Import from cleaned 360 CD

.gitattributes

+hdr/** gitlab-language=armasm linguist-language=armasm linguist-detectable=true
+s/** gitlab-language=armasm linguist-language=armasm linguist-detectable=true

Doc/Log

+Log of changes to DragASprite
+
+Version 0.02
+
+ *  Fix bug whereby bounding box for pointer ended up incorrect
+ *  Fix bug whereby bounding box for drop shadow ended up incorrect
+ *  Fix bug whereby box returned at end of drag was different to box supplied at start of drag
+
+Version 0.06
+
+ * (DDV) added dithered dragging
+ * Added some support for Medusa 16/32bpp modes

Doc/Use

+How to drive DragASprite
+
+How to do a drag
+----------------
+
+i) Prepare a sprite to be dragged (this may be trivial as the application may
+        have a suitable sprite already to hand).
+ii) Perform a DragASprite_Start. This takes a copy of your sprite (so you can
+        dispose of your copy whenever you like) and starts a Wimp drag.
+iii) When the Wimp sends you an indication that your drag has finished do
+        a DragASprite_Stop which will release the workspace necessary for
+        doing a drag-a-sprite.
+
+The Swis
+--------
+
+DragASprite_Start (0x42400)
+
+This Swi starts dragging a sprite. The sprite you supply is copied, so there
+is no problem with you disposing of your copy of the sprite.
+
+In:
+r0 = flags:
+        Bits    Meaning
+        0-1     Horizontal location of sprite in box:
+                00      Left
+                01      Centre
+                10      Right
+                11      <undefined>
+        2-3     Vertical location of sprite in box:
+                00      Bottom
+                01      Centre
+                10      Top
+                11      <undefined>
+        4-5     Drag bounding box is:
+                00      Whole screen
+                01      Display area of window that the pointer's over
+                10      User specified
+                11      <undefined>
+        6       Bounding box applies to:
+                0       The box
+                1       The pointer
+        7       Control of drop-shadow:
+                0       Don't do a drop-shadow
+                1       Make a drop shadow when copying the sprite
+        8-31    Reserved for future use, should be set to 0.
+r1 = sprite area:
+        0       System sprite area
+        1       Wimp sprite area
+        other   Address of sprite area
+r2 = sprite name^
+r3 = Pointer to 16-byte block containing box:
+        Offset  Use
+        0       x0
+        4       y0
+        8       x1
+        12      y1
+r4 = Pointer to optional (see flags) 16-byte block containing bounding box:
+        Offset  Use
+        0       x0
+        4       y0
+        8       x1
+        12      y1
+
+Out:
+All registers preserved.
+
+DragASprite_Stop (0x42401)
+
+This Swi terminates any current drag operation and releases any
+drag-a-sprite workspace claimed to do a drag. It is expected that this Swi
+will be called when the user_drag_box reason is received by the application.
+
+In:
+-
+Out:
+-

LICENSE

+
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+                           Version 2.0, January 2004
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+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+   limitations under the License.

Makefile

+# Copyright 1996 Acorn Computers Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Makefile for DragASprit
+#
+# ***********************************
+# ***    C h a n g e   L i s t    ***
+# ***********************************
+# Date       Name         Description
+# ----       ----         -----------
+# 25-May-94  AMcC         Created.
+#
+
+#
+# Paths
+#
+EXP_HDR = <export$dir>
+
+#
+# Generic options:
+#
+MKDIR   = cdir
+AS      = aasm
+CP      = copy
+RM      = remove
+CCFLAGS = -c -depend !Depend -IC:
+ASFLAGS = -depend !Depend -Stamp -quit -module -To $@ -From
+CPFLAGS = ~cfr~v
+
+#
+# Program specific options:
+#
+COMPONENT = DragASprit
+SOURCE    = s.Gets
+TARGET    = rm.DragASprit
+EXPORTS   = ${EXP_HDR}.${COMPONENT}
+
+#
+# Generic rules:
+#
+rom: ${TARGET}
+	@echo ${COMPONENT}: rom module built
+
+export: ${EXPORTS}
+	@echo ${COMPONENT}: export complete
+
+install_rom: ${TARGET}
+	${CP} ${TARGET} ${INSTDIR}.${COMPONENT} ${CPFLAGS}
+	@echo ${COMPONENT}: rom module installed
+
+clean:
+	${RM} ${TARGET}
+	@echo ${COMPONENT}: cleaned
+
+${TARGET}: ${SOURCE}
+	${AS} ${ASFLAGS} ${SOURCE}
+
+${EXP_HDR}.${COMPONENT}: hdr.${COMPONENT}
+	${CP} hdr.${COMPONENT} $@ ${CPFLAGS}
+
+# Dynamic dependencies:

MkClean,fd7

+| Copyright 1996 Acorn Computers Ltd
+|
+| Licensed under the Apache License, Version 2.0 (the "License");
+| you may not use this file except in compliance with the License.
+| You may obtain a copy of the License at
+|
+|     http://www.apache.org/licenses/LICENSE-2.0
+|
+| Unless required by applicable law or agreed to in writing, software
+| distributed under the License is distributed on an "AS IS" BASIS,
+| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+| See the License for the specific language governing permissions and
+| limitations under the License.
+|
+Dir <Obey$Dir>
+amu_machine clean

MkRom,fd7

+| Copyright 1996 Acorn Computers Ltd
+|
+| Licensed under the Apache License, Version 2.0 (the "License");
+| you may not use this file except in compliance with the License.
+| You may obtain a copy of the License at
+|
+|     http://www.apache.org/licenses/LICENSE-2.0
+|
+| Unless required by applicable law or agreed to in writing, software
+| distributed under the License is distributed on an "AS IS" BASIS,
+| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+| See the License for the specific language governing permissions and
+| limitations under the License.
+|
+Dir <Obey$Dir>
+amu_machine rom

hdr/DragASprit

+; Copyright 1996 Acorn Computers Ltd
+;
+; Licensed under the Apache License, Version 2.0 (the "License");
+; you may not use this file except in compliance with the License.
+; You may obtain a copy of the License at
+;
+;     http://www.apache.org/licenses/LICENSE-2.0
+;
+; Unless required by applicable law or agreed to in writing, software
+; distributed under the License is distributed on an "AS IS" BASIS,
+; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+; See the License for the specific language governing permissions and
+; limitations under the License.
+;
+        SUBT    Exported DragASprite constants
+
+OldOpt  SETA    {OPT}
+        OPT     OptNoList+OptNoP1List
+
+; ***********************************
+; ***    C h a n g e   L i s t    ***
+; ***********************************
+
+; Date       Name  Description
+; ----       ----  -----------
+; 21-Sep-90  JSR   Created
+; 17-Mar-93  DDV   Hatching flag added before leaving
+; 17-May-94  AMcC  Changed to using the preferred SWI base and name symbols
+
+SWIClass        SETS    DragASpriteSWI_Name
+
+        ^       DragASpriteSWI_Base
+
+        AddSWI  Start                   ; &42500
+        AddSWI  Stop                    ; &42501
+
+DS_HJustify_Mask        *       3 :SHL: 0
+DS_HJustify_Left        *       0 :SHL: 0
+DS_HJustify_Centre      *       1 :SHL: 0
+DS_HJustify_Right       *       2 :SHL: 0
+
+DS_VJustify_Mask        *       3 :SHL: 2
+DS_VJustify_Bottom      *       0 :SHL: 2
+DS_VJustify_Centre      *       1 :SHL: 2
+DS_VJustify_Top         *       2 :SHL: 2
+
+DS_BoundTo_Mask         *       3 :SHL: 4
+DS_BoundTo_Screen       *       0 :SHL: 4
+DS_BoundTo_Window       *       1 :SHL: 4
+DS_BoundTo_UserBox      *       2 :SHL: 4
+
+DS_Bound_Mask           *       1 :SHL: 6
+DS_Bound_Box            *       0 :SHL: 6
+DS_Bound_Pointer        *       1 :SHL: 6
+
+DS_DropShadow_Mask      *       1 :SHL: 7
+DS_DropShadow_Missing   *       0 :SHL: 7
+DS_DropShadow_Present   *       1 :SHL: 7
+
+DS_Hatching             *       0 :SHL: 8
+DS_NoHatching           *       1 :SHL: 8
+
+        OPT     OldOpt
+        END

rm/.gitignore

+*
+!.gitignore

s/DebugOpts

+; Copyright 1996 Acorn Computers Ltd
+;
+; Licensed under the Apache License, Version 2.0 (the "License");
+; you may not use this file except in compliance with the License.
+; You may obtain a copy of the License at
+;
+;     http://www.apache.org/licenses/LICENSE-2.0
+;
+; Unless required by applicable law or agreed to in writing, software
+; distributed under the License is distributed on an "AS IS" BASIS,
+; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+; See the License for the specific language governing permissions and
+; limitations under the License.
+;
+        GBLL    T
+T       SETL       {TRUE}
+        GBLL    F
+F       SETL       {FALSE}
+
+        GBLL    debugany
+debugany        SETL    F
+
+        MACRO
+$Label  debugF  $Flag
+        GBLL    $Label
+$Label  SETL $Flag :LAND: debugany
+        MEND
+
+debugstart      debugF  T
+debugstop       debugF  F
+debugdrag       debugF  F
+debuggwindow    debugF  F
+
+        GBLS    debug_Inclusion
+debug_Inclusion SETS "; No debug wanted"
+ [ debugany
+debug_Inclusion SETS " GET Hdr:debug"
+ ]
+$debug_Inclusion
+
+
+debug_Inclusion SETS "; No Host debug wanted"
+ [ debugany
+Host_Debug SETL T
+
+  [ Host_Debug
+debug_Inclusion SETS " GET Hdr:HostFS"
+  ]
+ ]
+$debug_Inclusion
+        END

s/Drag

+; Copyright 1996 Acorn Computers Ltd
+;
+; Licensed under the Apache License, Version 2.0 (the "License");
+; you may not use this file except in compliance with the License.
+; You may obtain a copy of the License at
+;
+;     http://www.apache.org/licenses/LICENSE-2.0
+;
+; Unless required by applicable law or agreed to in writing, software
+; distributed under the License is distributed on an "AS IS" BASIS,
+; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+; See the License for the specific language governing permissions and
+; limitations under the License.
+;
+; b/g(0) is the b/g behind the plotted sprite
+
+; unplot:
+;       Plot the b/g sprite at the relevant location
+UnPlot  ENTRY   "r0-r11"
+        BL      DoBusinessToDest
+        EXITS   VS
+
+ [ debugdrag
+        DLINE   "UnPlot"
+ ]
+
+        MOV     r3, r0
+        MOV     r4, r1
+        LDR     r0, =SpriteReason_PutSpriteUserCoords + &100
+        LDR     r1, bg0sa
+        ADR     r2, bg_name
+        MOV     r5, #0
+        SWI     XOS_SpriteOp
+        EXITS
+
+; plot:
+;       Grab the b/g sprite at the required location
+;       Plot the f/g sprite at the required location
+Plot    ENTRY   "r0-r11"
+
+        MOV     lr, #0
+        STRB    lr, FirstMoveIsPlot
+
+        BL      DoBusinessToDest
+        EXITS   VS
+
+ [ debugdrag
+        DREG    r0, "Plot at ",cc
+        DREG    r1, ","
+ ]
+
+        ; Grab bg0 from the screen
+        MOV     r4, r0
+        MOV     r5, r1
+        SUB     r6, r2, #1
+        SUB     r7, r3, #1
+        BL      Getbg0
+        EXITS   VS
+
+        ; Plot fg
+        LDR     r0, =SpriteReason_PutSpriteUserCoords + &100
+        LDR     r1, fgsa
+        ADRL    r2, fg_name
+        MOV     r3, r4
+        MOV     r4, r5
+        MOV     r5, #8          ; Mask is used for transparency
+        SWI     XOS_SpriteOp
+        EXITS
+
+; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+;
+; Move:
+;
+; In    r0-r3 = dst
+;       r4-r7 = src
+;
+;       Grab bg1 (by GWindow escape) at dst
+;       Plot bg0 to bg1 (bg0 at src, bg1 at dst)
+;       Plot fg to bg0 (fg at dst, gb0 at src)
+;       Plot fg to screen (fg at dst)
+;       Plot bg0 to screen (bg0 at src)
+;       Swap bg0 and bg1
+;
+Move
+        ENTRY   "r0-r7" , 8*4
+
+        ; If first action is move then it must be plot instead
+        LDRB    lr, FirstMoveIsPlot
+        TEQ     lr, #0
+        ADDNE   sp, sp, #8*4
+        Pull    "$Proc_RegList,lr",NE
+        BNE     Plot
+
+        BL      DoBusinessToDest
+        BLVC    DoBusinessToSource
+        STMIA   sp, {r0-r7}
+
+        TEQ     r0, r4
+        TEQEQ   r1, r5
+        TEQEQ   r2, r6
+        TEQEQ   r3, r7
+        EXITS   EQ
+
+ [ debugdrag
+        DLINE   "Move  ",cc
+        LDR     r4, bl_offset_x
+        DREG    r4, "x_o=",cc
+        LDR     r4, bl_offset_y
+        DREG    r4, " y_o="
+ ]
+
+        ; Grab bg1 (by GWindow escape) at dst
+        MOV     r4, r0
+        MOV     r5, r1
+        MOV     r6, r2
+        MOV     r7, r3
+        BL      Getbg1
+
+        ; Plot bg0 to bg1 (bg0 at src, bg1 at dst)
+
+        ; Switch to bg1
+        LDRVC   r1, bg1sa
+        BLVC    SwitchOutputToSprite
+        EXITS   VS
+        Push    "r0-r3"                 ; Details to restore back to screen
+