT &
- "mb" & LF & HT &
- "stq $0, %2" & LF & HT &
- "stq $1, %1" & LF & HT &
- "br 4f" & LF &
- "2:" & LF & HT &
- "subq $17, 1, $17" & LF & HT &
- "bgt $17, 1b" & LF & HT &
- "br 3b" & LF &
- "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;
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 01:26:13 +0000