2004-03-11 21:54:22 +00:00
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;
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; Oliver Schmidt, 08.03.2004
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;
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; Identify DOS version we're running on as one of these:
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;
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2005-03-26 17:03:30 +00:00
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; AppleDOS 3.3 - $00
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; ProDOS 8 1.0.1 - $10
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; ProDOS 8 1.0.2 - $10
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; ProDOS 8 1.1.1 - $11
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; ProDOS 8 1.2 - $12
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; ProDOS 8 1.3 - $13
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; ProDOS 8 1.4 - $14
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; ProDOS 8 1.5 - $15
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; ProDOS 8 1.6 - $16
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; ProDOS 8 1.7 - $17
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; ProDOS 8 1.8 - $18
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; ProDOS 8 1.9 - $18
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; ProDOS 8 2.0.1 - $21
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; ProDOS 8 2.0.2 - $22
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; ProDOS 8 2.0.3 - $23
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;
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2004-03-11 21:54:22 +00:00
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2011-01-29 21:39:17 +00:00
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.constructor initdostype, 25
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2005-04-05 21:11:10 +00:00
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.export __dos_type
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2004-03-11 21:54:22 +00:00
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2005-04-05 21:11:10 +00:00
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.include "mli.inc"
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2004-03-11 21:54:22 +00:00
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; Identify DOS version according to:
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2005-11-21 20:52:41 +00:00
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; - Beneath Apple ProDOS, chapter 6-63
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; - Apple II ProDOS 8 TechNote #23, ProDOS 8 Changes and Minutia
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2004-03-11 21:54:22 +00:00
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; - ProDOS TechRefMan, chapter 5.2.4
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2016-03-06 20:26:22 +00:00
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.segment "ONCE"
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2005-02-26 09:34:01 +00:00
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2004-03-11 21:54:22 +00:00
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initdostype:
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2009-09-12 06:58:20 +00:00
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lda $BF00
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2013-05-09 11:56:54 +00:00
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cmp #$4C ; Is MLI present? (JMP opcode)
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2005-04-05 21:11:10 +00:00
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bne done
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2013-05-09 11:56:54 +00:00
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lda KVERSION ; ProDOS 8 kernel version
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2005-04-05 21:11:10 +00:00
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cmp #$10
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bcs :+
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2013-05-09 11:56:54 +00:00
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ora #$10 ; Make high nibble match major version
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2005-04-05 21:11:10 +00:00
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: sta __dos_type
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2005-03-26 17:03:30 +00:00
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done: rts
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2004-03-11 21:54:22 +00:00
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2016-03-16 15:28:32 +00:00
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.data
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2004-03-11 21:54:22 +00:00
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2016-03-16 15:28:32 +00:00
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__dos_type: .byte $00
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