mirror of
https://github.com/tjboldt/ProDOS-ROM-Drive.git
synced 2024-11-22 02:30:59 +00:00
47 lines
725 B
NASM
47 lines
725 B
NASM
printChar = $FDED
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home = $FC58
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.org $2000
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jsr home
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ldy #$0
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nextChar:
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lda text,y
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beq infiniteLoop
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jsr printChar
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iny
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clc
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bcc nextChar
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infiniteLoop:
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clc
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bcc infiniteLoop ;hang for eternity
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.macro aschi str
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.repeat .strlen (str), c
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.byte .strat (str, c) | $80
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.endrep
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.endmacro
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text:
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aschi "Block 0001 normally reserved for SOS"
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.byte $8D
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aschi "boot contains the firmware for the"
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.byte $8D
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aschi "ProDOS ROM-Drive."
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.byte $8D
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.byte $8D
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aschi "(c)1998 - 2021 Terence J. Boldt"
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.byte $8D
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.byte $8D
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aschi "github.com/tjboldt/ProDOS-ROMDrive"
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.byte $8D
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.byte $8D
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aschi "Do NOT overwrite Block 0001"
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end:
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.byte 0
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.repeat 255-<end
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.byte 0
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.endrepeat
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