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28eafef27c
Extension scripts (a/k/a "plugins") can now apply any data format supported by FormatDescriptor to inline data. In particular, it can now handle variable-length inline strings. The code analyzer verifies the string structure (e.g. null-terminated strings have exactly one null byte, at the very end). Added PluginException to carry an exception back to the plugin code, for occasions when they're doing something so wrong that we just want to smack them. Added test 2022-extension-scripts to exercise the feature.
62 lines
1.6 KiB
ArmAsm
62 lines
1.6 KiB
ArmAsm
; Copyright 2019 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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; Assembler: Merlin 32
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; EDIT: the project must include the platform symbol file and extension script
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PrintInlineL1String equ $011000
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PrintInlineL2String equ $012000
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PrintInlineDciString equ $013000 ;EDIT: add to project symbols
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org $1000
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clc
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xce
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sep #$30
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mx %11
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; check basics
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jsr Print8String
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asc '01234567'
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jsr PrintRev8String
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asc '76543210'
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jsr PrintInlineNullString
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asc 'null-term string',00
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jsl PrintInlineL1String
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str 'string with length/1'
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jsl PrintInlineL2String
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strl 'string with length/2'
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jsl PrintInlineDciString
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dci 'DCI string'
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; check errors
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jsr broken
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jsr off_end
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jsr too_long
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rts
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PrintInline8String rts ;EDIT: set label
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PrintInlineRev8String rts ;EDIT: set label
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PrintInlineNullString rts ;EDIT: set label
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; check address split across string
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broken jsr PrintInlineNullString
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asc 'broken ',01
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org $1100 ;EDIT: split address
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asc 'string',00
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rts
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too_long jsl PrintInlineL2String
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dw END-*+1 ;should be 1 byte over; want it to be rejected by
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rts ; function in .cs (otherwise code overlap race)
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; MUST be last
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off_end jsr PrintInlineNullString
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nonterm asc 'end'
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END equ *
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