put engine into seperate file
This commit is contained in:
parent
d876da7e11
commit
17fa654536
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@ -0,0 +1,96 @@
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@k-tick
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&run
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.kalama/tick LDZ #01 ADD DUP
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.kalama/speed LDZ EQU ,&play JCN
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.kalama/tick STZ
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RTN
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&play
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#ff .kalama/tick STZ
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.kalama/line LDZ #01 ADD DUP
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DUP #00 SWP #0003 MUL2
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#00 ;k-get-pattern/run JSR2 ADD2 ;k-play-line/run JSR2
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#0f EQU ,&next JCN
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.kalama/line STZ
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RTN
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&next
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( TODO next pattern )
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#ff .kalama/line STZ
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RTN
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( initialises kalama with module data )
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@k-init-module ( addr* -- )
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&run
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DUP2 .kalama/module STZ2 ( store module address )
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DUP2 LDA #0f AND .kalama/speed STZ ( set speed )
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#0001 ADD2 LDA ( get pattern count byte )
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;k-get-pattern/run JSR2 ( get the "pattern" that is 1 over the pattern index numbers. This is the first byte of the instruments )
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.kalama/instruments STZ2
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#ff .kalama/tick STZ
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#ff .kalama/line STZ
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RTN
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( gets the memory address of the given pattern in loaded module )
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@k-get-pattern ( number -- addr* )
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&run
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#00 SWP #0030 MUL2
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.kalama/module LDZ2
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#0003 ADD2 ( skip header )
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DUP2 LDA2 ADD2 ( skip song table body )
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#0002 ADD2 ( skip song table size short )
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ADD2
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RTN
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( gets the memory address of the given instrument in loaded module )
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@k-get-instrument ( number -- addr* )
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&run
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STH ( store instrument number for later )
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.kalama/instruments LDZ2
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( we are now at the size byte of instrument 00, the start of instrument memory )
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&loop
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STHrk #00 EQU ,&end JCN
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STHr #01 SUB STH ( decrement counter )
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DUP2 LDA2 ( load length byte and convert to short )
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#0006 ADD2 ( jump over length short, vol, flags, ADSR )
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ADD2 ( jump to next pattern )
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,&loop JMP
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&end
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POPr
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RTN
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@k-play-line ( *l -- )
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&run
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LDA DUP
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#00 EQU ,&rest JCN
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.Audio0/pitch DEO ( TODO use correct channel, effects )
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RTN
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&rest
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POP
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RTN
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( loads instrument with number into specified audio channel, 0-indexed )
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@k-load-instrument ( number channel -- )
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&run
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#10 MUL STH ( stash channel * 0x10, offset for that channel's data relative to Audio0 )
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;k-get-instrument JSR2 ( get instrument location )
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DUP2 LDA2 STHrk .Audio0/length ADD DEO2 ( copy ADSR value )
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#0002 ADD2 ( move to volume value )
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DUP2 LDA STHrk .Audio0/volume ADD DEO ( copy volume value )
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#0001 ADD2 DUP2 ( move to flags value )
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LDA #07 SFT ( MSB is set for looping sample, turn it into 0/1 )
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DUP ( set or clear loop bit )
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#00 EQU ,&clear JCN
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STHrk SFT .kalama/loopflags LDZ ORA .kalama/loopflags STZ ( set bit on )
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,&end JMP
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&clear
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STHrk SFT #ff EOR .kalama/loopflags LDZ AND .kalama/loopflags STZ ( set bit off )
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&end
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#0001 ADD2 LDA2 STHrk .Audio0/adsr DEO2 ( copy ADSR value )
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POPr
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RTN
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98
player.tal
98
player.tal
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@ -52,102 +52,6 @@ BRK
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;k-tick/run JSR2
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BRK
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@k-tick
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&run
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.kalama/tick LDZ #01 ADD DUP
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.kalama/speed LDZ EQU ,&play JCN
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.kalama/tick STZ
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RTN
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&play
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#ff .kalama/tick STZ
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.kalama/line LDZ #01 ADD DUP
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DUP #00 SWP #0003 MUL2
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#00 ;k-get-pattern/run JSR2 ADD2 ;k-play-line/run JSR2
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#0f EQU ,&next JCN
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.kalama/line STZ
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RTN
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&next
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( TODO next pattern )
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#ff .kalama/line STZ
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RTN
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( initialises kalama with module data )
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@k-init-module ( addr* -- )
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&run
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DUP2 .kalama/module STZ2 ( store module address )
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DUP2 LDA #0f AND .kalama/speed STZ ( set speed )
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#0001 ADD2 LDA ( get pattern count byte )
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;k-get-pattern/run JSR2 ( get the "pattern" that is 1 over the pattern index numbers. This is the first byte of the instruments )
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.kalama/instruments STZ2
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#ff .kalama/tick STZ
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#ff .kalama/line STZ
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RTN
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( gets the memory address of the given pattern in loaded module )
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@k-get-pattern ( number -- addr* )
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&run
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#00 SWP #0030 MUL2
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.kalama/module LDZ2
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#0003 ADD2 ( skip header )
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DUP2 LDA2 ADD2 ( skip song table body )
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#0002 ADD2 ( skip song table size short )
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ADD2
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RTN
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( gets the memory address of the given instrument in loaded module )
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@k-get-instrument ( number -- addr* )
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&run
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STH ( store instrument number for later )
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.kalama/instruments LDZ2
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( we are now at the size byte of instrument 00, the start of instrument memory )
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&loop
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STHrk #00 EQU ,&end JCN
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STHr #01 SUB STH ( decrement counter )
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DUP2 LDA2 ( load length byte and convert to short )
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#0006 ADD2 ( jump over length short, vol, flags, ADSR )
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ADD2 ( jump to next pattern )
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,&loop JMP
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&end
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POPr
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RTN
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@k-play-line ( *l -- )
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&run
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LDA DUP
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#00 EQU ,&rest JCN
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.Audio0/pitch DEO ( TODO use correct channel, effects )
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RTN
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&rest
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POP
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RTN
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( loads instrument with number into specified audio channel, 0-indexed )
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@k-load-instrument ( number channel -- )
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&run
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#10 MUL STH ( stash channel * 0x10, offset for that channel's data relative to Audio0 )
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;k-get-instrument JSR2 ( get instrument location )
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DUP2 LDA2 STHrk .Audio0/length ADD DEO2 ( copy ADSR value )
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#0002 ADD2 ( move to volume value )
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DUP2 LDA STHrk .Audio0/volume ADD DEO ( copy volume value )
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#0001 ADD2 DUP2 ( move to flags value )
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LDA #07 SFT ( MSB is set for looping sample, turn it into 0/1 )
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DUP ( set or clear loop bit )
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#00 EQU ,&clear JCN
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STHrk SFT .kalama/loopflags LDZ ORA .kalama/loopflags STZ ( set bit on )
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,&end JMP
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&clear
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STHrk SFT #ff EOR .kalama/loopflags LDZ AND .kalama/loopflags STZ ( set bit off )
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&end
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#0001 ADD2 LDA2 STHrk .Audio0/adsr DEO2 ( copy ADSR value )
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POPr
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RTN
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@print-hex ( value* -- )
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@ -180,6 +84,8 @@ RTN
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RTN
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~engine.tal
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@module
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88 02 02 ( file header - speed 8, loop on, 2 patterns, 2 instruments )
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0008 ( size )
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