mirror of https://github.com/A2osX/A2osX.git
728 lines
12 KiB
Plaintext
728 lines
12 KiB
Plaintext
NEW
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AUTO 3,1
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.LIST OFF
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*--------------------------------------
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CORE.Init >LDYAI CODESEG
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>SYSCALL GetMem
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bcs .9
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>STYA ZPCodeBufPtr
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txa
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>STA.G hCodeBuf
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>LDYAI CONSTSEG
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>SYSCALL GetMem
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bcs .9
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>STYA ZPConstBufPtr
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txa
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>STA.G hConstBuf
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>LDYAI DATASEG
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>SYSCALL GetMem
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bcs .9
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>STYA ZPDataBufPtr
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txa
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>STA.G hDataBuf
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>SYSCALL SListNew
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bcs .9
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>STA.G hLabels
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>SYSCALL SListNew
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bcs .9
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>STA.G hVars
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>LDYAI STRVSEG
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>SYSCALL StrVNew
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bcs .9
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sta hStrings
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>LDYAI 256
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>SYSCALL GetMem
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bcs .9
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>STYA ZPStrBuf
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txa
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>STA.G hStrBuf
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>LDYAI FWREF
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>SYSCALL GetMem
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>STYA ZPFWRefBufPtr
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txa
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>STA.G hFWRefBuf
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lda #0
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sta (ZPFWRefBufPtr)
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clc
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.9 rts
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*--------------------------------------
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CORE.Quit lda hStrings
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beq .1
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>SYSCALL StrVFree
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.1 ldy #hStrBuf
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jsr CORE.Quit.Freemem
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ldy #hDataBuf
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jsr CORE.Quit.Freemem
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ldy #hConstBuf
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jsr CORE.Quit.Freemem
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ldy #hCodeBuf
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jsr CORE.Quit.Freemem
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*--------------------------------------
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CORE.Cleanup ldy #hFWRefBuf
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jsr CORE.Quit.Freemem
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>LDA.G hVars
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beq .1
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>PUSHA
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>SYSCALL SListFree
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>STZ.G hVars
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.1 >LDA.G hLabels
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beq .8
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>PUSHA
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>SYSCALL SListFree
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>STZ.G hLabels
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.8 clc
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CORE.Quit.RTS rts
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*--------------------------------------
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CORE.Quit.Freemem
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lda (pData),y
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beq .8
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pha
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lda #0
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sta (pData),y
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pla
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>SYSCALL FreeMem
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.8 rts
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*--------------------------------------
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CORE.Compile jsr CORE.GetChar
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bcs CORE.Quit.RTS
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cmp #'#'
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beq .80 #/bin/acos....
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cmp #';'
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beq .80 Comment: skip line...
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cmp #C.CR
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beq .88 EOL
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jsr CORE.CheckCharNB
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bcs .1 CS=SPACE -> go check VAR or KW
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jsr CORE.IsLetter LABEL must start with a letter
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bcs .99
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jsr CORE.CreateLabel
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bcs .99
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bra .8
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*--------------------------------------
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.1 jsr CORE.GetNextCharNB skip SPACE(s) or ":"
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bcs .99
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cmp #C.CR
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beq .88 EOL
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jsr CORE.IsLetter
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bcs .90
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>LDYA L.ACOS.KW
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jsr CORE.Lookup
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bcs .3
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jmp (J.ACOS.KW,x)
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*--------------------------------------
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.3 jsr CORE.CreateOrGetVar
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bcs .90
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jsr CORE.GetCharNB
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bcs .90
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cmp #'='
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bne .90
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jsr CORE.GetNextCharNB skip '='
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bcs .90
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jsr EXP.Eval ZPTYPE set by CreateOrGetVar
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bcs .99
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lda ZPTYPE
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cmp EXP.TYPE
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bne .91
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tax
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beq .4
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jsr CODE.STRSET Store String in hSTRV
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bra .8
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.4 jsr CODE.INTSET Store Int16 result in DATASEG
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*--------------------------------------
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.8 jsr CORE.GetCharNB
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bcs .99
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cmp #':'
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beq .1
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cmp #C.CR
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bne .90
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.88 clc
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jmp CORE.GetNextChar skip char
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.80 jmp CORE.SkipLine
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.90 lda #E.CSYN
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sec
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.99 rts
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.91 lda #E.TMISMATCH
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sec
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rts
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*--------------------------------------
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CORE.FWREF >LDA.G hFWRefBuf
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>SYSCALL GetMemPtr
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>STYA ZPInputBufPtr
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.1 lda (ZPInputBufPtr)
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beq .8
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sta ZPPtr1+1
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jsr CORE.GetNextChar
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sta ZPPtr1
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jsr CORE.GetNextChar
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jsr CORE.GetLabel
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bcs .9
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lda ZPADDR
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sta (ZPPtr1)
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ldy #1
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lda ZPADDR+1
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sta (ZPPtr1),y
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bra .1
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.8 clc
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rts
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.9 >PUSHW L.MSG.FWREFERR
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>PUSHW ZPInputBufPtr
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>PUSHBI 2
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>SYSCALL PrintF
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sec
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rts
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*--------------------------------------
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CORE.Run lda #$0 RTS
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sta (ZPCodeBufPtr)
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jsr CORE.Cleanup
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lda ZPCodeBufPtr
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sta ZPPtr1
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lda ZPCodeBufPtr+1
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sta ZPPtr1+1
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>LDA.G hCodeBuf
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>SYSCALL GetMemPtr
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>STYA ZPCodeBufPtr
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lda ZPPtr1
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sec
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sbc ZPCodeBufPtr
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sta ZPPtr2
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lda ZPPtr1+1
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sbc ZPCodeBufPtr+1
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sta ZPPtr2+1
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>PUSHW L.MSG.RUN
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>PUSHW ZPPtr2
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>PUSHBI 2
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>SYSCALL PrintF
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jmp (ZPCodeBufPtr)
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*--------------------------------------
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CORE.LookupOPS lda (ZPInputBufPtr)
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jsr CORE.IsOPSChar
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bcc .55
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jsr CORE.IsLetter
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bcs .99
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sec
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.55 ror bFlag
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>LDYA L.ACOS.OPS
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>STYA ZPPtr1
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ldx #0
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.1 ldy #$ff
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.2 jsr .10 get next valid char in src text
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bcs .4
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jsr CORE.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 .6 no match...get next table keyword
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bcc .2 not last char in this keyword
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jsr .10 next char in text...
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bcc .4 valid....failed
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.3 tya Keyword Len
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jmp CORE.SkipA
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.4 dey
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lda (ZPPtr1),y was last char in this keyword ?
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bmi .3
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iny
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.5 jsr CORE.IncPtr1 skip chars to next keyword
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.6 lda (ZPPtr1)
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bpl .5
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jsr CORE.IncPtr1
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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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*--------------------------------------
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.10 iny
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lda (ZPInputBufPtr),y Get Src text char...
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beq .19 end of text
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bit bFlag
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bmi .11 Letter expected
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jmp CORE.IsOPSChar
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.11 jmp CORE.IsLetter
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.19 sec
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.99 rts
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*--------------------------------------
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CORE.Lookup >STYA ZPPtr1
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ldx #0
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.1 ldy #$ff
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.2 jsr .10 get next valid char in src text
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bcs .4
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jsr CORE.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 .6 no match...get next table keyword
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bcc .2 not last char in this keyword
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jsr .10 next char in text...
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bcc .4 valid....failed
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.3 tya Keyword Len
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jmp CORE.SkipA
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.4 dey
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lda (ZPPtr1),y was last char in this keyword ?
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bmi .3
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iny
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.5 jsr CORE.IncPtr1 skip chars to next keyword
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.6 lda (ZPPtr1)
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bpl .5
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jsr CORE.IncPtr1
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inx
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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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*--------------------------------------
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.10 iny
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lda (ZPInputBufPtr),y Get Src text char...
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beq .9 end of text
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cmp #'$'
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bne .11
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clc
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rts
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.11 jmp CORE.IsLetterOrDigit CS=end of valid chars
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*--------------------------------------
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CORE.IncPtr1 inc ZPPtr1
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bne .8
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inc ZPPtr1+1
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.8 rts
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*--------------------------------------
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CORE.CreateLabel
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>LDA.G hLabels
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jsr CORE.NewKey
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bcs .9
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>PUSHB.G hLabels
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>PUSHW ZPSID
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>PUSHWI ZPCodeBufPtr
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>PUSHWI 2 2 bytes : ADDR
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>SYSCALL SListAddData
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.9 rts
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*--------------------------------------
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CORE.GetLabel >PUSHB.G hLabels
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>PUSHW ZPInputBufPtr
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>SYSCALL SListLookup
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bcs .9
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>STYA ZPSID
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txa
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jsr CORE.SkipA
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>PUSHB.G hLabels
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>PUSHW ZPSID
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>PUSHWI ZPADDR
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>PUSHWI 2 2 bytes : ADDR
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>PUSHWZ From Start
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>SYSCALL SListGetData
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.9 rts
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*--------------------------------------
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CORE.AddFWRef lda ZPCodeBufPtr+1
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jsr CORE.2FWRefBuf
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lda ZPCodeBufPtr
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jsr CORE.2FWRefBuf
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ldy #$ff
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.1 iny
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lda (ZPInputBufPtr),y
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beq .8
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jsr CORE.IsIDValid
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bcs .8
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jsr CORE.2FWRefBuf
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bra .1
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.8 tya
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jsr CORE.SkipA
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lda #0
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clc
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*--------------------------------------
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CORE.2FWRefBuf sta (ZPFWRefBufPtr)
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inc ZPFWRefBufPtr
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bne .8
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inc ZPFWRefBufPtr+1
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.8 rts
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*--------------------------------------
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CORE.CreateOrGetVar
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>LDA.G hVars
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jsr CORE.GetAddr
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bcc .2
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>LDA.G hVars
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jsr CORE.NewKey
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bcs .99
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jsr CORE.GetChar
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bcs .1
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stz ZPTYPE
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cmp #'$'
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bne .1
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sta ZPTYPE
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jsr CORE.GetNextChar skip $
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lda STRID
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sta ZPADDR
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lda STRID+1
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sta ZPADDR+1
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inc STRID
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bne .10
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inc STRID+1
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bra .10
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.1 lda ZPDataBufPtr
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sta ZPADDR
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clc
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adc #2 Word
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sta ZPDataBufPtr
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lda ZPDataBufPtr+1
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sta ZPADDR+1
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adc #0
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sta ZPDataBufPtr+1
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.10 >PUSHB.G hVars
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>PUSHW ZPSID
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>PUSHWI ZPADDR
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>PUSHWI 3 3 bytes : ADDR + TYPE
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>SYSCALL SListAddData
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rts
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*--------------------------------------
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.2 ldx #0
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jsr CORE.GetChar
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bcs .3
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cmp #'$'
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bne .3
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tax
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jsr CORE.GetNextChar skip $
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.3 cpx ZPTYPE
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bne .90
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clc
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rts
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.90 lda #E.TMISMATCH
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sec
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.99 rts
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*--------------------------------------
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CORE.NewKey >PUSHA
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>PUSHW ZPInputBufPtr
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>SYSCALL SListNewKey
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bcs CORE.GetAddr.RTS
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>STYA ZPSID
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txa
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jmp CORE.SkipA
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*--------------------------------------
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CORE.GetAddr >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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>STYA ZPSID
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txa
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jsr CORE.SkipA
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.1 >PUSHW ZPSID
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>PUSHWI ZPADDR
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>PUSHWI 3 3 bytes : ADDR + TYPE
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>PUSHWZ From Start
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>SYSCALL SListGetData
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rts
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.9 >POP 1
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CORE.GetAddr.RTS
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rts
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*--------------------------------------
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CORE.ToUpperCase
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cmp #'a'
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bcc .8
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cmp #'z'+1
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bcs .8
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eor #$20
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.8
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CORE.ToUpperCase.RTS
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rts
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*--------------------------------------
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CORE.IsOPSChar phx
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ldx #ACOS.OPSChars.Cnt-1
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.1 cmp ACOS.OPSChars,x
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beq .8
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dex
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bpl .1
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plx
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sec
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rts
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.8 plx
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clc
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rts
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*--------------------------------------
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CORE.IsEndExp cmp #')'
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beq CORE.ToUpperCase.RTS
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cmp #','
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beq CORE.ToUpperCase.RTS
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cmp #';'
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beq CORE.ToUpperCase.RTS
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CORE.IsEndInst cmp #':' CS=TRUE
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beq .8
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cmp #C.CR
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beq .8
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clc
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.8 rts
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*---------------------------------------
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CORE.IsIDValid cmp #'.'
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clc
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beq CORE.IsLetterRTS
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*---------------------------------------
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CORE.IsLetterOrDigit
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jsr CORE.IsDigit10
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bcc CORE.IsLetterRTS
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*---------------------------------------
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CORE.IsLetter cmp #'_'
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bne .1
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clc
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rts
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.1 cmp #'A'
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bcc .9
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cmp #'Z'+1
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bcc CORE.IsLetterRTS
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cmp #'a'
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bcc .9
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cmp #'z'+1
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rts CC if lowercase
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.9 sec
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CORE.IsLetterRTS
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rts
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*---------------------------------------
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CORE.IsDigit10 cmp #'0'
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bcc .9
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cmp #'9'+1
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rts cc if ok, cs if not
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.9 sec
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rts
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*--------------------------------------
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CORE.CheckCharNB
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cmp #C.SPACE
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beq .9
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cmp #C.LF
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beq .9
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cmp #C.TAB
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beq .9
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clc
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.9 rts
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*--------------------------------------
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CORE.GetCharNB jsr CORE.GetChar
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bcs CORE.GetNextCharNB.RTS
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jsr CORE.CheckCharNB
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bcc CORE.GetNextCharNB.RTS
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*--------------------------------------
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CORE.GetNextCharNB
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jsr CORE.GetNextChar
|
||
bcs CORE.GetNextCharNB.RTS
|
||
|
||
jsr CORE.CheckCharNB
|
||
bcs CORE.GetNextCharNB
|
||
|
||
CORE.GetNextCharNB.RTS
|
||
rts
|
||
*--------------------------------------
|
||
CORE.SkipA clc
|
||
adc ZPInputBufPtr
|
||
sta ZPInputBufPtr
|
||
bcc .1
|
||
|
||
clc
|
||
inc ZPInputBufPtr+1
|
||
|
||
.1 rts Exit with CC for JMP to
|
||
*--------------------------------------
|
||
CORE.SkipLine jsr CORE.GetNextChar
|
||
bcs CORE.GetNextCharNB.RTS
|
||
|
||
cmp #C.CR
|
||
bne CORE.SkipLine
|
||
*--------------------------------------
|
||
CORE.GetNextChar
|
||
inc ZPInputBufPtr
|
||
bne CORE.GetChar
|
||
inc ZPInputBufPtr+1
|
||
*--------------------------------------
|
||
CORE.GetChar lda (ZPInputBufPtr)
|
||
bne .8
|
||
|
||
lda #MLI.E.EOF
|
||
sec
|
||
rts
|
||
|
||
.8 clc
|
||
rts
|
||
*--------------------------------------
|
||
MAN
|
||
SAVE usr/src/bin/acos.s.core
|
||
LOAD usr/src/bin/acos.s
|
||
ASM
|