mirror of https://github.com/A2osX/A2osX.git
390 lines
6.1 KiB
Plaintext
390 lines
6.1 KiB
Plaintext
NEW
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AUTO 3,1
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.LIST OFF
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*--------------------------------------
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* Built in Keywords
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*--------------------------------------
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CC.KW.JMP txa
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>STA.G CC.CmdSave
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jmp (J.CC.KW,x)
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*--------------------------------------
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CC.KW.WHILE jsr CC.PushCS push cont: for WHILE loop
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bcs CC.KW.IF.RTS
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*--------------------------------------
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CC.KW.IF jsr CC.GetCharNB
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bcs .9
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cmp #'('
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bne .9
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jsr CC.GetNextCharNB
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bcs .9
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jsr CC.EXP.Eval00 Any var type
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bcs .99
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jsr CC.KW.TestZero
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jsr CC.PushCS push place to set JMP false
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bcs .99
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jsr CC.KW.ZPCCCodeAdd2
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jsr CC.GetCharNB
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bcs .99
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cmp #')'
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bne .9
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jmp CC.KW.BEGIN
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.9 lda #E.CSYN
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sec
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.99
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CC.KW.IF.RTS rts
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*--------------------------------------
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CC.KW.IF.END jsr CC.PopYA
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bcs .9
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>STYA ZPPtr1 set JMP false
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lda ZPCCCode
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sta (ZPPtr1)
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ldy #1
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lda ZPCCCode+1
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sta (ZPPtr1),y
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* clc
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.9 rts
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*--------------------------------------
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CC.KW.ELSE
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clc
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rts
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*--------------------------------------
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CC.KW.ELSE.END
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clc
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rts
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*--------------------------------------
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CC.KW.WHILE.END jsr CC.PopYA Get JMP false location
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bcs .9
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>STYA ZPPtr1
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jsr CC.PopYA Get cont: address
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bcs .9
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phy
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tay HI byte
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plx
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lda #$4C JMP cont:
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jsr CODE.TOABSYX
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lda ZPCCCode
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sta (ZPPtr1)
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ldy #1
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lda ZPCCCode+1
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sta (ZPPtr1),y
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clc
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.9 rts
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*--------------------------------------
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CC.KW.DO
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lda #E.CSYN
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sec
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rts
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*--------------------------------------
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CC.KW.DO.END
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clc
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rts
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*--------------------------------------
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* for (e1;e2;e3) s;
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*
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* e1;
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* while (e2)
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* {
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* s;
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* cont:
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* e3;
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* }
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* break:
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*--------------------------------------
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CC.KW.FOR jsr CC.GetCharNB
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bcs .19
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cmp #'('
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bne .19
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jsr CC.GetNextCharNB
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bcs .19
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jsr CC.EXP.Eval00 get e1
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bcs .29
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jsr CC.KW.StackDiscard
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jsr CC.GetCharNB
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bcs .19
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cmp #';'
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bne .19
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jsr CC.GetNextCharNB skip ';'
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.19 bcs .9
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*--------------------------------------
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>LDYA ZPCCCode
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>STYA ZPPtr2 save LOOP address
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jsr CC.EXP.Eval00 get e2
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.29 bcs .99
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jsr CC.KW.TestZero
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jsr CC.PushCS push place to set JMP break:
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bcs .99
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jsr CC.KW.ZPCCCodeAdd2
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lda #$20 emit JSR s;
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jsr CODE.EmitByte
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>LDYA ZPCCCode
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>STYA ZPPtr3 save place to set JSR s
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jsr CC.KW.ZPCCCodeAdd2 space for 2-bytes address
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jsr CC.GetCharNB
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bcs .9
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cmp #';'
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bne .9
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jsr CC.GetNextCharNB skip ';'
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bcs .9
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*--------------------------------------
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jsr CC.PushCS push cont: address
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jsr CC.EXP.Eval00 get e3
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bcs .99
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jsr CC.KW.StackDiscard
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jsr CC.GetCharNB
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bcs .9
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cmp #')'
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bne .9
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lda #$4C
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ldx ZPPtr2
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ldy ZPPtr2+1
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jsr CODE.TOABSYX JMP e2
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lda ZPCCCode setup JSR s;
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sta (ZPPtr3)
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lda ZPCCCode+1
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ldy #1
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sta (ZPPtr3),y
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jmp CC.KW.BEGIN
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.9 lda #E.CSYN
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sec
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.99 rts
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*--------------------------------------
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CC.KW.FOR.END lda #$60
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jsr CODE.EmitByte set RTS for JSR s;
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jsr CC.Pop
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bcs .9
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jsr CC.Pop discard cont: location
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bcs .9
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jsr CC.PopYA
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bcs .9
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>STYA ZPPtr1 get JMP break: location
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lda ZPCCCode
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sta (ZPPtr1)
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ldy #1
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lda ZPCCCode+1
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sta (ZPPtr1),y
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clc
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.9 rts
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*--------------------------------------
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CC.KW.SWITCH
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CC.KW.CASE
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CC.KW.BREAK
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CC.KW.CONTINUE
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lda #E.CSYN
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sec
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rts
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*--------------------------------------
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CC.KW.RETURN ldy CStackPtr
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beq .9
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.1 iny skip ; or }
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beq .9
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lda (ZPCCStack),y
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bmi .7 f()
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tya
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clc
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adc #3 skip CPStmt (4 bytes)
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tay
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bcc .1
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.9 lda #E.STACKERROR
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sec
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.99 rts
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.7 iny skip bState
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iny skip Locals
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iny get SYM.T
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lda (ZPCCStack),y
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pha
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iny get SYM.Q
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lda (ZPCCStack),y
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ply
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jsr CC.EXP.Eval
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bcs .99
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jsr CC.SYM.GetYASizeOfInAXC Y,A=T/Q
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tax X = sizeof
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jsr CODE.SetRetValue
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jsr CODE.Leave
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clc
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rts
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*--------------------------------------
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CC.KW.SIZEOF
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*--------------------------------------
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CC.KW.TYPEDEF lda #E.CSYN
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sec
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rts
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*--------------------------------------
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CC.KW.STRUCT >ENTER 4
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jsr CC.GetCharNB
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bcs .99
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>LDA.G CC.hTags
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jsr CC.SYM.NewKey
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bcs .99
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sta (pStack) Y,A = KeyID
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tya
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ldy #1
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sta (pStack),y
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jsr CC.GetNextCharNB
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bcs .99
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cmp #'{'
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bne .99
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.1 jsr CC.GetNextCharNB
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bcs .99
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cmp #'}'
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bne .1
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jsr CC.GetNextCharNB skip }
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clc
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.99 >LEAVE
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rts
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*--------------------------------------
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CC.KW.BEGIN jsr CC.GetNextCharNB
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bcs .9
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cmp #'{'
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bne .7
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>LDA.G CC.CmdSave
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tax
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jmp CC.STMT.CPStmt
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.7 >LDA.G CC.CmdSave
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jsr CC.Push
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bcs .99
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lda #';'
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jmp CC.Push
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.9 lda #E.CSYN
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sec
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.99 rts
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*--------------------------------------
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* Input : Value on Stack, Y,A = Type/Qual
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* Output : CC = true, CS = false
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*--------------------------------------
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CC.KW.TestZero jsr CC.SYM.GetYASizeOfInAXC
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tax
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.6 lda #$A2 LDX #imm
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jsr CODE.EmitByte
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txa
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jsr CODE.EmitByte
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ldx #PCC.Test0X.L
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ldy #0
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.7 lda PCC.Test0X,y
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jsr CODE.EmitByte
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iny
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dex
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bne .7
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clc
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rts
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*--------------------------------------
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CC.KW.ZPCCCodeAdd2
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lda ZPCCCode
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clc
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adc #2
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sta ZPCCCode
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bcc .8
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inc ZPCCCode+1
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.8 rts
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*--------------------------------------
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* Input : Value on Stack, Y,A = Type/Qual
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*--------------------------------------
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CC.KW.StackDiscard
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jsr CC.TYPE.SizeOf
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txa
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beq .8 void
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jsr CODE.AddLocal
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.8 clc
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.9 rts
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*--------------------------------------
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MAN
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SAVE usr/src/bin/cc.s.kw
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LOAD usr/src/bin/cc.s
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ASM
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