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prodos-more
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Fix runtime errors

This commit is contained in:
Bill Chatfield 2024-02-04 16:54:44 -05:00
parent 2d2bae6f96
commit d564d8d7dd
1 changed files with 19 additions and 8 deletions
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27
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@ -169,15 +169,17 @@ MAIN CLD ;CLEAR DECIMAL FLG, AVOID CRASH
>PUTS PROMPT
JSR GETLN1 ;LENGTH IN X, CR AT END
CPX #0 ;IS THE LENGTH ZERO?
BEQ END ;USER JUST PRESSED RETURN
CPIN FILENAME ;COPY "IN" BUF TO FILENAME
BNE CONT1 ;USER JUST PRESSED RETURN
JMP :END
CONT1 CPIN FILENAME ;COPY "IN" BUF TO FILENAME
*
* GET FILE I/O BUFFER FOR OPEN CALL
*
LDA #4 ;FOUR 256 BYTE PAGES = 1KB
JSR GETBUFR ;GET BUF FROM BASIC.SYSTEM
BCS :OBUFERR ;CARRY CLEAR MEANS NO ERROR
STA OBUFADDR+1 ;GETBUFR RETURNS HIBYTE IN A
BCC CONT2
JMP :OBUFERR ;CARRY CLEAR MEANS NO ERROR
CONT2 STA OBUFADDR+1 ;GETBUFR RETURNS HIBYTE IN A
LDA #0 ;PREPARE
STA OBUFADDR ;LOBYTE IS 0 B/C ADDR OF PAGE
*
@ -198,8 +200,9 @@ MAIN CLD ;CLEAR DECIMAL FLG, AVOID CRASH
*
LDA #1 ;ONE 256 BYTE BUFFER
JSR GETBUFR ;CALL BASIC.SYSTEM SUB
BCS :RBUFERR ;CARRY CLR MEANS NO ERROR
BCS :RBUFERR ;CARRY SET MEANS ERROR
STA RBADDR+1 ;STORE HI-BYTE
STA ZP_A1H ;FOR 0-PAGE INDIRECTION
LDA #0 ;0 FOR LO-BYTE
STA RBADDR ;STORE IT
STA ZP.A1L ;AGAIN, FOR 0-PAGE INDIRECTION
@ -220,7 +223,15 @@ MAIN CLD ;CLEAR DECIMAL FLG, AVOID CRASH
DA CLOSPRMS
BEQ :FREEOBUF
:OPENERR JSR ERRPROC
:OPENERR STA ERRCODE
PUTS OERRMSG
PUTS FILENAME
LDA #"'"
JSR COUT
LDA #":"
JSR COUT
LDA ERRCODE
JSR ERRPROC
:FREEOBUF JSR FREEBUFR ;FREE OPEN I/O BUFFER
JMP :END
:OBUFERR JSR ERRPROC
@ -414,6 +425,8 @@ USRQUIT DS 1
BUFCHAR DS 1
USRCHAR DS 1
OERRMSG STR "FAILED TO OPEN FILE '"
ENVIEW STR 'ENTERING VIEWFILE'
EXVIEW STR 'EXITING VIEWFILE'
ENSTATB STR 'ENTERING STATUSBAR'
@ -448,5 +461,3 @@ CLOSFNUM .BS 1
* MUST START ON PAGE BOUNDRY
*OPENBUF DS 1024
*READBUF DS BUFSIZE
: