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6502bench/SourceGen/SGTestData/Expected/2008-address-changes_Merlin32.S
Andy McFadden 0d9814d993 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.
2019-10-02 16:50:15 -07:00

108 lines
1.9 KiB
ArmAsm

org $1000
clc
xce
sep #$ff
jsr L1100
jsr L1107
jmp L2000
org $1100
L1100 bit L1100
L1103 lda #$11
ldx #$11
L1107 ldy #$11
per L1103
bra L1103
org $1100
L1100_0 bit L1100_0
lda #$22
L1105 ldx #$22
ldy #$22
per L1105
jmp L1105
org $1100
L1100_1 bit L1100_1
lda #$33
ldx #$33
L1107_0 ldy #$33
per L1107_0
bra L1107_0
org $2000
L2000 bit L2000
beq $2018
bra L2020
org $2020
L2020 bit L2020
beq $2029
brl L2080
offend nop
org $2080
L2080 bit L2080
lda offend
jsr offend
lda $2029
jsr $2029
lda L2080-1
jsr L2080-1
lda L2080
jsr L2080
lda $00
beq L2100
dfb $ad
org $2100
L2100 nop
nop
jmp L3000
org $2800
dfb $00
dfb $28
ds 14,$00
org $2820
ds 18,$00
org $3000
L3000 bit L3000
lda #$44
ldx #$44
ldy #$44
brl fwd
ulabel dfb $00
dfb $01
org $3100
L3100 dfb $02
fwd bit fwd
lda ulabel
lda ulabel+1
lda $300e
lda $300f
lda L3100
beq L3182
dfb $ea
dfb $ea
org $3180
dfb $00
dfb $01
L3182 bit L3182
lda label1
lda label1+1
lda label1+112
bra L3200
label1 dfb $ea
dfb $ea
org $3200
L3200 bit L3200
dfb $00
dfb $01