mirror of
https://github.com/fadden/6502bench.git
synced 2025-03-02 23:29:02 +00:00
59b7ec0dea
The instruction shifts 0 into the high bit, so the result is never negative. Added a test case to 1003-flags-and-branches.
271 lines
4.0 KiB
ArmAsm
271 lines
4.0 KiB
ArmAsm
org $1000
|
|
clc
|
|
xce
|
|
sep #$ff
|
|
clv
|
|
cld
|
|
cli
|
|
clc
|
|
lda #$80
|
|
lda #$01
|
|
sed
|
|
sei
|
|
sec
|
|
lda #$ff
|
|
adc #$00
|
|
sep #$ff
|
|
rep #$80
|
|
rep #$40
|
|
rep #$20
|
|
mx %01
|
|
rep #$10
|
|
mx %00
|
|
rep #$08
|
|
rep #$04
|
|
rep #$02
|
|
rep #$01
|
|
sep #$00
|
|
sep #$ff
|
|
mx %11
|
|
rep #$00
|
|
rep #$ff
|
|
mx %00
|
|
lda #$feed
|
|
sec
|
|
xce
|
|
mx %11
|
|
lda #$ff
|
|
rep #$30
|
|
mx %11
|
|
lda #$ff
|
|
clc
|
|
xce
|
|
lda #$ff
|
|
rep #$20
|
|
mx %01
|
|
sep #$10
|
|
lda #$0000
|
|
ldx #$01
|
|
ldy #$02
|
|
sep #$20
|
|
mx %11
|
|
rep #$10
|
|
mx %10
|
|
lda #$01
|
|
ldx #$0000
|
|
ldy #$0000
|
|
sep #$30
|
|
mx %11
|
|
lda #$00
|
|
pha
|
|
plp
|
|
rep #$80
|
|
bpl L105F
|
|
|
|
dfb $00
|
|
dfb $00
|
|
|
|
L105F sep #$80
|
|
bpl :L1065
|
|
bmi :L1067
|
|
|
|
:L1065 dfb $00
|
|
dfb $00
|
|
|
|
:L1067 rep #$40
|
|
bvc :L106D
|
|
|
|
dfb $00
|
|
dfb $00
|
|
|
|
:L106D sep #$40
|
|
bvs :L1073
|
|
|
|
dfb $00
|
|
dfb $00
|
|
|
|
:L1073 rep #$01
|
|
bcc :L1079
|
|
|
|
dfb $00
|
|
dfb $00
|
|
|
|
:L1079 sep #$01
|
|
bcs :L107F
|
|
|
|
dfb $00
|
|
dfb $00
|
|
|
|
:L107F rep #$02
|
|
bne :L1085
|
|
|
|
dfb $00
|
|
dfb $00
|
|
|
|
:L1085 sep #$02
|
|
beq :L108B
|
|
|
|
dfb $00
|
|
dfb $00
|
|
|
|
:L108B sep #$ff
|
|
lda #$01
|
|
bne :L1093
|
|
|
|
dfb $00
|
|
dfb $db
|
|
|
|
:L1093 lda #$00
|
|
beq :L1099
|
|
|
|
dfb $00
|
|
dfb $db
|
|
|
|
:L1099 bpl :L109D
|
|
|
|
dfb $00
|
|
dfb $db
|
|
|
|
:L109D lda #$80
|
|
bmi :L10A3
|
|
|
|
dfb $00
|
|
dfb $db
|
|
|
|
:L10A3 lda #$ff
|
|
and #$00
|
|
beq :L10AB
|
|
|
|
dfb $00
|
|
dfb $db
|
|
|
|
:L10AB lda #$00
|
|
and #$ff
|
|
beq :L10B3
|
|
|
|
dfb $00
|
|
dfb $db
|
|
|
|
:L10B3 lda #$ff
|
|
and #$7f
|
|
bne :L10BB
|
|
brk
|
|
|
|
dfb $db
|
|
|
|
:L10BB bpl :L10BF
|
|
|
|
dfb $00
|
|
dfb $db
|
|
|
|
:L10BF lda #$ff
|
|
and #$80
|
|
bmi :L10C7
|
|
|
|
dfb $00
|
|
dfb $db
|
|
|
|
:L10C7 lda #$00
|
|
ora #$00
|
|
beq :L10CF
|
|
|
|
dfb $00
|
|
dfb $db
|
|
|
|
:L10CF ora #$01
|
|
bne :L10D5
|
|
|
|
dfb $00
|
|
dfb $db
|
|
|
|
:L10D5 lda #$00
|
|
ora #$7f
|
|
bpl :L10DD
|
|
|
|
dfb $00
|
|
dfb $db
|
|
|
|
:L10DD ora #$80
|
|
bmi :L10E3
|
|
|
|
dfb $00
|
|
dfb $db
|
|
|
|
:L10E3 lda :L10E3
|
|
sec
|
|
ror A
|
|
bmi :L10EC
|
|
|
|
dfb $00
|
|
dfb $dc
|
|
|
|
:L10EC clc
|
|
ror A
|
|
bpl :L10F2
|
|
|
|
dfb $00
|
|
dfb $dc
|
|
|
|
:L10F2 lda #$00
|
|
sec
|
|
rol A
|
|
bne :L10FA
|
|
|
|
dfb $00
|
|
dfb $dc
|
|
|
|
:L10FA lda #$ff
|
|
lsr A
|
|
bpl :L1101
|
|
|
|
dfb $00
|
|
dfb $dd
|
|
|
|
:L1101 clc
|
|
php
|
|
sec
|
|
plp
|
|
bcc :L1109
|
|
|
|
dfb $00
|
|
dfb $00
|
|
|
|
:L1109 sec
|
|
bcs :L110D
|
|
|
|
:L110C clc
|
|
:L110D lda $33
|
|
beq :L110C
|
|
bcs :L1115
|
|
lda $44
|
|
:L1115 nop
|
|
rep #$20
|
|
mx %01
|
|
sep #$10
|
|
jsr :L1131
|
|
rep #$30
|
|
mx %00
|
|
jsr :L1137
|
|
sep #$30
|
|
mx %11
|
|
jsr :L1137
|
|
rep #$20
|
|
mx %01
|
|
sep #$10
|
|
jsr :L1131
|
|
sep #$30
|
|
mx %11
|
|
rts
|
|
|
|
mx %01
|
|
:L1131 lda #$1234
|
|
ldx #$ff
|
|
rts
|
|
|
|
mx %11
|
|
:L1137 lda #$ff
|
|
ldx #$ee
|
|
ldy #$dd
|
|
rts
|
|
|