mirror of https://github.com/A2osX/A2osX.git
1190 lines
18 KiB
Plaintext
1190 lines
18 KiB
Plaintext
NEW
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AUTO 3,1
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.LIST OFF
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*--------------------------------------
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CSH.Init lda #SL._
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>SYSCALL SListNew
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bcs .99
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>STA.G CSH.hDefines
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lda #SL._
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>SYSCALL SListNew
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bcs .99
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>STA.G CSH.hTags
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lda #SL._
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>SYSCALL SListNew
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bcs .9
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>STA.G CSH.hSymbols
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>LDYAI 256
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>SYSCALL GetMem
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.99 bcs .9
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>STYA ZPCSHCode
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txa
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>STA.G CSH.hCode
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>LDYAI 256
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>SYSCALL GetMem
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bcs .9
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>STYA ZPCSHConst
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txa
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>STA.G CSH.hConst
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>LDYAI 256
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>SYSCALL GetMem
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bcs .9
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>STYA ZPCSHData
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txa
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>STA.G CSH.hData
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>LDYAI 256
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>SYSCALL GetMem
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bcs .9
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>STYA ZPCSHStack
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txa
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>STA.G CSH.hStack
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>LDYAI 256
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>SYSCALL GetMem
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bcs .9
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>STYA ZPCSHfDecl
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txa
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>STA.G CSH.hfDecl
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lda #0
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>STA.G CSH.ConstPtr
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>STA.G CSH.StackPtr
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* clc
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.9 rts
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*--------------------------------------
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CSH.Quit >LDA.G CSH.hSymbols
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beq .1
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>SYSCALL SListFree
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.1 >LDA.G CSH.hTags
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beq .2
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>SYSCALL SListFree
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.2 >LDA.G CSH.hDefines
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beq .3
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>SYSCALL SListFree
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.3 lda hInclude
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beq .4
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>SYSCALL FClose
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.4 lda hDefine
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jsr .7
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>LDA.G hFileBuf
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jsr .7
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>LDA.G CSH.hfDecl
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jsr .7
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>LDA.G CSH.hStack
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jsr .7
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>LDA.G CSH.hData
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jsr .7
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>LDA.G CSH.hConst
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jsr .7
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>LDA.G CSH.hCode
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.7 beq CSH.Quit.RTS
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>SYSCALL FreeMem
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CSH.Quit.RTS rts
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*--------------------------------------
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CSH.Run jsr CSH.GetCharNB
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bcs CSH.Quit.RTS
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CSH.Run.1 cmp #C.CR empty line....
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beq .2
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cmp #'/'
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bne .3 comments ...
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jmp CSH.COMMENTS
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.2 jmp CSH.GetNextChar Skip CR and exit
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.3 cmp #'#' directive ?
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bne .4
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jmp CSH.DIR
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.4 cmp #'}' End of block ?
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bne .10
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jsr CSH.CheckStack must be something on stack....
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bcs CSH.Quit.RTS
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jsr CSH.GetNextCharNB Skip '}'
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jsr CSH.Pop was expected....
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jsr CSH.Pop get stacked Cmd...
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tax
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jmp (J.CSH.KW.END,x)
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*--------------------------------------
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.10 jsr CSH.IsLetter
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bcc .20
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* TODO: PREOPS ++ --.....
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bcs .29
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*--------------------------------------
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.20 >LDYA L.CSH.TMODS
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jsr CSH.LookupID
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bcs .50
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jsr CSH.tDecl
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bcs .59
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>STYA ZPVarType Type/Qual
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jsr CSH.AddSymbol add with undef value...
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bcs .29 OOM or DUP
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lda ZPVarQual
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bit #CSH.Q.FUNC
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bne .21
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jsr CSH.GetCharNB
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bcs .99
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cmp #';'
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beq .69
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cmp #'='
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bne .99
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jsr CSH.GetNextCharNB skip '='
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bcs .99
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>LDYA ZPVarType T/Q
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jsr CSH.ExpEval
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bcs .9
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jsr CSH.SetVarValue Y,A Type/qual, Set value to this var
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.29 bcs .9
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bra .68
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.21 jsr CSH.fDecl
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bcs .9
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bra .68
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*--------------------------------------
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.50 jsr CSH.SavePtr Save Ptr, in case of while,for....
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>LDYA L.CSH.KW
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jsr CSH.LookupID
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bcs .6 not an internal CSH keyword....
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jsr CSH.KW.JMP
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.59 bcs .9
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bra .8
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*--------------------------------------
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.6 jsr CSH.GetVar I = ?
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bcs .7
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>STYA ZPVarID
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jsr CSH.GetVarDef Get Type & ptr...
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bcs .9
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lda ZPVarQual
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bit #CSH.Q.FUNC
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beq .60
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ldy #0 func( ?
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lda #0
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jsr CSH.fExec
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bcs .9
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bra .8
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*--------------------------------------
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.60 jsr CSH.GetCharNB
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bcs .9
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cmp #'=' TODO: all AOPS
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bne .99
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jsr CSH.GetNextChar Skip =
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bcs .99
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>LDYA ZPVarType T/Q
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jsr CSH.ExpEval
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bcs .9
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jsr CSH.SetVarValue
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bcs .9
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.68 jsr CSH.GetCharNB
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cmp #';'
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.69 beq .8
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.99 lda #E.CSYN
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sec
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.9 rts
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*--------------------------------------
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.7 ldy #0 no return value type check required
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lda #0
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jsr CSH.fCall Y,A = Type/Qual
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bcs .9
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jsr CSH.GetVarSize Y,A = returned value type
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clc A = Sizeof, CC to ignore Pointer hMem
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adc pStack
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sta pStack Discard value on stack
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.8 jsr CSH.GetNextCharNB Skip ;
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bcs .9
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cmp #C.CR
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beq .80
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jmp CSH.Run.1
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.80 jmp CSH.GetNextChar Skip CR
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*--------------------------------------
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CSH.COMMENTS jsr CSH.GetNextChar
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cmp #'/'
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bne .90
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jmp CSH.SkipLine skip line.....
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.90 lda #E.CSYN
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sec
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rts
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*--------------------------------------
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CSH.SkipLine jsr CSH.GetNextChar
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bcs .9
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cmp #C.CR
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bne CSH.SkipLine
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jmp CSH.GetNextChar Skip CR
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.9 rts
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*--------------------------------------
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CSH.SavePtr >LDYA ZPInputBufPtr
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>STYA.G CSH.BufPtrSave
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rts
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*--------------------------------------
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CSH.LookupFN sec
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.HS 90 BCC
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CSH.LookupID clc
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>STYA ZPPtr1
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ror
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>STA.G CSH.LookupOpt
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jsr CSH.GetIDLen
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bra CSH.Lookup
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CSH.LookupOP >STYA ZPPtr1
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>STZ.G CSH.LookupOpt
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jsr CSH.GetOPLen
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CSH.Lookup phy Y = len
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ldx #0
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.1 lda (ZPPtr1)
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beq .9 Ending 0, not found....
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pla
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pha Get Back Len
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cmp (ZPPtr1) Same Len ?
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bne .4
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tay
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.2 lda (ZPPtr1),y
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.3 dey
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cmp (ZPInputBufPtr),y
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bne .4
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tya
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bne .2
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pla Found keyword...
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clc
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adc ZPInputBufPtr ..advance Ptr to char after it..
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sta ZPInputBufPtr
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bcc .31
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inc ZPInputBufPtr+1
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.31 lda ZPPtr1
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sec
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adc (ZPPtr1)
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tay
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lda ZPPtr1+1
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adc #0
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clc Y,A = F() def, X = F() index
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.8 rts
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.4 inx
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inx
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lda (ZPPtr1)
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jsr CSH.ZPPtr1AddAp1
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>LDA.G CSH.LookupOpt
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bpl .1
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ldy #$0 Start at Y=2 for VOID func()
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.6 iny
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iny
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lda (ZPPtr1),y
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bne .6
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tya
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jsr CSH.ZPPtr1AddAp1
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bra .1
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.9 pla
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sec
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rts
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*--------------------------------------
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CSH.MainExec lda #0
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>PUSHA
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ldy #S.PS.ARGC
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lda (pPS),y
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>PUSHA push int ARGC
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>PUSHW ZPCSHConst push int ARGV
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stz ArgIndex
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.1 lda ArgIndex
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>SYSCALL ArgV
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bcs .2
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inc ArgIndex
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pha
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tya
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sta (ZPCSHConst)
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pla
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ldy #1
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sta (ZPCSHConst),y
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lda ZPCSHConst
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* clc
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adc #2
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sta ZPCSHConst
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bcc .1
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inc ZPCSHConst+1
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bra .1
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.2
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*--------------------------------------
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CSH.ZPPtr1GetNextW
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jsr CSH.ZPPtr1NextW
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*--------------------------------------
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CSH.ZPPtr1GetW lda (ZPPtr1)
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beq .8
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pha
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ldy #1
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lda (ZPPtr1),y
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ply
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.8 rts
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*--------------------------------------
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CSH.ZPPtr1NextW jsr .1
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.1 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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CSH.ZPPtr1AddAp1
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sec
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adc ZPPtr1
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sta ZPPtr1
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bcc .1
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inc ZPPtr1+1
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.1 rts
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*--------------------------------------
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* Input : ZPInputBufPtr
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* Output : Y,A = VarID
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*--------------------------------------
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CSH.AddSymbol >LDA.G CSH.hSymbols
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jsr CSH.NewKey
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bcs .9
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>STYA ZPVarID
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>LDYA ZPVarType
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jsr CSH.GetVarSize CS if pointer
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sta ZPVarSizeOf
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* clc / sec
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lda ZPCSHData
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sta ZPVarDataPtr
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adc ZPVarSizeOf
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sta ZPCSHData
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lda ZPCSHData+1
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sta ZPVarDataPtr+1
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adc ZPVarSizeOf+1
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sta ZPCSHData+1
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>LDA.G CSH.DataPtr
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clc
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adc ZPVarSizeOf
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sta (pData),y
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bcs .99
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jsr CSH.GetCharNB
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bcs .8
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cmp #'('
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beq .7
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lda ZPVarQual
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and #CSH.Q.FUNC
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beq .8
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lda #E.CSYN
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sec
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rts
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.7 lda #CSH.Q.FUNC
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tsb ZPVarQual
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lda ZPCSHfDecl
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sta ZPVarDefPtr
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lda ZPCSHfDecl+1
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sta ZPVarDefPtr+1
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.8 >PUSHB.G CSH.hSymbols
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>PUSHW ZPVarID
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>PUSHWI ZPVarDef
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>PUSHWI 8
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>SYSCALL SListAddData
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.9 rts
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.99 lda #E.OOM
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* sec
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rts
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*--------------------------------------
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* ZPVarDataPtr = fDef
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*--------------------------------------
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CSH.fExec ldx ZPPtr1
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phx
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ldx ZPPtr1+1 local : fdef Ptr
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phx
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ldx ZPPtr2 local : type
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phx
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ldx ZPPtr2+1 local : qual
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phx
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ldx ZPPtr3 local : variadic size
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phx
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ldx ZPPtr3+1 local : f
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phx
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>STYA ZPPtr2 save Type/qual
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>LDYA ZPVarDefPtr
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>STYA ZPPtr1
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stz ZPPtr3 Reset VARIADIC byte count
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jsr CSH.GetNextCharNB skip '('
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bcs .10
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jsr CSH.ZPPtr1GetW Y,A = Return value Type/Qual
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ldx ZPPtr2
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beq .1 no check required
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cpy ZPPtr2
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bne .91
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cmp ZPPtr2+1
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bne .91
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.1 eor #CSH.Q.FUNC
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>STYA ZPPtr2 this will be the returned type/qual
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jsr CSH.ZPPtr1GetNextW advance to arg list type
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beq .7 end of list, go check ending ')'
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*--------------------------------------
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.3 cpy #CSH.T.VARIADIC if VARIADIC, don't advance to next arg and assume type = 0
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bne .4
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ldy #0
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lda #0
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.4 jsr CSH.ExpEval Y,A = 0 if VARIADIC
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bcs .93
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jsr CSH.GetVarSize Y,A = Var Type/Qual
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tax
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lda (ZPPtr1)
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eor #CSH.T.VARIADIC
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bne .5
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txa
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clc make sure pointer only 2 bytes
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adc ZPPtr3
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sta ZPPtr3 Add to byte count
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bra .51 stay on VARIADIC tag
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.5 jsr CSH.ZPPtr1NextW
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.51 jsr CSH.GetCharNB
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.10 bcs .90
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cmp #','
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bne .6
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jsr CSH.GetNextCharNB Skip ','
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jsr CSH.ZPPtr1GetW
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bne .3 Another ARG....
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.52 bra .90 extra args....error
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.6 cmp #')'
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bne .90
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jsr CSH.ZPPtr1GetW
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beq .8 no more arg after ')', exit
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cpy #CSH.T.VARIADIC
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bne .90 missing arg
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>PUSHB ZPPtr3 push VARIADIC byte count
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.7 jsr CSH.GetCharNB
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bcs .90
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cmp #')'
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bne .90
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.8 jsr CSH.GetNextCharNB Skip )
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* ldx ZPPtr3+1
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* jsr CSH.Exec
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* bcs .93
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>LDYA ZPPtr2 type/qual
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bra .93
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.90 lda #E.CSYN
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bra .92
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.91 lda #E.TMISMATCH
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.92 sec
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.93 plx
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stx ZPPtr3+1
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plx
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stx ZPPtr3
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plx
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stx ZPPtr2+1
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plx
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stx ZPPtr2
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plx
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stx ZPPtr1+1
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plx
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stx ZPPtr1
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.99 rts
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*--------------------------------------
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CSH.fDecl >ENTER 2
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|
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lda #0
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sta (pStack) hLocal
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lda ZPVarType
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jsr CSH.fDeclAddA
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lda ZPVarQual
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||
jsr CSH.fDeclAddA
|
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|
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jsr CSH.GetNextCharNB Skip (
|
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bcs .9
|
||
|
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.1 cmp #')'
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beq .6
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|
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.2 jsr CSH.fDeclGetArg
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bcs .99
|
||
|
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pha
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tya
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jsr CSH.fDeclAddA
|
||
|
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pla
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jsr CSH.fDeclAddA
|
||
|
||
jsr CSH.GetCharNB
|
||
bcs .9
|
||
|
||
jsr CSH.IsLetter
|
||
bcs .5
|
||
|
||
* TODO: AddLocal
|
||
|
||
.3 jsr CSH.GetNextCharNB
|
||
bcs .9
|
||
|
||
jsr CSH.IsLetterOrDigit
|
||
bcc .3
|
||
|
||
|
||
|
||
.5 cmp #')'
|
||
beq .6
|
||
|
||
cmp #','
|
||
bne .9
|
||
|
||
jsr CSH.GetNextCharNB Skip ,
|
||
bcs .9
|
||
|
||
bra .2
|
||
|
||
.6 jsr CSH.GetNextCharNB Skip )
|
||
bcs .9
|
||
|
||
cmp #';'
|
||
beq .7
|
||
|
||
|
||
* TODO: f() body
|
||
|
||
bra .9
|
||
*--------------------------------------
|
||
.7 lda #0
|
||
* sta ZPVarDataPtr
|
||
* sta ZPVarDataPtr+1
|
||
|
||
.8 lda #0
|
||
jsr CSH.fDeclAddA
|
||
|
||
clc
|
||
bra .99
|
||
|
||
.9 lda #E.CSYN
|
||
sec
|
||
|
||
.99 >LEAVE
|
||
rts
|
||
*--------------------------------------
|
||
CSH.fDeclGetArg lda (ZPInputBufPtr)
|
||
cmp #'.'
|
||
bne .5
|
||
|
||
ldx #2
|
||
|
||
.1 jsr CSH.GetNextChar
|
||
bcs .9
|
||
|
||
cmp #'.'
|
||
bne .9
|
||
|
||
dex
|
||
bne .1
|
||
|
||
jsr CSH.GetNextCharNB
|
||
bcs .9
|
||
|
||
eor #')'
|
||
bne .9
|
||
|
||
ldy #CSH.T.VARIADIC Type
|
||
* lda #0 Qual
|
||
* clc
|
||
rts
|
||
|
||
.5 >LDYA L.CSH.TMODS
|
||
jsr CSH.LookupID
|
||
bcs .9
|
||
|
||
jsr CSH.tDecl
|
||
bcs .9
|
||
|
||
* Y,A = Type/Qual
|
||
|
||
bra .8
|
||
|
||
.9 lda #E.CSYN
|
||
sec
|
||
|
||
.8 rts
|
||
*--------------------------------------
|
||
CSH.fDeclAddA sta (ZPCSHfDecl)
|
||
inc ZPCSHfDecl
|
||
bne .8
|
||
|
||
inc ZPCSHfDecl+1
|
||
|
||
.8 rts
|
||
*--------------------------------------
|
||
CSH.tDecl >ENTER 2
|
||
lda #0
|
||
sta (pStack) Type
|
||
ldy #1
|
||
sta (pStack),y Qual
|
||
|
||
jsr .7
|
||
bcs .99
|
||
|
||
ldy #1
|
||
lda (pStack),y
|
||
pha
|
||
lda (pStack)
|
||
tay Y = Type
|
||
pla A = Qual
|
||
|
||
clc
|
||
|
||
.99 >LEAVE
|
||
rts
|
||
|
||
.7 jmp (J.CSH.TMODS,x)
|
||
*--------------------------------------
|
||
CSH.NewKey >PUSHA
|
||
>PUSHW ZPInputBufPtr
|
||
>SYSCALL SListNewKey
|
||
bcs .9
|
||
|
||
pha
|
||
phy
|
||
|
||
txa
|
||
* clc
|
||
adc ZPInputBufPtr
|
||
sta ZPInputBufPtr
|
||
bcc .1
|
||
|
||
inc ZPInputBufPtr+1
|
||
|
||
.1 clc
|
||
ply
|
||
pla
|
||
.9 rts
|
||
*--------------------------------------
|
||
* Y,A = Type/Qual
|
||
*--------------------------------------
|
||
CSH.SetVarValue cpy ZPVarType
|
||
bne .99
|
||
|
||
cmp ZPVarQual
|
||
bne .99
|
||
|
||
ldy #0
|
||
|
||
.1 lda (pStack)
|
||
sta (ZPVarDataPtr),y
|
||
inc pStack
|
||
iny
|
||
cpy ZPVarSizeOf
|
||
bne .1
|
||
|
||
clc
|
||
rts
|
||
|
||
.99 lda #E.TMISMATCH
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
CSH.GetDefine >PUSHB.G CSH.hDefines
|
||
|
||
jsr CSH.Get
|
||
bcs .9
|
||
|
||
pha
|
||
phy
|
||
>PUSHB.G CSH.hDefines
|
||
ply
|
||
pla
|
||
>PUSHYA KeyID
|
||
|
||
>PUSHWZ Allocate..
|
||
>PUSHWZ len = 0 (string mode)
|
||
>PUSHWZ From Start
|
||
>SYSCALL SListGetData
|
||
bcs .9
|
||
|
||
stx hDefine
|
||
|
||
>LDYA ZPInputBufPtr
|
||
>STYA.G CSH.SaveDefine
|
||
|
||
txa
|
||
>SYSCALL GetMemPtr
|
||
>STYA ZPInputBufPtr
|
||
|
||
.9 rts
|
||
*--------------------------------------
|
||
CSH.GetVar >PUSHB.G CSH.hSymbols
|
||
|
||
CSH.Get >PUSHW ZPInputBufPtr
|
||
>SYSCALL SListLookup
|
||
bcs .9
|
||
|
||
pha
|
||
|
||
txa
|
||
* clc
|
||
adc ZPInputBufPtr
|
||
sta ZPInputBufPtr
|
||
bcc .1
|
||
|
||
inc ZPInputBufPtr+1
|
||
clc
|
||
|
||
.1 pla Y,A = VarID
|
||
|
||
.9 rts
|
||
*--------------------------------------
|
||
CSH.GetVarDef phy
|
||
pha
|
||
>PUSHB.G CSH.hSymbols
|
||
|
||
pla
|
||
>PUSHA
|
||
pla
|
||
>PUSHA KeyID
|
||
|
||
>PUSHWI ZPVarDef
|
||
>PUSHWI 8 8 bytes
|
||
>PUSHWZ From Start
|
||
>SYSCALL SListGetData
|
||
rts
|
||
*--------------------------------------
|
||
* Input : Value on Stack, Y,A = Type/Qual
|
||
* Output : CC = true, CS = false
|
||
*--------------------------------------
|
||
CSH.IsValue0 cpy #CSH.T.FLOAT
|
||
bcc .1 char,int,long
|
||
|
||
lda CSH.TYPESIZE-1,y
|
||
lda (ZPVarDataPtr),y
|
||
bne .9
|
||
|
||
.8 clc
|
||
rts
|
||
|
||
.1 jsr CSH.GetVarSize
|
||
tax
|
||
|
||
lda #0
|
||
|
||
.2 ora (pStack)
|
||
inc pStack
|
||
dex
|
||
bne .2
|
||
|
||
tax
|
||
beq .8
|
||
|
||
.9 sec
|
||
rts
|
||
*--------------------------------------
|
||
* Stack
|
||
*--------------------------------------
|
||
CSH.CheckStack tax
|
||
>LDA.G CSH.StackPtr
|
||
beq .9
|
||
|
||
tay
|
||
txa
|
||
cmp (ZPCSHStack),y
|
||
bne .9
|
||
|
||
clc
|
||
rts
|
||
|
||
.9 lda #E.CSYN
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
CSH.Push pha
|
||
>LDA.G CSH.StackPtr
|
||
dec
|
||
beq .9
|
||
sta (pData),y
|
||
tay
|
||
pla
|
||
sta (ZPCSHStack),y
|
||
clc
|
||
rts
|
||
|
||
.9 pla
|
||
lda #E.STKOVERFLOW
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
CSH.Pop >LDA.G CSH.StackPtr
|
||
beq .9
|
||
|
||
pha
|
||
inc
|
||
sta (pData),y
|
||
ply
|
||
lda (ZPCSHStack),y
|
||
clc
|
||
rts
|
||
|
||
.9 lda #E.STACKERROR
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
* CHAR related Subs.....
|
||
*--------------------------------------
|
||
CSH.GetOPLen ldy #0
|
||
.1 iny
|
||
lda (ZPInputBufPtr),y
|
||
beq .8
|
||
|
||
jsr CSH.IsOPChar
|
||
bcc .1
|
||
.8 tya
|
||
rts
|
||
*--------------------------------------
|
||
CSH.GetIDLen ldy #0
|
||
.1 iny
|
||
lda (ZPInputBufPtr),y
|
||
beq .8
|
||
|
||
jsr CSH.IsLetterOrDigit
|
||
bcc .1
|
||
.8 tya
|
||
rts
|
||
*--------------------------------------
|
||
CSH.SkipStatement
|
||
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
CSH.SkipBlock ldy #0 not in "", TOTO:skip comments
|
||
|
||
ldx #1 starting with 1 '{' for now....
|
||
|
||
.1 jsr CSH.GetNextCharNB
|
||
bcs .9
|
||
|
||
cmp #'{'
|
||
bne .2
|
||
|
||
tya
|
||
bmi .1
|
||
|
||
inx
|
||
bra .1
|
||
|
||
.2 cmp #'}'
|
||
bne .3
|
||
|
||
tya
|
||
bmi .1
|
||
|
||
dex
|
||
bne .1
|
||
|
||
clc
|
||
rts
|
||
.3 cmp #'"'
|
||
bne .1
|
||
|
||
tya
|
||
eor #$ff
|
||
tay
|
||
bra .1
|
||
|
||
.9 rts
|
||
*--------------------------------------
|
||
CSH.GetCharNB jsr CSH.GetChar
|
||
bcs CSH.GetNextCharNB.RTS
|
||
|
||
jsr CSH.CheckCharNB
|
||
bcc CSH.GetNextCharNB.RTS
|
||
*--------------------------------------
|
||
CSH.GetNextCharNB
|
||
jsr CSH.GetNextChar
|
||
bcs CSH.GetNextCharNB.RTS
|
||
|
||
jsr CSH.CheckCharNB
|
||
bcs CSH.GetNextCharNB
|
||
|
||
CSH.GetNextCharNB.RTS
|
||
rts
|
||
*--------------------------------------
|
||
CSH.CheckSpace jsr CSH.GetChar
|
||
bcs .90
|
||
|
||
cmp #C.SPACE
|
||
bne .90
|
||
|
||
jsr CSH.GetNextCharNB
|
||
bcc .99
|
||
|
||
.90 lda #E.CSYN
|
||
sec
|
||
.99 rts
|
||
*--------------------------------------
|
||
CSH.CheckCharNB cmp #C.SPACE
|
||
beq .9
|
||
|
||
cmp #C.LF
|
||
beq .9
|
||
|
||
cmp #C.TAB
|
||
beq .9
|
||
|
||
clc
|
||
.9 rts
|
||
*--------------------------------------
|
||
CSH.GetNextChar inc ZPInputBufPtr
|
||
bne CSH.GetChar
|
||
|
||
inc ZPInputBufPtr+1
|
||
*--------------------------------------
|
||
CSH.GetChar lda (ZPInputBufPtr)
|
||
bne .8
|
||
|
||
lda hDefine
|
||
beq .1
|
||
|
||
stz hDefine
|
||
|
||
phx
|
||
phy
|
||
>SYSCALL FreeMem
|
||
|
||
>LDYA.G CSH.SaveDefine
|
||
>STYA ZPInputBufPtr
|
||
|
||
ply
|
||
plx
|
||
bra CSH.GetChar
|
||
|
||
.1 lda hInclude
|
||
beq .9
|
||
|
||
stz hInclude
|
||
phx
|
||
phy
|
||
>SYSCALL FreeMem
|
||
|
||
>LDYA.G CSH.SaveInclude
|
||
>STYA ZPInputBufPtr
|
||
|
||
ply
|
||
plx
|
||
bra CSH.GetChar
|
||
|
||
.8 clc
|
||
rts
|
||
|
||
.9 lda #MLI.E.EOF
|
||
sec
|
||
rts
|
||
*---------------------------------------
|
||
CSH.IsEndArg
|
||
*---------------------------------------
|
||
CSH.IsOPChar ldx #CSH.OPChars.Cnt-1
|
||
|
||
.1 cmp CSH.OPChars,x
|
||
beq .8
|
||
|
||
dex
|
||
bpl .1
|
||
|
||
sec
|
||
rts
|
||
|
||
.8 clc
|
||
rts
|
||
*---------------------------------------
|
||
CSH.IsLetterOrDigit
|
||
jsr CSH.IsDigit10
|
||
bcc CSH.IsLetterRTS
|
||
*---------------------------------------
|
||
CSH.IsLetter cmp #'_'
|
||
bne .1
|
||
|
||
clc
|
||
rts
|
||
|
||
.1 cmp #'A'
|
||
bcc .9
|
||
|
||
cmp #'Z'+1
|
||
bcc CSH.IsLetterRTS
|
||
|
||
cmp #'a'
|
||
bcc .9
|
||
|
||
cmp #'z'+1
|
||
|
||
rts CC if lowercase
|
||
|
||
.9 sec
|
||
CSH.IsLetterRTS rts
|
||
*---------------------------------------
|
||
CSH.IsDigit10 cmp #'0'
|
||
bcc .9
|
||
|
||
cmp #'9'+1
|
||
rts cc if ok, cs if not
|
||
|
||
.9 sec
|
||
rts
|
||
*--------------------------------------
|
||
* in : Y,A = type/qual
|
||
* out : A = size
|
||
*--------------------------------------
|
||
CSH.GetVarSize and #CSH.Q.PPPOINTER
|
||
bne .2
|
||
|
||
lda CSH.TYPESIZE-1,y
|
||
|
||
clc
|
||
rts
|
||
|
||
.2 lda #2 pointer
|
||
sec +1 for hMem Storage
|
||
rts
|
||
*--------------------------------------
|
||
MAN
|
||
SAVE usr/src/bin/csh.s.core
|
||
LOAD usr/src/bin/csh.s
|
||
ASM
|