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6892040ea8
First, make the per-segment comments and notes optional. Second, add an "offset segment by $0100" feature that tries to shift each segment forward 256 bytes. Doing so avoids potential ambiguity with direct page locations. The 20212-reloc-data test no longer has the per-segment comments.
61 lines
2.1 KiB
ArmAsm
61 lines
2.1 KiB
ArmAsm
; Copyright 2020 faddenSoft. All Rights Reserved.
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; See the LICENSE.txt file for distribution terms (Apache 2.0).
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;
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; Merlin 32 link file.
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;
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; According to the documentation we can use ORG directives to set the segment
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; load addresses, but in practice Merlin 32 rejects them. Also, DS
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; directives are ignored, and KND uses a different default value than
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; what the documentation says.
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;
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; cf. https://github.com/apple2accumulator/merlin32/issues/39
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;
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; Instructions:
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; - Assemble this file with Merlin32. It will pull everything in.
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; - Open out.20212 with the segment viewer and find the start offsets
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; of the segments. Set the ORG field with a hex editor. It's a
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; 4-byte field at +$18. (Easy way in a v2.0 header: find the start
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; of the SEGNAME and back up $1e bytes.)
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; "PosFFE0" -> E0 FF 00
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; "Bank2" -> 56 34 02
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; "Bank8" -> 00 10 08
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; - Convert out.20212 to "20212-reloc-data" with OMF converter. Disable
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; "offset segment by $0100" and "add comments and notes".
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; - The project file requires no edits, except to delete the header comment.
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DSK out.20212 ;output file name, must be ProDOS-compat
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TYP $b3 ;S16
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XPL ;add ~ExpressLoad
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; Segment #1
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ASM 20212-reloc-data-main.S
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KND $1000 ;Code; NoSpec
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; SNA <default>
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; Segment #2
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ASM 20212-reloc-data-relover.S
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KND $8101 ;Data; Dynamic, BankRel
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ALI None
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; BSZ 0
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; ORG $00ffe0 ;load in any bank, at $ffe0
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SNA PosFFE0
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; Segment #3
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ASM 20212-reloc-data-bank2.S
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KND $1000
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DS 256
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; ORG $023456 ;load exactly here
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SNA Bank2
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; Segment #4
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ASM 20212-reloc-data-bank8.S
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KND $8800 ;Code; Dynamic, AbsBank
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; ORG $081000 ;load in bank 8, at any address
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SNA Bank8
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; Segment #5
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ASM 20212-reloc-data-filler.S
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KND $0001 ;Data
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SNA Filler
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