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Amiga Assembly Library v41.21 — Motorola 68020 shared library for Commodore Amiga
DocumentationREI InterfaceOpenREIA

OpenREIA

Synopsis

rei = OpenREIA(rei, name, taglist)
D0              A0   A1     A2

C Prototype

struct REI *OpenREIA(struct REI *, STRPTR, struct TagItem *);
 
/* Varargs stub */
struct REI *OpenREI(struct REI *, STRPTR, Tag, ...);

Description

Opens a specific REI, identified either by the address of the REI to open, or if the rei parameter is NULL, by its name — a null-terminated string that identifies the REI. Both parameters cannot be NULL at the same time, otherwise the function fails and returns NULL.

On success, the returned REI structure contains the following fields:

struct REI {
    /* struct Node */
    struct Screen *rei_Screen;
    struct Window *rei_Window;
    struct Menu   *rei_Menu;
    ULONG          rei_reserved1;
    struct vi     *rei_VI;          /* VisualInfo */
    ULONG          rei_reserved2[8];
    UWORD          rei_ID;          /* User-defined REI ID */
    APTR           rei_UserData;    /* User-defined data */
};

Inputs

  • rei — Pointer to a REI structure, previously loaded from disk by OpenInterface(). Can be NULL, in which case the name parameter will be used to search for the REI in the system list.
  • name — Pointer to a null-terminated string containing the name of the REI to display. This parameter is only considered when rei is NULL.
  • taglist — Pointer to a TagItem list.

Tags

  • REIT_Screen (struct Screen *) — Address of the screen where the REI should open. If NULL, the REI is displayed on the default public screen. (Default: NULL)
  • REIT_WindowTAG (struct TagItem *) — Address of a TagItem list for the Window, used instead of the one defined with REI-Editor. (Default: NULL)
  • REIT_ScreenTAG (struct TagItem *) — Address of a TagItem list for the Screen, used instead of the one defined with REI-Editor. (Default: NULL)
  • REIT_WindowTextAttr (struct TextAttr *) — Font type for this REI’s Window. If NULL, the system font is used. (Default: NULL)
  • REIT_WindowTextFont (struct TextFont *) — Font type for this REI’s Window. If NULL, the system font is used. (Default: NULL)
  • REIT_ScreenFont (BOOL) — If TRUE, forces the Window to use the same fonts used by the screen it opens on. (Default: FALSE)
  • REIT_NewMenu (struct NewMenu *) — Address of a NewMenu structure. These are the menus for this Window. (Default: NULL)
  • REIT_NewMenuTAG (struct TagItem *) — Address of a TagItem list for menus attached via tags. (Default: NULL)
  • REIT_UserData (LONG) — 32 bits of user-defined data. (Default: NULL)
  • REIT_LayoutCallBack (struct Hook *) — Address of a Hook structure for the backfill of this Window’s layer. Called with object == (struct RastPort *) and message == [Layer *, struct Rectangle bounds, LONG offsetx, LONG offsety]. See layers.library/InstallLayerHook(). (Default: NULL)
  • REIT_CustomHook (struct Hook *) — Address of a Hook for executing custom operations on the Window. Called after the REI Window is opened and prepared, with object == (struct Window *) and message == NULL. A6 contains AssemblyBase. (Default: NULL)
  • REIT_RememberPos (BOOL) — If TRUE, remembers the Window position (LeftEdge, TopEdge) after a CloseREI(). (Default: FALSE)
  • REIT_RememberSize (BOOL) — If TRUE, remembers the Window dimensions (Width, Height) after a CloseREI(). (Default: FALSE)
  • REIT_CenterHScreen (BOOL) — If TRUE, centers the Window horizontally on the output screen. (Default: FALSE)
  • REIT_CenterVScreen (BOOL) — If TRUE, centers the Window vertically on the output screen. (Default: FALSE)
  • REIT_CenterMouse (BOOL) — If TRUE, opens the Window so the mouse pointer is at its center. (Default: FALSE)
  • REIT_NoFontSensitive (BOOL) — If TRUE, the Window dimensions are no longer relative to fonts. USE WITH CAUTION. (Default: FALSE)
  • REIT_WindowTitle (STRPTR) — Pointer to a null-terminated string for the Window title. Introduced to simplify title setting for localization. (Default: NULL)
  • REIT_Window (struct Window *) — Pointer to a Window structure that determines the output screen for this REI. (Default: NULL)

Result

  • rei — Address of the displayed REI structure. If NULL, an error occurred and the entire interface was not displayed. If a valid rei parameter was passed in the inputs, the same address is returned.

See Also

CloseREI, FindREI, GetREIAttrsA, SetREIAttrsA

assembly/asmintuition.h

Implementation

The original 68020 assembly implementation:

; (25-Jan-1995) --- rei = OpenREIA(rei, name, taglist) (a0/a1/a2)
TagReiTable
        dc.l    SRE_ESR                 * Offset...
        dc.l    INITScreen,INITWindowTAG,INITScreenTAG,INITGadgetTextAttr
        dc.l    INITEmpty,INITEmpty,INITNewMenu,INITNewMenuTAG
        dc.l    INITUserData,INITLayoutCallBack,INITCustomHook
        dc.l    INITRememberPos,INITRememberSize,INITCenterHScreen,INITCenterVScreen
        dc.l    INITCenterMouse,INITNoFontSensitive,INITWindowTitle,INITWindow
        dc.l    INITEmpty,INITEmpty,INITEmpty,INITEmpty,INITEmpty,INITEmpty,INITEmpty
        dc.l    INITEmpty,INITEmpty,INITEmpty,INITEmpty,INITEmpty,INITEmpty,INITEmpty
        dc.l    INITDoubleClick
_LVOOpenREIA
        movem.l d2-d6/a2-a6,-(sp)
        move.l  a6,a5                   * Save AsmBase
        move.l  a0,d0                   * Was a REI provided??
        bne.s   SRE_FND                 * Ok, then don't search for it by name...
        move.l  a1,d0                   * if a NULL name was provided
        beq.s   SRE_ESR                 * exit...
        move.l  ab_ExecBase(a5),a0
        move.l  ([ThisTask.w,a0],TC_Userdata.w),a0 * struct MinList *
        move.l  a0,d0
        beq.s   SRE_ESR
        FINDNAME
        move.l  d0,a4                   * (struct REI *) in A4
        move.l  a4,d0                   * Check...
        bne.s   SRE_FND                 * Ok, name and node found... continue...
SRE_ESR movem.l (sp)+,d2-d6/a2-a6      * Nothing, just exit
        rts
;--------------------------------------------------------------------------------------
SRE_FND move.l  d0,a4                   * THIS REI ALWAYS IN A4
        moveq   #0,d0
        BTSTL   REIB_OPENCLOSE,rei_Flags(a4)
        bne.s   SRE_ESR
        move.l  a2,a0                   * TagItem in A1...
        move.l  a0,d0                   * Is there a TagItem list??
        beq     REIMain
;--------------------------------------------------------------------------------------
; This part initializes a REI structure via a TagList.
;--------------------------------------------------------------------------------------
TI_TAG  USETAGLIST.l TagReiTable(pc),GO_TAG,REIMain
;--------------------------------------------------------------------------------------
INITScreen
        move.l  (a0)+,rei_Screen(a4)
        bra.s   GO_TAG
;--------------------------------------------------------------------------------------
INITWindowTAG
        move.l  (a0)+,rei_NewWindowTAG(a4)
        bra.s   GO_TAG
;--------------------------------------------------------------------------------------
INITScreenTAG
        move.l  (a0)+,rei_ScreenTAG(a4)
        bra.s   GO_TAG
;--------------------------------------------------------------------------------------
INITGadgetTextAttr
        move.l  (a0)+,rei_GadgetTextAttr(a4)
        bra.s   GO_TAG
;--------------------------------------------------------------------------------------
INITNewMenu
        move.l  (a0)+,rei_NewMenu(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITNewMenuTAG
        move.l  (a0)+,rei_NewMenuTAG(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITUserData
        move.l  (a0)+,rei_UserData(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITLayoutCallBack
        move.l  (a0)+,rei_LayoutCallBack(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITCustomHook
        move.l  (a0)+,rei_CustomHook(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITRememberPos
        move.l  (a0)+,d0
        bne.s   RPFSET
        BCLRL   REIB_REMEMBERPOS,rei_Flags(a4)
        bra     GO_TAG
RPFSET  BSETL   REIB_REMEMBERPOS,rei_Flags(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITRememberSize
        move.l  (a0)+,d0
        bne.s   RSFSET
        BCLRL   REIB_REMEMBERSIZE,rei_Flags(a4)
        bra     GO_TAG
RSFSET  BSETL   REIB_REMEMBERSIZE,rei_Flags(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITCenterHScreen
        move.l  (a0)+,d0
        bne.s   CHFSET
        BCLRL   REIB_CENTERHSCREEN,rei_Flags(a4)
        bra     GO_TAG
CHFSET  BSETL   REIB_CENTERHSCREEN,rei_Flags(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITCenterVScreen
        move.l  (a0)+,d0
        bne.s   CVFSET
        BCLRL   REIB_CENTERVSCREEN,rei_Flags(a4)
        bra     GO_TAG
CVFSET  BSETL   REIB_CENTERVSCREEN,rei_Flags(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITCenterMouse
        move.l  (a0)+,d0
        bne.s   CMFSET
        BCLRL   REIB_CENTERMOUSE,rei_Flags(a4)
        bra     GO_TAG
CMFSET  BSETL   REIB_CENTERMOUSE,rei_Flags(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITNoFontSensitive
        move.l  (a0)+,d0
        bne.s   NFFSET
        BCLRL   REIB_NOFONTSENSITIVE,rei_Flags(a4)
        bra     GO_TAG
NFFSET  BSETL   REIB_NOFONTSENSITIVE,rei_Flags(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITWindowTitle
        move.l  (a0)+,rei_NewWindow+nw_Title(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITWindow
        move.l  (a0)+,d0
        beq     GO_TAG
        move.l  d0,a0
        move.l  wd_WScreen(a0),rei_Screen(a4)
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITEmpty
        addq.w  #4,a0
        bra     GO_TAG
;--------------------------------------------------------------------------------------
INITDoubleClick
        move.l  (a0)+,d0
        bne.s   DCFSET
        BCLRL   REIB_DOUBLECLICK,rei_Flags(a4)
        bra     GO_TAG
DCFSET  BSETL   REIB_DOUBLECLICK,rei_Flags(a4)
        bra     GO_TAG
 
;--------------------------------------------------------------------------------------
; Let's begin... this is the actual code part.
;--------------------------------------------------------------------------------------
REIMain move.l  ab_IntuiBase(a5),a6     * Get Intuition for now...
        move.l  rei_Screen(a4),d0       * (struct Screen *)
        bne.s   SRE_GAI                 * Get All Infos...
        move.l  rei_ScreenTAG(a4),d0
        beq.s   SRE_PUB                 * Let's see which public screen it is, then
        move.l  d0,a1
        suba.l  a0,a0
        jsr     _LVOOpenScreenTagList(a6) * Open a CustomScreen then
        tst.l   d0                      * NULL pointer??
        beq     SRE_EX2                 * Exit... error
        move.l  d0,rei_Screen(a4)       * Open here!
        bra.s   SRE_GAI
SRE_PUB move.l  rei_PubScreenName(a4),a0
        jsr     _LVOLockPubScreen(a6)
        move.l  d0,a3
        suba.l  a0,a0
        move.l  a3,a1
        jsr     _LVOUnlockPubScreen(a6)
        move.l  a3,d0
;--------------------------------------------------------------------------------------
SRE_GAI move.l  d0,rei_Screen(a4)       * Save...
        move.l  d0,a0                   * Screen pointer (struct Screen *)
        move.l  a5,a6                   * AsmBase...
        bsr     NewGetVisualInfo        * Get...
        move.l  d0,rei_VI(a4)           * Save...
;--------------------------------------------------------------------------------------
        move.l  rei_Screen(a4),a0       * A0 = Screen
        move.w  sc_Flags(a0),d0         * D0 = Flags
        andi.w  #SCREENTYPE,d0          * D0 = Type of Screen
        move.l  a0,rei_NewWindow+nw_Screen(a4) * Pointer to Screen
        move.w  d0,rei_NewWindow+nw_Type(a4) * Type!!
;--------------------------------------------------------------------------------------
        jsr     _LVOAllocRastPort       * Allocate a dummy RastPort to
        tst.l   d0
        beq     SRE_FREEINFOS
        move.l  d0,rei_rpGadget(a4)     * calculate pos/size of Gadgets...
        move.l  ab_GfxBase(a5),a6
        move.l  rei_Screen(a4),a0
        lea     sc_RastPort(a0),a0
        move.l  rp_Font(a0),rei_GadgetFont(a4) * Screen TextFont - Default
        move.l  rei_GadgetTextAttr(a4),d0 * Custom TextAttr Font for Gadget??
        beq.s   NOFONT                  * None, continue...
        move.l  d0,a0
        jsr     _LVOOpenFont(a6)
        move.l  d0,rei_GadgetFont(a4)   * Save anyway, even if NULL...
;--------------------------------------------------------------------------------------
NOFONT  move.l  rei_GadgetFont(a4),a0
        move.l  rei_rpGadget(a4),a1
        jsr     _LVOSetFont(a6)
 
        lea     rei_glist(a4),a0        * glist pointer for CreateContext()
        move.l  ab_GadToolsBase(a5),a6  * glist = prevGad
        jsr     _LVOCreateContext(a6)   * Already has GadToolsBase in A6
;--------------------------------------------------------------------------------------
        move.l  rei_Screen(a4),a0
        move.l  rei_rpGadget(a4),a1
        BTSTL   REIB_REMEMBERSIZE,rei_Flags(a4)
        beq.s   NoRSize
        movem.l rei_RemWidth(a4),d2-d3
        tst.l   d2
        bne.s   FontSen
;--------------------------------------------------------------------------------------
NoRSize BTSTL   REIB_NOFONTSENSITIVE,rei_Flags(a4)
        bne.s   UnderS                  * Standard coordinates
        move.l  rei_PropWidth(a4),d2
        move.l  rei_PropHeight(a4),d3
FontSen move.w  rp_TxWidth(a1),d0
        move.w  rp_TxHeight(a1),d1
        move.w  d2,d4
        swap    d2
        mulu.w  d2,d0
        add.w   d4,d0
        move.w  d3,d4
        swap    d3
        mulu.w  d3,d1
        add.w   d4,d1
        movem.w d0-d1,rei_NewWindow+nw_Width(a4)
        movem.w d0-d1,rei_NewWindow+nw_MinWidth(a4)
;--------------------------------------------------------------------------------------
UnderS  BTSTL   REIB_UNDERSCREEN,rei_Flags(a4)
        beq.s   Center
        move.l  d0,rei_NewWindow+nw_LeftEdge(a4) * Start from here, under the Screen
        movem.w ([rei_Screen.w,a4],sc_Width.w),d1-d2 * Width and Height of the screen
        sub.w   d0,d2
        movem.w d1-d2,rei_NewWindow+nw_Width(a4)
        bra     OPENWSO
Center  BTSTL   REIB_REMEMBERPOS,rei_Flags(a4)
        beq.s   NoRem
        movem.w rei_RemLeft(a4),d0-d1
        movem.w d0-d1,rei_NewWindow+nw_LeftEdge(a4)
        bra.s   OpenWin
NoRem   BTSTL   REIB_CENTERHSCREEN,rei_Flags(a4)
        beq.s   ReiCenV
        move.w  ([rei_Screen.w,a4],sc_Width.w),d0
        sub.w   rei_NewWindow+nw_Width(a4),d0
        asr.w   #1,d0
        move.w  d0,rei_NewWindow+nw_LeftEdge(a4)
ReiCenV BTSTL   REIB_CENTERVSCREEN,rei_Flags(a4)
        beq.s   FLMouse
        move.w  ([rei_Screen.w,a4],sc_Height.w),d0
        sub.w   rei_NewWindow+nw_Height(a4),d0
        asr.w   #1,d0
        move.w  d0,rei_NewWindow+nw_TopEdge(a4)
FLMouse BTSTL   REIB_CENTERMOUSE,rei_Flags(a4)
        beq.s   OpenWin
        movem.w ([rei_Screen.w,a4],sc_MouseY.w),d0-d1
        exg.l   d0,d1
        movem.w rei_NewWindow+nw_Width(a4),d2-d3
        asr.w   #1,d2
        asr.w   #1,d3
        sub.w   d2,d0
        bge.s   FLOk01
        moveq   #0,d0
FLOk01  sub.w   d3,d1
        bge.s   FLSave
        moveq   #0,d1
FLSave  movem.w d0-d1,rei_NewWindow+nw_LeftEdge(a4)
;--------------------------------------------------------------------------------------
OpenWin lea     rei_NewWindow(a4),a0    * NewWindow Structure
        move.l  rei_STDWindowTAG(a4),d0 * Get Standard Window TagItem List
        move.l  d0,a1
        beq     OPENWSO
        tst.l   rei_NewWindowTAG(a4)    * Does a personal extension exist?
        beq     OPENOOO
;--------------------------------------------------------------------------------------
        move.l  rei_NewWindowTAG(a4),a1 * Extra...
SFIW    move.l  a1,a0                   * reset Tag_Item list
        move.l  #WA_InnerWidth,d1
        FINDTAG
        beq.s   SFIH
        move.l  4(a0),d4               * Wants a new InnerWidth
SFIH    move.l  a1,a0
        move.l  #WA_InnerHeight,d1
        FINDTAG
        beq.s   ENDSER
        move.l  4(a0),d5               * Wants a new InnerHeight
ENDSER  lea     rei_NewWindow(a4),a0    * NewWindow Structure
        move.l  rei_STDWindowTAG(a4),d0 * Get Standard Window TagItem List
        move.l  d0,a1
        movem.w d4-d5,nw_Width(a0)
;--------------------------------------------------------------------------------------
OPENOOO move.w  nw_Width(a0),6(a1)
        move.w  nw_Height(a0),14(a1)
        move.l  rei_NewWindowTAG(a4),28(a1) * TAG_MORE
;--------------------------------------------------------------------------------------
OPENWSO move.l  ab_IntuiBase(a5),a6
        jsr     _LVOOpenWindowTagList(a6)
        tst.l   d0                      * Some error??
        beq     SRE_FREEFONT            * Then Exit
        move.l  d0,rei_Window(a4)       * Save Pointer in REI
        move.l  d0,a0
        move.l  a4,wd_UserData(a0)      * Put Addr of this REI
;--------------------------------------------------------------------------------------
        move.l  rei_LayoutCallBack(a4),d0 * CallBack Hook
        beq     SRECOX
        move.l  d0,a1
        move.l  ([rei_Window.w,a4],wd_RPort.w),a0
        move.l  rp_Layer(a0),a0         * Layer
        move.l  ab_LayersBase(a5),a6
        jsr     _LVOInstallLayerHook(a6)
        move.l  d0,rei_OldHook(a4)
        move.l  rei_Window(a4),a0       * Window
        move.l  a5,a6                   * AsmBase
        pea     SRECOX(pc)
        bra     _LVOEraseInternalRect
;--------------------------------------------------------------------------------------
SRECOX  move.l  ([rei_HEADAsmGadget.w,a4]),d0 * HEAD / TAIL
        beq.s   AddGad                  * Add CreateContext() anyway and always
        move.l  rei_glist(a4),a2        * PrevGadget
        move.l  rei_HEADAsmGadget(a4),a3 * A3 = 1st AsmGadget Node...
        move.l  a5,a6
        bsr     LayoutAsmGList          * A4=REI, A3=AsmGList, A2=PrevGadget
;--------------------------------------------------------------------------------------
AddGad  move.l  rei_Window(a4),a0       * As you can see, the PrevGad is always
        move.l  rei_glist(a4),a1        * added to the Window, even if no
        moveq   #-1,d0                  * AsmGadget structures are present.
        moveq   #-1,d1
        suba.l  a2,a2
        move.l  ab_IntuiBase(a5),a6
        jsr     _LVOAddGList(a6)
        move.l  rei_glist(a4),a0        * Refresh all added Gadgets
        move.l  rei_Window(a4),a1
        suba.l  a2,a2
        moveq   #-1,d0
        jsr     _LVORefreshGList(a6)
        move.l  ab_GadToolsBase(a5),a6
        move.l  rei_Window(a4),a0
        suba.l  a1,a1
        jsr     _LVOGT_RefreshWindow(a6)
;--------------------------------------------------------------------------------------
SRE_MNU move.l  rei_NewMenu(a4),d0      * Are there Menus?
        beq.s   CU_HOOK                 * CustomHook...
        move.l  d0,a0
        move.l  rei_NewMenuTAG(a4),a1
        move.l  ab_GadToolsBase(a5),a6
        jsr     _LVOCreateMenusA(a6)
        move.l  d0,rei_Menu(a4)
        move.l  d0,a0
        move.l  rei_VI(a4),a1
        suba.l  a2,a2
        jsr     _LVOLayoutMenusA(a6)
        move.l  rei_Window(a4),a0
        move.l  rei_Menu(a4),a1
        move.l  ab_IntuiBase(a5),a6
        jsr     _LVOSetMenuStrip(a6)
;--------------------------------------------------------------------------------------
CU_HOOK move.l  rei_CustomHook(a4),d0
        beq.s   SRE_ASL
        move.l  d0,a0
        suba.l  a1,a1
        move.l  rei_Window(a4),a2
        move.l  a5,a6
        move.l  h_Entry(a0),a3
        jsr     (a3)
;--------------------------------------------------------------------------------------
SRE_ASL
        BTSTL   REIB_REQUEST,rei_Flags(a4)
        beq.s   SRE_PEX
        move.l  ab_IntuiBase(a5),a6
        move.l  rei_Screen(a4),a0
        jsr     _LVOScreenToFront(a6)
SRE_PEX BSETL   REIB_OPENCLOSE,rei_Flags(a4) * This REI is OPEN
        move.l  a4,d0                   * Exit All OK... D0 = REI
SRE_EXT movem.l (sp)+,d2-d6/a2-a6
        rts
ClearREI ds.l   8
;--------------------------------------------------------------------------------------
SRE_FREEGADGETS
        move.l  rei_glist(a4),a0        * = CreateContext()
        move.l  ab_GadToolsBase(a5),a6
        jsr     _LVOFreeGadgets(a6)
SRE_FREEFONT
        move.l  rei_GadgetTextAttr(a4),d0
        beq.s   NoFOP
        move.l  ab_GfxBase(a5),a6
        move.l  d0,a1
        jsr     _LVOCloseFont(a6)
NoFOP   move.l  ab_ExecBase(a5),a6
        move.l  rei_rpGadget(a4),a1
        move.l  -(a1),d0
        jsr     _LVOFreeMem(a6)
SRE_FREEINFOS                           * Free VI & DrawInfo
        move.l  rei_VI(a4),a0
        move.l  a5,a6
        bsr     NewFreeVisualInfo
SRE_CLOSESCREEN                         * Close Screen
        move.l  rei_ScreenTAG(a4),d0    * The CUSTOM screen is always and only
        beq.s   SRE_EX2                 * opened if a TagList exists.
        move.l  rei_Screen(a4),a0
        move.l  ab_IntuiBase(a5),a6
        jsr     _LVOCloseScreen(a6)
        moveq   #0,d0                   * NULL to return an error.
SRE_EX2 movem.l (sp)+,d2-d6/a2-a6
        rts
Last updated on
OverviewCloseREI

The Amiga Assembly Library is a shared library for Commodore Amiga written in Motorola 68020 assembly language. Version 41.21, Public Domain Software. Compatible with KickStart 3.0+.

DOCUMENTATION
Getting Started
Exec Module
DOS Module
Graphics Module
C Interface
RESOURCES
AmigaOS Wiki
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MODULES
Exec (Memory)
DOS (Files)
Graphics
Libraries (Strings)
Math (Conversions)
Intuition & GadTools
REI Interface
Examples

Amiga Assembly Library v41.21 — Public Domain Software

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Source on GitHub