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27 lines
858 B
NASM
27 lines
858 B
NASM
.CR 6502
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.TF music.hex,hex
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.LF music.list
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;
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; MUSIC PLAYER FOR THE BE6502 USING '6502 GAMES' HARDWARE. BOARD SHOULD BE
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; JUMPERED WITH VIA CHIPS AT THE ADDRESSES SPECIFIED BELOW. OTHER THAN THAT
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; THE CODE IS UNCHANGED FROM THE BOOK.
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;
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VIA1 .EQ $4000 ; GAME BOARD (VIA #1)
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VIA3 .EQ $4C00 ; GAME BOARD (VIA #3)
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DDR3A .EQ VIA3+3
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DDR3B .EQ VIA3+2
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PORT3A .EQ VIA3+1
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PORT3B .EQ VIA3
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.OR $8000
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.TA $0000
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BE6502 JSR INITKEY
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.IN ../../common/CH02-Music/player.asm
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.IN ../../common/CH01-Getkey/getkey_routine.asm
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;
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; STORE CPU INITIALIZATION VECTORS AT THE END OF THE EEPROM.
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;
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.NO $FFFA,$FF
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.DA BE6502 ; NMI VECTOR
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.DA BE6502 ; RESET VECTOR
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.DA BE6502 ; IRQ VECTOR |