mirror of
https://github.com/fadden/6502bench.git
synced 2024-12-11 13:50:13 +00:00
bc7a225080
Added a compiled C implementation of strlen(). The most interesting part about this is that it references a 16-bit value via direct-page address $ff, which means you'd want a local variable with address=$ff and width=2. The current UI prevents this.
300 lines
6.9 KiB
ArmAsm
300 lines
6.9 KiB
ArmAsm
;Edited to have duplicate labels (PROJ_ZERO, DPCODE).
|
|
!cpu 65816
|
|
CONST_ZERO = $f0 ;project const
|
|
|
|
PROJ_ZERO = $00 ;project addr
|
|
PROJ_ONE = $01 ;project addr
|
|
|
|
* = $0000
|
|
!pseudopc $1000 {
|
|
!as
|
|
!rs
|
|
ldy PROJ_ZERO
|
|
lda (PROJ_ONE),y
|
|
sta $03 ;could be PROJ_ONE+2, but "nearby" is off
|
|
ldx $04
|
|
lda CONST_ZERO,S
|
|
sta $f1,S
|
|
!zone Z00000c
|
|
.VAR_ZERO = $00
|
|
.VAR_TWO = $02
|
|
.VAR_THREE = $03
|
|
.CONST_ZERO_VAR = $f0
|
|
ldy .VAR_ZERO
|
|
lda (.VAR_ZERO+1),y
|
|
sta .VAR_THREE
|
|
ldx $04
|
|
lda .CONST_ZERO_VAR,S
|
|
sta $f1,S
|
|
eor 0
|
|
ora 240,S
|
|
!zone Z00001c
|
|
.VAR_ZERO = $00
|
|
.VAR_TWO = $02
|
|
.VAR_THREE = $03
|
|
.PROJ_ZERO_DUP1 = $10 ;clash with project symbol
|
|
.DPCODE_DUP1 = $80 ;clash with user label
|
|
.CONST_ZERO_VAR = $f0
|
|
lda .VAR_ZERO
|
|
lda .VAR_ZERO+1
|
|
lda .VAR_TWO
|
|
!zone Z000022
|
|
.VAR_ZERO = $00
|
|
.VAR_TWO = $02
|
|
.VAR_THREE = $03
|
|
.PROJ_ZERO_DUP1 = $10 ;clash with project symbol
|
|
.DPCODE_DUP1 = $80 ;clash with user label
|
|
.CONST_ZERO_VAR = $f0
|
|
lda .VAR_THREE
|
|
lda $04
|
|
lda .PROJ_ZERO_DUP1
|
|
lda $11
|
|
lda+1 DPCODE
|
|
!zone Z00002c
|
|
ldx PROJ_ZERO
|
|
ldx PROJ_ONE
|
|
ldx $02
|
|
bit $ffa9
|
|
ldy PROJ_ZERO
|
|
ldy PROJ_ONE
|
|
ldy $02
|
|
!byte $2c
|
|
!zone Z00003c
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
L103C lda #$fe
|
|
beq L103C
|
|
ldy .NH0
|
|
ldy .NH1
|
|
ldy $02
|
|
nop
|
|
!zone Z000047
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
lda .PTR0
|
|
ldx .PTR0+1
|
|
ldy $12
|
|
lda (.CONST0,S),y
|
|
sta (.CONST0+3,S),y
|
|
;Test name redefinition. This is mostly of interest for assemblers without
|
|
;redefinable variables, but also of interest to the cross-reference window.
|
|
!zone Z000051
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR = $20 ;#1
|
|
ldx .PTR
|
|
!zone Z000053
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR = $22 ;#2
|
|
ldx .PTR
|
|
!zone Z000055
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR = $24 ;#3
|
|
ldx .PTR
|
|
@PTR_1 nop
|
|
!zone Z000058
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR_A = $20
|
|
.PTR = $24 ;#3
|
|
ldy .PTR_A
|
|
!zone Z00005a
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR_B = $1f
|
|
.PTR = $24 ;#3
|
|
ldy .PTR_B+1
|
|
!zone Z00005c
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR_C = $1d
|
|
.PTR = $24 ;#3
|
|
ldy .PTR_C+3
|
|
!zone Z00005e
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR_C = $1d
|
|
.PTR_D = $21
|
|
.PTR = $24 ;#3
|
|
ldy .PTR_C+3
|
|
!zone Z000060
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR_C = $1d
|
|
.PTR_D = $21
|
|
.PTR = $24 ;#3
|
|
.VAL0 = $30
|
|
.VAL1 = $31
|
|
.VAL2 = $32
|
|
.VAL3 = $33
|
|
.VAL4 = $34
|
|
.VAL5 = $35
|
|
and .VAL0
|
|
and .VAL1
|
|
and .VAL2
|
|
and .VAL3
|
|
and .VAL4
|
|
and .VAL5
|
|
!zone Z00006c
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR_C = $1d
|
|
.PTR_D = $21
|
|
.PTR = $24 ;#3
|
|
.VAL0 = $30
|
|
.VAL14 = $31
|
|
.VAL5 = $35
|
|
and .VAL0
|
|
and .VAL14
|
|
and .VAL14+1
|
|
and .VAL14+2
|
|
and .VAL14+3
|
|
and .VAL5
|
|
!zone Z000078
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR_C = $1d
|
|
.PTR_D = $21
|
|
.PTR = $24 ;#3
|
|
.VAL0 = $30
|
|
.VAL14 = $31
|
|
.VAL5 = $35
|
|
.DPNOP = $80 ;same as org
|
|
lda+1 DPCODE
|
|
jsr DPCODE
|
|
rts
|
|
|
|
} ;!pseudopc
|
|
!pseudopc $0080 {
|
|
DPCODE nop
|
|
lda+1 DPCODE
|
|
lda+2 DPCODE
|
|
lda+3 DPCODE
|
|
@SPLIT1 lda #','
|
|
!zone Z00008a
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR_C = $1d
|
|
.PTR_D = $21
|
|
.PTR = $24 ;#3
|
|
.VAL0 = $30
|
|
.VAL14 = $31
|
|
.VAL5 = $35
|
|
.SPLITTER = $80
|
|
ldx $1234
|
|
beq @SPLIT1
|
|
@SPLIT2 lda ','
|
|
!zone Z000091
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR_C = $1d
|
|
.PTR_D = $21
|
|
.PTR = $24 ;#3
|
|
.VAL0 = $30
|
|
.VAL14 = $31
|
|
.VAL5 = $35
|
|
.SPLITTER = $80
|
|
ldx $5678
|
|
beq @SPLIT2
|
|
nop
|
|
clc
|
|
xce
|
|
rep #$30
|
|
!al
|
|
!rl
|
|
pea STRING >> 16
|
|
pea STRING
|
|
jsl STRLEN
|
|
sec
|
|
xce
|
|
!as
|
|
!rs
|
|
jmp L00E6
|
|
|
|
STRING !text "testing"
|
|
!byte $00
|
|
|
|
!zone Z0000b2
|
|
.NH0 = $00 ;not hidden
|
|
.NH1 = $01 ;not hidden
|
|
.PTR0 = $10
|
|
.CONST0 = $10
|
|
.PTR_C = $1d
|
|
.PTR_D = $21
|
|
.VAL0 = $30
|
|
.VAL14 = $31
|
|
.VAL5 = $35
|
|
.SPLITTER = $80
|
|
.LEN = $f2
|
|
.PTR = $f4
|
|
.ARG = $fd
|
|
!al
|
|
!rl
|
|
STRLEN phd
|
|
tsc
|
|
sec
|
|
sbc #$00f7
|
|
tcd
|
|
adc #$00f0
|
|
tcs
|
|
stz .LEN
|
|
@L00C1 ldx .ARG+2
|
|
lda .ARG
|
|
inc .ARG
|
|
bne @L00CB
|
|
inc .ARG+2
|
|
@L00CB sta .PTR
|
|
stx .PTR+2
|
|
lda [.PTR]
|
|
and #$00ff
|
|
beq @L00DA
|
|
inc .LEN
|
|
bra @L00C1
|
|
|
|
@L00DA lda .LEN
|
|
tay
|
|
tdc
|
|
clc
|
|
adc #$00f7
|
|
tcs
|
|
tya
|
|
pld
|
|
rtl
|
|
|
|
!as
|
|
!rs
|
|
L00E6 bit .ARG+2
|
|
bit+2 $00ff
|
|
bit $0100
|
|
rts
|
|
|
|
} ;!pseudopc
|