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6502bench/SourceGen/SGTestData/20170-external-symbols-1.sym65

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Allow explicit widths in project/platform symbols, part 3 Implement multi-byte project/platform symbols by filling out a table of addresses. Each symbol is "painted" into the table, replacing an existing entry if the new entry has higher priority. This allows us to handle overlapping entries, giving boosted priority to platform symbols that are defined in .sym65 files loaded later. The bounds on project/platform symbols are now rigidly defined. If the "nearby" feature is enabled, references to SYM-1 will be picked up, but we won't go hunting for SYM+1 unless the symbol is at least two bytes wide. The cost of adding a symbol to the symbol table is about the same, but we don't have a quick way to remove a symbol. Previously, if two platform symbols had the same value, the symbol with the alphabetically lowest label would win. Now, the symbol defined in the most-recently-loaded file wins. (If you define two symbols with the same value in the same file, it's still resolved alphabetically.) This allows the user to pick the winner by arranging the load order of the platform symbol files. Platform symbols now keep a reference to the file ident of the symbol file that defined them, so we can show the symbols's source in the Info panel. These changes altered the behavior of test 2008-address-changes, which includes some tests on external addresses that are close to labeled internal addresses. The previous behavior essentially treated user labels as being 3 bytes wide and extending outside the file bounds, which was mildly convenient on occasion but felt a little skanky. (We could do with a way to define external symbols relative to internal symbols, for things like the source address of code that gets relocated.) Also, re-enabled some unit tests. Also, added a bit of identifying stuff to CrashLog.txt.
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; Copyright 2019 faddenSoft. All Rights Reserved.
; See the LICENSE.txt file for distribution terms (Apache 2.0).
*SYNOPSIS Symbol set 1 for test 2021-external-symbols
; Platform symbols aren't applied to file data.
CodeWrap @ $0f00 $1000 ;encases program
Allow explicit widths in project/platform symbols, part 3 Implement multi-byte project/platform symbols by filling out a table of addresses. Each symbol is "painted" into the table, replacing an existing entry if the new entry has higher priority. This allows us to handle overlapping entries, giving boosted priority to platform symbols that are defined in .sym65 files loaded later. The bounds on project/platform symbols are now rigidly defined. If the "nearby" feature is enabled, references to SYM-1 will be picked up, but we won't go hunting for SYM+1 unless the symbol is at least two bytes wide. The cost of adding a symbol to the symbol table is about the same, but we don't have a quick way to remove a symbol. Previously, if two platform symbols had the same value, the symbol with the alphabetically lowest label would win. Now, the symbol defined in the most-recently-loaded file wins. (If you define two symbols with the same value in the same file, it's still resolved alphabetically.) This allows the user to pick the winner by arranging the load order of the platform symbol files. Platform symbols now keep a reference to the file ident of the symbol file that defined them, so we can show the symbols's source in the Info panel. These changes altered the behavior of test 2008-address-changes, which includes some tests on external addresses that are close to labeled internal addresses. The previous behavior essentially treated user labels as being 3 bytes wide and extending outside the file bounds, which was mildly convenient on occasion but felt a little skanky. (We could do with a way to define external symbols relative to internal symbols, for things like the source address of code that gets relocated.) Also, re-enabled some unit tests. Also, added a bit of identifying stuff to CrashLog.txt.
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; SameName2 and SameName3 are replaced by later file
SameName1 @ $2000
SameName2 @ $2010
SameName3 @ $2020
; Symbols with the same values but different names are defined
; in later files. Names are chosen to not provide a strict
; alphabetical progression.
;
; These do not have widths, so we can check N+1 to confirm that it does
; not resolve to a symbol.
Allow explicit widths in project/platform symbols, part 3 Implement multi-byte project/platform symbols by filling out a table of addresses. Each symbol is "painted" into the table, replacing an existing entry if the new entry has higher priority. This allows us to handle overlapping entries, giving boosted priority to platform symbols that are defined in .sym65 files loaded later. The bounds on project/platform symbols are now rigidly defined. If the "nearby" feature is enabled, references to SYM-1 will be picked up, but we won't go hunting for SYM+1 unless the symbol is at least two bytes wide. The cost of adding a symbol to the symbol table is about the same, but we don't have a quick way to remove a symbol. Previously, if two platform symbols had the same value, the symbol with the alphabetically lowest label would win. Now, the symbol defined in the most-recently-loaded file wins. (If you define two symbols with the same value in the same file, it's still resolved alphabetically.) This allows the user to pick the winner by arranging the load order of the platform symbol files. Platform symbols now keep a reference to the file ident of the symbol file that defined them, so we can show the symbols's source in the Info panel. These changes altered the behavior of test 2008-address-changes, which includes some tests on external addresses that are close to labeled internal addresses. The previous behavior essentially treated user labels as being 3 bytes wide and extending outside the file bounds, which was mildly convenient on occasion but felt a little skanky. (We could do with a way to define external symbols relative to internal symbols, for things like the source address of code that gets relocated.) Also, re-enabled some unit tests. Also, added a bit of identifying stuff to CrashLog.txt.
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SameValA_C @ $2100
SameValB_B @ $2110
SameValC_A @ $2120
; Test overlap with project symbol. Declare at $2202(4b), and $220a(1b).
ChkProj1 @ $2200 4
ChkProj2 @ $2204 4
; Overlapping regions, defined within a single platform file. We
; should prefer matches by proximity and width. When all else is
; equal, choose alphabetically.
Allow explicit widths in project/platform symbols, part 3 Implement multi-byte project/platform symbols by filling out a table of addresses. Each symbol is "painted" into the table, replacing an existing entry if the new entry has higher priority. This allows us to handle overlapping entries, giving boosted priority to platform symbols that are defined in .sym65 files loaded later. The bounds on project/platform symbols are now rigidly defined. If the "nearby" feature is enabled, references to SYM-1 will be picked up, but we won't go hunting for SYM+1 unless the symbol is at least two bytes wide. The cost of adding a symbol to the symbol table is about the same, but we don't have a quick way to remove a symbol. Previously, if two platform symbols had the same value, the symbol with the alphabetically lowest label would win. Now, the symbol defined in the most-recently-loaded file wins. (If you define two symbols with the same value in the same file, it's still resolved alphabetically.) This allows the user to pick the winner by arranging the load order of the platform symbol files. Platform symbols now keep a reference to the file ident of the symbol file that defined them, so we can show the symbols's source in the Info panel. These changes altered the behavior of test 2008-address-changes, which includes some tests on external addresses that are close to labeled internal addresses. The previous behavior essentially treated user labels as being 3 bytes wide and extending outside the file bounds, which was mildly convenient on occasion but felt a little skanky. (We could do with a way to define external symbols relative to internal symbols, for things like the source address of code that gets relocated.) Also, re-enabled some unit tests. Also, added a bit of identifying stuff to CrashLog.txt.
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Over1 @ $3000 16 ;$3000-300f, inclusive
Over2 @ $3002 8 ;$3002-3009
Over3 @ $3006 7 ;$3006-300c
Over2a @ $3006 1 ;$3006
; Expected result:
; $3000-3001: Over1
; $3002-3005: Over2
; $3006 : Over4
; $3007-300c: Over3
; $300d-300f: Over1
; Overlapping regions defined in multiple files. The later definition
; takes priority. So while SepOver1 would normally end at $3102,
; instead it steps on the first two bytes of SepOver2.
SepOver2 @ $3102 4 ;$3102-3105, inclusive
; Test overlap with local variable. Declare at $41(2b).
OverVar @ $40 4
; Test bank wrap.
BankWrap @ $fff0 $20
Allow explicit widths in project/platform symbols, part 3 Implement multi-byte project/platform symbols by filling out a table of addresses. Each symbol is "painted" into the table, replacing an existing entry if the new entry has higher priority. This allows us to handle overlapping entries, giving boosted priority to platform symbols that are defined in .sym65 files loaded later. The bounds on project/platform symbols are now rigidly defined. If the "nearby" feature is enabled, references to SYM-1 will be picked up, but we won't go hunting for SYM+1 unless the symbol is at least two bytes wide. The cost of adding a symbol to the symbol table is about the same, but we don't have a quick way to remove a symbol. Previously, if two platform symbols had the same value, the symbol with the alphabetically lowest label would win. Now, the symbol defined in the most-recently-loaded file wins. (If you define two symbols with the same value in the same file, it's still resolved alphabetically.) This allows the user to pick the winner by arranging the load order of the platform symbol files. Platform symbols now keep a reference to the file ident of the symbol file that defined them, so we can show the symbols's source in the Info panel. These changes altered the behavior of test 2008-address-changes, which includes some tests on external addresses that are close to labeled internal addresses. The previous behavior essentially treated user labels as being 3 bytes wide and extending outside the file bounds, which was mildly convenient on occasion but felt a little skanky. (We could do with a way to define external symbols relative to internal symbols, for things like the source address of code that gets relocated.) Also, re-enabled some unit tests. Also, added a bit of identifying stuff to CrashLog.txt.
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; Width specifiers on constants should be ignored.
FatConst = $4000 8
; Overlapping multi-byte items with exact and inexact matches.
OverA_0 @ $6000 8 ;should win, alphabetically
OverB_0 @ $6000 8
OverB_1 @ $6100 8 ;(file order reversed)
OverA_1 @ $6100 8 ;should win, alphabetically
OverA_2 @ $6200 8
OverB_2 @ $6200 ;should win because narrower
OverA_3 @ $6300 8 ;(ref OverA_3+4)
OverB_3 @ $6300 7 ;should win because narrower
OverA_4 @ $6401 8 ;(ref OverA_4+2)
OverB_4 @ $6402 8 ;should win because closer
OverC_4 @ $6403 8
; I/O direction test
ReadOnly < $5000 2 ;R
WriteOnly > $5001 2 ;W
;
; MULTI_MASK tests.
;
; The behavior of overlapping masks is not currently defined, so we don't test
; that scenario.
;
; overlaps with multi range in second symbol file
AlsoMoreMultiZero @ $c110 ;winner
*MULTI_MASK $ff00 $c000 $000f ;$c000-c00f, repeats $c010-c01f, etc. to $c0ff
MultiZero @ $c000
AlsoMultiZero @ $c010 ;wins (alphabetically)
MultiOne @ $c021
; Test: C000, C010, C020, C0F0
; Test: C001, C011, C021
; Test: C002, C012, C022
MultiRead < $c004 3 ;$c004/5/6, read-only
MultiWrite > $c005 3 ;$c005/6/7, write-only
; Test: read C003 C004 C005 C006 C007
; Test: write C004 C005 C006 C007 C008
; try a non-matching constant; should be accepted without complaint
MultiConst = $4567
;
; Invalid values. These cause a warning at load time, and the symbol will
; be ignored.
;
; Not in range.
MultiInvalid @ $1234
; Not all covered addresses are inside the masked range.
TooLong @ $c0f8 $a
;
; Badly-formed MULTI_MASK entries. These cause a warning at load time, and
; the directive will be ignored.
;
*MULTI_MASK $fffff $ffff $ffff ;range
*MULTI_MASK $ffff $fffff $ffff ;range
*MULTI_MASK $ffff $ffff $fffff ;range
*MULTI_MASK