2008-10-13 01:43:59 +00:00
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.segment "CODE"
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; ----------------------------------------------------------------------------
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; COMPUTE ADDRESS OF FIRST VALUE IN ARRAY
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; ARYPNT = (LOWTR) + #DIMS*2 + 5
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; ----------------------------------------------------------------------------
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GETARY:
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lda EOLPNTR
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asl a
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adc #$05
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adc LOWTR
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ldy LOWTR+1
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bcc L2FAF
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iny
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L2FAF:
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sta HIGHDS
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sty HIGHDS+1
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rts
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; ----------------------------------------------------------------------------
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NEG32768:
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.byte $90,$80,$00,$00
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2008-10-18 06:23:05 +00:00
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.ifdef CONFIG_2C
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.byte $00; bugfix: short number
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2008-10-14 09:23:44 +00:00
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.endif
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2008-10-13 01:43:59 +00:00
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; ----------------------------------------------------------------------------
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; EVALUATE NUMERIC FORMULA AT TXTPTR
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; CONVERTING RESULT TO INTEGER 0 <= X <= 32767
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; IN FAC+3,4
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; ----------------------------------------------------------------------------
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MAKINT:
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jsr CHRGET
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2008-10-13 20:26:42 +00:00
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.ifdef CONFIG_2
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2008-10-13 01:43:59 +00:00
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jsr FRMEVL
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.else
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jsr FRMNUM
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.endif
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; ----------------------------------------------------------------------------
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; CONVERT FAC TO INTEGER
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; MUST BE POSITIVE AND LESS THAN 32768
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; ----------------------------------------------------------------------------
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MKINT:
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2008-10-13 20:26:42 +00:00
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.ifdef CONFIG_2
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2008-10-13 01:43:59 +00:00
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jsr CHKNUM
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.endif
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lda FACSIGN
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bmi MI1
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; ----------------------------------------------------------------------------
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; CONVERT FAC TO INTEGER
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; MUST BE -32767 <= FAC <= 32767
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; ----------------------------------------------------------------------------
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AYINT:
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lda FAC
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cmp #$90
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bcc MI2
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lda #<NEG32768
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ldy #>NEG32768
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jsr FCOMP
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MI1:
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bne IQERR
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MI2:
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jmp QINT
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; ----------------------------------------------------------------------------
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; LOCATE ARRAY ELEMENT OR CREATE AN ARRAY
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; ----------------------------------------------------------------------------
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ARRAY:
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lda DIMFLG
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.ifndef CONFIG_SMALL
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ora VALTYP+1
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.endif
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pha
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lda VALTYP
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pha
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ldy #$00
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L2FDE:
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tya
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pha
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lda VARNAM+1
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pha
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lda VARNAM
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pha
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jsr MAKINT
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pla
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sta VARNAM
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pla
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sta VARNAM+1
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pla
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tay
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tsx
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lda STACK+2,x
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pha
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lda STACK+1,x
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pha
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lda FAC_LAST-1
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sta STACK+2,x
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lda FAC_LAST
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sta STACK+1,x
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iny
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jsr CHRGOT
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cmp #$2C
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beq L2FDE
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sty EOLPNTR
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jsr CHKCLS
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pla
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sta VALTYP
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pla
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.ifndef CONFIG_SMALL
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sta VALTYP+1
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and #$7F
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.endif
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sta DIMFLG
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; ----------------------------------------------------------------------------
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; SEARCH ARRAY TABLE FOR THIS ARRAY NAME
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; ----------------------------------------------------------------------------
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ldx ARYTAB
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lda ARYTAB+1
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L301F:
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stx LOWTR
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sta LOWTR+1
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cmp STREND+1
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bne L302B
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cpx STREND
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beq MAKE_NEW_ARRAY
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L302B:
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ldy #$00
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lda (LOWTR),y
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iny
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cmp VARNAM
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bne L303A
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lda VARNAM+1
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cmp (LOWTR),y
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beq USE_OLD_ARRAY
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L303A:
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iny
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lda (LOWTR),y
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clc
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adc LOWTR
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tax
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iny
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lda (LOWTR),y
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adc LOWTR+1
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bcc L301F
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; ----------------------------------------------------------------------------
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; ERROR: BAD SUBSCRIPTS
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; ----------------------------------------------------------------------------
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SUBERR:
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ldx #ERR_BADSUBS
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.byte $2C
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; ----------------------------------------------------------------------------
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; ERROR: ILLEGAL QUANTITY
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; ----------------------------------------------------------------------------
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IQERR:
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ldx #ERR_ILLQTY
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JER:
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jmp ERROR
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; ----------------------------------------------------------------------------
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; FOUND THE ARRAY
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; ----------------------------------------------------------------------------
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USE_OLD_ARRAY:
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ldx #ERR_REDIMD
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lda DIMFLG
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bne JER
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jsr GETARY
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lda EOLPNTR
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ldy #$04
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cmp (LOWTR),y
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bne SUBERR
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jmp FIND_ARRAY_ELEMENT
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; ----------------------------------------------------------------------------
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; CREATE A NEW ARRAY, UNLESS CALLED FROM GETARYPT
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; ----------------------------------------------------------------------------
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MAKE_NEW_ARRAY:
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jsr GETARY
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jsr REASON
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lda #$00
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tay
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sta STRNG2+1
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ldx #BYTES_PER_ELEMENT
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2008-10-18 07:19:59 +00:00
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.if .def(CONFIG_SMALL) && (!.def(CONFIG_2))
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2008-10-13 01:43:59 +00:00
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stx STRNG2
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.endif
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lda VARNAM
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sta (LOWTR),y
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.ifndef CONFIG_SMALL
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bpl L3078
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dex
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L3078:
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.endif
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iny
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lda VARNAM+1
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sta (LOWTR),y
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2008-10-18 07:19:59 +00:00
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.if (!.def(CONFIG_SMALL)) || .def(CONFIG_2)
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2008-10-13 01:43:59 +00:00
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bpl L3081
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dex
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2008-10-18 07:19:59 +00:00
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.if !(.def(CONFIG_SMALL) && .def(CONFIG_2))
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2008-10-13 01:43:59 +00:00
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dex
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2008-10-18 07:19:59 +00:00
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.endif
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2008-10-13 01:43:59 +00:00
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L3081:
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stx STRNG2
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.endif
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lda EOLPNTR
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iny
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iny
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iny
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sta (LOWTR),y
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L308A:
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ldx #$0B
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lda #$00
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bit DIMFLG
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bvc L309A
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pla
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clc
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adc #$01
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tax
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pla
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adc #$00
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L309A:
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iny
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sta (LOWTR),y
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iny
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txa
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sta (LOWTR),y
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jsr MULTIPLY_SUBSCRIPT
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stx STRNG2
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sta STRNG2+1
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ldy INDEX
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dec EOLPNTR
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bne L308A
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adc HIGHDS+1
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bcs GME
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sta HIGHDS+1
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tay
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txa
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adc HIGHDS
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bcc L30BD
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iny
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beq GME
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L30BD:
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jsr REASON
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sta STREND
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sty STREND+1
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lda #$00
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inc STRNG2+1
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ldy STRNG2
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beq L30D1
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L30CC:
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dey
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sta (HIGHDS),y
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bne L30CC
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L30D1:
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dec HIGHDS+1
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dec STRNG2+1
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bne L30CC
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inc HIGHDS+1
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sec
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lda STREND
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sbc LOWTR
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ldy #$02
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sta (LOWTR),y
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lda STREND+1
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iny
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sbc LOWTR+1
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sta (LOWTR),y
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lda DIMFLG
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bne RTS9
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iny
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; ----------------------------------------------------------------------------
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; FIND SPECIFIED ARRAY ELEMENT
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;
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; (LOWTR),Y POINTS AT # OF DIMS IN ARRAY DESCRIPTOR
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; THE SUBSCRIPTS ARE ALL ON THE STACK AS INTEGERS
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; ----------------------------------------------------------------------------
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FIND_ARRAY_ELEMENT:
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lda (LOWTR),y
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sta EOLPNTR
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lda #$00
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sta STRNG2
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L30F6:
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sta STRNG2+1
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iny
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pla
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tax
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sta FAC_LAST-1
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pla
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sta FAC_LAST
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cmp (LOWTR),y
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bcc FAE2
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bne GSE
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iny
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txa
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cmp (LOWTR),y
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bcc FAE3
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; ----------------------------------------------------------------------------
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GSE:
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jmp SUBERR
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GME:
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jmp MEMERR
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; ----------------------------------------------------------------------------
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FAE2:
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iny
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FAE3:
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lda STRNG2+1
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ora STRNG2
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clc
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beq L3124
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jsr MULTIPLY_SUBSCRIPT
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txa
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adc FAC_LAST-1
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tax
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tya
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ldy INDEX
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L3124:
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adc FAC_LAST
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stx STRNG2
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dec EOLPNTR
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bne L30F6
|
2008-10-18 07:19:59 +00:00
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|
|
.if .def(CONFIG_SMALL) && (!.def(CONFIG_2))
|
2008-10-13 01:43:59 +00:00
|
|
|
asl STRNG2
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rol a
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bcs GSE
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asl STRNG2
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rol a
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bcs GSE
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tay
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lda STRNG2
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|
|
.else
|
2008-10-17 05:58:03 +00:00
|
|
|
.ifdef CONFIG_11A
|
2008-10-13 01:43:59 +00:00
|
|
|
sta STRNG2+1
|
2008-10-17 05:58:03 +00:00
|
|
|
.endif
|
2008-10-13 01:43:59 +00:00
|
|
|
ldx #BYTES_FP
|
2008-10-20 00:32:20 +00:00
|
|
|
.ifdef CONFIG_SMALL
|
2008-10-13 01:43:59 +00:00
|
|
|
lda VARNAM+1
|
2008-10-17 05:58:03 +00:00
|
|
|
.else
|
2008-10-13 01:43:59 +00:00
|
|
|
lda VARNAM
|
2008-10-17 05:58:03 +00:00
|
|
|
.endif
|
2008-10-13 01:43:59 +00:00
|
|
|
bpl L3135
|
|
|
|
|
dex
|
|
|
|
|
L3135:
|
2008-10-20 00:32:20 +00:00
|
|
|
.ifdef CONFIG_SMALL
|
2008-10-17 05:58:03 +00:00
|
|
|
stx RESULT+1
|
|
|
|
|
.else
|
2008-10-13 01:43:59 +00:00
|
|
|
lda VARNAM+1
|
|
|
|
|
bpl L313B
|
|
|
|
|
dex
|
|
|
|
|
dex
|
|
|
|
|
L313B:
|
|
|
|
|
stx RESULT+2
|
2008-10-17 05:58:03 +00:00
|
|
|
.endif
|
2008-10-13 01:43:59 +00:00
|
|
|
lda #$00
|
|
|
|
|
jsr MULTIPLY_SUBS1
|
|
|
|
|
txa
|
|
|
|
|
.endif
|
|
|
|
|
adc HIGHDS
|
|
|
|
|
sta VARPNT
|
|
|
|
|
tya
|
|
|
|
|
adc HIGHDS+1
|
|
|
|
|
sta VARPNT+1
|
|
|
|
|
tay
|
|
|
|
|
lda VARPNT
|
|
|
|
|
RTS9:
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
; ----------------------------------------------------------------------------
|
|
|
|
|
; MULTIPLY (STRNG2) BY ((LOWTR),Y)
|
|
|
|
|
; LEAVING PRODUCT IN A,X. (HI-BYTE ALSO IN Y.)
|
|
|
|
|
; USED ONLY BY ARRAY SUBSCRIPT ROUTINES
|
|
|
|
|
; ----------------------------------------------------------------------------
|
|
|
|
|
MULTIPLY_SUBSCRIPT:
|
|
|
|
|
sty INDEX
|
|
|
|
|
lda (LOWTR),y
|
|
|
|
|
sta RESULT_LAST-2
|
|
|
|
|
dey
|
|
|
|
|
lda (LOWTR),y
|
|
|
|
|
MULTIPLY_SUBS1:
|
|
|
|
|
sta RESULT_LAST-1
|
|
|
|
|
lda #$10
|
|
|
|
|
sta INDX
|
|
|
|
|
ldx #$00
|
|
|
|
|
ldy #$00
|
|
|
|
|
L3163:
|
|
|
|
|
txa
|
|
|
|
|
asl a
|
|
|
|
|
tax
|
|
|
|
|
tya
|
|
|
|
|
rol a
|
|
|
|
|
tay
|
|
|
|
|
bcs GME
|
|
|
|
|
asl STRNG2
|
|
|
|
|
rol STRNG2+1
|
|
|
|
|
bcc L317C
|
|
|
|
|
clc
|
|
|
|
|
txa
|
|
|
|
|
adc RESULT_LAST-2
|
|
|
|
|
tax
|
|
|
|
|
tya
|
|
|
|
|
adc RESULT_LAST-1
|
|
|
|
|
tay
|
|
|
|
|
bcs GME
|
|
|
|
|
L317C:
|
|
|
|
|
dec INDX
|
|
|
|
|
bne L3163
|
|
|
|
|
rts
|
|
|
|
|
|
