mirror of
https://github.com/mrehkopf/sd2snes.git
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81 lines
1.2 KiB
Plaintext
81 lines
1.2 KiB
Plaintext
.link page $c0
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read_pad:
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php
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phb
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sep #$20 : .as
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lda #$80
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pha
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plb
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rep #$30 : .xl : .al
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stz pad_b ; (including y)
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stz pad_select ; (including start)
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stz pad_up ; (including down)
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stz pad_left ; (including right)
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stz pad_a ; (including x)
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stz pad_l ; (including r)
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read_pad1
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ldx pad1mem ;byetUDLRaxlriiii
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lda $4218
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and #$000f
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bne +
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lda $4218
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+ sta pad1mem
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lda $421a
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and #$000f
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bne +
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lda $421a
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+ ora pad1mem
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sta pad1mem
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and #$0f00
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bne read_pad1_count
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stz pad1delay
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read_pad1_cont1
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txa
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eor pad1mem
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and pad1mem
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sta pad1trig
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lda #$0010
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cmp pad1delay
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bne read_pad1_cont2
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stz pad1mem
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lda #$000d
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sta pad1delay
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read_pad1_cont2
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lda pad1trig
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sep #$20 : .as
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rol
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rol pad_a
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rol
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rol pad_x
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rol
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rol pad_l
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rol
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rol pad_r
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xba
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rol
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rol pad_b
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rol
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rol pad_y
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rol
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rol pad_select
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rol
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rol pad_start
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rol
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rol pad_up
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rol
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rol pad_down
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rol
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rol pad_left
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rol
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rol pad_right
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plb
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plp
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rts
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read_pad1_count
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lda pad1delay
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inc
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sta pad1delay
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bra read_pad1_cont1
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