* SAMPLE PROGRAM: COPY A GIVEN FILE TO STANDARD OUTPUT
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* SAMPLE PROGRAM: COPY A GIVEN FILE TO STANDARD OUTPUT
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t IS $255
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t IS $255
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argc IS $0
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argc IS $0
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argv IS $1
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argv IS $1
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s IS $2
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s IS $2
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Buf_Size IS 5 ridiculously small for testing
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Buf_Size IS 5 ridiculously small for testing
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LOC Data_Segment
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LOC Data_Segment
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Buffer LOC @+Buf_Size
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Buffer LOC @+Buf_Size
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GREG @
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GREG @
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Arg0 OCTA 0,TextRead
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Arg0 OCTA 0,TextRead
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Arg1 OCTA Buffer,Buf_Size
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Arg1 OCTA Buffer,Buf_Size
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LOC #200 main(argc,argv) {
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LOC #200 main(argc,argv) {
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Main CMP t,argc,2 if (argc==2) goto openit
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Main CMP t,argc,2 if (argc==2) goto openit
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PBZ t,OpenIt
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PBZ t,OpenIt
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GETA t,1F fputs("Usage: ",stderr)
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GETA t,1F fputs("Usage: ",stderr)
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TRAP 0,Fputs,StdErr
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TRAP 0,Fputs,StdErr
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LDOU t,argv,0 fputs(argv[0],stderr)
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LDOU t,argv,0 fputs(argv[0],stderr)
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TRAP 0,Fputs,StdErr
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TRAP 0,Fputs,StdErr
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GETA t,2F fputs(" filename\n",stderr)
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GETA t,2F fputs(" filename\n",stderr)
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Quit TRAP 0,Fputs,StdErr
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Quit TRAP 0,Fputs,StdErr
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NEG t,0,1 quit: exit(-1)
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NEG t,0,1 quit: exit(-1)
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TRAP 0,Halt,0
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TRAP 0,Halt,0
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1H BYTE "Usage: ",0
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1H BYTE "Usage: ",0
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LOC (@+3)&-4 align to tetrabyte
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LOC (@+3)&-4 align to tetrabyte
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2H BYTE " filename",#a,0
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2H BYTE " filename",#a,0
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OpenIt LDOU s,argv,8 openit: s=argv[1]
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OpenIt LDOU s,argv,8 openit: s=argv[1]
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STOU s,Arg0
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STOU s,Arg0
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LDA t,Arg0 fopen(argv[1],"r",file[3])
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LDA t,Arg0 fopen(argv[1],"r",file[3])
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TRAP 0,Fopen,3
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TRAP 0,Fopen,3
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PBNN t,CopyIt if (no error) goto copyit
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PBNN t,CopyIt if (no error) goto copyit
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GETA t,1F fputs("Can't open file ",stderr)
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GETA t,1F fputs("Can't open file ",stderr)
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TRAP 0,Fputs,StdErr
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TRAP 0,Fputs,StdErr
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SET t,s fputs(argv[1],stderr)
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SET t,s fputs(argv[1],stderr)
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TRAP 0,Fputs,StdErr
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TRAP 0,Fputs,StdErr
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GETA t,2F fputs("!\n",stderr)
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GETA t,2F fputs("!\n",stderr)
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JMP Quit goto quit
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JMP Quit goto quit
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1H BYTE "Can't open file ",0
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1H BYTE "Can't open file ",0
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LOC (@+3)&-4 align to tetrabyte
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LOC (@+3)&-4 align to tetrabyte
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2H BYTE "!",#a,0
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2H BYTE "!",#a,0
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CopyIt LDA t,Arg1 copyit:
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CopyIt LDA t,Arg1 copyit:
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TRAP 0,Fread,3 items=fread(buffer,1,buf_size,file[3])
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TRAP 0,Fread,3 items=fread(buffer,1,buf_size,file[3])
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BN t,EndIt if (items < buf_size) goto endit
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BN t,EndIt if (items < buf_size) goto endit
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LDA t,Arg1 items=fwrite(buffer,1,buf_size,stdout)
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LDA t,Arg1 items=fwrite(buffer,1,buf_size,stdout)
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TRAP 0,Fwrite,StdOut
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TRAP 0,Fwrite,StdOut
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PBNN t,CopyIt if (items >= buf_size) goto copyit
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PBNN t,CopyIt if (items >= buf_size) goto copyit
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Trouble GETA t,1F trouble: fputs("Trouble w...!",stderr)
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Trouble GETA t,1F trouble: fputs("Trouble w...!",stderr)
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JMP Quit goto quit
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JMP Quit goto quit
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1H BYTE "Trouble writing StdOut!",#a,0
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1H BYTE "Trouble writing StdOut!",#a,0
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EndIt INCL t,Buf_Size
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EndIt INCL t,Buf_Size
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BN t,ReadErr if (ferror(file[3])) goto readerr
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BN t,ReadErr if (ferror(file[3])) goto readerr
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STO t,Arg1+8
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STO t,Arg1+8
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LDA t,Arg1 n=fwrite(buffer,1,items,stdout)
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LDA t,Arg1 n=fwrite(buffer,1,items,stdout)
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TRAP 0,Fwrite,StdOut
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TRAP 0,Fwrite,StdOut
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BN t,Trouble if (n < items) goto trouble
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BN t,Trouble if (n < items) goto trouble
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TRAP 0,Halt,0 exit(0)
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TRAP 0,Halt,0 exit(0)
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ReadErr GETA t,1F readerr: fputs("Trouble r...!",stderr)
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ReadErr GETA t,1F readerr: fputs("Trouble r...!",stderr)
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JMP Quit goto quit }
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JMP Quit goto quit }
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1H BYTE "Trouble reading!",#a,0
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1H BYTE "Trouble reading!",#a,0
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