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https://github.com/SEPPDROID/Digital-Research-Source-Code.git
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1 line
2.4 KiB
Plaintext
1 line
2.4 KiB
Plaintext
$title ('MP/M 1.1 Erase File')
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erase:
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do;
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$include (copyrt.lit)
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/*
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Revised:
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19 Jan 80 by Thomas Rolander
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*/
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declare start label;
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declare jmp$to$start structure (
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jmp$instr byte,
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jmp$location address ) data (
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0C3H,
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.start-3);
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mon1:
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procedure (func,info) external;
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declare func byte;
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declare info address;
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end mon1;
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mon2:
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procedure (func,info) byte external;
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declare func byte;
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declare info address;
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end mon2;
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declare fcb (1) byte external;
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declare fcb16 (1) byte external;
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declare tbuff (1) byte external;
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/**************************************
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* *
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* B D O S Externals *
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* *
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**************************************/
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read$console:
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procedure byte;
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return mon2 (1,0);
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end read$console;
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print$console$buffer:
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procedure (buffer$address);
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declare buffer$address address;
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call mon1 (9,buffer$address);
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end print$console$buffer;
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search$first:
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procedure (fcb$address) byte;
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declare fcb$address address;
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return mon2 (17,fcb$address);
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end search$first;
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search$next:
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procedure (fcb$address) byte;
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declare fcb$address address;
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return mon2 (18,fcb$address);
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end search$next;
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delete$file:
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procedure (fcb$address);
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declare fcb$address address;
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call mon1 (19,fcb$address);
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end delete$file;
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get$user$code:
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procedure byte;
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return mon2 (32,0ffh);
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end get$user$code;
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terminate:
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procedure;
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call mon1 (143,0);
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end terminate;
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/*
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Main Program
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*/
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declare (i,response,user,dcnt) byte;
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declare last$dseg$byte byte
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initial (0);
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start:
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do;
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user = get$user$code;
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i = 0;
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do while fcb(i:=i+1) = '?';
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;
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end;
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if i > 11 then
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do;
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call print$console$buffer (.(
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'Confirm delete all user files (Y/N)?','$'));
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response = read$console;
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if not ((response = 'y') or
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(response = 'Y'))
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then call terminate;
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end;
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dcnt = search$first (.fcb);
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do while dcnt <> 0ffh;
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if tbuff(ror(dcnt,3) and 0110$0000b) = user then
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do;
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call delete$file (.fcb);
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call terminate;
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end;
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dcnt = search$next (.fcb);
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end;
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call print$console$buffer (.(
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'No file','$'));
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call terminate;
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end;
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end erase;
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