
    ;   TEST ADDRESSING MODES

    processor   6502

    org    0

    adc    #1
    adc    1
    adc    1,x
    adc    1,y        ;absolute
    adc    1000
    adc    1000,x
    adc    1000,y
    adc    (1,x)
    adc    (1),y

    and    #1
    and    1
    and    1,x
    and    1,y        ;absolute
    and    1000
    and    1000,x
    and    1000,y
    and    (1,x)
    and    (1),y

    asl
    asl    1
    asl    1,x
    asl    1000
    asl    1000,x

    bcc    .
    bcs    .
    beq    .
    bit    1
    bit    1000
    bmi    .
    bne    .
    bpl    .
    brk
    bvc    .
    bvs    .
    clc
    cld
    cli
    clv

    cmp    #1
    cmp    1
    cmp    1,x
    cmp    1,y        ;absolute
    cmp    1000
    cmp    1000,x
    cmp    1000,y
    cmp    (1,x)
    cmp    (1),y

    cpx    #1
    cpx    1
    cpx    1000

    cpy    #1
    cpy    1
    cpy    1000

    dec    1
    dec    1,x
    dec    1000
    dec    1000,x

    dex
    dey

    eor    #1
    eor    1
    eor    1,x
    eor    1,y        ;absolute
    eor    1000
    eor    1000,x
    eor    1000,y
    eor    (1,x)
    eor    (1),y

    inc    1
    inc    1,x
    inc    1000
    inc    1000,x

    inx
    iny

    jmp    1        ;absolute
    jmp    1000
    jmp    (1)         ;absolute
    jmp    (1000)

    jsr    1        ;absolute
    jsr    1000

    lda    #1
    lda    1
    lda    1,x
    lda    1,y        ;absolute
    lda    1000
    lda    1000,x
    lda    1000,y
    lda    (1,x)
    lda    (1),y

    ldx    #1
    ldx    1
    ldx    1,y
    ldx    1000
    ldx    1000,y

    ldy    #1
    ldy    1
    ldy    1,x
    ldy    1000
    ldy    1000,x

    lsr
    lsr    1
    lsr    1,x
    lsr    1000
    lsr    1000,x

    nop

    ora    #1
    ora    1
    ora    1,x
    ora    1,y        ;absolute
    ora    1000
    ora    1000,x
    ora    1000,y
    ora    (1,x)
    ora    (1),y

    pha
    php
    pla
    plp

    rol
    rol    1
    rol    1,x
    rol    1000
    rol    1000,x

    ror
    ror    1
    ror    1,x
    ror    1000
    ror    1000,x

    rti
    rts

    sbc    #1
    sbc    1
    sbc    1,x
    sbc    1,y        ;absolute
    sbc    1000
    sbc    1000,x
    sbc    1000,y
    sbc    (1,x)
    sbc    (1),y

    sec
    sed
    sei

    sta    1
    sta    1,x
    sta    1,y        ;absolute
    sta    1000
    sta    1000,x
    sta    1000,y
    sta    (1,x)
    sta    (1),y

    stx    1
    stx    1,y
    stx    1000

    sty    1
    sty    1,x
    sty    1000

    tax
    tay
    tsx
    txa
    txs
    tya

    ; illegal opcode additions

    lax     (1),y
    nop     0
    



