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added error 247 - input buffer overlap

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linbuf & progbuf might overlap when automatic statement expansion (N+1
-> N=N+1) is used excessively.
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Klaus2m5 2015-12-10 14:24:11 +01:00
parent f8e18b96cd
commit 401fbd077b
1 changed files with 9 additions and 1 deletions
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vtl02sg.a65
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@ -249,6 +249,7 @@
; 244 value or variable missing after operator ; 244 value or variable missing after operator
; 245 missing closing parenthesis ; 245 missing closing parenthesis
; 246 out of memory (*-&) ; 246 out of memory (*-&)
; 247 overlap in input buffer, split program line
; ;
; internal changes: ; internal changes:
; added required atomic variable fetch & store. ; added required atomic variable fetch & store.
@ -1732,7 +1733,14 @@ syndbl:
sta prgbuf,x sta prgbuf,x
inx inx
ldy arg+4 ; repeat variable & operator ldy arg+4 ; repeat variable & operator
jmp syndbl1 tya
clc ; test buffer will not overlap
adc #$20
sta arg+4
cpx arg+4
bcc syndbl1
lda #$f7 ; buffers overlap error
jmp verr
synerr3: synerr3:
lda #$f2 ; invalid or missing operator lda #$f2 ; invalid or missing operator