mirror of
https://github.com/lscharen/iigs-game-engine.git
synced 2024-12-28 03:29:22 +00:00
797 lines
22 KiB
ArmAsm
797 lines
22 KiB
ArmAsm
*=================================================
|
|
* Utility Macros - from Merlin disk
|
|
* by Dave Klimas, et al
|
|
*
|
|
* Copyright Apple Computer, Inc. 1986, 1987
|
|
* and Roger Wagner Publishing, Inc. 1988
|
|
* All Rights Reserved
|
|
*-------------------------------------------------
|
|
|
|
PHWL MAC
|
|
PHW ]1
|
|
PHL ]2
|
|
<<<
|
|
PHLW MAC
|
|
PHL ]1
|
|
PHW ]2
|
|
<<<
|
|
PxW MAC
|
|
DO ]0/1
|
|
PHW ]1
|
|
DO ]0/2
|
|
PHW ]2
|
|
DO ]0/3
|
|
PHW ]3
|
|
DO ]0/4
|
|
PHW ]4
|
|
FIN
|
|
FIN
|
|
FIN
|
|
FIN
|
|
<<<
|
|
PxL MAC
|
|
DO ]0/1
|
|
PHL ]1
|
|
DO ]0/2
|
|
PHL ]2
|
|
DO ]0/3
|
|
PHL ]3
|
|
DO ]0/4
|
|
PHL ]4
|
|
FIN
|
|
FIN
|
|
FIN
|
|
FIN
|
|
<<<
|
|
P2SL MAC
|
|
PHA
|
|
P1SL MAC
|
|
PHA
|
|
PHL MAC
|
|
IF #=]1
|
|
PEA ^]1
|
|
ELSE
|
|
PHW ]1+2
|
|
FIN
|
|
PHW ]1
|
|
<<<
|
|
P2SW MAC
|
|
PHA
|
|
P1SW MAC
|
|
PHA
|
|
PHW MAC
|
|
IF #=]1
|
|
PEA ]1
|
|
ELSE
|
|
IF MX/2
|
|
LDA ]1+1
|
|
PHA
|
|
FIN
|
|
LDA ]1
|
|
PHA
|
|
FIN
|
|
<<<
|
|
PushSpace MAC
|
|
PHS MAC
|
|
DO ]0
|
|
LUP ]1
|
|
PHA
|
|
--^
|
|
ELSE
|
|
PHA
|
|
FIN
|
|
<<<
|
|
|
|
********************************
|
|
|
|
Push4 MAC
|
|
PushLong #0
|
|
PushLong #0
|
|
<<<
|
|
|
|
PushPtr MAC
|
|
PEA ^]1
|
|
PEA ]1
|
|
EOM
|
|
|
|
PushLong MAC
|
|
IF #=]1
|
|
PushWord #^]1
|
|
ELSE
|
|
PushWord ]1+2
|
|
FIN
|
|
PushWord ]1
|
|
<<<
|
|
|
|
PushWord MAC
|
|
IF #=]1
|
|
PEA ]1
|
|
ELSE
|
|
IF MX/2
|
|
LDA ]1+1
|
|
PHA
|
|
FIN
|
|
LDA ]1
|
|
PHA
|
|
FIN
|
|
<<<
|
|
|
|
PullLong MAC
|
|
DO ]0
|
|
PullWord ]1
|
|
PullWord ]1+2
|
|
ELSE
|
|
PullWord
|
|
PullWord
|
|
FIN
|
|
<<<
|
|
|
|
PullWord MAC
|
|
PLA
|
|
DO ]0
|
|
STA ]1
|
|
FIN
|
|
IF MX/2
|
|
PLA
|
|
DO ]0
|
|
STA ]1+1
|
|
FIN
|
|
FIN
|
|
<<<
|
|
|
|
MoveLong MAC
|
|
MoveWord ]1;]2
|
|
MoveWord ]1+2;]2+2
|
|
<<<
|
|
|
|
MoveWord MAC
|
|
LDA ]1
|
|
STA ]2
|
|
IF MX/2
|
|
LDA ]1+1
|
|
STA ]2+1
|
|
FIN
|
|
<<<
|
|
|
|
MoveBlock MAC ;1st_byte;last_byte;dest
|
|
DO ]2/]1
|
|
DO ]3/]1
|
|
LDX #]2
|
|
LDY #]3+]2-]1
|
|
LDA #]2-]1
|
|
MVP ]1,]3
|
|
ELSE
|
|
LDX #]1
|
|
LDY #]3
|
|
LDA #]2-]1
|
|
MVN ]1,]3
|
|
FIN
|
|
ELSE
|
|
ERR 1 ;Last adrs < first adrs
|
|
FIN
|
|
<<<
|
|
|
|
CmpLong MAC
|
|
LDA ]1
|
|
CMP ]2
|
|
IF #=]1
|
|
LDA ^]1
|
|
ELSE
|
|
LDA ]1+2
|
|
FIN
|
|
IF #=]2
|
|
SBC ^]2
|
|
ELSE
|
|
SBC ]2+2
|
|
FIN
|
|
<<<
|
|
|
|
LONGM MAC
|
|
LONGACC MAC ;Assumes native mode
|
|
IF MX&2 ;If A is now short
|
|
REP %00100000
|
|
FIN
|
|
<<<
|
|
|
|
LONGX MAC
|
|
LONGXY MAC ;Assumes native mode
|
|
IF MX&1 ;If X is now short
|
|
REP %00010000
|
|
FIN
|
|
<<<
|
|
|
|
LONG MAC
|
|
LONGAX MAC ;Assumes native mode
|
|
IF MX ;If not now in full 16
|
|
REP %00110000
|
|
FIN
|
|
<<<
|
|
|
|
SHORTM MAC
|
|
SHORTACC MAC ;Assumes native mode
|
|
IF MX&2 ;If A is now short,
|
|
ELSE ; ignore
|
|
SEP %00100000
|
|
FIN
|
|
<<<
|
|
|
|
SHORTX MAC
|
|
SHORTXY MAC ;Assumes native mode
|
|
IF MX&1 ;If X is now short,
|
|
ELSE ; ignore
|
|
SEP %00010000
|
|
FIN
|
|
<<<
|
|
|
|
SHORT MAC
|
|
SHORTAX MAC ;Assumes native mode
|
|
IF MX!%11 ;If not now in full 8
|
|
SEP %00110000
|
|
FIN
|
|
<<<
|
|
|
|
LONGI MAC ; Duplicates APW function
|
|
LST OFF
|
|
DO ]1 ; If arg = 1 = "on" = make long
|
|
|
|
IF MX-3/-1 ; If M is short and X is long
|
|
; Leave alone
|
|
FIN ; End of this test
|
|
|
|
IF MX/3 ; If M is short and X is short
|
|
MX %10 ; Make X long, leave M short
|
|
FIN ; End of this test
|
|
|
|
IF MX!3/3 ; If M is long and X is long
|
|
FIN ; Leave alone
|
|
|
|
IF MX-2/-1 ; If M is long and X is short
|
|
MX %00 ; Make X long, leave M long
|
|
FIN ; End of this test
|
|
|
|
ELSE ; If arg = 0 = "off" = make short
|
|
|
|
IF MX/3 ; If M is short and X is short
|
|
; Leave alone
|
|
FIN ; End of this test
|
|
|
|
IF MX-3/-1 ; If M is short and X is long
|
|
MX %11 ; Make X short, leave M short
|
|
FIN ; End of this test
|
|
|
|
IF MX-2/-1 ; If M is long and X is short
|
|
; Leave alone
|
|
FIN ; End of this test
|
|
|
|
|
|
IF MX!3/3 ; If M is long and X is long
|
|
MX %01 ; Make X short, leave M long
|
|
FIN ; Leave alone
|
|
|
|
FIN ; End of macro tests
|
|
|
|
LST RTN
|
|
<<<
|
|
|
|
LONGA MAC ; Duplicates APW function
|
|
LST OFF
|
|
DO ]1 ; If arg = 1 = "on" = make long
|
|
|
|
IF MX-3/-1 ; If M is short and X is long
|
|
MX %00 ; Make M long, leave X long
|
|
FIN ; End of this test
|
|
|
|
IF MX/3 ; If M is short and X is short
|
|
MX %01 ; Make M long, leave X short
|
|
FIN ; End of this test
|
|
|
|
IF MX!3/3 ; If M is long and X is long
|
|
FIN ; Leave alone
|
|
|
|
IF MX-2/-1 ; If M is long and X is short
|
|
; Leave alone
|
|
FIN ; End of this test
|
|
|
|
ELSE ; If arg = 0 = "off" = make short
|
|
|
|
IF MX/3 ; If M is short and X is short
|
|
; Leave alone
|
|
FIN ; End of this test
|
|
|
|
IF MX-3/-1 ; If M is short and X is long
|
|
; Leave alone
|
|
FIN ; End of this test
|
|
|
|
IF MX-2/-1 ; If M is long and X is short
|
|
MX %11 ; Make M short, leave X short
|
|
FIN ; End of this test
|
|
|
|
|
|
IF MX!3/3 ; If M is long and X is long
|
|
MX %10 ; Make M short, leave X long
|
|
FIN ; Leave alone
|
|
|
|
FIN ; End of macro tests
|
|
|
|
LST RTN
|
|
<<<
|
|
|
|
M65816 MAC
|
|
DO ]1
|
|
XC
|
|
XC ; Full 65816 mode for assembler
|
|
MX %00
|
|
ELSE
|
|
MX %11 ; 8 bit mode for assembler
|
|
FIN
|
|
<<<
|
|
|
|
Expmac MAC ; Replace APW GEN function
|
|
DO ]1
|
|
EXP ONLY ; Expand macros
|
|
ELSE
|
|
EXP OFF
|
|
FIN
|
|
<<<
|
|
|
|
Tool MAC
|
|
LDX #]1 ; load tool call #
|
|
JSL $E10000 ; go to dispatcher
|
|
<<<
|
|
|
|
**************************************************
|
|
* Auto-menu item macros *
|
|
* This is one alternative for defining a menu *
|
|
* item. It has the advantage of letting you *
|
|
* include specifiers for Bold, Italic, etc. *
|
|
**************************************************
|
|
|
|
*-------------------------------------------------
|
|
* Syntax:
|
|
* ]mnum = 0 ; initialize menu # at startvalue-1
|
|
* Menu ' Menu 1 '
|
|
*
|
|
* (See Menu macro, defined later....)
|
|
*
|
|
* ]inum = 255 ; Menu item starts with #256
|
|
* Item ' Choice 1 ';Kybd;'Bb';Check
|
|
* Ch1 = ]inum ; Set label Ch1 if somewhere else
|
|
* needs to use this item #.
|
|
* Item ' Choice 2 ';Disable;'';Kybd;'Cc'
|
|
* Item ' Choice 3 ';Divide;''
|
|
*
|
|
* Menu ' Menu 2 '
|
|
*
|
|
* Item ' Choice 4 ';Bold;'';Check
|
|
* Item ' Choice 5 ';Italic;'';Blank
|
|
* Item ' Choice 6 ';Underline';Kybd;'Dd'
|
|
*
|
|
* IMPORTANT: ALL items, except for Check and Blank, are followed by a second
|
|
* value. For the Kybd item, the ASCII characters follow in single quotes, Ex:
|
|
* Kybd;'Cc' (specifies Apple-C as an equivalent).
|
|
* All other items use a null 2nd value, as in:
|
|
* Italic;'' or Divide;'' etc.
|
|
*
|
|
* The variable ]inum MUST be initialized for the value of your first
|
|
* menu item MINUS 1 before using the first Item macro.
|
|
*
|
|
* Check or Blank, if used, MUST be the last item in the macro line.
|
|
*
|
|
* There can be up to three parameter pairs after the item name.
|
|
*-------------------------------------------------
|
|
* The point of all this is that rather than hard-
|
|
* code menu items values and subsequent references
|
|
* to that number when disabling menus, etc., this
|
|
* lets you add and delete menu items at will,
|
|
* and have labels like Ch1, etc. above, auto-
|
|
* matically set for the correct value during the
|
|
* assembly.
|
|
*-------------------------------------------------
|
|
|
|
* Equates for Item macro:
|
|
|
|
Bold = 'B' ; bold menu item
|
|
Disable = 'D' ; disabled menu item
|
|
Italic = 'I' ; italic menu item
|
|
Underline = 'U' ; underlined menu item
|
|
Divide = 'V' ; menu dividing line
|
|
ColorHi = 'X' ; color hilite menu item
|
|
Kybd = '*' ; keyboard menu equivalent
|
|
Check = $1243 ; menu item with checkmark
|
|
Blank = $2043 ; menu item with blank
|
|
|
|
*-------------------------------------------------
|
|
|
|
Item MAC ; Macro for creating a menu item
|
|
|
|
ASC '--'
|
|
ASC ]1 ; Text of menu item
|
|
ASC '\H'
|
|
DA ]inum ; Menu item #
|
|
|
|
DO ]0/2 ; Only if more items to do... (>2)
|
|
|
|
DO ]2-Check-1/-1 ; Only if Check item
|
|
DA ]2 ; ]2 = Check
|
|
ELSE ; otherwise kybd char or null
|
|
DO ]2-Blank-1/-1 ; Only if Blank check item
|
|
DA ]2 ; ]2 = Blank
|
|
ELSE
|
|
DB ]2 ; Function char value
|
|
ASC ]3 ; ASCII argument, if any for Kybd
|
|
FIN
|
|
FIN
|
|
|
|
FIN
|
|
|
|
DO ]0/4 ; Only if more items to do... (>3)
|
|
|
|
DO ]4-Check-1/-1 ; Only if Check item
|
|
DA ]4 ; ]4 = Check
|
|
ELSE ; otherwise kybd char or null
|
|
DO ]4-Blank-1/-1 ; Only if Blank check item
|
|
DA ]4 ; ]4 = Blank
|
|
ELSE
|
|
DB ]4 ; Function char value
|
|
ASC ]5 ; ASCII argument, if any for Kybd
|
|
FIN
|
|
FIN
|
|
|
|
FIN
|
|
|
|
DO ]0/6 ; Only if more items to do... (>5)
|
|
|
|
DO ]6-Check-1/-1 ; Only if Check item
|
|
DA ]6 ; ]6 = Check
|
|
ELSE ; otherwise kybd char or null
|
|
DO ]6-Blank-1/-1 ; Only if Blank check item
|
|
DA ]6 ; ]6 = Blank
|
|
ELSE
|
|
DB ]6 ; Function char value
|
|
ASC ]7 ; ASCII argument, if any for Kybd
|
|
FIN
|
|
FIN
|
|
|
|
FIN
|
|
|
|
DB $00 ; End of menu item
|
|
|
|
]inum = ]inum+1
|
|
<<<
|
|
|
|
**************************************************
|
|
* This is another alternative macro for both *
|
|
* menus and menu items. It is simpler, and *
|
|
* more compact, but not as versatile. *
|
|
**************************************************
|
|
|
|
*===============================================
|
|
* Variables ]mnum,]inum should be defined
|
|
* prior to using these MenuMaker macros.
|
|
*
|
|
* They both should be starting value-1
|
|
*
|
|
* Syntax:
|
|
*
|
|
* ]mnum = 0 ; 1st menu number will be 1
|
|
* ]inum = 255 ; 1st menu item number will be 256
|
|
*
|
|
* Menu ' @';X ; Apple menu, color highlighting.
|
|
*
|
|
* MItem ' About... ' ; "About" menu item
|
|
*
|
|
* Menu ' Menu Title 1' ; (this will be menu number 2)
|
|
*
|
|
* MItem ' Choice 1 '
|
|
* MItem ' Choice 2 ';'D*Cc' ; Disabled, kybd char: Cc
|
|
* ; Above will be menu item #'s 2&3
|
|
*
|
|
*
|
|
|
|
|
|
Menu MAC
|
|
ASC '>>'
|
|
ASC ]1
|
|
ASC '\H'
|
|
DA ]mnum
|
|
DO ]0>1
|
|
ASC ]2
|
|
FIN
|
|
DB 0
|
|
]mnum = ]mnum+1
|
|
<<<
|
|
|
|
MItem MAC
|
|
ASC '--'
|
|
ASC ]1
|
|
ASC '\H'
|
|
DA ]inum
|
|
DO ]0>1
|
|
ASC ]2
|
|
FIN
|
|
DB 0
|
|
]inum = ]inum+1
|
|
<<<
|
|
|
|
*-----------------------------------------------------
|
|
*
|
|
* Native -- Processor is in LONG "native" mode.
|
|
* Native Long -- Processor is in LONG "native" mode.
|
|
* Native Short -- Processor is in SHORT "native" mode.
|
|
*
|
|
|
|
Native MAC
|
|
CLC
|
|
XCE
|
|
IF 0=]0 ;If Native (Long)
|
|
LONGAX
|
|
FIN
|
|
|
|
DO ]0
|
|
IF L=]1 ;If Native Long
|
|
LONGAX
|
|
|
|
FIN ;If Native Short only
|
|
FIN ; do CLC, XCE.
|
|
EOM
|
|
|
|
*--------------------------------------------------------
|
|
*
|
|
* Emulation -- Set Processor into "emulation" mode.
|
|
*
|
|
|
|
Emulation MAC
|
|
SEC
|
|
XCE
|
|
EOM
|
|
|
|
*-----------------------------------------------------
|
|
*
|
|
* WriteCh -- Print Character From Accumulator
|
|
* WriteCh ADDR -- Print Character At Label
|
|
* WriteCh ADDR,X -- Print Character At Label,X
|
|
*
|
|
|
|
WriteCh MAC
|
|
DO ]0
|
|
LDA ]1
|
|
FIN
|
|
PHA
|
|
LDX #$180C
|
|
JSL $E10000
|
|
EOM
|
|
|
|
*-----------------------------------------------------
|
|
*
|
|
* ReadCh -- Get Keypress in Accumulator
|
|
* ReadCh ADDR -- Get Keypress in Label
|
|
*
|
|
|
|
ReadCh MAC
|
|
PEA 0
|
|
PEA 1
|
|
LDX #$220C
|
|
JSL $E10000
|
|
PLA
|
|
DO ]0
|
|
STA ]1
|
|
FIN
|
|
EOM
|
|
|
|
*-----------------------------------------------------
|
|
*
|
|
* WriteLn "STRING" -- Print Literal String with CR.
|
|
* WriteLn ADDR -- Print String At Address with CR.
|
|
* WriteLn -- Print CR.
|
|
*
|
|
|
|
WriteLn MAC
|
|
DO ]0
|
|
WriteStr ]1
|
|
FIN
|
|
WriteCh #$8D
|
|
EOM
|
|
|
|
*-----------------------------------------------------
|
|
*
|
|
* WriteStr "STRING" -- Print Literal String.
|
|
* WriteStr ADDR -- Print String At Address.
|
|
* WriteStr -- Print String At A (Lo),Y (Hi).
|
|
*
|
|
|
|
WriteStr MAC
|
|
IF 0=]0 ;If No Label
|
|
PHY
|
|
PHA
|
|
|
|
ELSE
|
|
|
|
IF "=]1
|
|
PEA ^]String
|
|
PEA ]String
|
|
BRL ]Skip
|
|
]String STR ]1
|
|
]Skip
|
|
ELSE
|
|
|
|
IF '=]1
|
|
PEA ^]String
|
|
PEA ]String
|
|
BRL ]Skip
|
|
]String STR ]1
|
|
]Skip
|
|
ELSE
|
|
|
|
PEA ^]1
|
|
PEA ]1
|
|
|
|
FIN
|
|
FIN
|
|
FIN
|
|
LDX #$1C0C
|
|
JSL $E10000
|
|
EOM
|
|
|
|
*-----------------------------------------------------
|
|
*
|
|
* DrawStrHV 8;12;"STRING" Print Literal String on
|
|
* DrawStr 8;12;ADDR Super Hi-Res Screen.
|
|
*
|
|
|
|
DrawStrHV MAC
|
|
HtabVtab ]1;]2
|
|
DrawStr ]3
|
|
<<<
|
|
|
|
*-----------------------------------------------------
|
|
*
|
|
* DrawStr "STRING" -- Print Literal String.
|
|
* DrawStr ADDR -- Print String At Address.
|
|
*
|
|
|
|
DrawStr MAC
|
|
IF "=]1
|
|
PEA ^]String
|
|
PEA ]String
|
|
BRL ]Skip
|
|
]String STR ]1
|
|
]Skip
|
|
ELSE
|
|
IF '=]1
|
|
PEA ^]String
|
|
PEA ]String
|
|
BRL ]Skip
|
|
]String STR ]1
|
|
]Skip
|
|
ELSE
|
|
PEA ^]1
|
|
PEA ]1
|
|
FIN
|
|
FIN
|
|
LDX #$A504 ;DrawString
|
|
JSL $E10000
|
|
<<<
|
|
|
|
*-----------------------------------------------------
|
|
*
|
|
* HtabVtab #8;#12 -- Position at Htab 8, Vtab 12.
|
|
* HtabVtab H;V on super hires screens.
|
|
*
|
|
|
|
HtabVtab MAC
|
|
IF #=]1
|
|
LDA ]1*8
|
|
ELSE
|
|
LDA ]1
|
|
ASL
|
|
ASL
|
|
ASL
|
|
FIN
|
|
PHA
|
|
IF #=]1
|
|
LDA ]2*8
|
|
ELSE
|
|
LDA ]2
|
|
ASL
|
|
ASL
|
|
ASL
|
|
FIN
|
|
PHA
|
|
LDX #$3A04 ;MoveTo
|
|
JSL $E10000
|
|
<<<
|
|
|
|
*-----------------------------------------------------
|
|
*
|
|
* Deref MyHandle;MyPtr -- Uses zero page 0-3 to
|
|
* de-reference a handle.
|
|
*
|
|
|
|
Deref MAC
|
|
LDA ]1
|
|
LDX ]1+2
|
|
STA 0
|
|
STX 2
|
|
LDA [0]
|
|
STA ]2
|
|
LDY #2
|
|
LDA [0],Y
|
|
STA ]2+2
|
|
<<<
|
|
|
|
*==================================================
|
|
* The MLI16 macro assumes the CALLDOS file from the
|
|
* SUBROUT.LIB is linked in. It provides an easy
|
|
* way to make MLI calls. Example syntax:
|
|
*
|
|
* MLI16 close;CLSPARMS
|
|
*--------------------------------------------------
|
|
|
|
MLI16 MAC ;Uses CALLDOS file in the
|
|
IF MX ; subroutine library
|
|
REP %00110000 ;Force full 16-bit mode, if
|
|
FIN ; not already there.
|
|
LDX #]1 ;Call code (use MLI.CODES)
|
|
LDA #]2 ;Low word of PARMS tbl adr
|
|
JSR CALLDOS ;Returns CS if an error
|
|
<<<
|
|
|
|
*=================================================
|
|
* The following macros are APW-equivalents for
|
|
* compatibility with APW style listings.
|
|
*
|
|
* One difference between Merlin and APW here: Instead of
|
|
* using the syntax PULL1 ADDRESS;X, Merlin can take
|
|
* the raw statement PULL1 ADDRESS,X.
|
|
*
|
|
|
|
PULL1 MAC
|
|
SEP #%00100000
|
|
PLA
|
|
REP #%00100000
|
|
DO ]0/1 ;If 1 parm
|
|
IF MX>0
|
|
STA ]1
|
|
FIN
|
|
IF MX=0
|
|
STAL ]1
|
|
FIN
|
|
FIN
|
|
<<<
|
|
|
|
PULL3 MAC
|
|
SEP #%00100000
|
|
PLA
|
|
STA ]1
|
|
REP #%00100000
|
|
PLA
|
|
STA ]1+1
|
|
FIN
|
|
<<<
|
|
|
|
PUSH1 MAC
|
|
SEP #%00100000
|
|
IF ]0/1 ;if one parm
|
|
LDA ]1
|
|
FIN
|
|
PHA
|
|
REP #%00100000
|
|
<<<
|
|
|
|
PUSH3 MAC
|
|
IF #=]1
|
|
LDA #^]1 ;get two hi order bytes
|
|
PHA
|
|
PHB
|
|
LDA #<]1
|
|
STA 1,S
|
|
ELSE
|
|
LDA ]1+1
|
|
PHA
|
|
PHB
|
|
LDA ]1
|
|
STA 1,S
|
|
FIN
|
|
<<<
|
|
|