mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-04 03:05:43 +00:00
993 lines
15 KiB
Plaintext
993 lines
15 KiB
Plaintext
NEW
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AUTO 3,1
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*--------------------------------------
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KW.Lookup >LDYA L.KEYWORDS
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>STYA ZPPtr1
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>LDYA ZPCLBufPtr
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>STYA ZPPtr2
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ldx #0
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.1 ldy #$ff
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.2 jsr .7 get next valid char in src text
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bcs .3
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.20 jsr ToUpperCase
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eor (ZPPtr1),y match table char ?
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asl compare only 7 bits
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bne .4 no match...get next table keyword
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bcc .2 not last char in this keyword
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jsr .7 next char in text...
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bcc .4 valid....failed
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.8 tya Keyword Len
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clc
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rts
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.3 dey
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lda (ZPPtr1),y was last char in this keyword ?
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bmi .8
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iny
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.41 jsr IncPtr1 skip chars to next keyword
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.4 lda (ZPPtr1)
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bpl .41
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jsr IncPtr1
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.6 inx
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lda (ZPPtr1) Array Ending 0, lookup failed
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bne .1
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.9 sec
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rts
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.7 iny
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lda (ZPPtr2),y Get Src text char...
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beq .9 end of text
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jsr IsSpaceOrCR
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bcc .9 end of valid chars
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clc
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rts
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*--------------------------------------
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KW.DUP lda pStack
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beq .9
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cmp #$FF
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beq .9
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cmp #1
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bcc .99
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lda (pStack)
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tax
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ldy #1
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lda (pStack),y
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>PUSHA
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txa
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>PUSHA
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clc
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rts
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.9 lda #E.STACKERROR
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sec
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rts
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.99 lda #E.STKOVERFLOW
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sec
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rts
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*--------------------------------------
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KW.DROP lda pStack
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beq .9
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inc pStack
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beq .9
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inc pStack
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clc
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rts
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.9 lda #E.STACKERROR
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sec
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rts
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*--------------------------------------
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KW.SWAP ldy #3
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lda (pStack),y
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pha
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dey #2
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lda (pStack),y
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pha
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lda (pStack)
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tax
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pla
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sta (pStack)
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txa
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sta (pStack),y #2
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dey #1
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lda (pStack),y
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tax
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pla
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sta (pStack),y
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iny
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iny #3
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txa
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sta (pStack),y
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clc
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rts
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*--------------------------------------
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KW.OVER lda pStack
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sec
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sbc #2
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bcc .9
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ldy #3
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lda (pStack),y
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>PUSHA
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lda (pStack),y
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>PUSHA
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clc
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rts
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.9 lda #E.STKOVERFLOW
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sec
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rts
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*--------------------------------------
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KW.ROT
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*--------------------------------------
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KW.mDUP
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*--------------------------------------
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KW.gR
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*--------------------------------------
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KW.Rg
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*--------------------------------------
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KW.R
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clc
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rts
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*--------------------------------------
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KW.Add jsr CheckStackPop4
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bcs .9
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clc
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ldy #2
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lda (pStack),y
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adc (pStack)
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sta (pStack),y
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inc pStack
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lda (pStack),y
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adc (pStack)
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sta (pStack),y
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inc pStack
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clc
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.9 rts
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*--------------------------------------
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KW.DAdd >FPU ADD32
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clc
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rts
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*--------------------------------------
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KW.Sub jsr CheckStackPop4
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bcs .9
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sec
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ldy #2
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lda (pStack),y
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sbc (pStack)
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sta (pStack),y
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inc pStack
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lda (pStack),y
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sbc (pStack)
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sta (pStack),y
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inc pStack
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clc
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.9 rts
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*--------------------------------------
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KW.Mul jsr CheckStackPop4
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bcs .9
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>PULLW ZPPtr1
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>PULLW ZPPtr2
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stz ZPPtr3
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stz ZPPtr3+1
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ldx #16
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.1 lsr ZPPtr2+1
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ror ZPPtr2
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bcc .2
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clc
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lda ZPPtr1
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adc ZPPtr3
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sta ZPPtr3
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lda ZPPtr1+1
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adc ZPPtr3+1
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sta ZPPtr3+1
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.2 asl ZPPtr1
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rol ZPPtr1+1
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dex
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bne .1
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>PUSHW ZPPtr3
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clc
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.9 rts
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*--------------------------------------
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KW.Div
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*--------------------------------------
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KW.Mod
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*--------------------------------------
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KW.DivMod
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*--------------------------------------
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KW.MulDivMod
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*--------------------------------------
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KW.MulDiv
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clc
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rts
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*--------------------------------------
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KW.MAX jsr CheckStackPop4
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bcs .9
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lda (pStack) LO
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ldy #2
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cmp (pStack),y
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dey #1
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lda (pStack),y HI
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iny
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iny #3
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sbc (pStack),y
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bcc .1
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jsr KW.SWAP
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.1 jmp KW.DROP
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.9 rts
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*--------------------------------------
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KW.MIN jsr CheckStackPop4
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bcs .9
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lda (pStack) LO
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ldy #2
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cmp (pStack),y
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dey #1
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lda (pStack),y HI
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iny
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iny #3
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sbc (pStack),y
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bcs .1
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jsr KW.SWAP
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.1 jmp KW.DROP
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.9 rts
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*--------------------------------------
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KW.ABS
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*--------------------------------------
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KW.DABS
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clc
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rts
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*--------------------------------------
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KW.MINUS lda (pStack) LO
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eor #$ff
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sec
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adc #0
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sta (pStack)
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ldy #1
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lda (pStack),y HI
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eor #$ff
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adc #0
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sta (pStack),y
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clc
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rts
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*--------------------------------------
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KW.DMINUS lda (pStack) LO
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eor #$ff
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sec
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adc #0
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sta (pStack)
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ldy #1
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lda (pStack),y HI
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eor #$ff
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adc #0
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sta (pStack),y
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iny
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lda (pStack),y
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eor #$ff
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adc #0
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sta (pStack),y
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iny
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lda (pStack),y
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eor #$ff
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adc #0
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sta (pStack),y
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clc
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rts
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*--------------------------------------
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KW.AND jsr CheckStackPop4
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bcs .9
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ldy #2
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lda (pStack),y
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and (pStack)
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sta (pStack),y
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inc pStack
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lda (pStack),y
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and (pStack)
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sta (pStack),y
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inc pStack
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clc
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.9 rts
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*--------------------------------------
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KW.OR jsr CheckStackPop4
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bcs .9
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ldy #2
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lda (pStack),y
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ora (pStack)
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sta (pStack),y
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inc pStack
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lda (pStack),y
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ora (pStack)
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sta (pStack),y
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inc pStack
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clc
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.9 rts
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*--------------------------------------
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KW.XOR jsr CheckStackPop4
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bcs .9
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ldy #2
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lda (pStack),y
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eor (pStack)
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sta (pStack),y
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inc pStack
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lda (pStack),y
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eor (pStack)
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sta (pStack),y
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inc pStack
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clc
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.9 rts
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*--------------------------------------
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KW.LWR jsr CheckStackPop4
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bcs .9
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ldy #2
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lda (pStack),y
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cmp (pStack)
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inc pStack
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lda (pStack),y
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sbc (pStack),y
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inc pStack
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ror
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lda #0
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sta (pStack)
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ldy #1
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sta (pStack),y
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clc
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.9 rts
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*--------------------------------------
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KW.GTR jsr CheckStackPop4
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bcs .9
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ldy #2
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lda (pStack),y
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cmp (pStack)
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inc pStack
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lda (pStack),y
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sbc (pStack),y
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inc pStack
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lda #0
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ror
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eor #$80
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sta (pStack)
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ldy #1
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sta (pStack),y
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clc
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.9 rts
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*--------------------------------------
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KW.EQ jsr CheckStackPop4
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bcs .9
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ldy #2
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lda (pStack),y
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sec
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sbc (pStack)
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tax
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inc pStack
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lda (pStack),y
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sbc (pStack)
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inc pStack
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tay
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bne .1
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txa
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bne .1
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sec
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.HS 90 BCC
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.1 clc
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lda #0
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sbc #0
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sta (pStack)
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ldy #1
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sta (pStack),y
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clc
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.9 rts
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*--------------------------------------
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KW.NEGATIVE ldy #1
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lda (pStack),y
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asl
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lda #0
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ror
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sta (pStack)
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sta (pStack),y
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clc
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rts
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*--------------------------------------
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KW.ZERO clc
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ldy #1
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lda (pStack),y
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ora (pStack)
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bne .9
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sec
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.9 lda #0
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ror
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sta (pStack)
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sta (pStack),y
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clc
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rts
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*--------------------------------------
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KW.. jsr KW.DUP
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bcs .9
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ldy #2
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lda L.FMT.int16
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sta (pStack),y
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iny
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lda L.FMT.int16+1
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sta (pStack),y
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>PUSHBI 2
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>SYSCALL PrintF
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* clc
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.9 rts
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*--------------------------------------
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KW..R
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*--------------------------------------
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KW.D.
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*--------------------------------------
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KW.D.R
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clc
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rts
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*--------------------------------------
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KW.CR >PUSHW L.MSG.ECHOCRLF
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>PUSHBI 0
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>SYSCALL PrintF
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rts
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*--------------------------------------
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KW.SPACE lda #C.SPACE
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>SYSCALL PutChar
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rts
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*--------------------------------------
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KW.SPACES >PULLA
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beq .8
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.1 dec
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pha
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lda #C.SPACE
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>SYSCALL PutChar
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pla
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bne .1
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.8 clc
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rts
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*--------------------------------------
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KW.PRINT >LDYAI 256
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>SYSCALL GetMem
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bcs .9
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>STYA ZPPtr1
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phx
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ldy #$ff
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clc
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.1 iny
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lda (ZPCLBufPtr),y
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beq .2
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sta (ZPPtr1),y
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eor #'"
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bne .1
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sec
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.2 sta (ZPPtr1),y
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tya
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adc ZPCLBufPtr
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sta ZPCLBufPtr
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bcc .3
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inc ZPCLBufPtr+1
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.3 >LDYA ZPPtr1
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>SYSCALL PutS
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pla
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>SYSCALL freemem
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jmp NextChar
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.9 rts
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*--------------------------------------
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KW.DUMP
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*--------------------------------------
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KW.TYPE
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*--------------------------------------
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KW.COUNT
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*--------------------------------------
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KW.TERMINAL
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clc
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rts
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*--------------------------------------
|
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KW.KEY >SYSCALL GetChar
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bcs .9
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>PUSHA
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.9 rts
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*--------------------------------------
|
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KW.EMIT >PULLA
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>SYSCALL PutChar
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rts
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*--------------------------------------
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KW.EXPECT
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*--------------------------------------
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KW.WORD
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*--------------------------------------
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KW.NUMBER
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*--------------------------------------
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KW.STARTSTR
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*--------------------------------------
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KW.STRADD
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*--------------------------------------
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KW.STRDBL
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*--------------------------------------
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KW.SIGN
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*--------------------------------------
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KW.ENDSTR
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*--------------------------------------
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KW.HOLD
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*--------------------------------------
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KW.DECIMAL
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*--------------------------------------
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KW.HEX
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*--------------------------------------
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KW.OCTAL clc
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rts
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*--------------------------------------
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KW.FETCHW lda (pStack)
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sta ZPAddrPtr
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ldy #1
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lda (pStack),y
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sta ZPAddrPtr+1
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lda (ZPAddrPtr)
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sta (pStack)
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lda (ZPAddrPtr),y
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sta (pStack),y
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clc
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rts
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*--------------------------------------
|
||
KW.STOREW jsr CheckStackPop4
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bcs .9
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>PULLW ZPAddrPtr
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>PULLA
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sta (ZPAddrPtr)
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>PULLA
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ldy #1
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sta (ZPAddrPtr),y
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* clc
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.9 rts
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||
*--------------------------------------
|
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KW.FETCHB >PULLW ZPAddrPtr
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lda (ZPAddrPtr)
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>PUSHA
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clc
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rts
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*--------------------------------------
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KW.STOREB >PULLW ZPAddrPtr
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>PULLA
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sta (ZPAddrPtr)
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clc
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KW.STOREB.RTS rts
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*--------------------------------------
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KW.FETCHPRINTW jsr KW.FETCHW
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bcs KW.STOREB.RTS
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jmp KW..
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*--------------------------------------
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KW.ADDTOW jsr KW.FETCHW
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bcs KW.STOREB.RTS
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jsr KW.Add
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bcs KW.STOREB.RTS
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jmp KW.STOREW
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*--------------------------------------
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KW.CMOVE
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clc
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rts
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*--------------------------------------
|
||
KW.FILL >PULLA
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bra KW.FILL2
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KW.ERASE lda #0
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bra KW.FILL2
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KW.BLANKS lda #C.SPACE
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||
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KW.FILL2 tax
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||
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>PULLA
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tay
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||
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>PULLW ZPAddrPtr
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|
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txa
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.1 dey
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sta (ZPAddrPtr),y
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cpy #0
|
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bne .1
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|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
KW.HERE >PUSHW ZPDataPtr
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
KW.PAD >PUSHW ZPOutputPtr
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
KW.ALLOT
|
||
KW.nCOMPILE
|
||
KW.QUOTE
|
||
KW.FORGET
|
||
KW.DEFINITIONS
|
||
KW.VOCABULARY
|
||
KW.FORTH
|
||
KW.EDITOR
|
||
KW.ASSEMBLER
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
KW.VLIST
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
KW.BCOLON bit bCompile
|
||
bmi KW.COLON.SYN
|
||
|
||
>PUSHB.G hSList
|
||
>PUSHW ZPCLBufPtr
|
||
|
||
>SYSCALL SListNewKey
|
||
bcs .9
|
||
|
||
>STYA ZPKeyID
|
||
|
||
txa
|
||
jsr NextKW
|
||
|
||
lda #SYM.T.CODE
|
||
sta ZPType
|
||
|
||
>LDYA ZPCodePtr
|
||
>STYA ZPAddrPtr
|
||
|
||
>PUSHB.G hSList
|
||
>PUSHW ZPKeyID
|
||
>PUSHWI ZPType
|
||
>PUSHWI 4
|
||
>SYSCALL SListAddData
|
||
bcs .9
|
||
|
||
sec
|
||
ror bCompile
|
||
|
||
clc
|
||
.9 rts
|
||
|
||
KW.COLON.SYN lda #E.SYN
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
KW.ECOLON bit bCompile
|
||
bpl KW.COLON.SYN
|
||
|
||
lda #$60
|
||
jsr EmitByte
|
||
|
||
stz bCompile
|
||
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
KW.VARIABLE lda pStack
|
||
cmp #$FE
|
||
bcc .99
|
||
|
||
>PUSHB.G hSList
|
||
>PUSHW ZPCLBufPtr
|
||
|
||
>SYSCALL SListNewKey
|
||
bcs .9
|
||
|
||
>STYA ZPKeyID
|
||
|
||
txa
|
||
jsr NextKW
|
||
|
||
lda #SYM.T.VAR
|
||
sta ZPType
|
||
|
||
>LDYA ZPDataPtr
|
||
>STYA ZPAddrPtr
|
||
|
||
>PUSHB.G hSList
|
||
>PUSHW ZPKeyID
|
||
>PUSHWI ZPType
|
||
>PUSHWI 4
|
||
>SYSCALL SListAddData
|
||
bcs .9
|
||
|
||
>PULLA
|
||
sta (ZPDataPtr)
|
||
>PULLA
|
||
ldy #1
|
||
sta (ZPDataPtr),y
|
||
|
||
lda ZPDataPtr
|
||
clc
|
||
adc #2
|
||
sta ZPDataPtr
|
||
bcc .9
|
||
|
||
inc ZPDataPtr+1
|
||
|
||
clc
|
||
.9 rts
|
||
|
||
.99 lda #E.STACKERROR
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
KW.CONSTANT
|
||
*--------------------------------------
|
||
KW.ACODE
|
||
*--------------------------------------
|
||
KW.FCODE
|
||
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
KW.DO tsx
|
||
|
||
lda $101,x
|
||
clc
|
||
adc #0
|
||
pha
|
||
|
||
lda $102,x
|
||
adc #0
|
||
|
||
ldy RP
|
||
sta (pData),y
|
||
dey
|
||
|
||
pla
|
||
sta (pData),y
|
||
dey
|
||
|
||
>PULLA start
|
||
tax
|
||
|
||
>PULLA
|
||
sta (pData),y
|
||
dey
|
||
|
||
txa
|
||
sta (pData),y
|
||
dey
|
||
|
||
>PULLA end+1
|
||
tax
|
||
|
||
>PULLA
|
||
sta (pData),y
|
||
dey
|
||
|
||
txa
|
||
sta (pData),y
|
||
dey
|
||
|
||
sty RP
|
||
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
KW.LOOP lda #1
|
||
ldx #0
|
||
|
||
KW.LOOPax ldy RP
|
||
|
||
iny end+1
|
||
|
||
iny
|
||
iny start
|
||
|
||
clc
|
||
adc (pData),y
|
||
sta (pData),y
|
||
|
||
pha
|
||
|
||
iny
|
||
txa
|
||
adc (pData),y
|
||
sta (pData),y
|
||
|
||
tax
|
||
|
||
pla
|
||
|
||
ldy RP
|
||
iny end+1
|
||
|
||
cmp (pData),y
|
||
txa
|
||
iny
|
||
sbc (pData),y
|
||
bcs .8
|
||
|
||
lda RP
|
||
clc
|
||
adc #5
|
||
tay
|
||
lda (pData),y
|
||
sta ZPPtr1
|
||
iny
|
||
lda (pData),y
|
||
sta ZPPtr1+1
|
||
|
||
pla
|
||
pla
|
||
|
||
jmp (ZPPtr1)
|
||
|
||
.8 lda RP
|
||
clc
|
||
adc #6
|
||
sta RP
|
||
|
||
* clc
|
||
rts
|
||
*--------------------------------------
|
||
PW.pLOOP >PULLA
|
||
tax
|
||
>PULLA
|
||
|
||
bra KW.LOOPax
|
||
*--------------------------------------
|
||
KW.I ldy RP
|
||
|
||
iny end+1
|
||
|
||
iny
|
||
iny start
|
||
|
||
lda (pData),y
|
||
tax
|
||
iny
|
||
|
||
lda (pData),y
|
||
>PUSHA
|
||
|
||
txa
|
||
>PUSHA
|
||
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
KW.LEAVE
|
||
*--------------------------------------
|
||
KW.IF
|
||
*--------------------------------------
|
||
KW.ELSE
|
||
*--------------------------------------
|
||
KW.ENDIF
|
||
*--------------------------------------
|
||
KW.BEGIN
|
||
*--------------------------------------
|
||
KW.UNTIL
|
||
*--------------------------------------
|
||
KW.REPEAT
|
||
*--------------------------------------
|
||
KW.WHILE lda #E.FUNDEF
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
KW.COMMENT
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
MAN
|
||
SAVE usr/src/bin/forth.s.kw
|
||
LOAD usr/src/bin/forth.s
|
||
ASM
|