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6502bench/SourceGen/SGTestData/Source/20190-non-unique-labels.S

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; Copyright 2019 faddenSoft. All Rights Reserved.
; See the LICENSE.txt file for distribution terms (Apache 2.0).
;
; Assembler: Merlin 32
; NOTE: configure for plain 6502
org $1000
; Test conflict with auto-label.
start lda #$00 ;do not label
:L1000 lda #$01 ;EDIT: set label to :L1000 (dup of auto)
ldx start
ldy :L1000
; Test local/global having same name.
ldx #$02
loop1 dex ;EDIT
bne loop1
ldx #$03
:loop1 dex ;EDIT
bne :loop1
; Test nested loops, and ref to a non-unique local on the other side
; of a global.
global1 nop ;EDIT
ldx #$04
:loop1 ldy #$05 ;EDIT: local, name "loop"
:loop2 dey ;EDIT: local, name "loop"
bne :loop2
dex
bne :loop1
jmp btarg
global2 nop ;EDIT
btarg nop ;EDIT: local, name "loop"
; Test hand-over-hand locals branching forward.
global3 nop ;EDIT
ldx #$06
ldy #$07
dex
beq :fwd1
dey
beq :fwd2
:fwd1 nop ;EDIT
:fwd2 nop ;EDIT
; Test loop with an unreferenced global in the middle.
global4 nop ;EDIT
ldx #$08
gloop dex ;EDIT: local, name "loop"
global5 nop
bne gloop
nop
; Test symbolic references.
; NOTE: start them as spin1/spin2/spin3, then rename spin3 to spin1
global6 nop
:spin1 jsr :spin2 ;EDIT: local, name "spin1", operand ref to ":spin2"
:spin2 jsr :spin1 ;EDIT: local, name "spin2", operand ref to ":spin1"
nop
:spin3 lda :spin3 ;EDIT: local, name "spin1", operand ref to ":spin1" (will be adjusted)
beq :spin3 ;EDIT: operand ref to ":spin1" (NOT adjusted)
lda #<:spin1
ldx #<:spin2
lda #>:spin1
ldx #>:spin2
bne :skip
dw :spin1 ;EDIT: local, name "spin1"
dw :spin2 ;EDIT: local, name "spin1" (will be offset)
dw :spin3 ;EDIT: local, name "spin1"
dfb <:spin1 ;EDIT: local, name "spin1" (may need to do as
dfb <:spin2 ;EDIT: local, name "spin1" unique names and then
dfb >:spin1 ;EDIT: local, name "spin1" rename afterward)
dfb >:spin2 ;EDIT: local, name "spin1"
:skip nop ;EDIT: local
; Semi-related: test labels that are nothing but underscores.
global_ nop
_global ldx #$40
__ dex
bne __
beq ___
___ ldx #$41
:__ dex
bne :__
nop
; Semi-related: test annotations (mostly to confirm that the suffix chars
; aren't appearing in the assembly output)
anno lda #$42 ;EDIT: add '?'
anno1 lda anno ;NOTE: do not label, let table gen do it
clc
bcc :skip
dw anno1 ;EDIT: use table generator to get annotation
:skip nop
; Semi-related: test opcode name labels (which are illegal for assemblers
; other than Merlin 32). We're configured for plain 6502, so it should
; remap some but not others.
JMP lda JMP ;EDIT set label (becomes JMP1 on non-Merlin)
JMP0 lda JMP0 ;EDIT set label
JMP1 lda JMP1 ;EDIT set label (becomes JMP11 on non-Merlin)
:JMP lda :JMP ;EDIT set label
:JMP0 lda :JMP0 ;EDIT set label
:JMP1 lda :JMP1 ;EDIT set label
:JMP_ lda :JMP_ ;EDIT set label :JMP (should become :JMP2)
jmp lda jmp ;EDIT set label
Jmp lda Jmp ;EDIT set label
BRA lda BRA ;EDIT set label (should NOT be remapped)
brl lda brl ;EDIT set label (should NOT be remapped)
LDAL ldal LDAL ;EDIT set label (should NOT be remapped)
; Test local-variable interaction. The goal here is to try to trick the
; code generator into creating duplicate labels.
global7 nop
]plain equ $11 ;EDIT create local var table
]_under1 equ $12
]__dub1 equ $13
lda ]plain
lda ]_under1
lda ]__dub1
:plain0 lda :plain0 ;EDIT: set label :plain
plain1 lda plain1 ;EDIT: set label :plain (should uniquify to plain)
global8 dex ; (which will then clash with the local var)
bne plain1
X_under1 lda X_under1 ;EDIT: set label (global) (trying to clash on 64tass)
:X__dub1 lda :X__dub1 ;EDIT: set label
]_under1 equ $22 ;EDIT: create local var table (don't clear)
lda ]plain
lda ]_under1
rts