2021-04-08 20:30:18 +00:00
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NEW
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AUTO 3,1
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.LIST OFF
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*--------------------------------------
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* In: A = current CHAR
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2021-04-29 11:56:34 +00:00
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* Out: CC, longint on stack or pSTR in stack
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2021-04-08 20:30:18 +00:00
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*--------------------------------------
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2021-04-29 11:56:34 +00:00
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EXP.Eval stz EXP.TYPE
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EXP.Eval.R lda EXP.AOPS
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2021-04-10 17:17:40 +00:00
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pha
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2021-04-08 20:30:18 +00:00
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2021-04-10 17:17:40 +00:00
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lda #$FF
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>PUSHA Previous OP = none
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*--------------------------------------
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.10 jsr CORE.GetCharNB
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bcs .39
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2021-05-04 17:31:21 +00:00
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2021-04-10 17:17:40 +00:00
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.11 cmp #'('
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2021-04-16 19:17:18 +00:00
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bne .12
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2021-04-10 17:17:40 +00:00
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jsr CORE.GetNextCharNB skip (
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2021-04-16 19:17:18 +00:00
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bcs .39
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2021-04-10 17:17:40 +00:00
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2021-04-29 11:56:34 +00:00
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jsr EXP.Eval.R
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2021-04-16 19:17:18 +00:00
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bcs .39
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2021-04-08 20:30:18 +00:00
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2021-04-10 17:17:40 +00:00
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jsr CORE.GetCharNB
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2021-04-16 19:17:18 +00:00
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bcs .39
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2021-05-04 17:31:21 +00:00
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2021-04-10 17:17:40 +00:00
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cmp #')'
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2021-04-29 11:56:34 +00:00
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sec
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bne .39
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2021-05-04 17:31:21 +00:00
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2021-04-10 17:17:40 +00:00
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jsr CORE.GetNextCharNB skip )
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bra .41
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2021-04-16 19:17:18 +00:00
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.12 cmp #'"'
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bne .20
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2021-04-29 11:56:34 +00:00
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jsr EXP.CreateStrConst
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2021-04-16 19:17:18 +00:00
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bcs .99
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bra .40
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2021-04-08 20:30:18 +00:00
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*--------------------------------------
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2021-04-10 17:17:40 +00:00
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.20 jsr CORE.IsLetter
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bcs .30 FN or VAR
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>LDYA L.ACOS.FN
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2021-04-08 20:30:18 +00:00
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jsr CORE.Lookup
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2021-04-29 11:56:34 +00:00
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2021-04-10 17:17:40 +00:00
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bcs .21
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2021-04-08 20:30:18 +00:00
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jsr EXP.FNjmpX
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bcs .99
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2021-04-10 17:17:40 +00:00
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bra .40
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2021-04-08 20:30:18 +00:00
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2021-04-10 17:17:40 +00:00
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.21 jsr EXP.VARLookup
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2021-04-08 20:30:18 +00:00
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bcs .99
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2021-04-29 11:56:34 +00:00
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ldx EXP.TYPE
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bne .22
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jsr CODE.INTGET
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bra .40
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.22 jsr CODE.STRGET
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2021-04-10 17:17:40 +00:00
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bra .40
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*--------------------------------------
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.30 jsr CORE.IsDigit10
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.39 bcs .90
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2021-04-29 11:56:34 +00:00
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jsr EXP.Int16
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2021-04-10 17:17:40 +00:00
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bcs .99
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2021-04-08 20:30:18 +00:00
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*--------------------------------------
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2021-04-10 17:17:40 +00:00
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.40 jsr CORE.GetCharNB
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.41 bcs .80
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2021-04-08 20:30:18 +00:00
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2021-04-10 17:17:40 +00:00
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.50 jsr CORE.IsEndExp
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bcs .80
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2021-05-04 17:31:21 +00:00
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jsr CORE.LookupOPS
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2021-04-10 17:17:40 +00:00
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bcs .90
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2021-04-08 20:30:18 +00:00
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2021-04-10 17:17:40 +00:00
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stx EXP.AOPS
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2021-04-08 20:30:18 +00:00
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2021-04-10 17:17:40 +00:00
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.61 lda (pStack) get op context
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bmi .62 no prev op, go get arg2
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2021-04-08 20:30:18 +00:00
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2021-04-10 17:17:40 +00:00
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cmp EXP.AOPS we have arg1 A=op1 arg2 X=op2
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bcc .62
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2021-04-08 20:30:18 +00:00
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2021-04-10 17:17:40 +00:00
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inc pStack prev op has precedence
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2021-05-04 17:31:21 +00:00
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tay
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ldx ACOS.OPS.MAP-1,y
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jsr CODE.FPUCALL go compute (arg1 op1 arg2)
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2021-04-10 17:17:40 +00:00
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.62 lda EXP.AOPS we must compute arg2 op2 arg3 before
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>PUSHA
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2021-04-08 20:30:18 +00:00
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2021-04-10 17:17:40 +00:00
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.63 jsr CORE.GetNextCharNB
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bcs .90
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2021-04-16 19:17:18 +00:00
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jmp .11
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2021-04-10 17:17:40 +00:00
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*--------------------------------------
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.80 >PULLA
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2021-05-04 17:31:21 +00:00
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tay
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2021-04-10 17:17:40 +00:00
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bmi .88 nothing to do
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2021-04-08 20:30:18 +00:00
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2021-05-04 17:31:21 +00:00
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ldx ACOS.OPS.MAP-1,y
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jsr CODE.FPUCALL
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2021-04-10 17:17:40 +00:00
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bra .80
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2021-04-08 20:30:18 +00:00
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2021-04-10 17:17:40 +00:00
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.90 lda #E.ESYN
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2021-04-08 20:30:18 +00:00
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2021-04-10 17:17:40 +00:00
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.99 tay Save Err code
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2021-04-08 20:30:18 +00:00
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2021-04-29 11:56:34 +00:00
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.98 >PULLA
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2021-04-10 17:17:40 +00:00
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tax
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2021-04-29 11:56:34 +00:00
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bpl .98
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2021-04-10 17:17:40 +00:00
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sec
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.HS 90 BCC
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.88 clc
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2021-04-08 20:30:18 +00:00
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2021-04-10 17:17:40 +00:00
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pla
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sta EXP.AOPS
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tya
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2021-04-08 20:30:18 +00:00
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rts
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*--------------------------------------
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EXP.FNjmpX jmp (J.ACOS.FN,x)
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2021-04-10 17:17:40 +00:00
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*--------------------------------------
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2021-04-29 11:56:34 +00:00
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EXP.CreateStrConst
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lda #'$'
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sta EXP.TYPE
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ldy #0
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2021-04-16 19:17:18 +00:00
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.1 jsr CORE.GetNextChar
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bcs .91
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cmp #'"'
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beq .2
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sta (ZPConstBufPtr),y
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iny
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bne .1
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.2 lda #0
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sta (ZPConstBufPtr),y
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2021-04-29 11:56:34 +00:00
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phy
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>LDYA ZPConstBufPtr
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jsr CODE.PUSHIYA
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2021-04-16 19:17:18 +00:00
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2021-04-29 11:56:34 +00:00
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pla
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sec for \0
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2021-04-16 19:17:18 +00:00
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adc ZPConstBufPtr
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sta ZPConstBufPtr
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bcc .3
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inc ZPConstBufPtr+1
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.3 jsr CORE.GetNextCharNB skip "
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clc
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rts
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.91 lda #E.ESYN
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* sec
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rts
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*--------------------------------------
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2021-04-29 11:56:34 +00:00
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EXP.Int16 >PUSHW ZPInputBufPtr
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2021-04-08 20:30:18 +00:00
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>PUSHWI ZPInputBufPtr
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>PUSHBI 10
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>SYSCALL StrToL
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bcs .9
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2021-04-29 11:56:34 +00:00
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jsr CODE.PUSHINT16
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2021-04-08 20:30:18 +00:00
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>POP 4
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clc
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.9 rts
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*--------------------------------------
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EXP.VARLookup >LDA.G hVars
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>PUSHA
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>PUSHA for SListGetData
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>PUSHW ZPInputBufPtr
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>SYSCALL SListLookup
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bcs .9
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>PUSHYA ZPSID
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txa
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2021-04-11 19:47:48 +00:00
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jsr CORE.SkipA
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2021-04-08 20:30:18 +00:00
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.1 >PUSHWI EXP.ADDR
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2021-04-11 19:47:48 +00:00
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>PUSHWI 3 3 bytes : ADDR + TYPE
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2021-04-08 20:30:18 +00:00
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>PUSHWZ From Start
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>SYSCALL SListGetData
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2021-04-29 11:56:34 +00:00
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bcs .99
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ldx #0
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jsr CORE.GetChar
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bcs .2
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cmp #'$'
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bne .2
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tax
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jsr CORE.GetNextChar skip $
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.2 cpx EXP.TYPE
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bne .90
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clc
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2021-04-08 20:30:18 +00:00
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rts
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.9 >PULLA
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2021-04-29 11:56:34 +00:00
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.99 rts
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.90 lda #E.TMISMATCH
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sec
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2021-04-08 20:30:18 +00:00
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rts
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*--------------------------------------
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*--------------------------------------
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MAN
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SAVE usr/src/bin/acos.s.exp
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LOAD usr/src/bin/acos.s
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ASM
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