mirror of
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54 lines
1.4 KiB
Plaintext
54 lines
1.4 KiB
Plaintext
;-------------------------------
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; #T00SCOTTFORESMAN
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; nibble count during early boot
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;
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; tested on
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; - Addition and Subtraction 4 (Scott, Foresman and Company)
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; - Decimals 3 (Scott, Foresman and Company)
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; - Dinosaurs and Squids (Scott, Foresman and Company)
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; - Division 2 (Scott, Foresman and Company)
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; - Division 3 (Scott, Foresman and Company)
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; - Fractions 3 (Scott, Foresman and Company)
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; - Fractions 5 (Scott, Foresman and Company)
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; - Multiplication 3 (Scott, Foresman and Company)
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; - Percent 2 (Scott, Foresman and Company)
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;-------------------------------
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; gTrack = 0
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lda #$00
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ldx #$33
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ldy #$08
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jsr compare ; if T00,S00,$33 ==
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!byte $A9,$79
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!byte $85,$3C
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!byte $A9,$08
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!byte $85,$3D
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bcs +
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lda #$06
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ldx #$02
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tay
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jsr compare ; and T00,S06,$02 ==
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!byte $48
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!byte $20,WILDCARD,WILDCARD
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!byte $68
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!byte $D0
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bcs +
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lda #$0E
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ldx #$FF
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jsr compare1 ; and T00,S0E,$FF ==
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!byte $20
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bcs +
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jsr PrintByID
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!byte s_sfc
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jsr modify1 ; then set T00,S0E,$FF ==
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!byte $EA
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lda #$06
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ldx #$00
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jsr modify2 ; and set T00,S06,$00 ==
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!byte $A9,$00
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+
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