adtools/clib2

*
* :ts=8
*
* Adapted from reassembled SAS/C runtime library code.
*
* Portable ISO 'C' (1994) runtime library for the Amiga computer
* Copyright (c) 2002-2015 by Olaf Barthel <obarthel (at) gmx.net>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
*   - Redistributions of source code must retain the above copyright
*     notice, this list of conditions and the following disclaimer.
*
*   - Neither the name of Olaf Barthel nor the names of contributors
*     may be used to endorse or promote products derived from this
*     software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*

    xdef    __CXV52
    xdef    __CXV53

    xref    __CXFERR

    section    text,code

__CXV52:

    MOVEM.L    D2/D3,-(SP)
    MOVEQ    #-1,D3
    MOVE.L    D0,D2
    BPL.W    lab04A
    CMPI.L    #$BFF00000,D0
    BCS.W    lab07A
    MOVEM.L    D0/D1/A0/A1,-(SP)
    PEA    (2).L
    JSR    __CXFERR
    ADDQ.W    #4,SP
    MOVEM.L    (SP)+,D0/D1/A0/A1
    BRA.W    lab07A

__CXV53:

    MOVEM.L    D2/D3,-(SP)
    MOVE.L    #$7FFFFFFF,D3
    MOVE.L    D0,D2
    BPL.W    lab04A
    ADDQ.L    #1,D3
    EOR.L    D3,D0
lab04A:    SWAP    D0
    MOVE.W    D0,D2
    ANDI.W    #$7FF0,D2
    EOR.W    D2,D0
    SUBI.W    #$3FF0,D2
    BLT.W    lab07A
    EORI.W    #$10,D0
    SWAP    D0
    ASR.W    #4,D2
    SUBI.W    #$14,D2
    BGT.W    lab09A
    NEG.W    D2
    LSR.L    D2,D0
    TST.L    D2
    BMI.W    lab0B2
    BRA.W    lab0B4

lab07A:    MOVEQ    #0,D0
    BRA.W    lab0B4

lab080:    MOVEM.L    D0/D1/A0/A1,-(SP)
    PEA    (2).L
    JSR    __CXFERR
    ADDQ.W    #4,SP
    MOVEM.L    (SP)+,D0/D1/A0/A1
    MOVE.L    D3,D0
    BRA.W    lab0B4

lab09A:    CMPI.W    #11,D2
    BGT.B    lab080
    EOR.L    D1,D0
    ROL.L    D2,D0
    LSL.L    D2,D1
    EOR.L    D1,D0
    CMP.L    D3,D0
    BHI.B    lab080
    TST.L    D2
    BPL.W    lab0B4
lab0B2:    NEG.L    D0
lab0B4:    MOVEM.L    (SP)+,D2/D3
    RTS

    end