ram.asm initial commit. Replaced all address defines with labels
Value defines styled without quotes, # moved to load/store/cmp site Added registers.asm (copied from spannerisms JP disassembly) Added a bunch of length annotations Deleted old or trivial commented out code Deleted: ganonfixes.asm, map.asm, seedtag.asm Replaced obsolete credits.asm with creditsnew.asm Moved scratch space at $7F5020-3F to mirrored WRAM (7E1E70-8F) Moved clock RAM to mirrored WRAM (7E1E90-9F) dialog.asm: FreeDungeonItemNotice preserves callee-preserved scratch RAM Toast buffer moved to mirrored WRAM (7E1E0E-0F) servicerequest.asm: long store to $012E converted to word length store
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cassidoxa
@@ -6,13 +6,13 @@
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; $60 - $7E - Reserved
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; $7F - RX Status
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; $80 - $EF - TX Buffer
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; $E0 - $FE - Reserved
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; $F0 - $FE - Reserved
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; $FF - TX Status
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;--------------------------------------------------------------------------------
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; Status Codes
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; #$00 - Idle
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; #$01 - Ready to Read
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; #$FF - Busy
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; $00 - Idle
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; $01 - Ready to Read
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; $FF - Busy
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;--------------------------------------------------------------------------------
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; Service Indexes
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; 0x00 - 0x04 - chests
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@@ -21,80 +21,73 @@
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; 0xF2 - tablet/pedestal
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;--------------------------------------------------------------------------------
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; Block Commands
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!SCM_WAIT = "#$00"
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!SCM_WAIT = $00
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!SCM_SEEN = "#$01"
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!SCM_SHOW = "#$02"
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!SCM_GET = "#$03"
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!SCM_GIVE = "#$04"
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!SCM_PROMPT = "#$05"
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!SCM_SEEN = $01
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!SCM_SHOW = $02
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!SCM_GET = $03
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!SCM_GIVE = $04
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!SCM_PROMPT = $05
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!SCM_AREACHG = "#$10"
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!SCM_DUNGEON = "#$11"
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!SCM_DEATH = "#$12"
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!SCM_SAVEQUIT = "#$13"
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!SCM_FCREATE = "#$14"
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!SCM_FLOAD = "#$15"
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!SCM_FCDELETE = "#$16"
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!SCM_SPAWN = "#$17"
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!SCM_PAUSE = "#$18"
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!SCM_AREACHG = $10
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!SCM_DUNGEON = $11
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!SCM_DEATH = $12
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!SCM_SAVEQUIT = $13
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!SCM_FCREATE = $14
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!SCM_FLOAD = $15
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!SCM_FCDELETE = $16
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!SCM_SPAWN = $17
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!SCM_PAUSE = $18
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!SCM_STALL = "#$70"
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!SCM_RESUME = "#$71"
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!SCM_STALL = $70
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!SCM_RESUME = $71
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!SCM_VERSION = "#$80"
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; ;--------------------------------------------------------------------------------
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!RX_BUFFER = "$7F5300"
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!RX_STATUS = "$7F537F"
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;ServiceSequenceRx = $7EF4A0
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!TX_BUFFER = "$7F5380"
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!TX_STATUS = "$7F53FF"
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;ServiceSequenceTx = $7EF4A0
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!SCM_VERSION = $80
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;--------------------------------------------------------------------------------
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macro ServiceRequestVersion()
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LDA !TX_STATUS : BEQ + : CLC : RTL : + ; return fail if we don't have the lock
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LDA.b #$01 : STA !TX_BUFFER+8 ; version
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LDA.b #$00 : STA !TX_BUFFER+9
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STA !TX_BUFFER+10
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STA !TX_BUFFER+11
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LDA.b !SCM_VERSION : STA !TX_BUFFER
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LDA #$01 : STA !TX_STATUS ; mark ready for reading
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LDA.l TxStatus : BEQ + : CLC : RTL : + ; return fail if we don't have the lock
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LDA.b #$01 : STA.l TxBuffer+8 ; version
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LDA.b #$00 : STA.l TxBuffer+9
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STA.l TxBuffer+10
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STA.l TxBuffer+11
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LDA.b #!SCM_VERSION : STA.l TxBuffer
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LDA.b #$01 : STA.l TxStatus ; mark ready for reading
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SEC ; mark request as successful
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RTL
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endmacro
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;--------------------------------------------------------------------------------
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macro ServiceRequestChest(type)
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LDA !TX_STATUS : BEQ + : CLC : RTL : + ; return fail if we don't have the lock
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LDA $1B : STA !TX_BUFFER+8 ; indoor/outdoor
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LDA.l TxStatus : BEQ + : CLC : RTL : + ; return fail if we don't have the lock
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LDA.b $1B : STA.l TxBuffer+8 ; indoor/outdoor
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BEQ +
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LDA $A0 : STA !TX_BUFFER+9 ; roomid low
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LDA $A1 : STA !TX_BUFFER+10 ; roomid high
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LDA.b $A0 : STA.l TxBuffer+9 ; roomid low
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LDA.b $A1 : STA.l TxBuffer+10 ; roomid high
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BRA ++
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+
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LDA $040A : STA !TX_BUFFER+9 ; area id
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LDA.b #$00 : STA !TX_BUFFER+10 ; protocol defines this as a ushort
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LDA.w $040A : STA.l TxBuffer+9 ; area id
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LDA.b #$00 : STA.l TxBuffer+10 ; protocol defines this as a ushort
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++
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LDA $76 : !SUB #$58 : STA !TX_BUFFER+11 ; object index (type 2 only)
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LDA <type> : STA !TX_BUFFER ; item get
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LDA #$01 : STA !TX_STATUS ; mark ready for reading
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LDA.b $76 : !SUB #$58 : STA.l TxBuffer+11 ; object index (type 2 only)
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LDA.b #<type> : STA.l TxBuffer ; item get
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LDA.b #$01 : STA.l TxStatus ; mark ready for reading
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SEC ; mark request as successful
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RTL
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endmacro
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;--------------------------------------------------------------------------------
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macro ServiceRequest(type,index)
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LDA !TX_STATUS : BEQ + : CLC : RTL : + ; return fail if we don't have the lock
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LDA $1B : STA !TX_BUFFER+8 ; indoor/outdoor
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LDA.l TxStatus : BEQ + : CLC : RTL : + ; return fail if we don't have the lock
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LDA.b $1B : STA.l TxBuffer+8 ; indoor/outdoor
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BEQ +
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LDA $A0 : STA !TX_BUFFER+9 ; roomid low
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LDA $A1 : STA !TX_BUFFER+10 ; roomid high
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LDA.b $A0 : STA.l TxBuffer+9 ; roomid low
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LDA.b $A1 : STA.l TxBuffer+10 ; roomid high
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BRA ++
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+
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LDA $040A : STA !TX_BUFFER+9 ; area id
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LDA.b #$00 : STA !TX_BUFFER+10 ; protocol defines this as a ushort
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LDA.w $040A : STA.l TxBuffer+9 ; area id
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LDA.b #$00 : STA.l TxBuffer+10 ; protocol defines this as a ushort
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++
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LDA <index> : STA !TX_BUFFER+11 ; object index (type 2 only)
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LDA <type> : STA !TX_BUFFER ; item get
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LDA #$01 : STA !TX_STATUS ; mark ready for reading
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LDA.b #<index> : STA.l TxBuffer+11 ; object index (type 2 only)
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LDA.b #<type> : STA.l TxBuffer ; item get
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LDA.b #$01 : STA.l TxStatus ; mark ready for reading
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SEC ; mark request as successful
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RTL
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endmacro
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@@ -102,55 +95,55 @@ endmacro
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PollService:
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PHP
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SEP #$20 ; set 8-bit accumulator
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LDA !RX_STATUS : DEC : BEQ + : PLP : CLC : RTL : + ; return fail if there's nothing to read
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LDA #$FF : STA !RX_STATUS ; stop calls from recursing in
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LDA !RX_BUFFER : CMP.b !SCM_GIVE : BNE + ; give item
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PHY : LDA.l !RX_BUFFER+8 : TAY
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LDA.l !RX_BUFFER+9 : BNE ++
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LDA.l RxStatus : DEC : BEQ + : PLP : CLC : RTL : + ; return fail if there's nothing to read
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LDA.b #$FF : STA.l RxStatus ; stop calls from recursing in
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LDA.l RxBuffer : CMP.b #!SCM_GIVE : BNE + ; give item
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PHY : LDA.l RxBuffer+8 : TAY
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LDA.l RxBuffer+9 : BNE ++
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JSL.l Link_ReceiveItem ; do something else
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PLY : BRA .done
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++
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JSL.l Link_ReceiveItem
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PLY : BRA .done
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+ : CMP.b !SCM_SHOW : BNE + ; show item
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+ : CMP.b #!SCM_SHOW : BNE + ; show item
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; you could check here if you're on the right screen, etc
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LDA.l !RX_BUFFER+12 : JSL.l PrepDynamicTile ; we could properly process the whole message but we're not going to
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LDA.l RxBuffer+12 : JSL.l PrepDynamicTile ; we could properly process the whole message but we're not going to
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BRA .done
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+ : CMP.b !SCM_PROMPT : BNE + ; item prompt
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LDA.l !RX_BUFFER+8 : TAX
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LDA.l !RX_BUFFER+9 : STA $7E012E, X ; set sound effect, could possibly make this STA not-long
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+ : CMP.b #!SCM_PROMPT : BNE + ; item prompt
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LDA.l RxBuffer+8 : TAX
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LDA.l RxBuffer+9 : STA.w $012E, X ; set sound effect
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REP #$30 ; set 16-bit accumulator and index registers
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LDA !RX_BUFFER+10 : TAX
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LDA !RX_BUFFER+12
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LDA.l RxBuffer+10 : TAX
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LDA.l RxBuffer+12
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JSL.l DoToast
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SEP #$30 ; set 8-bit accumulator and index registers
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+ : CMP.b !SCM_VERSION : BNE + ; version
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+ : CMP.b #!SCM_VERSION : BNE + ; version
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%ServiceRequestVersion()
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+
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.done
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LDA #$00 : STA !RX_STATUS ; release lock
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LDA.l #$00 : STA.l RxStatus ; release lock
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PLP
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SEC ; mark request as successful
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RTL
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;--------------------------------------------------------------------------------
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ItemVisualServiceRequest_F0:
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%ServiceRequest(!SCM_SEEN, #$F0)
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%ServiceRequest(!SCM_SEEN, $F0)
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;--------------------------------------------------------------------------------
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ItemVisualServiceRequest_F1:
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%ServiceRequest(!SCM_SEEN, #$F1)
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%ServiceRequest(!SCM_SEEN, $F1)
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;--------------------------------------------------------------------------------
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ItemVisualServiceRequest_F2:
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%ServiceRequest(!SCM_SEEN, #$F2)
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%ServiceRequest(!SCM_SEEN, $F2)
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;--------------------------------------------------------------------------------
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ChestItemServiceRequest:
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%ServiceRequestChest(!SCM_GET)
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;--------------------------------------------------------------------------------
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ItemGetServiceRequest_F0:
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%ServiceRequest(!SCM_GET, #$F0)
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%ServiceRequest(!SCM_GET, $F0)
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;--------------------------------------------------------------------------------
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ItemGetServiceRequest_F1:
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%ServiceRequest(!SCM_GET, #$F1)
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%ServiceRequest(!SCM_GET, $F1)
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;--------------------------------------------------------------------------------
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ItemGetServiceRequest_F2:
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%ServiceRequest(!SCM_GET, #$F2)
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%ServiceRequest(!SCM_GET, $F2)
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;--------------------------------------------------------------------------------
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