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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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11
Task/Generic-swap/6502-Assembly/generic-swap-1.6502 Normal file
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;swap X with Y
pha ;push accumulator
txa
pha ;push x
tya
pha ;push y
pla
tax ;pop y into x
pla
tay ;pop x into y
pla ;pop accumulator

5
Task/Generic-swap/6502-Assembly/generic-swap-2.6502 Normal file
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sta temp ;a label representing a zero page memory address
txa
pha ;push x
ldx temp
pla ;pop x into accumulator

12
Task/Generic-swap/6502-Assembly/generic-swap-3.6502 Normal file
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temp equ $00
temp2 equ $01 ;these values don't matter.
lda temp
pha ;push temp
lda temp2
pha ;push temp2
pla
sta temp ;pop temp2 into temp
pla
sta temp2 ;pop temp into temp2

11
Task/Generic-swap/6502-Assembly/generic-swap-4.6502 Normal file
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lda #$33
ldx #$44
ldy #$55
pha
phx
phy
pla ;a=#$55
ply ;y=#$44
plx ;x=#$33