mirror of https://git.sr.ht/~rabbits/uxn
68 lines
971 B
Plaintext
68 lines
971 B
Plaintext
( Loop )
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;a { byte 1 } ;b { byte 1 } ;c { byte 1 }
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|0100 @RESET
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,slow-muljmp JSR2
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,slow-jmppop JSR2
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,slow-jmppop-rel JSR2
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,fast-byte JSR2
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,fast-short JSR2
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BRK
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|0200 @slow-muljmp ( type: padded muljmp )
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$loop NOP
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~a #01 ADD =a
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~a #d0 LTH ^$loop MUL JMP
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~a =Console.byte
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RTN
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|0300 @slow-jmppop ( type: jmppop )
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$loop
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~b #01 ADD =b
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,$loop ~b #d0 LTH JMP2?
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~b =Console.byte
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RTN
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|0400 @slow-jmppop-rel ( type: padded jmppop )
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$loop NOP
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~c #01 ADD =c
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~c #d0 LTH ^$loop SWP JMP?
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~c =Console.byte
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RTN
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|0500 @fast-byte ( fast byte )
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#00 #d0
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$loop NOP
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( incr ) SWP #01 ADD SWP
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DUP2 LTH ^$loop SWP JMP?
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POP =Console.byte
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RTN
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|0600 @fast-short ( fast short )
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#0000 #0d00
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$loop NOP
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( incr ) SWP2 #0001 ADD2 SWP2
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OVR2 OVR2 LTH2 ^$loop SWP JMP?
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POP2 =Console.short
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RTN
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|c000 @FRAME
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|d000 @ERROR
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|FF00 ;Console { pad 8 char 1 byte 1 short 2 }
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|FFF0 .RESET .FRAME .ERROR ( vectors )
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|FFF8 [ 13fd 1ef3 1bf2 ] ( palette ) |