mirror of
https://github.com/lscharen/iigs-game-engine.git
synced 2024-11-26 07:49:17 +00:00
797 lines
22 KiB
ArmAsm
797 lines
22 KiB
ArmAsm
*=================================================
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* Utility Macros - from Merlin disk
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* by Dave Klimas, et al
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*
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* Copyright Apple Computer, Inc. 1986, 1987
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* and Roger Wagner Publishing, Inc. 1988
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* All Rights Reserved
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*-------------------------------------------------
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PHWL MAC
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PHW ]1
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PHL ]2
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<<<
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PHLW MAC
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PHL ]1
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PHW ]2
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<<<
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PxW MAC
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DO ]0/1
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PHW ]1
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DO ]0/2
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PHW ]2
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DO ]0/3
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PHW ]3
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DO ]0/4
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PHW ]4
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FIN
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FIN
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FIN
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FIN
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<<<
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PxL MAC
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DO ]0/1
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PHL ]1
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DO ]0/2
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PHL ]2
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DO ]0/3
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PHL ]3
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DO ]0/4
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PHL ]4
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FIN
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FIN
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FIN
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FIN
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<<<
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P2SL MAC
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PHA
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P1SL MAC
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PHA
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PHL MAC
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IF #=]1
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PEA ^]1
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ELSE
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PHW ]1+2
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FIN
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PHW ]1
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<<<
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P2SW MAC
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PHA
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P1SW MAC
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PHA
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PHW MAC
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IF #=]1
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PEA ]1
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ELSE
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IF MX/2
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LDA ]1+1
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PHA
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FIN
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LDA ]1
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PHA
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FIN
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<<<
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PushSpace MAC
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PHS MAC
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DO ]0
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LUP ]1
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PHA
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--^
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ELSE
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PHA
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FIN
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<<<
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********************************
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Push4 MAC
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PushLong #0
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PushLong #0
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<<<
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PushPtr MAC
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PEA ^]1
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PEA ]1
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EOM
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PushLong MAC
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IF #=]1
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PushWord #^]1
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ELSE
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PushWord ]1+2
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FIN
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PushWord ]1
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<<<
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PushWord MAC
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IF #=]1
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PEA ]1
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ELSE
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IF MX/2
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LDA ]1+1
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PHA
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FIN
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LDA ]1
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PHA
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FIN
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<<<
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PullLong MAC
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DO ]0
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PullWord ]1
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PullWord ]1+2
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ELSE
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PullWord
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PullWord
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FIN
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<<<
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PullWord MAC
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PLA
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DO ]0
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STA ]1
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FIN
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IF MX/2
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PLA
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DO ]0
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STA ]1+1
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FIN
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FIN
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<<<
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MoveLong MAC
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MoveWord ]1;]2
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MoveWord ]1+2;]2+2
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<<<
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MoveWord MAC
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LDA ]1
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STA ]2
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IF MX/2
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LDA ]1+1
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STA ]2+1
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FIN
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<<<
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MoveBlock MAC ;1st_byte;last_byte;dest
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DO ]2/]1
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DO ]3/]1
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LDX #]2
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LDY #]3+]2-]1
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LDA #]2-]1
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MVP ]1,]3
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ELSE
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LDX #]1
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LDY #]3
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LDA #]2-]1
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MVN ]1,]3
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FIN
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ELSE
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ERR 1 ;Last adrs < first adrs
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FIN
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<<<
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CmpLong MAC
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LDA ]1
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CMP ]2
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IF #=]1
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LDA ^]1
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ELSE
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LDA ]1+2
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FIN
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IF #=]2
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SBC ^]2
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ELSE
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SBC ]2+2
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FIN
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<<<
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LONGM MAC
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LONGACC MAC ;Assumes native mode
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IF MX&2 ;If A is now short
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REP %00100000
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FIN
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<<<
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LONGX MAC
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LONGXY MAC ;Assumes native mode
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IF MX&1 ;If X is now short
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REP %00010000
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FIN
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<<<
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LONG MAC
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LONGAX MAC ;Assumes native mode
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IF MX ;If not now in full 16
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REP %00110000
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FIN
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<<<
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SHORTM MAC
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SHORTACC MAC ;Assumes native mode
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IF MX&2 ;If A is now short,
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ELSE ; ignore
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SEP %00100000
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FIN
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<<<
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SHORTX MAC
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SHORTXY MAC ;Assumes native mode
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IF MX&1 ;If X is now short,
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ELSE ; ignore
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SEP %00010000
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FIN
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<<<
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SHORT MAC
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SHORTAX MAC ;Assumes native mode
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IF MX!%11 ;If not now in full 8
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SEP %00110000
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FIN
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<<<
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LONGI MAC ; Duplicates APW function
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LST OFF
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DO ]1 ; If arg = 1 = "on" = make long
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IF MX-3/-1 ; If M is short and X is long
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; Leave alone
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FIN ; End of this test
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IF MX/3 ; If M is short and X is short
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MX %10 ; Make X long, leave M short
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FIN ; End of this test
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IF MX!3/3 ; If M is long and X is long
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FIN ; Leave alone
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IF MX-2/-1 ; If M is long and X is short
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MX %00 ; Make X long, leave M long
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FIN ; End of this test
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ELSE ; If arg = 0 = "off" = make short
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IF MX/3 ; If M is short and X is short
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; Leave alone
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FIN ; End of this test
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IF MX-3/-1 ; If M is short and X is long
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MX %11 ; Make X short, leave M short
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FIN ; End of this test
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IF MX-2/-1 ; If M is long and X is short
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; Leave alone
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FIN ; End of this test
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IF MX!3/3 ; If M is long and X is long
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MX %01 ; Make X short, leave M long
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FIN ; Leave alone
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FIN ; End of macro tests
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LST RTN
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<<<
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LONGA MAC ; Duplicates APW function
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LST OFF
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DO ]1 ; If arg = 1 = "on" = make long
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IF MX-3/-1 ; If M is short and X is long
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MX %00 ; Make M long, leave X long
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FIN ; End of this test
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IF MX/3 ; If M is short and X is short
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MX %01 ; Make M long, leave X short
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FIN ; End of this test
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IF MX!3/3 ; If M is long and X is long
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FIN ; Leave alone
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IF MX-2/-1 ; If M is long and X is short
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; Leave alone
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FIN ; End of this test
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ELSE ; If arg = 0 = "off" = make short
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IF MX/3 ; If M is short and X is short
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; Leave alone
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FIN ; End of this test
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IF MX-3/-1 ; If M is short and X is long
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; Leave alone
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FIN ; End of this test
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IF MX-2/-1 ; If M is long and X is short
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MX %11 ; Make M short, leave X short
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FIN ; End of this test
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IF MX!3/3 ; If M is long and X is long
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MX %10 ; Make M short, leave X long
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FIN ; Leave alone
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FIN ; End of macro tests
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LST RTN
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<<<
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M65816 MAC
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DO ]1
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XC
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XC ; Full 65816 mode for assembler
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MX %00
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ELSE
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MX %11 ; 8 bit mode for assembler
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FIN
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<<<
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Expmac MAC ; Replace APW GEN function
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DO ]1
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EXP ONLY ; Expand macros
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ELSE
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EXP OFF
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FIN
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<<<
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Tool MAC
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LDX #]1 ; load tool call #
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JSL $E10000 ; go to dispatcher
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<<<
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**************************************************
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* Auto-menu item macros *
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* This is one alternative for defining a menu *
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* item. It has the advantage of letting you *
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* include specifiers for Bold, Italic, etc. *
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**************************************************
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*-------------------------------------------------
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* Syntax:
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* ]mnum = 0 ; initialize menu # at startvalue-1
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* Menu ' Menu 1 '
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*
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* (See Menu macro, defined later....)
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*
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* ]inum = 255 ; Menu item starts with #256
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* Item ' Choice 1 ';Kybd;'Bb';Check
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* Ch1 = ]inum ; Set label Ch1 if somewhere else
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* needs to use this item #.
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* Item ' Choice 2 ';Disable;'';Kybd;'Cc'
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* Item ' Choice 3 ';Divide;''
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*
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* Menu ' Menu 2 '
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*
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* Item ' Choice 4 ';Bold;'';Check
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* Item ' Choice 5 ';Italic;'';Blank
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* Item ' Choice 6 ';Underline';Kybd;'Dd'
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*
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* IMPORTANT: ALL items, except for Check and Blank, are followed by a second
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* value. For the Kybd item, the ASCII characters follow in single quotes, Ex:
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* Kybd;'Cc' (specifies Apple-C as an equivalent).
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* All other items use a null 2nd value, as in:
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* Italic;'' or Divide;'' etc.
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*
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* The variable ]inum MUST be initialized for the value of your first
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* menu item MINUS 1 before using the first Item macro.
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*
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* Check or Blank, if used, MUST be the last item in the macro line.
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*
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* There can be up to three parameter pairs after the item name.
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*-------------------------------------------------
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* The point of all this is that rather than hard-
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* code menu items values and subsequent references
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* to that number when disabling menus, etc., this
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* lets you add and delete menu items at will,
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* and have labels like Ch1, etc. above, auto-
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* matically set for the correct value during the
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* assembly.
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*-------------------------------------------------
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* Equates for Item macro:
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Bold = 'B' ; bold menu item
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Disable = 'D' ; disabled menu item
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Italic = 'I' ; italic menu item
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Underline = 'U' ; underlined menu item
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Divide = 'V' ; menu dividing line
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ColorHi = 'X' ; color hilite menu item
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Kybd = '*' ; keyboard menu equivalent
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Check = $1243 ; menu item with checkmark
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Blank = $2043 ; menu item with blank
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*-------------------------------------------------
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Item MAC ; Macro for creating a menu item
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ASC '--'
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ASC ]1 ; Text of menu item
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ASC '\H'
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DA ]inum ; Menu item #
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DO ]0/2 ; Only if more items to do... (>2)
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DO ]2-Check-1/-1 ; Only if Check item
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DA ]2 ; ]2 = Check
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ELSE ; otherwise kybd char or null
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DO ]2-Blank-1/-1 ; Only if Blank check item
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DA ]2 ; ]2 = Blank
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ELSE
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DB ]2 ; Function char value
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ASC ]3 ; ASCII argument, if any for Kybd
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FIN
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FIN
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FIN
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DO ]0/4 ; Only if more items to do... (>3)
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DO ]4-Check-1/-1 ; Only if Check item
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DA ]4 ; ]4 = Check
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ELSE ; otherwise kybd char or null
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DO ]4-Blank-1/-1 ; Only if Blank check item
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DA ]4 ; ]4 = Blank
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ELSE
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DB ]4 ; Function char value
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ASC ]5 ; ASCII argument, if any for Kybd
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FIN
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FIN
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FIN
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DO ]0/6 ; Only if more items to do... (>5)
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DO ]6-Check-1/-1 ; Only if Check item
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DA ]6 ; ]6 = Check
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ELSE ; otherwise kybd char or null
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DO ]6-Blank-1/-1 ; Only if Blank check item
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DA ]6 ; ]6 = Blank
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ELSE
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DB ]6 ; Function char value
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ASC ]7 ; ASCII argument, if any for Kybd
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FIN
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FIN
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FIN
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DB $00 ; End of menu item
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]inum = ]inum+1
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<<<
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**************************************************
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* This is another alternative macro for both *
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* menus and menu items. It is simpler, and *
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* more compact, but not as versatile. *
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**************************************************
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*===============================================
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* Variables ]mnum,]inum should be defined
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* prior to using these MenuMaker macros.
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*
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* They both should be starting value-1
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*
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* Syntax:
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*
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* ]mnum = 0 ; 1st menu number will be 1
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* ]inum = 255 ; 1st menu item number will be 256
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*
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* Menu ' @';X ; Apple menu, color highlighting.
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*
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* MItem ' About... ' ; "About" menu item
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*
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* Menu ' Menu Title 1' ; (this will be menu number 2)
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*
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* MItem ' Choice 1 '
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* MItem ' Choice 2 ';'D*Cc' ; Disabled, kybd char: Cc
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* ; Above will be menu item #'s 2&3
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*
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*
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Menu MAC
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ASC '>>'
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ASC ]1
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ASC '\H'
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DA ]mnum
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DO ]0>1
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ASC ]2
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FIN
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DB 0
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]mnum = ]mnum+1
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<<<
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MItem MAC
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ASC '--'
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ASC ]1
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ASC '\H'
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DA ]inum
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DO ]0>1
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ASC ]2
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FIN
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DB 0
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]inum = ]inum+1
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<<<
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*-----------------------------------------------------
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*
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* Native -- Processor is in LONG "native" mode.
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* Native Long -- Processor is in LONG "native" mode.
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* Native Short -- Processor is in SHORT "native" mode.
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*
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Native MAC
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CLC
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XCE
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IF 0=]0 ;If Native (Long)
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LONGAX
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FIN
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DO ]0
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IF L=]1 ;If Native Long
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LONGAX
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FIN ;If Native Short only
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FIN ; do CLC, XCE.
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EOM
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*--------------------------------------------------------
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*
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* Emulation -- Set Processor into "emulation" mode.
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*
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Emulation MAC
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SEC
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XCE
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EOM
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*-----------------------------------------------------
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*
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* WriteCh -- Print Character From Accumulator
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* WriteCh ADDR -- Print Character At Label
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* WriteCh ADDR,X -- Print Character At Label,X
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*
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WriteCh MAC
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DO ]0
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LDA ]1
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FIN
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PHA
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LDX #$180C
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JSL $E10000
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EOM
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*-----------------------------------------------------
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*
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* ReadCh -- Get Keypress in Accumulator
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* ReadCh ADDR -- Get Keypress in Label
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*
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ReadCh MAC
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PEA 0
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PEA 1
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LDX #$220C
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JSL $E10000
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PLA
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DO ]0
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STA ]1
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FIN
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EOM
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*-----------------------------------------------------
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*
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* WriteLn "STRING" -- Print Literal String with CR.
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* WriteLn ADDR -- Print String At Address with CR.
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* WriteLn -- Print CR.
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*
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WriteLn MAC
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DO ]0
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WriteStr ]1
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FIN
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WriteCh #$8D
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EOM
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*-----------------------------------------------------
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*
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* WriteStr "STRING" -- Print Literal String.
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* WriteStr ADDR -- Print String At Address.
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* WriteStr -- Print String At A (Lo),Y (Hi).
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*
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WriteStr MAC
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IF 0=]0 ;If No Label
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PHY
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PHA
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ELSE
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IF "=]1
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PEA ^]String
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PEA ]String
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BRL ]Skip
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]String STR ]1
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]Skip
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ELSE
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IF '=]1
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PEA ^]String
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PEA ]String
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BRL ]Skip
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]String STR ]1
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]Skip
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ELSE
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PEA ^]1
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PEA ]1
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FIN
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FIN
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FIN
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LDX #$1C0C
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JSL $E10000
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EOM
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*-----------------------------------------------------
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*
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* DrawStrHV 8;12;"STRING" Print Literal String on
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* DrawStr 8;12;ADDR Super Hi-Res Screen.
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*
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DrawStrHV MAC
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HtabVtab ]1;]2
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DrawStr ]3
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<<<
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*-----------------------------------------------------
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*
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* DrawStr "STRING" -- Print Literal String.
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* DrawStr ADDR -- Print String At Address.
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*
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|
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DrawStr MAC
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IF "=]1
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PEA ^]String
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|
PEA ]String
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BRL ]Skip
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|
]String STR ]1
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]Skip
|
|
ELSE
|
|
IF '=]1
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|
PEA ^]String
|
|
PEA ]String
|
|
BRL ]Skip
|
|
]String STR ]1
|
|
]Skip
|
|
ELSE
|
|
PEA ^]1
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|
PEA ]1
|
|
FIN
|
|
FIN
|
|
LDX #$A504 ;DrawString
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|
JSL $E10000
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|
<<<
|
|
|
|
*-----------------------------------------------------
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*
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|
* HtabVtab #8;#12 -- Position at Htab 8, Vtab 12.
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|
* HtabVtab H;V on super hires screens.
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|
*
|
|
|
|
HtabVtab MAC
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|
IF #=]1
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|
LDA ]1*8
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|
ELSE
|
|
LDA ]1
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|
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
|
|
<<<
|
|
|