BROKEN: multiple patterns. Committing to sync
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main.usm
38
main.usm
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@ -60,7 +60,7 @@
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#10 .Playback/speed STZ
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#00 .Playback/pattern-index STZ
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;update-pattern-addr JSR2
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;load-pattern JSR2
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( display/audio init )
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;on-frame .Screen/vector DEO2
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@ -81,11 +81,25 @@
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BRK
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( TODO either alloc or get-selected-addr is breaking things. Fix tomorrow. )
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@alloc-pattern ( number -- ) ( allocates pattern n in the pattern table in a new area of memory. WILL OVERWRITE! )
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#02 MUL #00 SWP ;pattern-table ADD2 ;pattern-pointer LDA2 SWP2 STA2 ( store current position of pattern pointer in pattern table for this pattern )
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PTN_LEN PTN_WIDTH MUL2 ;pattern-pointer LDA2 ADD2 ;pattern-pointer STA2
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RTN
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@get-selected-addr ( -- addr* ) ( get the address of the current selection in the pattern )
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.Playback/pattern-addr LDZ2 #00 .Edit/selection-x LDZ ADD2 #00 .Edit/selection-y LDZ PTN_WIDTH MUL2 ADD2
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RTN
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@update-pattern-addr ( -- )
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( loads the pattern pointed to by Playback/pattern-index. Allocs it if it doesn't exist. )
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@load-pattern ( number -- )
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.Playback/pattern-index LDZ #02 MUL #00 SWP ;pattern-table ADD2 LDA2 ( get current pattern address )
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DUP2 #0000 NEQ ,&exists JCN ( if the pattern exists, don't alloc a new one )
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.Playback/pattern-index LDZ ;alloc-pattern JSR2
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&exists
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POP2
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.Playback/pattern-index LDZ #02 MUL #00 SWP ;pattern-table ADD2 LDA2 .Playback/pattern-addr STZ2
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RTN
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@ -137,9 +151,25 @@ RTN
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.Controller/key DEI DUP
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;handle-editing JSR2
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( play/pause )
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#70 NEQ ,&end JCN
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DUP #70 EQU ,&pause JCN
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DUP #3e EQU ,&next-pattern JCN
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#3c EQU ,&prev-pattern JCN
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.Playback/pattern-addr LDZ2 .Console/short DEO2
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BRK
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&pause
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POP
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.Playback/playing LDZ #00 EQU .Playback/playing STZ
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&end
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BRK
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&next-pattern ( TODO bounds checking to 127 )
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POP
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.Playback/pattern-index LDZ #01 ADD .Playback/pattern-index STZ
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;load-pattern JSR2
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BRK
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&prev-pattern ( TODO bounds checking to 127 )
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POP
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.Playback/pattern-index LDZ #01 SUB .Playback/pattern-index STZ
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;load-pattern JSR2
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BRK
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BRK
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@on-frame ( -> )
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