mirror of
https://github.com/fadden/6502bench.git
synced 2024-07-14 05:28:55 +00:00
4981c3cdbb
ACME has a "real" PC and a "pseudo" PC. The "real" PC determines the initial position in a 64KB buffer used to hold assembler output. If the amount of code generated runs off the end, the assembler fails with "produced too much code". The source code generator in SourceGen was outputting a "real" PC for the first address range and "psuedo" PCs for any address ranges that followed. This produced nice results for code with a single range, but caused problems for multi-range sources if the initial range was high in memory and a later range was lower in memory. While the assembler isn't actually generating more than 64KB of code, ACME's buffer management was detecting an overflow. Now, if a source file has multiple address ranges, we set the "real" PC to $0000 and use a "pseudo" PC for all ranges. Output for projects with a single address range is unmodified.
126 lines
2.4 KiB
ArmAsm
126 lines
2.4 KiB
ArmAsm
!cpu 65816
|
|
* = $0000
|
|
!pseudopc $1000 {
|
|
!as
|
|
!rs
|
|
clc
|
|
xce
|
|
sep #$ff
|
|
jsr L1100
|
|
jsr L1107
|
|
jmp L2000
|
|
|
|
} ;!pseudopc
|
|
!pseudopc $1100 {
|
|
L1100 bit L1100
|
|
L1103 lda #$11
|
|
ldx #$11
|
|
L1107 ldy #$11
|
|
per L1103
|
|
bra L1103
|
|
|
|
} ;!pseudopc
|
|
!pseudopc $1100 {
|
|
@L1100_0 bit @L1100_0
|
|
lda #$22
|
|
@L1105 ldx #$22
|
|
ldy #$22
|
|
per @L1105
|
|
jmp @L1105
|
|
|
|
} ;!pseudopc
|
|
!pseudopc $1100 {
|
|
@L1100_1 bit @L1100_1
|
|
lda #$33
|
|
ldx #$33
|
|
@L1107_0 ldy #$33
|
|
per @L1107_0
|
|
bra @L1107_0
|
|
|
|
} ;!pseudopc
|
|
!pseudopc $2000 {
|
|
L2000 bit L2000
|
|
beq $2018
|
|
bra @L2020
|
|
|
|
} ;!pseudopc
|
|
!pseudopc $2020 {
|
|
@L2020 bit @L2020
|
|
beq $2029
|
|
brl @L2080
|
|
|
|
@offend nop
|
|
} ;!pseudopc
|
|
!pseudopc $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
|
|
!byte $ad
|
|
|
|
} ;!pseudopc
|
|
!pseudopc $2100 {
|
|
@L2100 nop
|
|
nop
|
|
jmp @L3000
|
|
|
|
} ;!pseudopc
|
|
!pseudopc $2800 {
|
|
!byte $00
|
|
!byte $28
|
|
!fill 14,$00
|
|
} ;!pseudopc
|
|
!pseudopc $2820 {
|
|
!fill 18,$00
|
|
|
|
} ;!pseudopc
|
|
!pseudopc $3000 {
|
|
@L3000 bit @L3000
|
|
lda #$44
|
|
ldx #$44
|
|
ldy #$44
|
|
brl @fwd
|
|
|
|
@ulabel !byte $00
|
|
!byte $01
|
|
} ;!pseudopc
|
|
!pseudopc $3100 {
|
|
!byte $02
|
|
|
|
@fwd bit @fwd
|
|
lda @ulabel
|
|
lda @ulabel+1
|
|
lda $300e
|
|
lda $300f
|
|
lda @fwd-1
|
|
beq @L3182
|
|
!byte $ea
|
|
!byte $ea
|
|
} ;!pseudopc
|
|
!pseudopc $3180 {
|
|
!byte $00
|
|
!byte $01
|
|
|
|
@L3182 bit @L3182
|
|
lda @label1
|
|
lda @label1+1
|
|
lda @label1+112
|
|
bra @L3200
|
|
|
|
@label1 !byte $ea
|
|
!byte $ea
|
|
|
|
} ;!pseudopc
|
|
!pseudopc $3200 {
|
|
@L3200 bit @L3200
|
|
!byte $00
|
|
!byte $01
|
|
} ;!pseudopc
|